Joy Richman

DMD, MDentSci, PhD, FRCDC

Investigator and Pediatric Dentist, BC Children's Hospital
Director, Graduate Program in Pediatric Dentistry

I am a Pediatric Dentist based at BCCH department of dentistry. I am also the director of the graduate program in Pediatric Dentistry which trains specialists. My research is in the area of developmental malformations that affect the face and teeth. I am particularly focused on the causes of cleft lip with or without cleft palate which affects 1 in 700 babies. Facial clefting is one of the most common birth defects and in the majority of cases, the clefts occur in otherwise healthy babies. Therefore, the causes are complex and difficult to attribute to genetic mutations. I study the environmental effects that predispose an individual to developing a cleft. I primarily use the chicken embryo for this research because I can test the role of specific genes and growth factors in facial development directly in the egg. In addition, I do clinical research on human fetal development and changes to delivery of dental services during the Covid-19 pandemic.

Academic Affiliations

  • Professor, Division of Pediatric Dentistry, Department of Oral Health Sciences, Faculty of Dentistry, University of British Columbia
  • Research Theme: Evidence to Innovation
  • Research Group(s): Clinical Practice, Outcomes and Innovation; Rare Diseases

Contact Information

Location

Room 3.452, 2350 Health Sciences Mall, Vancouver, British Columbia, Canada, V6T 1Z3

The abnormal C-terminus in DVL1 impacts Robinow Syndrome phenotypes

Shruti S. Tophkhane and Gamze Akarsu and Sarah J. Gignac and Katherine Fu and Stephanie Xie and Esther M. Verheyen and Joy M. Richman

DOI: 10.64898/2026.02.14.705933

02 / 2026

Robinow syndrome DVL1 variants disrupt morphogenesis and appendage formation in a Drosophila disease model

Developmental Dynamics

Gamze Akarsu and Katja R. MacCharles and Kenneth Kin Lam Wong and Joy M. Richman and Esther M. Verheyen

DOI: 10.1002/dvdy.70056

07 / 2025

Molecular Profiling of Odontoclasts during Physiological Tooth Replacement

Journal of Dental Research

J.I. Henriquez and S. Flibotte and K. Fu and J.M. Richman

DOI: 10.1177/00220345241304756

05 / 2025

Resilience of the replacing dentition in adult reptiles

Developmental Biology

Joaquin I. Henriquez and Joy M. Richman

DOI: 10.1016/j.ydbio.2024.07.013

12 / 2024

Colin Dawes In Memoriam: JDR Editor Emeritus and Pioneer in Salivary Research

Journal of Dental Research

J.M. Richman and W.L. Siqueira

DOI: 10.1177/00220345241280026

11 / 2024

Craniofacial studies in chicken embryos confirm the pathogenicity of human FZD2 variants associated with Robinow syndrome

Disease Models & Mechanisms

Shruti S. Tophkhane and Katherine Fu and Esther M. Verheyen and Joy M. Richman

DOI: 10.1242/dmm.050584

06 / 2024

DVL1variants and C-terminal deletions have differential effects on craniofacial development and WNT signaling

Shruti S. Tophkhane and Sarah J. Gignac and Katherine Fu and Esther M. Verheyen and Joy M. Richman

DOI: 10.1101/2024.02.28.582602

02 / 2024

Craniofacial studies in chicken embryos confirm the pathogenicity of Frizzled2 variants associated with Robinow syndrome

Shruti S. Tophkhane and Katherine Fu and Esther M. Verheyen and Joy M. Richman

DOI: 10.1101/2023.11.07.565956

11 / 2023

Mechanistic studies in Drosophila and chicken give new insights into functions of DVL1 in dominant Robinow syndrome

Disease Models & Mechanisms

Sarah J. Gignac and Katja R. MacCharles and Katherine Fu and Kywana Bonaparte and Gamze Akarsu and Thalia W. Barrett and Esther M. Verheyen and Joy M. Richman

DOI: 10.1242/dmm.049844

04 / 2023

Transcriptomic profiling of the adult reptilian dentition sheds light on the genes regulating indefinite tooth replacement

Joaquin Ignacio Henriquez and Stephane Flibotte and Katherine Fu and Edward Zirui-Wang Li and Joy M. Richman

DOI: 10.1101/2022.12.23.521841

12 / 2022

Evolutionarily conserved waves of tooth replacement in the gecko are dependent on local signaling

