Hypoxia Responses in Physiology and Pathogenesis
Changes in tissue oxygen levels occur under pathological conditions and physiologically during development. The laboratory of Volker Haase studies hypoxia response pathways and their therapeutic applications.
The laboratory of Professor Volker Haase studies hypoxia response pathways and their therapeutic applications in erythropoiesis and iron metabolism, kidney injury and ischemic pre-conditioning, inflammation, kidney development and tumorigenesis. A major focus of the lab is on the interplay between hypoxia signaling, metabolism and cellular differentiation and its regulation by the prolyl hydroxylase domain (PHD) / hypoxia-inducible factor (HIF) / von Hippel-Lindau tumor suppressor (VHL) signaling axis. Haase group members take advantage of powerful cutting-edge mouse genetics, biochemical, metabolomic and single cell approaches to study oxygen and mitochondrial metabolism in kidney, urologic and other diseases. Click on links for information about career opportunities in the Haase lab and recent publications.
Lab news and updates
New insights into the role of glycogen as an energy resource in acute kidney injury
April 2020
A perspective in Kidney International on how renal glycogen metabolism may contribute to cytoprotection afforded by pre-ischemic HIF–prolyl hydroxylase inhibition.
for link to editorial click here
Kyoji Yamaguchi joins the Haase group
November 2019
The Haase lab welcomes Dr. Kyoji Yamaguchi. Dr. Yamaguchi joined the Vanderbilt faculty coming from Japan where he led a drug discovery program in a prominent pharmaceutical company and developed HIF-prolyl hydroxylase inhibitors for the treatment of anemia and chronic kidney disease.
for information on current Haase group members and alumni click here
Review published on current clinical experience with HIF-activators in renal anemia therapy
August 2019
Hypoxia-inducible factor activators in renal anemia: Current clinical experience
Prolyl hydroxylase domain (PHD) oxygen sensors are dioxygenases that regulate the activity of hypoxia-inducible factor (HIF). Small molecule inhibitors of PHD dioxygenases stimulate the production of endogenous EPO and improve iron metabolism resulting in effective anemia management in patients with chronic kidney disease. In this review Volker Haase and Neil Sanghani survey current clinical experience with HIF-PHIs, discuss potential therapeutic advantages and deliberate over safety concerns regarding long-term administration in patients with renal anemia. > …
link to erythropoiesis, iron metabolism and renal anemia
link to media files on renal anemia
Welcome our new lab member Belinda Li
July 2019
Dr. Belinda Li received her M.D. from the State University of New York (SUNY) Downstate College of Medicine. She completed her Urology residency at Loyola University in Chicago, IL and currently is a fellow in Pediatric Urology. Dr. Li works with Drs. Clayton and Tong on the role of hypoxia and HIF signaling in bladder injury and inflammation. Welcome to the Haase lab.
for information on current Haase group members and alumni click here
Congratulations to our collaborator Mark Boothby on the acceptance of his PNAS paper
April 2019
Hypoxia-inducible factors in CD4+ T cells promote metabolism, switch cytokine secretion, and T cell help in humoral immunity
T cell help in humoral immunity includes interactions of B cells with activated extrafollicular CD4+ and follicular T helper (Tfh) cells. Each can promote antibody responses but Tfh cells play critical roles during germinal center (GC) reactions. After restimulation of their antigen receptor (TCR) by B cells, helper T cells act on B cells via CD40 ligand and secreted cytokines that guide Ig class switching. Hypoxia is a normal feature of GC, raising questions about molecular mechanisms governing the relationship between hypoxia response mechanisms and T cell help to antibody responses. > …