Ashish R. Kumar, MD, PhD

Director, Langerhans Cell Histiocytosis Center

Director, Hematology/Oncology Fellowship Program

Academic Affiliations

Associate Professor, UC Department of Pediatrics

Phone 513-803-1631

Fax 513-636-3549



Childhood cancer and blood disorders; immune deficiency


Leukemia biology; cancer biology

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Dr. Kumar received his medical degree from L.T.M. Medical College, Mumbai, India, his PhD in anatomy and cell biology from the University of Iowa, pediatric residency training at the Mayo Clinic and fellowship in pediatric hematology / oncology / BMT at the University of Minnesota. He was appointed to the faculty of the University of Minnesota in the Department of Pediatrics where he was a member of the programs in pediatric leukemia and global pediatrics. He is currently an associate professor of pediatrics in the Division of Bone Marrow Transplantation and Immune Deficiency at Cincinnati Children's within the University of Cincinnati College of Medicine. Dr. Kumar’s laboratory is engaged in researching the biology of infant leukemia. Discoveries made in his laboratory have significantly enhanced the current understanding of leukemia. Dr. Kumar is also active in education. He has delivered invited lectures and grand round presentations on various topics.

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Best Doctors Inc. seal.

Dr. Kumar has been elected by peers for inclusion in the Best Doctors in America List.

MD: LTM Medical College, Mumbai, India.

Residency: Mayo Clinic, Rochester, MN.

Fellowship: University of Minnesota, Minneapolis, MN.

PhD: University of Iowa, Iowa City, IA.

Certification: General Pediatrics; Pediatric Hematology/Oncology Subspecialty.

Licenses: State of Ohio; State of Minnesota.

View PubMed Publications

Aydin SE, Kilic SS, Aytekin C, Kumar A, Porras O, Kainulainen L, Kostyuchenko L, Genel F, Kütükcüler N, Karaca N, Gonzalez-Granado L, Abbott J, Al-Zahrani D, Rezaei N, Baz Z, Thiel J, Ehl S, Marodi L, Orange JS, Sawalle-Belohradsky J, Keles S, Holland SM, Sanal Ö, Ayvaz DC, Tezcan I, Al-Mousa H, Alsum Z, Hawwari A, Metin A, Matthes-Martin S, Hönig M, Schulz A, Picard C, Barlogis V, Gennery A, Ifversen M, van Montfrans J, Kuijpers T, Bredius R, Dückers G, Al-Herz W, Pai SY, Geha R, Notheis G, Schwarze CP, Tavil B, Azik F, Bienemann K, Grimbacher B, Heinz V, Gaspar HB, Aydin R, Hagl B, Gathmann B, Belohradsky BH, Ochs HD, Chatila T, Renner ED, Su H, Freeman AF, Engelhardt K, Albert MH; inborn errors working party of EBMT. DOCK8 Deficiency: Clinical and Immunological Phenotype and Treatment Options - a Review of 136 Patients. J Clin Immunol. 2015 Feb;35(2):189-98.

Roychoudhury J, Clark JP, Gracia-Maldonado G, Unnisa Z, Wunderlich M, Link KA, Dasgupta N, Aronow B, Huang G, Mulloy JC, Kumar AR. MEIS1 regulates an HLF-oxidative stress axis in MLL-fusion gene leukemia. Blood. 2015;125(16):2544-52.

Marsh RA, Rao MB, Gefen A, Bellman D, Mehta PA, Khandelwal P, Chandra S, Jodele S, Myers KC, Grimley M, Dandoy C, El-Bietar J, Kumar AR, Leemhuis T, Zhang K, Bleesing JJ, Jordan MB, Filipovich AH, Davies SM. Experience with Alemtuzumab, Fludarabine, and Melphalan Reduced-Intensity Conditioning Hematopoietic Cell Transplantation in Patients with Nonmalignant Diseases Reveals Good Outcomes and That the Risk of Mixed Chimerism Depends on Underlying Disease, Stem Cell Source, and Alemtuzumab Regimen. Biol Blood Marrow Transplant. 2015 Aug;21(8):1460-70.