Kirstin S. Brink and Eric Cytrynbaum and Theresa M. Grieco and Joaquin I. Henriquez and Anna Zhitnitsky and Joy M. Richman

DOI: 10.1101/2022.11.17.513312

11 / 2022

Symmetry and fluctuation of cell movements in neural crest-derived facial mesenchyme

Development

Adrian Danescu and Elisabeth G. Rens and Jaspreet Rehki and Johnathan Woo and Takashi Akazawa and Katherine Fu and Leah Edelstein-Keshet and Joy M. Richman

DOI: 10.1242/dev.193755

05 / 2021

Getting out of an egg: Merging of tooth germs to create an egg tooth in the snake

Developmental Dynamics

Juan M. Fons and Marcia Gaete and Oldrich Zahradnicek and Marie Landova and Hussein Bandali and Eraqi R. Khannoon and Joy M. Richman and Marcela Buchtova and Abigail S. Tucker

DOI: 10.1002/dvdy.120

02 / 2020

JDR Historical Highlights #10

Journal of Dental Research

Nick Jakubovics and Joy Richman

DOI: 10.1177/0022034519864885

09 / 2019

Robinow syndrome skeletal phenotypes caused by the WNT5AC83S variant are due to dominant interference with chondrogenesis

Human Molecular Genetics

Sarah J Gignac and Sara Hosseini-Farahabadi and Takashi Akazawa and Nathan J Schuck and Katherine Fu and Joy M Richman

DOI: 10.1093/hmg/ddz071

07 / 2019

Shedding new light on the mysteries of tooth eruption

Proceedings of the National Academy of Sciences

Joy M. Richman

DOI: 10.1073/pnas.1819412116

01 / 2019

Coordination of bilateral tooth replacement in the juvenile gecko is continuous with in ovo patterning

Evolution & Development

Theresa M. Grieco and Joy M. Richman

DOI: 10.1111/ede.12247

03 / 2018

Craniofacial defects and cleft lip and palate

Wiley

DOI: 10.1002/9780470015902.a0020915.pub2

04 / 2017

Methyltransferase G9A Regulates Osteogenesis via Twist Gene Repression

Journal of Dental Research

Higashihori, N. and Lehnertz, B. and Sampaio, A. and Underhill, T. M. and Rossi, F. and Richman, J. M.

DOI: 10.1177/0022034517716438

Design of lipid nanoparticles for in vitro and in vivo delivery of plasmid DNA

Nanomedicine-Nanotechnology Biology and Medicine

Kulkarni, Jayesh A. and Myhre, Johnathan Layne and Chen, Sam and Tam, Yuen Yi C. and Danescu, Adrian and Richman, Joy M. and Cullis, Pieter R.

DOI: 10.1016/j.nano.2016.12.014

Abnormal WNT5A Signaling Causes Mandibular Hypoplasia in Robinow Syndrome

Journal of Dental Research

Hosseini-Farahabadi, S. and Gignac, S. J. and Danescu, A. and Fu, K. and Richman, J. M.

DOI: 10.1177/0022034517716916

Face Forward: Gene Variants, Pathways, and Therapies for Craniofacial Anomalies

Journal of Dental Research

Richman, J. M. and Schutte, B. C.

DOI: 10.1177/0022034517728076

BMP Signaling Regulates the Fate of Chondro-osteoprogenitor Cells in Facial Mesenchyme in a Stage-Specific Manner

Developmental Dynamics

Cela, Petra and Buchtova, Marcela and Vesela, Iva and Fu, Kathy and Bogardi, Jean-Philippe and Song, Yiping and Barlow, Amanda and Buxton, Paul and Medalova, Jirina and Francis-West, Philippa and Richman, Joy M.

DOI: 10.1002/dvdy.24422

Pannexin 3 is Required for Late Stage Bone Growth but not for Initiation of Ossification in Avian Embryos

Developmental Dynamics

Bond, Stephen R. and Abramyan, John and Fu, Kathy and Naus, Christian C. and Richman, Joy M.

DOI: 10.1002/dvdy.24425

MORN5 Expression during Craniofacial Development and Its Interaction with the BMP and TGF beta Pathways

Frontiers in Physiology

Cela, Petra and Hampl, Marek and Fu, Katherine K. and Kunova Bosakova, Michaela and Krejci, Pavel and Richman, Joy M. and Buchtova, Marcela

DOI: 10.3389/fphys.2016.00378

Periodicity and dynamics of tooth replacement from a longitudinal study of leopard geckos

Integrative and Comparative Biology

Grieco, T. M. and Wong, A. C. and Richman, J. M.

