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Novel Pure αVβ3 Integrin Antagonists That Do Not Induce Receptor Extension, Prime the Receptor, or Enhance Angiogenesis at Low Concentrations.

ACS pharmacology & translational science

Li J, Fukase Y, Shang Y, Zou W, Muñoz-Félix JM, Buitrago L, van Agthoven J, Zhang Y, Hara R, Tanaka Y, Okamoto R, Yasui T, Nakahata T, Imaeda T, Aso K, Zhou Y, Locuson C, Nesic D, Duggan M, Takagi J, Vaughan RD, Walz T, Hodivala-Dilke K, Teitelbaum SL, Arnaout MA, Filizola M, Foley MA, Coller BS.
PMID: 32259072
ACS Pharmacol Transl Sci. 2019 Aug 02;2(6):387-401. doi: 10.1021/acsptsci.9b00041. eCollection 2019 Dec 13.

The integrin αVβ3 receptor has been implicated in several important diseases, but no antagonists are approved for human therapy. One possible limitation of current small-molecule antagonists is their ability to induce a major conformational change in the receptor that...

Pre-Hospital Antiplatelet Therapy for STEMI Patients Undergoing Primary Percutaneous Coronary Intervention: What We Know and What Lies Ahead.

Thrombosis and haemostasis

Fabris E, Korjian S, Coller BS, Ten Berg JM, Granger CB, Gibson CM, van 't Hof AWJ.
PMID: 33677829
Thromb Haemost. 2021 Dec;121(12):1562-1573. doi: 10.1055/a-1414-5009. Epub 2021 Mar 07.

Early recanalization of the infarct-related artery to achieve myocardial reperfusion is the primary therapeutic goal in patients with ST-elevation myocardial infarction (STEMI). To decrease the duration of ischaemia, continuous efforts have been made to improve pre-hospital treatment and to...

Preclinical Studies of RUC-4, a Novel Platelet αIIbβ3 Antagonist, in Non-Human Primates and With Human Platelets.

Journal of clinical and translational science

Vootukuri S, Li J, Nedelman M, Thomas C, Jiang JK, Babayeva M, Coller BS.
PMID: 31544007
J Clin Transl Sci. 2019 Jun;3(2):65-74. doi: 10.1017/cts.2019.382. Epub 2019 Jun 28.

INTRODUCTION: We are developing the novel αIIbβ3 antagonist, RUC-4, for subcutaneously (SC)-administered first-point-of-medical-contact treatment for ST Segment Elevated Myocardial Infarction (STEMI).METHODS: We studied the: 1. pharmacokinetics (PK) of RUC-4 at 1.0, 1.93, and 3.86 mg/kg IV, IM, and SC...

αIIbβ3 binding to a fibrinogen fragment lacking the γ-chain dodecapeptide is activation dependent and EDTA inducible.

Blood advances

Zafar H, Shang Y, Li J, David GA, Fernandez JP, Molina H, Filizola M, Coller BS.
PMID: 29296957
Blood Adv. 2017 Feb 22;1(7):417-428. doi: 10.1182/bloodadvances.2017004689. eCollection 2017 Feb 28.

Platelet integrin receptor αIIbβ3 supports platelet aggregation by binding fibrinogen. The interaction between the fibrinogen C-terminal γ-chain peptide composed of residues γ-404-411 (GAKQAGDV) and the Arg-Gly-Asp (RGD) binding pocket on αIIbβ3 is required for fibrinogen-mediated platelet aggregation, but data...

Showing 1 to 4 of 4 entries