Latest / 'Bone Up' / BoneUP Live @ ASBMR 2026 - Part 1
Transcript
- 0:00Hello, and welcome to Bone Up, the podcast all
- 0:04about bones. I'm David Armstrong. Hi, and I'm
- 0:07Richie Abel. And together, we're going to bring
- 0:10you the latest in bone research. So whether you
- 0:13are a patient living with bone disease, a family
- 0:15member, a healthcare professional, or a scientist,
- 0:18you've come to the right place. So if you want
- 0:20to learn more about our infrastructure of calcified
- 0:24collagen, this is Bone Up. Hello and welcome
- 0:52to a very, very special episode of Bone Up Live
- 0:56because for the first time we've crossed the
- 0:59Atlantic and we're here at the ASBMR 2026 in
- 1:04Boston, Massachusetts. We're really excited to
- 1:08be here in Boston to bring you this live conference.
- 1:10We were invited here by Dr. Judy Keen, the chief
- 1:13executive of ASBMR, and Professor Emma Duncan,
- 1:16the president of ASBMR, because they heard our
- 1:19lovely ECTS episodes and they thought it would
- 1:21be nice if we could come here and help share
- 1:23the conference with the people who aren't able
- 1:25to make it. Hopefully we're going to be able
- 1:27to talk to some PhD students and post -docs who
- 1:30are taking part in their first research projects.
- 1:32We can speak to some mid -career researchers
- 1:35who are leading a lab for the first time. time
- 1:36in developing their research vision and we'll
- 1:38also try and talk to some of the professors at
- 1:40the conference try and get their take on bone
- 1:42research and what's going on in the world and
- 1:45this year hopefully we're also going to be able
- 1:47to talk to some of the people who are bringing
- 1:48new technologies into clinical practice they're
- 1:51going to improve diagnostics that are going to
- 1:53improve screening and also new treatments so
- 1:56join us I think we're going to have a really
- 1:58good lineup for you. We've already had a look
- 2:01at the programme, had a look at the posters and
- 2:04certainly I think this is a great opportunity
- 2:06to bring clinicians and scientists and patients
- 2:09together and you can judge how successful we
- 2:13have been at bringing you a flavour of the conference.
- 2:22Listeners, we're here at ASBMR and we're here
- 2:24with a really excellent guest today. We've got
- 2:26Professor Christopher Hernandez from the University
- 2:28of California, San Francisco. Welcome to the
- 2:30show. Thanks for having me. We're delighted to
- 2:33have you on the show today. I saw your talk yesterday
- 2:36about the relationship between the microbiome
- 2:38and bone health, and I'm sure this is something
- 2:40our listeners are going to be really keen to
- 2:41hear about. Could you tell us what you told the
- 2:44audience yesterday? Yeah, so over the last 10
- 2:47years we've done a series of studies, and these
- 2:49are studies done in mice, trying to understand
- 2:52how the gut microbiome might be influencing bone.
- 2:55And the number one thing we have observed is
- 2:58that changes in the gut microbiome can influence
- 3:01the material properties of the bone matrix itself.
- 3:04So in our studies, we manipulate the microbiome
- 3:08in the mouse and we don't see a change in how
- 3:10big the bone is or how dense the bone is, but
- 3:13we see an effect on the mechanical properties
- 3:15of the bone matrix itself. And what kind of experiments
- 3:19did you do in the mice? Yesterday, you spoke
- 3:21about the very first experiment you did where
- 3:23you gave the mice antibiotics. Why did you give
- 3:26them antibiotics? Well the antibiotics we give
- 3:31are used to change the composition of the gut
- 3:33microbiome. So the inside our guts there's about
- 3:37a thousand different microbial species all at
- 3:40different abundances and they interact with each
- 3:41other and then they also interact with the host
- 3:44and then can have effects on our health. all
- 3:47across the body. There are some people who will
- 3:52do experiments where they knock out the entire
- 3:54gut microbiome, but I think that's pretty extreme.
- 3:57It's a nice experimental model. So instead we
- 4:00gave two narrow spectrum antibiotics in the drinking
- 4:03water of the mice and that changes the composition
- 4:06of the gut microbiome. So there's still microbes
- 4:08there, still approximately the same number of
- 4:10microbes, it's just a different population is
- 4:13there. And what we found is that different population
- 4:15is then having an effect on the bone matrix.