Recent Insights Into the Morphological Diversity in the Amniote Primary and Secondary Palates

Developmental Dynamics

Abramyan, John and Richman, Joy Marion

DOI: 10.1002/dvdy.24338

Analysis of human soft palate morphogenesis supports regional regulation of palatal fusion

Journal of Anatomy

Danescu, Adrian and Mattson, Melanie and Dool, Carly and Diewert, Virginia M. and Richman, Joy M.

DOI: 10.1111/joa.12365

Diversity in primary palate ontogeny of amniotes revealed with 3D imaging

Journal of Anatomy

Abramyan, John and Thivichon-Prince, Beatrice and Richman, Joy Marion

DOI: 10.1111/joa.12291

Identification and functional analysis of novel facial patterning genes in the duplicated beak chicken embryo

Developmental Biology

Nimmagadda, Suresh and Buchtova, Marcela and Fu, Katherine and Geetha-Loganathan, Poongodi and Hosseini-Farahabadi, Sara and Trachtenberg, Alexander J. and Kuo, Winston Patrick and Vesela, Iva and Richman, Joy M.

DOI: 10.1016/j.ydbio.2015.09.007

Avian Facial Morphogenesis Is Regulated by c-Jun N-terminal Kinase/Planar Cell Polarity (JNK/PCP) Wingless-related (WNT) Signaling

Journal of Biological Chemistry

Geetha-Loganathan, Poongodi and Nimmagadda, Suresh and Fu, Katherine and Richman, Joy M.

DOI: 10.1074/jbc.M113.522003

Comparative studies on the ontogeny of the primary palate and nasal cavities in birds and mammals

Integrative and Comparative Biology

Abramyan, J. and Cheng, J. and Richman, J. M.

Divergent Palate Morphology in Turtles and Birds Correlates With Differences in Proliferation and BMP2 Expression During Embryonic Development

Journal of Experimental Zoology Part B-Molecular and Developmental Evolution

Abramyan, John and Leung, Kelvin Jia-Mien and Richman, Joy Marion

DOI: 10.1002/jez.b.22547

Expression, function and regulation of Evi-1 during embryonic avian development

Gene Expression Patterns

Cela, P. and Balkova, S. Moravcova and Bryjova, A. and Horakova, D. and Misek, I. and Richman, J. M. and Buchtova, M.

DOI: 10.1016/j.gep.2013.06.002

Biology of tooth replacement in amniotes

International Journal of Oral Science

Whitlock, John A. and Richman, Joy M.

DOI: 10.1038/ijos.2013.36

Dual functions for WNT5A during cartilage development and in disease

Matrix Biology

Hosseini-Farahabadi, Sara and Geetha-Loganathan, Poongodi and Fu, Katherine and Nimmagadda, Suresh and Yang, Hoe Joong and Richman, Joy M.

DOI: 10.1016/j.matbio.2013.02.005

Sox2 marks epithelial competence to generate teeth in mammals and reptiles

Development

Juuri, Emma and Jussila, Maria and Seidel, Kerstin and Holmes, Scott and Wu, Ping and Richman, Joy and Heikinheimo, Kristiina and Chuong, Cheng-Ming and Arnold, Katrin and Hochedlinger, Konrad and Klein, Ophir and Michon, Frederic and Thesleff, Irma

DOI: 10.1242/dev.089599

Craniofacial ontogeny in turtles: the role of bone morphogenetic protein in the loss of palatal shelves

Integrative and Comparative Biology

Abramyan, J. and Leung, K. J. and Merchant-Larios, H. and Richman, J. M.

Reptilian Tooth Regeneration

Stem Cells in Craniofacial Development and Regeneration

Richman, J.M. and Whitlock, J.A. and Abramyan, J.

