Associate Professor
Department of Pathology and Anatomical Sciences
Jacobs School of Medicine & Biomedical Sciences
Cell Cycle; Cell growth, differentiation and development; Cytoskeleton and cell motility; Gene Expression; Genomics and proteomics; Molecular and Cellular Biology; Molecular Basis of Disease; Signal Transduction
I am a cell biologist and bioengineer, and my primary research focuses on the rapidly growing area of cell mechanics and mechanotransduction: the role that mechanical forces play in regulating cellular function from healthy to diseased phenotypes.
(1) Cardiovascular Biology, Mechanics and Disease:
Funding source: NIH/National Heart Lung Blood Institute (9/1/2022-6/30/2027; PI),
Empire Discovery Institute (11/4/2022-5/31/2025; PI), UB Center of Excellence in Bioinformatics and Life Sciences (12/1/2023–11/30/2024; PI)
Cardiovascular disease (CVD) is the main cause of death globally. Arterial stiffness is associated with many CVD. The molecular mechanisms governing arterial stiffening and the phenotypic changes in vascular smooth muscle cells (VSMCs) associated with the stiffening process are key areas in cardiovascular biology, mechanics and disease. Evidence suggests that arterial stiffening can drive aberrant migration and proliferation of VSMCs within the vessel wall. Yet, the underlying mechanisms regulating vascular stiffening and the molecular changes within VSMCs associated with the stiffening process remain unclear. While medications reduce hypertension, none specifically target pathways directly related to arterial stiffness.
The overall goal of work in my lab is to address this gap in our understanding by investigating how changes in arterial stiffness affect VSMC function and fundamentally contribute to the progression of CVD. This study also addresses an important concept in vascular tissue remodeling (the interaction between extracellular matrix stiffness and VSMC behavior). Methodologically, my lab use a novel approach to dissect the molecular mechanism in VSMCs: My lab combines methods for manipulating and measuring tissue and cell stiffness using atomic force microscopy and traction force microscopy for simultaneously modulating substrate stiffness and measuring contraction force by culturing cells on a compliant substrate that mimics in vivo mechanical environments of the VSMCs.
(2) Optogenetics and Biophotonics in Stem Cell Biology:
Funding source: National Science Foundation (2/1/2021–1/31/2025; co-PI)
National Science Foundation (8/1/2017–7/31/2022; co-PI)
Major breakthroughs in the field of genomics, embryonic stem cell biology, optogenetics and biophotonics are enabling the control and monitoring of biological processes through light. Additional research in my laboratory focuses on developing a nanophotonic platform able to activate/inactivate gene expression and, thus, control stem cell differentiation in neuronal cells, by means of light-controlled protein-protein interactions. More specifically, the light-controlled molecular toggle-switch based on Plant Phytochrome B and transcription factor Pif6 will be utilized to control the nuclear fibroblast growth factor receptor-1, which is a master regulator of stem cell differentiation.