Data_Sheet_1_A CD63 Homolog Specially Recruited to the Fungi-Contained Phagosomes Is Involved in the Cellular Immune Response of Oyster Crassostrea gigas.PDF

• Main Authors: Conghui Liu, Chuanyan Yang, Mengqiang Wang, Shuai Jiang, Qilin Yi, Weilin Wang, Lingling Wang, Linsheng Song
• Format: Dataset
• Language: unknown
• Published: 2020
• Subjects: Immunology; Applied Immunology (incl. Antibody Engineering; Xenotransplantation and T-cell Therapies); Autoimmunity; Cellular Immunology; Humoural Immunology and Immunochemistry; Immunogenetics (incl. Genetic Immunology); Innate Immunity; Transplantation Immunology; Tumour Immunology; Immunology not elsewhere classified; Genetic Immunology; Animal Immunology; Veterinary Immunology; tetraspanin; phagosomes recruitment; receptor; innate immune response; Crassostrea gigas; Pacific; Pacific oyster
• Online Access: https://doi.org/10.3389/fimmu.2020.01379.s001; https://figshare.com/articles/dataset/Data_Sheet_1_A_CD63_Homolog_Specially_Recruited_to_the_Fungi-Contained_Phagosomes_Is_Involved_in_the_Cellular_Immune_Response_of_Oyster_Crassostrea_gigas_PDF/12686552

Cluster of differentiation 63 (CD63), a four-transmembrane glycoprotein in the subfamily of tetraspanin, has been widely recognized as a gateway from the infection of foreign invaders to the immune defense of hosts. Its role in Pacific oyster Crassostrea gigas is, however, yet to be discovered. This work makes contributions by identifying CgCD63H, a CD63 homolog with four transmembrane domains and one conservative CCG motif, and establishing its role as a receptor that participates in immune recognition and hemocyte phagocytosis. The presence of CgCD63H messenger RNA (mRNA) in hepatopancreas, labial palps, gill, and hemocytes is confirmed. The expression level of mRNA in hemocytes is found significantly (p < 0.01) upregulated after the injection of Vibrio splendidus. CgCD63H protein, typically distributed over the plasma membrane of oyster hemocytes, is recruited to the Yarrowia lipolytica-containing phagosomes after the stimulation of Y. lipolytica. The recombinant CgCD63H protein expresses binding capacity to glucan (GLU), peptidoglycan (PGN), and lipopolysaccharide (LPS) in the presence of lyophilized hemolymph. The phagocytic rate of hemocytes toward V. splendidus and Y. lipolytica is significantly inhibited (p < 0.01) after incubation with anti-CgCD63H antibody. Our work further suggests that CgCD63H functions as a receptor involved in the immune recognition and hemocyte phagocytosis against invading pathogen, which can be a marker candidate for the hemocyte typing in C. gigas.