DOI: 10.1002/9781118498026.ch7

The western painted turtle genome, a model for the evolution of extreme physiological adaptations in a slowly evolving lineage

Genome Biology

Shaffer, H. Bradley and Minx, Patrick and Warren, Daniel E. and Shedlock, Andrew M. and Thomson, Robert C. and Valenzuela, Nicole and Abramyan, John and Amemiya, Chris T. and Badenhorst, Daleen and Biggar, Kyle K. and Borchert, Glen M. and Botka, Christopher W. and Bowden, Rachel M. and Braun, Edward L. and Bronikowski, Anne M. and Bruneau, Benoit G. and Buck, Leslie T. and Capel, Blanche and Castoe, Todd A. and Czerwinski, Mike and Delehaunty, Kim D. and Edwards, Scott V. and Fronick, Catrina C. and Fujita, Matthew K. and Fulton, Lucinda and Graves, Tina A. and Green, Richard E. and Haerty, Wilfried and Hariharan, Ramkumar and Hernandez, Omar and Hillier, LaDeana W. and Holloway, Alisha K. and Janes, Daniel and Janzen, Fredric J. and Kandoth, Cyriac and Kong, Lesheng and de Koning, A. P. Jason and Li, Yang and Literman, Robert and McGaugh, Suzanne E. and Mork, Lindsey and O'Laughlin, Michelle and Paitz, Ryan T. and Pollock, David D. and Ponting, Chris P. and Radhakrishnan, Srihari and Raney, Brian J. and Richman, Joy M. and St John, John and Schwartz, Tonia and Sethuraman, Arun and Spinks, Phillip Q. and Storey, Kenneth B. and Thane, Nay and Vinar, Tomas and Zimmerman, Laura M. and Warren, Wesley C. and Mardis, Elaine R. and Wilson, Richard K.

DOI: 10.1186/gb-2013-14-3-r28

Unicuspid and Bicuspid Tooth Crown Formation in Squamates

Journal of Experimental Zoology Part B-Molecular and Developmental Evolution

Handrigan, Gregory R. and Richman, Joy M.

DOI: 10.1002/jezmde.21438

Development of High-Concentration Lipoplexes for In Vivo Gene Function Studies in Vertebrate Embryos

Developmental Dynamics

Geetha-Loganathan, Poongodi and Nimmagadda, Suresh and Hafez, Ismail and Fu, Katherine and Cullis, Pieter R. and Richman, Joy M.

DOI: 10.1002/dvdy.22708

Spatiotemporal Localization of Periostin and Its Potential Role in Epithelial-Mesenchymal Transition during Palatal Fusion

Cells Tissues Organs

Kitase, Yukiko and Yamashiro, Keisuke and Fu, Katherine and Richman, Joy M. and Shuler, Charles F.

DOI: 10.1159/000320178

Reptilian Tooth Development

Genesis

Richman, Joy M. and Handrigan, Gregory R.

DOI: 10.1002/dvg.20721

Tmem26 Is Dynamically Expressed during Palate and Limb Development but Is Not Required for Embryonic Survival

Plos One

Town, Liam and McGlinn, Edwina and Davidson, Tara-Lynne and Browne, Catherine M. and Chawengsaksophak, Kallayanee and Koopman, Peter and Richman, Joy M. and Wicking, Carol

DOI: 10.1371/journal.pone.0025228

A network of Wnt, hedgehog and BMP signaling pathways regulates tooth replacement in snakes

Developmental Biology

Handrigan, Gregory R. and Richman, Joy M.

DOI: 10.1016/j.ydbio.2010.09.003

Whole Genome Microarray Analysis of Chicken Embryo Facial Prominences

Developmental Dynamics

Buchtova, Marcela and Kuo, Winston Patrick and Nimmagadda, Suresh and Benson, Shari L. and Geetha-Loganathan, Poongodi and Logan, Cairine and Au-Yeung, Timothy and Chiang, Eric and Fu, Katherine and Richman, Joy M.

DOI: 10.1002/dvdy.22135

The Function and Regulation of TBX22 in Avian Frontonasal Morphogenesis

Developmental Dynamics

Higashihori, Norihisa and Buchtova, Marcela and Richman, Joy M.

DOI: 10.1002/dvdy.22182

Synaptic Localization of Neuroligin 2 in the Rodent Retina: Comparative Study With the Dystroglycan-Containing Complex

Journal of Neuroscience Research

Lui, Leona and Levinson, Joshua N. and Noel, Geoffroy and Handrigan, Gregory R. and Richman, Joy M. and El-Husseini, Alaa and Moukhles, Hakima

DOI: 10.1002/jnr.22258

Identification of putative dental epithelial stem cells in a lizard with life-long tooth replacement

Development

Handrigan, Gregory R. and Leung, Kelvin J. and Richman, Joy M.

