PIPages
Labs

Soban Umar

University of California-Los Angeles, CA·Medicine & Clinical Research

Pulmonary hypertension (PH), high blood pressure in the lungs' arteries, forces the right side of the heart to pump against heavy resistance until it fails. Right ventricular failure (RVF) is a major predictor of illness and death in PH, yet current drugs target only the lung blood vessels, and no approved therapy treats the failing right ventricle directly.

Fields

Medicine & Clinical Research

Physiology

Pharmacology

Topics

pulmonary hypertension

right ventricular failure

right heart failure

Grants
1 known grant, through Jun 2027

What they work on

  1. Determine how the Snai1–LOXL2–CTGF axis drives endothelial-to-mesenchymal transition, where vessel-lining cells become scar-forming cells, in right ventricles of PH rats and in human coronary artery endothelial cells.
  2. Determine how the Snai1–LOXL2–CTGF axis, acting through chromatin remodeling, controls right ventricular fibrosis in rat models of pulmonary hypertension and in human cardiac fibroblasts.
  3. Test whether tissue- or cell-specific knockdown of Snai1 and/or LOXL2, a collagen cross-linking enzyme, prevents fibrosis and rescues right ventricular failure in rats with severe pulmonary hypertension.

More about the research

The failing ventricle is marked by remodeling and fibrosis, scar-like stiffening, but the molecular causes are unclear.

Why it matters

Patients with pulmonary hypertension often die of right heart failure, and no approved treatment targets the failing right ventricle. Identifying Snai1 and LOXL2 as drivers of scarring could provide new right-ventricle-specific drug targets that may slow or reverse fibrosis and improve outcomes for these patients.

Known grants

From NIH and NSF research grants. Labs often have other funding we can't see.

Investigating the molecular mechanisms of right ventricular failure in pulmonary hypertension

NIH · Sep 2022 – Jun 2027

Closest labs

Sasha Prisco

University of Minnesota, MN·Medicine & Clinical Research·Early-career

Determine whether Lactobacillus supplementation reduces harmful microtubule remodeling and improves right ventricular function in monocrotaline and Sugen-hypoxia rodent models of pulmonary arterial hypertension.

Qing Lin

Ohio State University, OH·Microbiology & Immunology

Test whether turning Mrgprb2 signaling, a mast-cell surface receptor pathway, up or down changes skin scarring and regeneration, using gene-modified mouse lines in wound healing models.

Peter Leary

University of Washington, WA·Medicine & Clinical Research

Test in a Phase 2, single-center, randomized placebo-controlled trial whether 24 weeks of valsartan, an angiotensin receptor blocker, is safe and improves six-minute walk distance in adults with pulmonary arterial hypertension.

The school

University of California-Los Angeles: 84 labs on PI Pages, $1.9B a year on research, 803 research doctorates a year.

More about University of California-Los Angeles

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