S
Sangyeul Han
Researcher at Harvard University
Publications - 10
Citations - 1515
Sangyeul Han is an academic researcher from Harvard University. The author has contributed to research in topics: TSC2 & TSC1. The author has an hindex of 10, co-authored 10 publications receiving 1412 citations.
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Journal ArticleDOI
Reversal of learning deficits in a Tsc2+/− mouse model of tuberous sclerosis
Dan Ehninger,Sangyeul Han,Carrie Shilyansky,Yu Zhou,Weidong Li,David J. Kwiatkowski,Vijaya Ramesh,Alcino J. Silva +7 more
TL;DR: The results presented here reveal a biological basis for some of the cognitive deficits associated with tuberous sclerosis, and they show that treatment with mTOR antagonists ameliorates cognitive dysfunction in a mouse model of this disorder.
Journal ArticleDOI
NF2/Merlin Is a Novel Negative Regulator of mTOR Complex 1, and Activation of mTORC1 Is Associated with Meningioma and Schwannoma Growth
Marianne James,Sangyeul Han,Carolyn Polizzano,Scott R. Plotkin,Brendan D. Manning,Anat Stemmer-Rachamimov,James F. Gusella,Vijaya Ramesh +7 more
TL;DR: The deregulation of mTORC1 activation underlies the aberrant growth and proliferation of NF2-associated tumors and may restrain the growth of these lesions through negative feedback mechanisms, suggesting that rapamycin in combination with phosphoinositide 3-kinase inhibitors may be therapeutic for NF2.
Journal ArticleDOI
Regulation of mTOR complex 2 signaling in neurofibromatosis 2-deficient target cell types.
Marianne James,Elizabeth Stivison,Roberta L. Beauchamp,Sangyeul Han,Hua Li,Margaret R. Wallace,James F. Gusella,Anat Stemmer-Rachamimov,Vijaya Ramesh +8 more
TL;DR: It is shown that merlin positively regulates the kinase activity of mTORC2, a second functionally distinct mTOR complex, and that downstream phosphorylation of m TORC2 substrates, including Akt, is reduced upon acute merlin deficiency in cells.
Journal ArticleDOI
Phosphorylation of Tuberin as a Novel Mechanism for Somatic Inactivation of the Tuberous Sclerosis Complex Proteins in Brain Lesions
Sangyeul Han,Túlio M. Santos,Ana Cristina Scheidt Puga,Jenn Roy,Elizabeth A. Thiele,Mia McCollin,Anat Stemmer-Rachamimov,Vijaya Ramesh +7 more
TL;DR: A novel mechanism of post-translational inactivation of the TSC2 protein, tuberin, by physiologically inappropriate phosphorylation is demonstrated, which is specific to tuberous sclerosis complex-associated brain lesions and has widespread implications for understanding the tissue specificity of tumor suppressor gene phenotypes.
Journal ArticleDOI
Pam and Its Ortholog Highwire Interact with and May Negatively Regulate the TSC1·TSC2 Complex *
Vanishree Murthy,Sangyeul Han,Roberta L. Beauchamp,Nicole A. Smith,Luciana A. Haddad,Naoto Ito,Vijaya Ramesh +6 more
TL;DR: It is hypothesized that Pam, a protein identified as an interactor of Myc, could regulate the ubiquitination and proteasomal degradation of the tuberin-hamartin complex particularly in the CNS.