M. Neale Weitzmann PhD
Overview
For over two decades, I have studied the mechanisms that regulate basal and pathological bone turnover, focusing on the Immuno-Skeletal Interface (ISI). The ISI is a centralization of immune cells and immune-derived cytokine mediators, paradoxically repurposed to serve discrete functions in skeletal metabolism - a field now referred to as "osteoimmunology". My osteoimmunological research interests include: the bone anabolic properties of anergic T cells and the potential for immuno-regulatory pharmacological agents, to promote bone formation by modulating the immune response; collateral skeletal damage resulting from HIV-induced immunodeficiency and how HIV-antiretroviral therapy (ART) drives immune reconstitution bone loss (IRBL). Other long-term interests and collaborations focus on the role of the immune system in rheumatoid arthritis, natural aging, postmenopausal osteoporosis, sickle cell disease, hemophilia A, cancer metastases, hyperparathyroidism, vascular calcification, and the role of the microbiota in bone turnover under physiological and pathological conditions.
Academic Appointment
- Professor of Internal Medicine with Tenure, Division of Endocrinology and Metabolism and Lipids, Emory University School of Medicine
- Nutrition & Health Sciences Program, Graduate Division of Biological and Biomedical Sciences, Emory University
- Research Biologist, Department of Veterans Affairs, Atlanta VA Medical Center
- Center for AIDS Research (CFAR) Investigator, Emory University
- Clinical Member, Molecular Pathways and Biomarkers Program, Winship Cancer Center Emory University
- Associate Director of the Bone Laboratory, Division of Endocrinology and Metabolism and Lipids, Emory University School of Medicine
Education
Degrees
- B.Sc. from University of the Witwatersrand
- B.Sc. Honors from University of the Witwatersrand
- PhD from University of the Witwatersrand
- MSc from University of the Witwatersrand
Research
Focus
- My research focuses on the immuno-skeletal interface and the mechanisms by which B- and T-cells regulate the maintenance of basal bone homeostasis; and their role in the bone loss associated with inflammatory conditions, estrogen deficiency, HIV/AIDS and aging.
Publications
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Combined Sequential Antiretroviral Therapy-Induced Immune Reconstitution Bone Loss and Estrogen Deficiency Bone Loss are Cumulative in Mice Models.
J Infect Dis
12/27/2024 Authors: Dabeer S; Tripathi AK; Weiss D; Vikulina T; Ofotokun I; Weitzmann MN -
Hydroxyurea blunts mitochondrial energy metabolism and osteoblast and osteoclast differentiation exacerbating trabecular bone loss in sickle cell mice.
Cell Death Dis Volume: 15 Page(s): 907
12/18/2024 Authors: Tripathi AK; Dabeer S; Song J; Vikulina T; Roser-Page S; Alvarez JA; Archer DR; Weitzmann MN -
Gender-affirming hormone therapy preserves skeletal maturation in young mice via the gut microbiome.
J Clin Invest Volume: 134
03/26/2024 Authors: Pal S; Morgan X; Dar HY; Gacasan CA; Patil S; Stoica A; Hu Y-J; Weitzmann MN; Jones RM; Pacifici R -
Linoleic acid blunts early osteoblast differentiation and impairs oxidative phosphorylation in vitro.
Prostaglandins Leukot Essent Fatty Acids Volume: 201 Page(s): 102617
02/01/2024 Authors: Nesbeth P-DC; Ziegler TR; Tripathi AK; Dabeer S; Weiss D; Hao L; Smith MR; Jones DP; Maner-Smith KM; Tu C-L -
Loss of Ptpmt1 limits mitochondrial utilization of carbohydrates and leads to muscle atrophy and heart failure in tissue-specific knockout mice.
Elife Volume: 12
09/06/2023 Authors: Zheng H; Li Q; Li S; Li Z; Brotto M; Weiss D; Prosdocimo D; Xu C; Reddy A; Puchowicz M -
Callus T cells and microbe-induced intestinal Th17 cells improve fracture healing in mice.
J Clin Invest Volume: 133
04/17/2023 Authors: Dar HY; Perrien DS; Pal S; Stoica A; Uppuganti S; Nyman JS; Jones RM; Weitzmann MN; Pacifici R -
Callus T cells and microbe-induced intestinal Th17 cells improve fracture healing in mice
Journal of Clinical Investigation Volume: 133
04/17/2023 Authors: Dar HY; Perrien DS; Pal S; Stoica A; Uppuganti S; Nyman JS; Jones RM; Weitzmann MN; Pacifici R -
The Gut Microbiome restrains melanoma bone growth by promoting the homing of intestinal NK and Th1 cells to the bone marrow
Volume: 38 Page(s): 9 - 9
02/01/2023 Authors: Pal S; Perrien DS; Yumoto T; Faccio R; Weitzmann N; Pacifici R -
Hormone therapy and fractures in postmenopausal women.
AIDS Volume: 36 Page(s): 1683 - 1688
10/01/2022 Authors: Yin MT; Hoover DR; Shi Q; Tien PC; Cohen MH; Kassaye S; Gustafson D; Adimora A; Weitzmann MN; Bolivar H -
Immune Reconstitution Bone Loss Exacerbates Bone Degeneration Due to Natural Aging in a Mouse Model.
J Infect Dis Volume: 226 Page(s): 38 - 48
08/12/2022 Authors: Weitzmann MN; Weiss D; Vikulina T; Roser-Page S; Yu K; McGee-Lawrence ME; Tu CL; Chang W; Ofotokun I