- 4:18And my patients will immediately be interested
- 4:21when you say that because obviously lots of people
- 4:23with osteoporosis are prescribed antibiotics.
- 4:27Are you suggesting that there can be long -term
- 4:29changes in the bacteria living in their gut after
- 4:34a single course of antibiotics and that that
- 4:35could have potentially long -term consequences
- 4:38for their bone? Yes, so the microbiome community
- 4:41has studied this in great detail. So for the
- 4:43most part, if you take a course of oral antibiotics,
- 4:46like a week or so, your microbiome will normally
- 4:49go back to normal, will come back to normal within
- 4:52weeks to months afterwards. And so it's not really
- 4:56a concern for most of us. In this case, the antibiotics
- 4:59we give our mice, it's pretty extreme change.
- 5:02They're not the antibiotics we use to treat an
- 5:05infection because we choose antibiotics that
- 5:07aren't absorbed in the gut lining. So then we
- 5:10don't have to worry about the antibiotic itself
- 5:13having an effect on bone cells. We just see the
- 5:16effect of that change in the microbes and what
- 5:19that does downstream to the bone. So that's reassuring
- 5:22at one level. Presumably, but different humans
- 5:25have different types of microbiome, because that's
- 5:28why you're interested in this, to see how different
- 5:30people, this would affect them differently, isn't
- 5:32that right? Yes, exactly, and so we all have
- 5:35a slightly different microbiome. The thing about
- 5:38the gut microbiome is it's formed when we're
- 5:41young, and it mostly is formed by the time three
- 5:44or four years of age, and then it stays mostly
- 5:47the same through the rest of your life, but it
- 5:50is editable. And so if you change your diet drastically,
- 5:54you can change the composition of your gut microbiome
- 5:56over short or even long time periods. And you
- 6:00did that editing in another one of your experiments
- 6:02where you took the gut microbiome from older
- 6:06mice and gave it to younger mice. What did you
- 6:09find there? Yeah, so that's a study that we're
- 6:12presenting tomorrow at the ASB Mar. And we did
- 6:15what's called a fecal microbiota transplant.
- 6:18and this is used clinically for patients who
- 6:20have a C. difficile infection where you can take
- 6:24the microbiota from one person and give it to
- 6:27another. Yes, it is a transfer of the feces,
- 6:30right? So it doesn't sound very pleasant, but
- 6:33if you have one of these infections with C. difficile,
- 6:36it's life -saving because what happens is the...
- 6:40microbial community that gets donated, then out
- 6:43competes the C. difficile. So normally you have
- 6:46a C. difficile infection. You use antibiotics
- 6:48and try and get rid of it. And that sometimes
- 6:52doesn't work. Instead, you put in a community
- 6:54of microbes that are benign, but they eat all
- 6:58the food that the C. difficile would eat. And
- 7:00then the C. difficile goes down and it's not
- 7:02present. And while having a C. difficile infection
- 7:05can be a nasty thing in itself in terms of general
- 7:07health, it potentially can be have per consequences
- 7:11for bones as well? You know, I don't know if
- 7:14the C. difficile infection has an effect on bone.
- 7:16I can't give you a good answer on that one. Come
- 7:18back next year and we'll hear what work you've
- 7:20done on that. But there's another application
- 7:25of the fecal microbiota transplant that's really
- 7:27exciting. Researchers at MD Anderson and in Israel
- 7:31have shown that when patients undergo immunotherapy
- 7:35for cancer, for myeloma cancer, there are some
- 7:39patients who don't respond to the immunotherapy.
- 7:41And they've shown that if they give those patients
- 7:44a fecal microbiota transplant from a patient
- 7:47who did respond to the immunotherapy, suddenly
- 7:50those patients start responding to the immunotherapy.
- 7:53So the power of the gut microbiome to really
- 7:56influence your health is there. It's like a gateway
- 7:59into the immune system in the body, isn't it?
- 8:02Yeah, it regulates the immune system. There are
- 8:05metabolites that are released by the gut microbes
- 8:07that get into the bloodstream that can influence
- 8:09the body, beneficially or potentially detrimentally.
- 8:13I mean, I get the impression as a clinician that
- 8:16we're still quite early on in the microbiome
- 8:19and understanding it, and lots of patients will
- 8:21come to me and say, how can I change my diet?
