PIPages
Labs

W Todd Lowther

Wake Forest University, NC·Biochemistry

Primary hyperoxaluria (PH) is a group of inherited diseases in which the body makes too much oxalate. Oxalate forms kidney stones and damages the kidneys.

Fields

Biochemistry

Pharmacology

Chemistry

Topics

primary hyperoxaluria

oxalate

glyoxylate

Grants
1 known grant, through Jun 2029

What they work on

  1. Design and synthesize new compounds based on screening hits to explore the structure–activity relationships of hydroxyproline dehydrogenase (HYPDH) inhibitor scaffolds, improving potency, selectivity and drug-like properties.
  2. Determine the biochemical and cellular properties of HYPDH inhibitors, measuring how strongly they block the enzyme that starts hydroxyproline breakdown into oxalate.
  3. Use computational modeling and structural biology to determine how inhibitors bind HYPDH, feeding the binding information back into compound design.
  4. Test whether optimized HYPDH inhibitors lower glyoxylate and oxalate levels in several mouse models of primary hyperoxaluria.

More about the research

Patients with types 2 and 3 have no available therapies. Part of the extra oxalate comes from breaking down hydroxyproline, an amino acid found in the body's collagen and in meat. The team has shown that hydroxyproline is a large source of oxalate in both healthy people and PH patients. It is the largest known contribution to oxalate from any metabolite studied so far. The project aims to build a drug that blocks this pathway at its first step.

Why it matters

People with primary hyperoxaluria, especially types 2 and 3, have no approved therapies and suffer kidney stones and kidney damage. An optimized HYPDH-blocking drug could lower oxalate production from collagen and dietary meat breakdown. This approach may help prevent stones and kidney injury in these patients.

Known grants

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

Hydroxyproline Dehydrogenase Inhibitors for the Treatment of Primary Hyperoxaluria

NIH · Aug 2024 – Jun 2029

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The school

Wake Forest University: 27 labs on PI Pages, $345M a year on research, 54 research doctorates a year.

More about Wake Forest University

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