Eiki Koyama, DDS, PhD

Huang BL, Davis S, Koyama E, Pacifici M, Mackem S. A pivotal Wnt antagonist role promoting digit joint specification by constraining Wnt activity , Nat Commun, 17: 2026,6835

Jiaqi Xiang1, Bryan Kwok1, Sobhan Ghaeini-Hesaroueiye1, Siyan Li1, Sara F. Tufa2, Douglas R. Keene2, , David E. Birk3, Nathaniel A. Dyment4, Robert L. Mauck4, Véronique M. Lefebrve5, Eiki Koyama5, Lin Han1, 1Drexel University, Philadelphia, PA; 2Shriners Hospital for Children, Portland, OR; 3University of South Florida, Tampa, FL;, 4University of Pennsylvania, Philadelphia, PA; 5The Children's Hospital of Philadelphia, Philadelphia, PA. Type XI Collagen is Essential for Epiphyseal Growth Plate Cartilage Formation and Cartilage-to-Bone Remodeling , ORS: Orthopaedic Research Society: 2026

Minwook Kim, Heejong Kim, Eiki Koyama, Nancy Pleshko, Mary M. Cowman Hyaluronan Synthesis and Degradation Entail Limb Synovial Joint Cavitation , ORS: Orthopaedic Research Society: 2026

Meghan E. Kupratis1, 2, Jiaqi Xiang3, Kevin G. Burt1, 2, Yuqi Zhang1, Bryan Kwok3, 4, Sara F. Tufa5, Douglas R. Keen5, Nathaniel A. Dyment1, Lin Han3, Eiki Koyama4, Robert L. Mauck1, 2, 1University of Pennsylvania, Philadelphia, PA, 2 CMC VA Medical Center, Philadelphia, PA, 3Drexel University, Philadelphia, PA, 4The Children’s Hospital of Philadelphia, Philadelphia, PA, 5Shriners Hospital for Children, Portland, OR Emergent Cell Subpopulations and Time-Evolving Biophysical Cues in the Developing Porcine Meniscus , ORS: Orthopaedic Research Society: 2026

Eiki Koyama, Cheri Saunders, Véronique Lefebvre, Christina Mundy and Maurizio Pacifici Appendicular and cranial base skeletal defects in Achondroplasia are ameliorated by treatment with a retinoid drug as revealed in a mouse model , ASBMR: 2026

Mundy C, Ramesh S, Catheline SE, Saunders C, Koyama E, Pacifici M. Progenitors from distinct perichondrium layers initiate tumor formation in hereditary multiple osteochondromas as revealed in a mouse model , Bone: 2026

Grey Hallstrom1, Talayah Johnson1, Destiny Miller1, Xi Jiang1, Joel D. Boerckel1, Eiki Koyama3, Lin Han2, Robert L. Mauck1, 4, Nathaniel A. Dyment1, 4, 1McKay Orthopaedic Research Laboratory, University of Pennsylvania, Philadelphia, PA., 2School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA., 3Children’s Hospital of Philadelphia, Philadelphia, PA., 4Translational Musculoskeletal Research Laboratory, CMC VA Medical Center, Philadelphia, PA. High-throughput spatial transcriptomics to map musculoskeletal lineages , ASBMR: 2026

Neil Patel1, Meghan E. Kupratis2, Karen L. Xu2, Thomas Li1, Eiki Koyama3, Nathaniel A. Dyment2, Robert L. Mauck2, Lin Han1, 1Drexel University, Philadelphia, PA; 2Univeristy of Pennsylvania, Philadelphia, PA; 3The Children’s Hospital of Philadelphia, Philadelphia, PA. Type V Collagen Governs Nascent Matrix Templating and Cell-Mediated Reorganization in Embryonic Meniscus , ORS: Orthopaedic Research Society: 2026

Abdulaziz Alanazi1, Prashant Chandrasekaran1, Bryan Kwok1, Sara F. Tufa2, Douglas R. Keene2, David E. Birk3, Tristan Maerz4, Robert L. Mauck5, Nathaniel A. Dyment5, Eiki Koyama6, Lin Han1, 1Drexel University, Philadelphia, PA; 2Shriners Hospital for Children, Portland, OR; 3University of South Florida, Tampa, FL;, 4ETH Zurich, Zurich, Switzerland; 5University of Pennsylvania, Philadelphia, PA; 6The Children’s Hospital of Philadelphia, Philadelphia, PA. Loss of Type V Collagen Disrupts Mechanosensitive Signaling of TMJ Condylar Cartilage Progenitors , ORS: Orthopaedic Research Society: 2026

Catheline SE, Mundy C, Saunders C, Ramesh S, Shaughnessy KA, Chung J, Koyama E, Pacifici M. An ectopic Hedgehog signaling axis drives directional tumor outgrowth in a mouse model of hereditary multiple osteochondromas , Sci Signal, 18: 2025,eadu6357