- 8:24That's what they're most interested in almost,
- 8:26how can I change my diet? And we're not that
- 8:28good at really giving convincing advice tailored
- 8:31to that individual patient yet. Presumably we're
- 8:34quite in the shallow waters here, but there's
- 8:37potential going forward that we could be able
- 8:39to give much more detailed advice and maybe advice
- 8:41about how to change your gut microbiota specifically
- 8:45for your bone health or for other types of health.
- 8:48Exactly, and that's where the microbiome community
- 8:50is really focused. They'd really like to have
- 8:52treatments for people. They'd like to have something
- 8:54you can give people. Now there are people who
- 8:57develop, back to this fecal microbiota transplant
- 9:00idea, they have capsules. of the fecal microbiotic
- 9:05transplant. If you're eating your breakfast,
- 9:06listeners, we should have warned you about this,
- 9:09but go ahead, Chris. So that's one of the strategies
- 9:13people are working on. There are groups that
- 9:15are working on very specific microbial cocktails
- 9:19so that they know exactly what's in there. Right
- 9:21now, it's a person -to -person donation. You
- 9:23have to screen the donation to make sure there
- 9:26isn't something infectious there. But that's
- 9:30the strategy. Now, when you get to the patient
- 9:31diet, We'll talk about the patient diet. I wish
- 9:34I could give better information, but the best
- 9:37information we have now is to eat more fiber.
- 9:41It's always exciting when you see your interest
- 9:43and get all this exciting science and then the
- 9:46bottom line is eat more fruit and veg, which
- 9:48is what we've been telling people for a hundred
- 9:50years. But no, this is important because as you
- 9:53know, one of the reasons we do this podcast is
- 9:56to help give people information so they can distinguish
- 9:59between real science and people just... you know,
- 10:01maybe taking advantage of pseudoscience, so it's
- 10:04really important that we have people like you
- 10:06telling us the real science and where the limits
- 10:09are to that. Yeah, and I know, I spoke to one
- 10:11person and they had their microbiota sequenced
- 10:14and they had all this data and it came out and
- 10:17they're like, can you help me interpret this?
- 10:20And I said, I have no idea what all this means,
- 10:22because we still don't really know what microbial
- 10:25species are really going to be beneficial on.
- 10:26We have some inklings, but... but couldn't really
- 10:29tell you what it means in that data set if your
- 10:31microbiome is healthy. And in terms of just bone
- 10:34and bone health and bone development, we do think
- 10:36a lot about younger people and how you see your
- 10:42microbiota is set maybe when you're age three
- 10:44or four. And that's to do with bone development
- 10:47and achieving peak bone mass and bone health.
- 10:50But there is the potential to change things,
- 10:52I think, from what you're saying, even if you're
- 10:54older. Yes, there is. If you change your diet
- 10:57drastically, there are some studies where people
- 11:00will just travel to another country and then
- 11:02the diet is totally different and they've tracked
- 11:04their gut microbiome, it totally completely changes
- 11:07based on the diet that they're eating there.
- 11:09So even if you're age 60 or 70, you can potentially
- 11:12completely change your gut microbiome. You can
- 11:15change it. For good or for worse, potentially.
- 11:17You can change it. Usually it requires a very
- 11:19sustained change in diet, so a continuous change
- 11:22in it. So that increase in fiber, for example,
- 11:24and you've got to keep doing it, keep doing it.
- 11:26It's not like you can do it for a couple of weeks
- 11:28and then everything's going to be bad because
- 11:30then you stop with that fiber diet and everything
- 11:32goes back to the way it was before. Can you tell
- 11:33us specifically how changing your gut microbiome
- 11:36would actually affect the bones? You know, how
- 11:38do you build more bone? How do you build healthier
- 11:40bone by changing? What do the bacteria do? So
- 11:44there are two mechanisms that I've been focused
- 11:47on so far. One, I haven't done this, but the
- 11:52gut microbes will then influence the immune system
- 11:54in the body. And so these microbes at the lining
- 11:58of the gut, they're in contact with host immune
- 12:00cells. And then those immune cells will either
- 12:03release cytokines or they can also migrate to
- 12:07the bone where they can influence bone remodeling
- 12:10and several other groups have shown this. The
- 12:13mechanism we're interested in are the molecules
- 12:17that are released by gut microbes that end up
- 12:19getting into the bloodstream. So I didn't know
- 12:22this before I started, but every day there are
- 12:24microbial molecules floating around in our bloodstream.