Cai X, Gao L, Teng L, Ge J, Oo ZM, Kumar AR, Gilliland DG, Mason PJ, Tan K, Speck NA. Runx1 Deficiency Decreases Ribosome Biogenesis and Confers Stress Resistance to Hematopoietic Stem and Progenitor Cells. Cell Stem Cell. 2015 Jul;pii:S1934-5909(15)00262-3.

Karkare S, Chhipa RR, Anderson J, Liu X, Henry H, Gasilina A, Nassar N, Roychoudhury J, Clark JP, Kumar A, Pauletti GM, Ghosh PK, Dasgupta B. Direct inhibition of retinoblastoma phosphorylation by nimbolide causes cell-cycle arrest and suppresses glioblastoma growth. Clin Cancer Res. 2014 Jan;20(1):199-212.

Khandelwal P, Lawrence J, Filipovich AH, Davies SM, Bleesing JJ, Jordan MB, Mehta P, Jodele S, Grimley MS, Kumar A, Myers K, Marsh RA. The successful use of alemtuzumab for treatment of steroid-refractory acute graft-versus-host disease in pediatric patients. Pediatr Transplant. 2014 Feb;18(1):94.

Liu X, Chhipa RR, Pooya S, Wortman M, Yachyshin S, Chow LM, Kumar A, Zhou X, Sun Y, Quinn B, McPherson C, Warnick RE, Kendler A, Giri S, Poels J, Norga K, Viollet B, Grabowski GA, Dasgupta B. Discrete mechanisms of mTOR and cell cycle regulation by AMPK agonists independent of AMPK. Proc Natl Acad Sci USA. 2014 Jan;111(4):E435-44.

Zhou J, Wu J, Li B, Liu D, Yu J, Yan X, Zheng S, Wang J, Zhang L, Zhang L, He F, Li Q, Chen A, Zhang Y, Zhao X, Guan Y, Zhao X, Yan J, Ni J, Nobrega MA, Löwenberg B, Delwel R, Valk PJ, Kumar A, Xie L, Tenen DG, Huang G, Wang QF. PU.1 is Essential for MLL Leukemia Partially via Crosstalk with the MEIS/HOX Pathway. Leukemia. 2014 Jul;28(7):1436-48.

Jing H, Zhang Q, Zhang Y, Hill BJ, Dove CG, Gelfand EW, Atkinson TP, Uzel G, Matthews HF, Mustillo PJ, Lewis DB, Kavadas FD, Hanson IC, Kumar AR, Geha RS, Douek DC, Holland SM, Freeman AF, Su HC. Somatic reversion in dedicator of cytokinesis 8 immunodeficiency modulates disease phenotype. The Journal of allergy and clinical immunology. 2014 Jun;133(6):1667-75.

Marsh RA, Rao K, Satwani P, Lehmberg K, Müller I, Li D, Kim MO, Fischer A, Latour S, Sedlacek P, Barlogis V, Hamamoto K, Kanegane H, Milanovich S, Margolis DA, Dimmock D, Casper JT, Douglas DN, Amrolia PJ, Veys P, Kumar AR, Jordan BM, Bleesing J, Filipovich A. Allogeneic Hematopoietic Cell Transplantation for XIAP Deficiency: An International Survey Reveals Poor Outcomes. Blood. 2013 Feb 7;121(6):877-83.

Role of MEIS1 in hematopoiesis and hematopoietic transformation. Principal Investigator. National Institutes of Health/National Heart, Lung, and Blood Institute. Jul 2012-Jun 2017.

Novel therapeutics of targeting mTOR pathway in T-cell leukemia. Co-investigator. National Institutes of Health/National Cancer Institute. Jul 2015-Jun 2017.