Mortimer Poncz, MD

faculty photo
Professor of Pediatrics
Department: Pediatrics
Graduate Group Affiliations

Contact information
3615 Civic Center Blvd.
Division of Hematology
The Children's Hospital of Philadelphia
Abramson Research Bdg. Rm. 317
Philadelphia, PA 19104-4318
Office: (215) 590-3574
Fax: (267) 426-5476
Columbia University, 1972.
University of Pennsylvania, 1976.
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Description of Research Expertise

Research Interests
Role of platelets in thrombus development

Key words: platelet; megakaryocyte; hematopoiesis; thrombosis.

Description of Research
My research efforts focus on the megakaryocyte-platelet-thrombus axis. The process by which hematopoietic stem cells differentiate into megakaryocytes, which then release platelets and the function of platelets in thrombosis and inflammation are the central foci of my laboratory. Many of the studies focus on the biology and pathobiology of the platelet-specific proteins, chemokines Platelet Factor 4 (PF4)/Platelet Basic Protein (PBP) and the integrin alphaIIb/beta3 receptor.

Rotation Projects for 2006-2007
1. Murine models of thrombosis.
2. Regulation of megakaryocyte gene expression.
3. Gene therapy lentiviral studies for bleeding disorders. Chemokine sin thrombosis and angiogenesis.

Lab personnel:
1 grad student
1 MD post-doc
3 PhD post-docs
5 lab techs
1 Assist Prof Res

Selected Publications

Khandelwal S, Barnes A, Rauova L, Sarkar A, Rux AH, Yarovoi SV, Zaitsev S, Lambris JD, Myoung SS, Johnson A, Lee GM, Duarte M, Poncz M, Arepally GM, Cines DB. : Complement mediates binding and procoagulant effects of ultra-large HIT immune complexes. Blood June 2021.

Borst S, Nations CC, Klein JG, Pavani G, Maguire JA, Camire RM, Drazer MW, Godley LA, French DL, Poncz M, Gadue P. : Study of inherited thrombocytopenia resulting from mutations in ETV6 or RUNX1 using a human pluripotent stem cell model. Stem Cell Reports 16(6): 1458-1467, June 2021.

Bao J, Mo B, An G, Luo J, Poncz M, Pan G, Li T, Zhou Z. : Von Willebrand Factor Facilitates Intravascular Dissemination of Microsporidia Encephalitozoon hellem. Front Cell Infect Microbiol 11, May 2021.

Estevez B, Borst S, Jarocha D, Sudunagunta V, Gonzalez M, Garifallou J, Hakonarson H, Gao P, Tan K, Liu P, Bagga S, Holdreith N, Tong W, Speck N, French DL, Gadue P, Poncz M. : RUNX-1 haploinsufficiency causes a marked deficiency of megakaryocyte-biased hematopoietic progenitor cells. Blood 137(19): 2662-2675, May 2021.

Oved JH, Paris AJ, Gollomp K, Dai N, Rubey K, Wang P, Spruce LA, Seeholzer SH, Poncz M, Worthen GS. : Neutrophils promote clearance of nuclear debris following acid-induced lung injury. Blood 137(3): 392-397, January 2021.

Oved JH, Lambert MP, Kowalska MA, Poncz M, Karczewski KJ.: Population based frequency of naturally occurring loss-of-function variants in genes associated with platelet disorders. J Thromb Haemost 19(1): 248-254, January 2021.

Apostolidis SA, Sarkar A, Giannini HM, Goel RR, Mathew D, Suzuki A, Baxter AE, Greenplate AR, Alanio C, Abdel-Hakeem M, Oldridge DA, Giles J, Wu JE, Chen Z, Huang YJ, Pattekar A, Manne S, Kuthuru O, Dougherty J, Weiderhold B, Weisman AR, Ittner CAG, Gouma S, Dunbar D, Frank I, Huang AC, Vella LA; UPenn COVID Processing Unit, Reilly JP, Hensley SE, Rauova L, Zhao L, Meyer NJ, Poncz M, Abrams CS, Wherry EJ. : Signaling through FcγRIIA and the C5a-C5aR pathway mediates platelet hyperactivation in COVID-19. bioRxiv 2021.05.01.442279, 2021.

Wang X, Fu RY, Li C, Chen CY, Firrman J, Konkle BA, Zhang J, Li L, Xiao W, Poncz M, Miao CH. : Enhancing therapeutic efficacy of in vivo platelet-targeted gene therapy in hemophilia A mice. Blood Adv 4(22): 5722-5734, November 2020.

DeHelian D, Gupta S, Wu J, Thorsheim C, Estevez B, Cooper M, Litts K, Lee-Sundlov MM, Hoffmeister KM, Poncz M, Ma P, Brass LF. : RGS10 and RGS18 differentially limit platelet activation, promote platelet production, and prolong platelet survival. Blood 136(15): 1773-1782, October 2020.

Cines DB, Zaitsev S, Rauova L, Rux AH, Stepanova V, Krishnaswamy S, Sarkar A, Kowalska MA, Zhao G, Mast AE, Blumberg LJ, McCrae KR, Poncz M, Hubbard JJ, Pyzik M, Blumberg RS.: FcRn augments induction of tissue factor activity by IgG-containing immune complexes. Blood 135(23): 2085-2093, June 2020.

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Last updated: 07/21/2021
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