- 12:27Not so many live bacteria, but there's little
- 12:29bits and pieces of dead bacteria or these metabolites.
- 12:34And many of these metabolites can have effects
- 12:37on the human body. The most studied are the short
- 12:39-chain fatty acids, which is a class of molecule.
- 12:43Butyrate is one of the most famous of them, and
- 12:46that's considered a beneficial molecule. And
- 12:49so when we talk about manipulating the microbiome,
- 12:51we often think about manipulations that will
- 12:53increase the production of short -chain fatty
- 12:56acids in the gut because then those short -chain
- 12:59fatty acids are good at the gut lining. They
- 13:01also get into the bloodstream and can have beneficial
- 13:03effects throughout the body. Okay. And there
- 13:06was a second mechanism you were going to tell
- 13:08me about? The second mechanism metabolites. So
- 13:10immune regulation and metabolites. Well, that's
- 13:13very clear there. Yeah. Thank you very much.
- 13:16That was beautifully explained. I think our listeners
- 13:17are really going to enjoy it and listeners you
- 13:19heard it here first. Transpoosian. Thank you
- 13:24very much for joining us Chris. Thank you so
- 13:25much for having me. That's great. Thank you.
- 13:36Thanks. Listeners, we're delighted to introduce
- 13:38our next guest, Marie Eva Pickering, a consultant
- 13:41in rheumatology from the University Hospital
- 13:44Clermont -Ferron. Welcome to the show. Thanks
- 13:46for joining us. Thank you very much. I'm very
- 13:48happy to be with you today. Are you enjoying
- 13:49your time in Boston? Yes, I arrived yesterday
- 13:52actually. It's really a beautiful city and I'm
- 13:54very happy to be here. It is a really nice city
- 13:57and, listeners, you've got fantastic weather
- 13:58here. It's kind of a beautiful autumn day. Yes,
- 14:01it is, it is. And you work as a rheumatologist
- 14:04in France, but we're particularly interested
- 14:06to hear about work you've done in bone dysplasia.
- 14:09Yes. So tell us a little bit about what you've
- 14:11been doing and what you're talking about here.
- 14:13Yes, sure. So, fibrosis dysplasia is quite a
- 14:16rare disease, a rare bone disease, but it affects
- 14:19people from childhood to adult people. and it
- 14:23really has an important burden on life and quality
- 14:27of life. One of the main effects of this pathology
- 14:30is the pain and it's very interesting to see
- 14:33that finally the pain differs in people and it's
- 14:37not because you've got many bones that are affected
- 14:39that you have more pain and that's why research
- 14:43now is really focused on trying to discover and
- 14:47understand all the pathways and the dynamics
- 14:50of pain mechanisms in this pathology. So in Clermont
- 14:56-Ferrand we started a study on people with FD
- 15:00and the objective was really to try to phenotype
- 15:04pain in this population. So we tried to understand
- 15:09the pain mechanisms and most of all one of the
- 15:14important things is what we call the descending
- 15:17pathways and the way that people manage to cope
- 15:20with pain throughout their lives. What we found
- 15:24is that finally while people with FD have what
- 15:29we call a mixed pain that is both nociceptive
- 15:33pain, which is the most typical pain that you
- 15:35find in bone diseases. It's also the type of
- 15:38pain that you find, for example, when you got
- 15:41a fracture or something like that. But they also
- 15:43have two other types of pain, neuropathic pain,
- 15:47which is currently under -diagnosed and therefore
- 15:50under -treated, and also what we call nociplastic
- 15:53pain, which is a very specific type of pain characterized
- 15:58by central sensibilisation. That means that under
- 16:04the years with this burden of the pathology,
- 16:07people will finally have pathways that will be
- 16:12a bit, well, abnormally regulated. And they have
- 16:18what we call central sensibilisation, which is
- 16:22really something quite new. So we'll try to...
