Robert Sills

Robert Sills is a Professor and Chief of the Comparative and Molecular Pathogenesis Branch at the National Institute of Environmental Health Sciences (NIEHS). With a background in veterinary medicine and molecular biology, his research focuses on elucidating the molecular and cellular mechanisms of chemical-induced carcinogenesis in the liver, lung, and other organ systems. He also investigates the application of molecular pathology techniques to evaluate non-neoplastic tissue changes caused by environmental exposures.

Research Interests

• Molecular pathology of chemical-induced diseases
• Development of animal models for toxicological studies
• Computational approaches to gene expression analysis
• Epigenetic and immune responses to environmental agents

Key Trends in Recent Publications

His recent work spans toxicology, molecular biology, and computational pathology, with specific emphasis on:

• Epidermal growth factor receptor (EGFR) signaling in hepatocarcinogenesis
• Transcriptomic profiling of chemically exposed tissues
• Epigenetic alterations in response to arsenic and endocrine disruptors
• Advances in laser microdissection and immunohistochemistry
• Mechanistic insights into oxidative stress and fibrosis
• Multi-omics integration for predictive toxicology

Scientific Awards

• Fellow, International Academy of Toxicologic Pathology (IATP)

Technological Contributions

Sills has pioneered the use of laser capture microdissection and multi-omics data harmonization to improve precision in toxicological pathology. His team has developed standardized protocols for gene expression analysis in rodent models and epigenetic profiling of chemically induced lesions.