Search Results
53 items found for "Ferhan S Siddiqi"
- Neuropeptide S Encodes Stimulus Salience in the Paraventricular Thalamus
Here we report that neuropeptide S (NPS) signaling in the PVT is necessary for stimulus salience encoding
- Inversago Pharma appoints Glenn S. Vraniak as Chief Financial Officer
biotech company with a unique portfolio of CB1 inverse agonists, today announces the appointment of Glenn S. Vraniak served as Chief Financial Officer of Evaxion Biotech A/S, an AI enabled immuno-oncology company
- Dr. Alexander S. Hauser receives the Bachem award for peptide science
November 2021 Read more at the source #DrGPCR #GPCR #IndustryNews
- GPCRs steer G i and G s selectivity via TM5-TM6 switches as revealed by structures of serotonin...
August 2022 GPCRs steer G i and G s selectivity via TM5-TM6 switches as revealed by structures of serotonin
- In vivo metabolic effects after acute activation of skeletal muscle G s signaling
Objective: The goal of this study was to determine the glucometabolic effects of acute activation of Gs signaling in skeletal muscle (SKM) in vivo and its contribution to whole-body glucose homeostasis. Methods: To address this question, we studied mice that express a Gs-coupled designer G protein-coupled receptor (Gs-DREADD or GsD) selectively in skeletal muscle. We also identified two Gs-coupled GPCRs that are endogenously expressed by SKM at relatively high levels (β2-adrenergic receptor and CRF2 receptor) and studied the acute metabolic effects of activating these receptors in vivo by highly selective agonists (clenbuterol and urocortin 2 (UCN2), respectively). Results: Acute stimulation of GsD signaling in SKM impaired glucose tolerance in lean and obese mice by decreasing glucose uptake selectively into SKM. The acute metabolic effects following agonist activation of β2-adrenergic and, potentially, CRF2 receptors appear primarily mediated by altered insulin release. Clenbuterol injection improved glucose tolerance by increasing insulin secretion in lean mice. In SKM, clenbuterol stimulated glycogen breakdown. UCN2 injection resulted in decreased glucose tolerance associated with lower plasma insulin levels. The acute metabolic effects of UCN2 were not mediated by SKM Gs signaling. Conclusions: Selective activation of Gs signaling in SKM causes an acute increase in blood glucose levels. However, acute in vivo stimulation of endogenous Gs-coupled receptors enriched in SKM has only a limited impact on whole-body glucose homeostasis, most likely due to the fact that these receptors are also expressed by pancreatic islets where they modulate insulin release. Read full article
- HBx induces hepatocellular carcinogenesis through ARRB1-mediated autophagy to drive the G 1/S cycle
HBx-induced cell cycle acceleration and the subsequent proliferative response via the induction of G1/S transcription factor 1; FBS: fetal bovine serum; GPCRs: G protein-coupled receptors; GST: glutathione S-transferase
- An overview of the compartmentalized GPCR Signaling: Relevance and Implications
S., Vojtek, M., Sousa, J. B., & Diniz, C. (2021). , S. K., Karnik, S. S., Hunyady, L., Luttrell, L. M., & Lefkowitz, R. J. (2003). , Volpe, S., Werthmann, R. A., Sriram, K., Wiley, S.
- Nanobodies: New Dimensions in GPCR Signaling Research
., Odongo, S., Radwanska, M., & Magez, S. (2023). pharmacology and toxicology, 57, 19–37. https://doi.org/10.1146/annurev-pharmtox-010716-104710 Rasmussen, S. S., Devree, B. T., Rosenbaum, D. M., Thian, F. S., Kobilka, T. S., Schnapp, A., Konetzki, I., Sunahara, R. K., Gellman, S. H., Pautsch, A., Steyaert, J., Weis, W. S., Ingram, J. R., Venkatakrishnan, A. J., Jude, K. M., Dukkipati, A., Feinberg, E.
- Extracellular signal-regulated kinases – a potential pathway for GPCR-targeted drug discovery
., & Kongsamut, S. (2013). Minireview: targeting GPCR activated ERK pathways for drug discovery. Wei, H., Ahn, S., Shenoy, S. K., Karnik, S. S., Hunyady, L., Luttrell, L. M., & Lefkowitz, R.
- Exscientia and Sanofi Establish Strategic Research Collaboration to Develop AI-driven Pipeline ...
efforts aim to accelerate drug discovery and improve clinical success Agreement to utilize Exscientia ’s develop up to 15 novel small molecule candidates across oncology and immunology, leveraging Exscientia ’s The companies have been working together since 2016 and in 2019, Sanofi in-licensed Exscientia ’s novel
- A cryptic mode of GPCR regulation revealed
Agonist activation of the β2-adrenoceptor (β2AR) causes its S-nitrosylation that is required for the Eliminating β2AR S-nitrosylation by mutation of C265 augments β2AR protein kinase A signaling, enables
- From DNA day to GPCR genomics
S. (2002) National Human Genome Research Institute. S., Caron, M. G., Lefkowitz, R. J., & Strader, C. D. (1986). Molecular pharmacology, 63(6), 1256–1272. https://doi.org/10.1124/mol.63.6.1256 Syed Haneef, S. ., & Ranganathan, S. (2019). Structural bioinformatics analysis of variants on GPCR function.