- 16:24export all these these findings to a bigger population
- 16:27and we'll start a new study in France in all
- 16:31the centers of FD in France to try to understand
- 16:34that a bit better. So these different types of
- 16:37pain then so there's three different types of
- 16:39pain people with this fibrous dysplasia have
- 16:42and this it's a condition of bone that the bone
- 16:45formation is as abnormal and the bone becomes
- 16:48sort of deformed isn't that right? Yes in FD
- 16:50well you've got the bone features that are the
- 16:53most common things because it's what often people
- 16:56feel at the beginning but there are also lots
- 16:59of other things including endocrine pathologies
- 17:03for example or skin pathologies but the main
- 17:06thing is the bone and we're really thinking that
- 17:07finally the bone is the main regulator in the
- 17:10pain of these patients. A third type of pain
- 17:13you were talking about does that mean that if
- 17:14we've somehow fixed the bone or made the bone
- 17:18better that looked a different shape that wouldn't
- 17:20necessarily make the pain go away? the way of
- 17:24thinking about this? Yeah well it's quite a very
- 17:26interesting question because finally what we
- 17:29hope is that by identifying these different subtypes
- 17:34of pain we will not only treat pain like we do
- 17:38usually with NSAIDs or bone targeted therapies
- 17:41but also play on all another world of pain as
- 17:47well the mental health and all that the quality
- 17:50of life and also on the neuropathic pain analgesics,
- 17:55you know specific pain treatments and that's
- 17:58really something to do. And why is this work
- 18:00important? What kind of effect does the pain
- 18:03have on people's lives? Well the pain in FD and
- 18:08also in quite a lot of bone pathologies but in
- 18:10people with FD is really one of the most important
- 18:14things that give the burden of the pathology.
- 18:17because people stop working because of pain and
- 18:20also it affects their their their living know
- 18:22their quality of lives and Well, if we just diagnose
- 18:27it a bit better probably they would live better
- 18:29with it, too And how do you recruit people into
- 18:32your studies? Do you have patient involvement
- 18:34groups? Do you work with your patients? Yes,
- 18:37well as it's a rare disease What's quite nice
- 18:41is that there is a bit like here, the Allianz.
- 18:45There is a centre in France. It's regrouped.
- 18:49In fact, people, when they are diagnosed, they
- 18:51are automatically registrated in these big centres.
- 18:56So there are main centres in Paris or Lyon and
- 19:00also other centres of competence. There are,
- 19:03well, on all of France, in fact. Well, yeah,
- 19:08we've got all the lists of the patients that
- 19:10are treated and followed up in our lab. Do you
- 19:13think doctors are good at dealing with pain or
- 19:16do doctors like you and me prefer looking at
- 19:18blood test results and x -rays and things that
- 19:21we can quantify easily, but once the patient
- 19:24talks about pain, well then that makes us feel
- 19:26more uncomfortable, is that true? Completely,
- 19:28yeah, yeah, completely. often we feel a bit,
- 19:31we don't manage to relieve that pain and it's
- 19:35really difficult. Yeah, we feel a bit useless.
- 19:36Yeah, completely. I didn't manage to say that.
- 19:37Yeah, no, no, I think that's right. When you
- 19:39were saying at the start you're phenotyping the
- 19:41pain, what you mean is, because I realize not
- 19:43all our listeners will know what that means,
- 19:45so you're just dividing it up and you're actually
- 19:47saying to people, well, how does this pain affect
- 19:49you? Exactly. And try to actually categorize
- 19:51pain into different sorts of pain, so that because
- 19:54the way our doctors' minds work, we like to categorize
- 19:56things and it actually helps us then hopefully.
- 19:59to help the patient better? Yes, and there are
- 20:01some specific questioners in function of what
- 20:04type of pain it is. When I talked about non -susceptive
- 20:07pain, it's more like the pain you have when you
- 20:10have a fracture, for example, where you fall
- 20:13down. The neuropathic pain is more like when
- 20:18you feel as if you were burned or very painful.
- 20:22cold sensations or things like that. And the
- 20:25nociplastic pain is really something very difficult
- 20:27because it's something that finally no one sees.