DOI: 10.1242/dev.052415

Autocrine and paracrine Shh signaling are necessary for tooth morphogenesis, but not tooth replacement in snakes and lizards (Squamata)

Developmental Biology

Handrigan, Gregory R. and Richman, Joy M.

DOI: 10.1016/j.ydbio.2009.10.020

Novel skeletogenic patterning roles for the olfactory pit

Development

Szabo-Rogers, Heather L. and Geetha-Loganathan, Poongodi and Whiting, Cheryl J. and Nimmagadda, Suresh and Fu, Katherine and Richman, Joy M.

DOI: 10.1242/dev.023978

How snakes and lizards replace their teeth: Molecular and embryological scrutiny of tooth cycling in squamates

Integrative and Comparative Biology

Handrigan, G. R. and Buchtova, M. and Leung, K. J. and Richman, J. M.

Expression of WNT Signalling Pathway Genes During Chicken Craniofacial Development

Developmental Dynamics

Geetha-Loganathan, Poongodi and Nimmagadda, Suresh and Antoni, Laurent and Fu, Katherine and Whiting, Cheryl J. and Francis-West, Philippa and Richman, Joy M.

DOI: 10.1002/dvdy.21934

The Metalloendopeptidase Gene Pitrm1 Is Regulated by Hedgehog Signaling in the Developing Mouse Limb and Is Expressed in Muscle Progenitors

Developmental Dynamics

Town, Liam and McGlinn, Edwina and Fiorenza, Salvatore and Metzis, Vicki and Butterfield, Natalie C. and Richman, Joy M. and Wicking, Carol

DOI: 10.1002/dvdy.22126

FGF signals from the nasal pit are necessary for normal facial morphogenesis

Developmental Biology

Szabo-Rogers, Heather L. and Geetha-Loganathan, Poongodi and Nimmagadda, Suresh and Fu, Kathy K. and Richman, Joy M.

DOI: 10.1016/j.ydbio.2008.03.027

Expression of the NET family member Zfp503 is regulated by hedgehog and BMP signaling in the limb

Developmental Dynamics

McGlinn, Edwina and Richman, Joy M. and Metzis, Vicki and Town, Liam and Butterfield, Natalie C. and Wainwright, Brandon J. and Wicking, Carol

DOI: 10.1002/dvdy.21508

Initiation and patterning of the snake dentition are dependent on Sonic Hedgehog signaling

Developmental Biology

Buchtova, Marcela and Handrigan, Gregory R. and Tucker, Abigail S. and Lozanoff, Scott and Town, Liam and Fu, Katherine and Diewert, Virginia M. and Wicking, Carol and Richman, Joy M.

DOI: 10.1016/j.ydbio.2008.03.004

Expression and regulation of the decoy bone morphogenetic protein receptor BAMBI in the developing avian face

Developmental Dynamics

Higashihori, Norihisa and Song, Yiping and Richman, Joy M.

DOI: 10.1002/dvdy.21529

Embryonic development of Python sebae - II: Craniofacial microscopic anatomy, cell proliferation and apoptosis

Zoology

Buchtova, Marcela and Boughner, Julia C. and Fu, Katherine and Diewert, Virginia M. and Richman, Joy M.

DOI: 10.1016/j.zool.2007.01.006

Egg tooth development in the snake

European Cells and Materials

Bandali, H. and Buchtova, M. and Richman, J.M. and Tucker, A.S.

Gene discovery in craniofacial development and disease - cashing in your chips

Clinical Genetics

Handrigan, G. R. and Buchtova, M. and Richman, J. M.

DOI: 10.1111/j.1399-0004.2007.00761.x

Embryonic development of Python sebae - I: Staging criteria and macroscopic skeletal morphogenesis of the head and limbs

Zoology

Boughner, Julia C. and Buchtova, Marcela and Fu, Katherine and Diewert, Virginia and Hallgrimsson, Benedikt and Richman, Joy M.

DOI: 10.1016/j.zool.2007.01.005

Reptilian evo-devo: Replacement tooth formation in the bearded dragon Pogona vitticeps

Journal of Morphology

Handrigan, Gregory R. and Buchtova, Marcela and Diewert, Virginia and Richman, Joy M.

