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Your Environment. Your Health.

Cellular & Molecular Pathology Branch

The NIH intramural research program has shifted all non-mission-critical laboratory operations to a maintenance phase in order to promote physical distancing and diminished transmission risk of COVID-19. Effective Monday, March 23, 2020, only mission-critical functions within NIH research laboratories will be supported.

Robert Sills, D.V.M., Ph.D.
Robert C. Sills, D.V.M., Ph.D.
Chief, Cellular & Molecular Pathology Branch, Interim Group Leader, Image Analysis Group
Tel 984-287-3839
P.O. Box 12233
Mail Drop B3-06
Durham, N.C. 27709
Cellular & Molecular Pathology Branch: Cells captioned NTP Pathology, Cells captioned Pathology Support, DNA captioned Molecular Pathology, Lab person with mouse in hand captioned Lab Animal Medicine, Cells captioned Clinical Pathology, Mouse embryo captioned Mouse Embryo Phenotyping, Cell captioned Image Analysis. NTP Pathology Pathology Support Molecular Pathology Lab Animal Medicine Clinical Pathology Mouse Embryo Phenotyping Image Analysis

Research Summary

The Cellular and Molecular Pathology Branch (CMPB) provides toxicologic pathology leadership and laboratory animal medicine expertise to meet the goals of the National Toxicology Program and NIEHS using new technologies in biomedical research.  In addition, CMPB provides training of pathology and laboratory animal medicine fellows to be leaders in multidisciplinary research.

CMPB medical scientists and staff are responsible for the following general functions:

  • Directing, managing, evaluating and interpreting all pathology data generated during the conduct of NTP toxicity and carcinogenicity studies
  • Establishing standards, terminology and diagnostic criteria for rodent pathology (NTP Nonneoplastic Lesion Atlas)
  • Investigating molecular mechanisms of spontaneous and chemically induced nonneoplastic and neoplastic lesions in NTP studies
  • Directing the NTP laboratory animal medicine program
  • Providing diagnostic pathology expertise and collaborations with NIEHS investigators and the NIEHS laboratory animal colony
  • Overseeing the scientific activities of the NTP archives and frozen tissue bank
  • Developing new methods/approaches and technologies in pathology and laboratory animal medicine
  • Leading state-of the-science core pathology laboratories which include:
    • Hematology
    • Clinical chemistry
    • Necropsies
    • Histology
    • Immunohistochemistry
    • Electron Microscopy
    • Laser Microdissection
    • Phenotyping (Embryonic Lethality)
    • Digital Imaging/Analysis

The Cellular and Molecular Pathology Branch is organized into seven scientific groups which are led by board certified pathologists and laboratory animal medicine scientists, and fellows of the international academy of toxicologic pathologists.

NTP Pathology Coordinator

Danica Andrews
Program Specialist
Tel 984-287-3882
Fax 919-541-0295

Scientific Support Staff

Carolyn Hall
Administrative Specialist
Tel 984-287-3849
Fax 301-480-3116
Sheila Withers
Tel 984-287-3842
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