INTRODUCTION: Flow cytometry allows the analysis of multiple antigens in a single tube at a single cell level. We present a rapid and sensitive two tube flow cytometric protocol for the detection of multiple platelet antigens and activation markers gated on a pure platelet population. MATERIALS AND METHODS: The presence of platelet specific antigens was analyzed in citrated whole blood of normal platelets and from patients diagnosed with platelet abnormalities. Quiescent platelets as well as stimulated platelets were analyzed using a gating strategy based on ubiquitously expressed platelet membrane markers. A ubiquitously expressed platelet marker was combined with antibodies against the activated alpha2b-beta3 (PAC-1), Lysosomal Activated Membrane Protein (CD63) and P-selectin (CD62P). RESULTS: We were able to detect the platelet antigens CD36, CD41, CD42a, CD42b and CD61 in one single tube. Our approach allowed the single tube determination of PAC-1, CD63 and CD62P after activation of platelets by thrombin, collagen, ADP and PAR-1, and determination of platelet abnormalities. CONCLUSIONS: Our two tube multi-parameter screening protocol is suited for the analysis of platelet antigens expressed on quiescent and activated platelets and allows the detection of aberrancies as found in blood of patients with thrombocytopathy such as Glanzmann Thrombasthenia, storage pool disease with diminished granule content and patients treated with clopidogrel and acetylsalicylic acid.
INTRODUCTION: Flow cytometry allows the analysis of multiple antigens in a single tube at a single cell level. We present a rapid and sensitive two tube flow cytometric protocol for the detection of multiple platelet antigens and activation markers gated on a pure platelet population. MATERIALS AND METHODS: The presence of platelet specific antigens was analyzed in citrated whole blood of normal platelets and from patients diagnosed with platelet abnormalities. Quiescent platelets as well as stimulated platelets were analyzed using a gating strategy based on ubiquitously expressed platelet membrane markers. A ubiquitously expressed platelet marker was combined with antibodies against the activated alpha2b-beta3 (PAC-1), Lysosomal Activated Membrane Protein (CD63) and P-selectin (CD62P). RESULTS: We were able to detect the platelet antigens CD36, CD41, CD42a, CD42b and CD61 in one single tube. Our approach allowed the single tube determination of PAC-1, CD63 and CD62P after activation of platelets by thrombin, collagen, ADP and PAR-1, and determination of platelet abnormalities. CONCLUSIONS: Our two tube multi-parameter screening protocol is suited for the analysis of platelet antigens expressed on quiescent and activated platelets and allows the detection of aberrancies as found in blood of patients with thrombocytopathy such as Glanzmann Thrombasthenia, storage pool disease with diminished granule content and patients treated with clopidogrel and acetylsalicylic acid.
Authors: Christian C Yost; Hansjörg Schwertz; Mark J Cody; Jared A Wallace; Robert A Campbell; Adriana Vieira-de-Abreu; Claudia V Araujo; Sebastian Schubert; Estelle S Harris; Jesse W Rowley; Matthew T Rondina; James M Fulcher; Curry L Koening; Andrew S Weyrich; Guy A Zimmerman Journal: J Clin Invest Date: 2016-09-06 Impact factor: 14.808
Authors: Narci C Teoh; Hussam Ajamieh; Heng Jian Wong; Kevin Croft; Trevor Mori; Anthony C Allison; Geoffrey C Farrell Journal: PLoS One Date: 2014-09-15 Impact factor: 3.240
Authors: Rama Soundararajan; Suhas Vasaikar; Robiya Joseph; Fei Yang; Kendra L Allton; Lin Tian; Petra den Hollander; Sevinj Isgandarova; Monika Haemmerle; Barbara Mino; Tieling Zhou; Crystal Shin; Melisa Martinez-Paniagua; Aysegul A Sahin; Jaime Rodriguez-Canales; Juri Gelovani; Jeffrey T Chang; Ghanashyam Acharya; Anil K Sood; Ignacio I Wistuba; Don L Gibbons; Luisa M Solis; Michelle C Barton; Navin Varadarajan; Jeffrey M Rosen; Xiang H Zhang; Sendurai A Mani Journal: Br J Cancer Date: 2021-04-01 Impact factor: 7.640