- Navigating the Signaling Network: RTK and GPCR Crosstalk Uncovered
Notably, the Y320F mutation restored some signaling capabilities, emphasizing Tyr320's role in membrane Reference Roy, S., Sinha, S., Silas, A. J., Ghassemian, M., Kufareva, I., & Ghosh, P. (2024).
- The sixth transmembrane region of a pheromone G-protein coupled receptor, Map3, is implicated in ...
First, we switched GPCRs between S. pombe and the closely related species Schizosaccharomyces octosporus , which showed that SoMam2 (Mam2 of S. octosporus) is partially functional in S. pombe, whereas SoMap3 (Map3 of S. octosporus) is not interchangeable.
- Decoding β-Arrestins: from Structure to function
signaling, they also influence specific pathways such as MAPK signaling (Song, X. et al. 2009, Coffa, S. S. F et al. 2021, Chen, H. et al. 2022). point of origin, suggesting the formation of active "nano domains" in specific membrane niches (Anton, S. S. et al. 2022). S. F. et al. 2021).
- TRPM3 in the eye and in the nervous system - from new findings to novel mechanisms
TRPM3's best understood function is its role as a peripheral noxious heat sensor in mice. However, a clear picture is needed to unravel TRPM3's full potential as experimental tool, diagnostic
- Meet Peter McNamara, Ph.D., Tectonic’s SVP, Head of Research
., Tectonic ’s SVP, Head of Research.
- Canonical chemokine receptors as scavenging “decoys”
while maintaining the responsiveness of canonical G protein-coupled CKRs that bind to the same ligand(s) example of a dual-function receptor that directly regulates both cell migration and scavenging (Volpe S.
- Decoding GPCR Function: The Role of Mutagenesis in Rational Drug Discovery
., Trumpp-Kallmeyer, S., & Humblet, C. (1998). B., Chang, B., & Peisajovich, S. G. (2017). M., & Fields, S. (2014). Deep mutational scanning: a new style of protein science.
- RGS7-ATF3-Tip60 Complex Promotes Hepatic Steatosis and Fibrosis by Directly Inducing TNFα
August 2022 "Aims: The pathophysiological mechanism(s) underlying non-alcoholic fatty liver disease (
- ShouTi Introduces Basecamp Bio as a Wholly Owned Subsidiary to Expand Pipeline and Partnerships
chronic diseases, today introduced Basecamp Bio, a wholly owned subsidiary dedicated to fueling ShouTi ’s
- Unlocking Cell's Secrets: Spontaneous β-Arrestin-Membrane Preassociation Drives Receptor-Activation
., O'Brien, S. L., Stepniewski, T. K., Selent, J., Hill, S. J., & Calebiro, D. (2023). M., Kawakami, K., Masureel, M., Maeda, S., Garcia, K. C., von Zastrow, M., Inoue, A., & Kobilka, B. Reiter, E., Ahn, S., Shukla, A.K., and Lefkowitz, R.J. (2012).
- Do You Believe AI Could Accelerate Drug Discovery?
This study examines these concerns by comparing AF2's predictions with experimental structures for docking This validates AF2's potential in enhancing drug discovery precision and efficiency.
- Confo Therapeutics receives €1.7 million VLAIO grant for further research on GPCR modulators for ...
The grant should help expand Confo Therapeutic ’s research on G protein-coupled receptor (GPCR) drug
- Odorant receptors – a bit of smell for drug discovery
express multiple ORs, tumor cells associated with the nervous system express a single OR gene type (Kalra S. Al 2017) and its activation promotes migration and angiogenesis (Kim S. et. al 2015). OR2AT4 activation leads to reduced proliferation and enhanced apoptosis of acute myeloid leukemia cells (S cells proliferation via activation by β-ionone which initiates prostate cancer cell cycle arrest (Jones S.
- GRK3 is a poor prognosticator and serves as a therapeutic target in advanced gastric adenocarcinoma
However, GRK3’s functions and clinical utility in GAC progression and metastases are unknown.
- Feeder or trigger – CCR2 as a scavenger and regulator of cell migration
the responsiveness of canonical G protein–coupled chemokine receptors that bind to the same ligand(s) an example of a dual-function receptor that directly regulates both cell migration and scavenging (S. Grundmann et al. 2018), did not affect chemokine scavenging, consistent with prior work (S. Scavenging may allow cells to continuously migrate by remaining responsive to chemokines (S.
- Synthesis and characterization of an orally bioavailable small molecule agonist of the apelin recept
Previously, we had identified a novel pyrazole-based agonist 1 ((S)-N-(1-(cyclobutylamino)-1-oxo-5-(piperidin