- 20:31It's a sort of central pain in the brain. So
- 20:33the first one is if you... bang your finger with
- 20:35a hammer, your finger's sore. The second one
- 20:37is that neuropathic deep burning pain. And then
- 20:40the third one is this sort of central pain, which
- 20:42is so hard for us to deal with and for patients
- 20:45to deal with. And probably participates grandly
- 20:49in the chronicizing pain in these patients. And
- 20:51even though you're just looking at this very
- 20:53rare bone disease called fibrous dysplasia, presumably
- 20:56this sort of phenotyping pain is applicable to
- 20:59all sorts of pain, I imagine. quite something
- 21:03that is well known now in other diseases, more
- 21:06in inflammatory diseases for example. But yes,
- 21:09it's something that you can probably do in quite
- 21:13a lot of pathologies including bone. So relevant
- 21:17to lots of bone research then? Yes, totally.
- 21:20And clinical care? Yes, of course. Yes, because
- 21:22of course if we manage to diagnose these different
- 21:26types of pains, we'll probably help people to
- 21:30live better with it now. Why does bone pain have
- 21:33so many manifestations? Why is there such a wide
- 21:36variety of pain types associated with bone? That's
- 21:40a very difficult question because actually we
- 21:42didn't at the beginning we didn't think that
- 21:45there were so many different types of pain related
- 21:48to bone pain and usually what we do is just consider
- 21:52the non -susceptive part of it because it's what
- 21:55we know how to heal finally you know but well
- 22:00Probably bone has it's an endocrine organ. So
- 22:03it's got lots of impacts on many many structures
- 22:07and Pain is part of it Yeah, it's much more connected
- 22:12to the neurological system than we think isn't
- 22:15it? That's interesting Lovely. Thank you very
- 22:18much for talking to us today. It's been a pleasure.
- 22:19Thank you. Thank you Listeners, we're really
- 22:28delighted to bring you our first Early Career
- 22:30Researcher for ASBMR 2026. We have PhD student
- 22:35Melissa Chuevas from CU Anschutz in Colorado.
- 22:39Welcome to the show. Thank you. And thank you
- 22:41for your help in just sorting out our podcast
- 22:43as well. Yes, of course. My pleasure. So we saw
- 22:47your poster yesterday, which was really good.
- 22:50Could you tell us a little bit about the research
- 22:51that you've been presenting here at ASBMR? Yes,
- 22:54yes. So I study adolescent idiopathic scoliosis.
- 22:59It is a spinal deformity that happens in children,
- 23:05particularly when they're in the growth spurt
- 23:07age. And so basically what happens is they're
- 23:10born, they look fine. their back is straight,
- 23:13their back is fine. And then during the growth
- 23:15spurt, it starts curving and rotating. We don't
- 23:19know why that happens because they're otherwise
- 23:21healthy, no other problems with them. And sometimes
- 23:24it continues on to affect a lot of internal organs
- 23:28down the road. Once that curve starts, it doesn't
- 23:34reverse. So they're affected potentially for
- 23:37life. We are trying to figure out who progresses
- 23:41to get worse curves and who doesn't because it
- 23:46affects the treatment plan a lot and right now
- 23:48that big unknown of who is going to progress
- 23:51or not is really the big question for a clinic.
- 23:54And it often comes on in sort of late childhood
- 23:56or teenage years? Yeah, yeah, usually like whenever
- 23:58the growth spurt starts to like we start seeing
- 24:01people in clinic like at like 11. 12 something
- 24:05like that and so if they have like a 40 degree
- 24:08curve by cob angle then usually like they start
- 24:10talking about surgical correction and then before
- 24:14that when they're milder like they would talk
- 24:17to brace bracing therapy and the bracing therapy
- 24:21is like up to 20 hours so if you're wearing this
- 24:24pretty constraining brace so like hate to subject
- 24:28people to that if not necessary but sometimes
- 24:31it fails and so there is like all of these questions
- 24:33about the molecular biology on curve. At the
- 24:38minute it's hard to predict because the patient
- 24:40turns up they're very worried parents with them
- 24:42often they're sometimes seeing a surgeon and
- 24:45and it's hard to say who needs treatment who
- 24:47doesn't need treatment what's the best treatment
- 24:49for them and often delaying treatment until growth
- 24:52has has finished. Exactly. So what specifically
- 24:54were you looking at then that helps patients
- 24:57and their parents and doctors understand how
- 25:02to treat people better? What were you looking
- 25:03at? Yeah, so basically we think that there is
