PIPages
Labs

Susan Dutcher

Washington University in St Louis, MO·Genetics

Cilia are hair-like structures on cells. Some beat to move fluid or cells, and some sense signals.

Fields

Genetics

Biology

Biochemistry

Topics

cilia

basal bodies

centrioles

Grants
1 known grant, through May 2030

What they work on

  1. Determine how microtubule inner proteins (MIPs) inside ciliary doublet microtubules produce the symmetric beating used by sperm and nodal cilia, and test whether they act through outer dynein arms and tektin. Genetic, biochemical, proteomic and imaging approaches will be used.
  2. Test whether SAXO proteins, a class of MIPs with an Mn-motif, help keep cilia stable.
  3. Identify proteins that interact with epsilon-tubulin using suppressors of a missense mutant, and map how basal body triplet microtubules are assembled with 4x expansion microscopy.
  4. Define the role of taurine-modified α-tubulin in cilia and basal bodies, and how it interacts with other tubulin modifications, using genetics and expansion microscopy.

More about the research

Each cilium is built from a base called the basal body. When cilia or basal bodies fail, the results include ciliopathies, diseases affecting the brain, eyes, kidneys and weight, as well as infertility, misplaced organs and cancer. The lab's long-term goal is to understand which mechanisms go wrong in these diseases.

Why it matters

Defects in cilia and basal bodies cause ciliopathies affecting the brain, eyes and kidneys, along with infertility, organ-placement defects, respiratory illness and cancer. By identifying the proteins and modifications that build and power cilia, this work could reveal disease mechanisms. It may also clarify how gene variants found in patients with infertility or laterality defects cause disease.

Known grants

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

Genetic analysis of centrioles and cilia

NIH · Aug 2019 – May 2030

Closest labs

Helen Willsey

University of California-San Francisco, CA·Neuroscience·Early-career

Determine how SYNGAP1 gene dosage affects cilia formation and Hedgehog signaling in human neural progenitor cells before synapses form, and how this changes their proliferation and differentiation.

Jessica Lynn Feldman

Stanford University, CA·Biology

Build proximity maps of non-centrosomal microtubule organizing centers across C. elegans cell types, using the proteins VAB-10B and WDR-62 as handles, to learn how these sites first arise during differentiation.

Francesca Bartolini

Columbia University, NY·Neuroscience

Test whether unrelated CIPN-causing chemotherapy drugs share a mechanism of altering tubulin post-translational modifications early, before neuropathy symptoms appear, using cellular and preclinical models.

The school

Washington University in St Louis: 97 labs on PI Pages, $1.2B a year on research, 365 research doctorates a year.

More about Washington University in St Louis

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