- ASSISTANT PROFESSOR Pharmacology and Systems Therapeutics
Neuronal transmission depends on the intrinsic ability of neurons to receive multiple synaptic inputs at different subcellular locations and integrate them into a response output. The integration process relies on neurotransmitter-receptor-mediated activation of a complex network of intracellular pathways. Advances in live microscopy techniques have allow us to quantitatively visualize in real time signaling reactions in specific locations within the neuron. These types of studies have provided strong evidence of the inhomogeneous nature of spatial intracellular signaling. Our lab is interested in understanding how these inhomogeneities in signaling events (called signaling microdomains) contribute to signal specificity in neuronal transmission.
To understand such complex processes across multiple levels of organization our approach is to integrate experiments with a quantitative framework. On the experimental side, we use FRET-based, real-time imaging approaches in intact living neurons to study the spatio-temporal dynamics of signaling. The increasing complexity of intracellular signaling requires us to combine FRET imaging with differential equation-based computational modeling to provide insight into the mechanisms that underlie specificity of signaling. These models have proven to be powerful, predictive tools that have revealed many non-intuitive features in neuronal signaling.
Hwangpo TA, Jordan JD, Premsrirut PK, Jayamaran G, Licht JD, Iyengar R, Neves SR. G Protein-regulated inducer of neurite outgrowth (GRIN) modulates Sprouty protein repression of mitogen-activated protein kinase (MAPK) activation by growth factor stimulation. J Biol Chem 2012 Apr; 287(17).
Neves SR. Modeling of spatially-restricted intracellular signaling. Wiley interdisciplinary reviews. Systems biology and medicine 2012 Jan; 4(1).
Neves SR, Iyengar R. Models of spatially restricted biochemical reaction systems. J Biol Chem 2009 Feb; 284(9).
Neves SR, Tsokas P, Sarkar A, Grace EA, Rangamani P, Taubenfeld SM, Alberini CM, Schaff JC, Blitzer RD, Moraru II, Iyengar R. Cell shape and negative links in regulatory motifs together control spatial information flow in signaling networks. Cell 2008 May; 133(4).
Physicians and scientists on the faculty of the Icahn School of Medicine at Mount Sinai often interact with pharmaceutical, device and biotechnology companies to improve patient care, develop new therapies and achieve scientific breakthroughs. In order to promote an ethical and transparent environment for conducting research, providing clinical care and teaching, Mount Sinai requires that salaried faculty inform the School of their relationships with such companies.
Dr. Neves did not report having any of the following types of financial relationships with industry during 2012 and/or 2013: consulting, scientific advisory board, industry-sponsored lectures, service on Board of Directors, participation on industry-sponsored committees, equity ownership valued at greater than 5% of a publicly traded company or any value in a privately held company. Please note that this information may differ from information posted on corporate sites due to timing or classification differences.
Mount Sinai's faculty policies relating to faculty collaboration with industry are posted on our website at http://icahn.mssm.edu/about-us/services-and-resources/faculty-resources/handbooks-and-policies/faculty-handbook. Patients may wish to ask their physician about the activities they perform for companies.
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