Tumor promoting mechanisms by regulatory T (Treg) cells
Tumors are rapidly evolving, heterogeneous mixtures of different cells types and extracellular components. They are constantly shaped by mutual interactions, which are critical in determining tumor fate. The main goal of Paula Bos’ laboratory is to unravel the crosstalk between different components of the tumor microenvironment, and how they contribute to tumor progression and metastatic dissemination. We believe that harnessing novel tumor-stromal interactions that support cancer progression will be key to develop effective therapeutic combinations that prolong disease free survival of cancer patients.
A major focus of the lab is the identification of tumor promoting mechanisms by regulatory T (Treg) cells. Treg cells are a subset of CD4 lymphocytes prominently found in tumors, and associated with poor prognosis. They are defined by the expression of the transcription factor Foxp3 and the ability to suppress immune responses. Using a murine PyMT–driven model of mammary carcinogenesis refractory to current immunotherapies, we have demonstrated that Treg cells are required for efficient growth of primary and lung metastatic tumors. In addition, Treg cells are also critical for metastatic outgrowth of brain metastasis, by establishing specific interactions with recruited and brain-resident cells that our lab is working on unravel.
Our lab is currently funded by the Susan G. Komen Foundation and the V Foundation for Cancer Research.
NEWS
Dr. Bos to serve on the Tumor Microenvironment Steering Committee
Dr. Bos receives $2.53M grant from the NIH
Bos awarded $791k to study immune cells in breast cancer
Dr. Bos identifies an immune cell in breast cancer growth
Contact Us
Paula Bos, PhD
Tumor Microenvironment
Paula Bos, PhD
Tumor Microenvironment
Pathology
Massey Cancer Biology Program Co-Leader
Phone: (804) 828-7570
Email: Paula.Bos@vcuhealth.org
He Shen
Postdoctoral researcher
He Shen
Postdoctoral researcher
Pathology
Chelsie Poffenberger, MD
MD/PhD student, Microbiology and Immunology Program
Chelsie Poffenberger, MD
MD/PhD student, Microbiology and Immunology Program
Pathology
Ailén García-Santillán
Graduate student, Human Molecular Genetics Program
Ailén García-Santillán
Graduate student, Human Molecular Genetics Program
Pathology
Elizabeth (Liz) Yimer
Research Assistant
Elizabeth (Liz) Yimer
Research Assistant
Pathology
Nitya Kumar
High School Student
Nitya Kumar
High School Student
Pathology