An endogenous retinoic acid gradient is used to set up rostrocaudal upper beak pattern

Journal of Morphology

Bucluova, Marcela and Song, Yiping and Richman, Joy

Evolutionary conservation and murine embryonic expression of the gene encoding the SERTA domain-containing protein CDCA4 (HEPP)

Gene

Bennetts, J. S. and Fowles, L. F. and Berkman, J. L. and van Bueren, K. L. and Richman, J. M. and Simpson, F. and Wicking, C.

DOI: 10.1016/j.gene.2006.01.027

Cell dissociation experiments reveal that positional information operates in the chicken frontonasal mass

Genesis

Kawakami, M. and Inoue, M. and Richman, J. M.

DOI: 10.1002/gene.20191

Comparative ontogeny and phylogeny of the upper jaw skeleton in amniotes

Developmental Dynamics

Richman, J. M. and Buchtova, M. and Boughner, J. C.

DOI: 10.1002/dvdy.20716

Retinoid signaling determines germ cell fate in mice

Science

Bowles, J. and Knight, D. and Smith, C. and Wilhelm, D. and Richman, J. and Mamiya, S. and Yashiro, K. and Chawengsaksophak, K. and Wilson, M. J. and Rossant, J. and Hamada, H. and Koopman, P.

DOI: 10.1126/science.1125691

Upper beak truncation in chicken embryos with the cleft primary palate mutation is due to an epithelial defect in the frontonasal mass

Developmental Dynamics

MacDonald, M.E. and Abbott, U.K. and Richman, J.M.

DOI: 10.1002/dvdy.20041

Control of retinoic acid synthesis and FGF expression in the nasal pit is required to pattern the craniofacial skeleton

Developmental Biology

Song, Y. and Hui, J.N. and Fu, K.K. and Richman, J.M.

DOI: 10.1016/j.ydbio.2004.08.035

A new origin for the maxillary jaw

Developmental Biology

Lee, S. H. and Bedard, O. and Buchtova, M. and Fu, K. and Richman, J. A.

DOI: 10.1016/j.ydbio.2004.08.045

About face: Signals and genes controlling jaw patterning and identity in vertebrates

BioEssays

Richman, J.M. and Lee, S.-H.

DOI: 10.1002/bies.10288

Endogenous bone morphogenetic proteins regulate outgrowth and epithelial survival during avian lip fusion

Development

Ashique, A.M. and Fu, K. and Richman, J.M.

Signalling via type IA and type IB bone morphogenetic protein receptors (BMPR) regulates intramembranous bone formation, chondrogenesis and feather formation in the chicken embryo

International Journal of Developmental Biology

Ashique, A.M. and Fu, K. and Richman, J.M.

Isolation and characterisation of the chick orthologue of the Opitz syndrome gene, Mid1, supports a conserved role in vertebrate development

International Journal of Developmental Biology

Richman, J.M. and Fu, K.K. and Cox, L.L. and Sibbons, J.P. and Cox, T.C.

Noggin and retinoic acid transform the identity of avian facial prominences

Nature

Lee, S.-H. and Fu, K.K. and Hui, J.N. and Richman, J.M.

DOI: 10.1038/414909a

Locally released retinoic acid repatterns the first branchial arch cartilages in vivo

Developmental Biology

Plant, M.R. and MacDonald, M.E. and Grad, L.I. and Ritchie, S.J. and Richman, J.M.

DOI: 10.1006/dbio.2000.9706

Expression of fibroblast growth factor receptors (FGFR1, FGFR2, FGFR3) in the developing head and face

Developmental Dynamics

Wilke, T.A. and Gubbels, S. and Schwartz, J. and Richman, J.M.

DOI: 10.1002/(SICI)1097-0177(199709)210:1u0026lt;41::AID-AJA5u0026gt;3.0.CO;2-1

Chicken transcription factor AP-2: Cloning, expression and its role in outgrowth of facial prominences and limb buds

Developmental Biology

Shen, H. and Wilke, T. and Ashique, A.M. and Narvey, M. and Zerucha, T. and Savino, E. and Williams, T. and Richman, J.M.

DOI: 10.1006/dbio.1997.8617

Epithelium is required for maintaining FGFR-2 expression levels in facial mesenchyme of the developing chick embryo

Developmental Dynamics

Matovinovic, E. and Richman, J.M.