- 25:07a familial component to this, like there's some
- 25:10genetics happening. We haven't been able to find
- 25:13a clear definitive pattern. Not one single gene
- 25:18we've discovered yet. exome sequencing and so
- 25:24that's like sequencing of the DNA region that
- 25:26makes proteins. We did that in families that's
- 25:31multi -generational and some of that data had
- 25:33pointed to potentially cell signaling problems
- 25:37in these people and so what I presented at ASBMR
- 25:41today is we specifically looked at one protein
- 25:44called Kif7 which is responsible for this organ
- 25:49cilia, which is essentially just the antenna
- 25:51of the cell and like it's responsible for the
- 25:55regulation of how long that antenna is. We found
- 26:00three different mutations in these idiopathic
- 26:06scoliosis cases and so I modeled that in a cell
- 26:10line and found some interesting stuff like there's
- 26:14increased inflammation. with the mutations and
- 26:20then also like if I take out that protein in
- 26:22the cell it's worse and so but but in these all
- 26:26these mutations it's not it's not like a complete
- 26:29loss of function which I thought was interesting
- 26:31so that was that was what I presented. So you
- 26:34looked at families where they seem to run on
- 26:37families a bit and you looked in the area of
- 26:39the of the genes that were responsible producing
- 26:43proteins for this condition and there's one particular
- 26:46gene called, is it KIF? You said KIF, so you
- 26:49want to look this up, it's KIF7. Yes. And you
- 26:52find then abnormality in that particular... Yes.
- 26:57And you mentioned several different types of
- 26:59abnormality. Yeah, so what happens with when
- 27:03I model this in cell, like the cilia, which is
- 27:06that antenna on the cell, that KIF7 regulates,
- 27:11it's longer. in the cells that have the mutation
- 27:17of the people. Yeah, okay, so the gene abnormality
- 27:20causes a different size of a thing called a cilia,
- 27:23which is in the surface of a cell, which influences
- 27:27how bones grow? Yeah, we think so. It is present
- 27:31in every cell, but we think maybe in scoliosis
- 27:34it affects signaling. And were you able to link
- 27:37a difference in the gene with how it appeared
- 27:40and how it affected the patient could you predict
- 27:43from which abnormality they had in the gene how
- 27:46it affected them or perhaps how we should intervene
- 27:49or when they should have their surgery? Yeah
- 27:51so interestingly like in all of these scoliosis
- 27:55patients like the curves size is not the same
- 27:57the curve pattern is not always the same and
- 28:00like just even in this one specific gene like
- 28:03three different mutations, like they don't, even
- 28:05though it's around the same area, like they don't
- 28:08behave the same way. So I think this is like
- 28:11clues to the puzzle. So longer term then, how
- 28:15do you think it might benefit the scoliosis patients?
- 28:19Would you, for example, think about looking at
- 28:21the genes? Would you think about looking at the
- 28:22proteins the genes produce? Or would you try
- 28:25and look at the cilia and see how long they are?
- 28:28Yeah, so I think in this work, we zoned in on
- 28:31one pathway and one gene. But I think there's
- 28:34potentially many, many components to scoliosis.
- 28:38And so we're thinking that we would go back to
- 28:42the exome sequencing data, because there's still
- 28:44quite a bit there. And look at just how it's
- 28:50associated with the family data. We have also
- 28:53a... linkage analysis data that will hopefully
- 28:57like narrow down spaces in the genome that is
- 29:02inherited like segregating with the phenotype
- 29:05and see if there's any more additional clues
- 29:09there just like a little bit more broad broadly
- 29:13and also we have a biobank where we collect surgical
- 29:19discard tissue from patients who have undergone
- 29:21the corrective surgery, the posterior spinal
- 29:24fusion. And so we could also do transcriptomic
- 29:29profiling of their facet joints that we get.
- 29:33And so I think that is where we're trying to
- 29:36find it. So there's lots of potential things
- 29:37to do now, because the best sort of research
- 29:39is the one that asks more questions than it answers,
- 29:42isn't it? Yeah, it's true. That was lovely. Thank
- 29:45you for talking to us today and good luck in
- 29:47all your future research. All right, thank you.
- 29:49Thanks very much, Melissa. It's great. We hope
- 29:52you enjoyed this listeners episode. We've got
- 29:54a lot more interviews to come, so tune in for
- 29:57the next part. We'll get it to you as soon as
- 29:59we can. We'll see you then.