Effect of fibroblast growth factors on outgrowth of facial mesenchyme

Developmental Biology

Richman, J.M. and Herbert, M. and Matovinovic, E. and Walin, J.

DOI: 10.1006/dbio.1997.8656

Craniofacial development: Knockout mice take one on the chin

Current Biology

Richman, J. and Mitchell, P.J.

Locally released retinoic acid leads to facial clefts in the chick embryo but does not alter the expression of receptors for fibroblast growth factor

Journal of Craniofacial Genetics and Developmental Biology

Richman, J.M. and Delgado, J.L.

Targeted disruption of the Huntington's disease gene results in embryonic lethality and behavioral and morphological changes in heterozygotes

Cell

Nasir, J. and Floresco, S.B. and O'Kusky, J.R. and Diewert, V.M. and Richman, J.M. and Zeisler, J. and Borowski, A. and Marth, J.D. and Phillips, A.G. and Hayden, M.R.

DOI: 10.1016/0092-8674(95)90542-1

Head Development: Craniofacial genetics makes headway

Current Biology

Richman, J.M.

DOI: 10.1016/S0960-9822(95)00068-6

The role of retinoids in normal and abnormal embryonic craniofacial morphogenesis

Critical Reviews in Oral Biology and Medicine

Richman, J.M.

Epithelial-mesenchymal interactions in the outgrowth of limb buds and facial primordia in chick embryos

Developmental Biology

Richman, J.M. and Tickle, C.

DOI: 10.1016/0012-1606(92)90069-S

Development of the spatial pattern of retinoic acid receptor- transcripts in embryonic chick facial primordia

Development

Rowe, A. and Richman, J.M. and Brickell, P.M.

Signals involved in patterning and morphogenesis of the embryonic face.

Progress in clinical and biological research

Richman, J.M. and Rowe, A. and Brickell, P.M.

Retinoic acid treatment alters the distribution of retinoic acid receptor- transcripts in the embryonic chick face

Development

Rowe, A. and Richman, J.M. and Brickell, P.M.

Differential growth of facial primordia in chick embryos: Responses of facial mesenchyme to basic fibroblast growth factor (bFGF) and serum in micromass culture

Development

Richman, J.M. and Crosby, Z.

Epithelia are interchangeable between facial primordia of chick embryos and morphogenesis is controlled by the mesenchyme

Developmental Biology

Richman, J.M. and Tickle, C.

DOI: 10.1016/0012-1606(89)90142-5

The fate of Meckel's cartilage chondrocytes in ocular culture

Developmental Biology

Richman, J.M. and Diewert, V.M.

DOI: 10.1016/0012-1606(88)90160-1

An immunofluorescence study of chondrogenesis in murine mandibular ectomesenchyme

Cell Differentiation

Richman, J.M. and Diewert, V.M.

DOI: 10.1016/0045-6039(87)90453-2

Tooth induction and temporal patterning in palatal epithelium of fetal mice

American Journal of Anatomy

Richman, J.M. and Kollar, E.J.

Current Projects

My lab is the only two in Canada and one of few in the world that focuses on the patterning mechanisms in embryonic facial development. During my career I have worked on all stages of facial patterning from neural crest cells, to facial prominence formation and finally the differentiation of the skull. My main accomplishments are to develop the chicken as a model for studying the molecular controls of cleft lip and for understanding how jaw identity is established. In addition to work with chicken, I have worked with mouse and reptilian embryos. My training as a pediatric dentist feeds directly into the reptilian tooth replacement studies since we are adapting certain dental procedures to the gecko. I am making unique contributions to the biology of tooth replacement that cannot be studied in the mouse which only has one set of teeth.

Here are the topics I am currently investigating:

1) Rare diseases affecting craniofacial and limb development
2) Measuring developmental instability in the face using live imaging
3) Exploring the stem cells and molecules required for life-long tooth replacement in geckos
4) 3D morphometrics of human craniofacial and dental development in the middle trimester
5) Assessing the value of virtual health visits for dental consultations

Grants

CIHR – “Discovery of novel WNT signaling mechanisms from the study of human genetic disease in two animal models”. 2019- 2024

NSERC – “Reptilian Tooth and Jaw Development”. 2016-2024

NIH – “Development of the leopard gecko as a model to study in vivo tooth replacement”. 2017-2021

Honours & Awards

Fellow of the Academy of Health Sciences 2020

Canadian Association for Dental Research National Dental Research Award 2020

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