Van de Verg L, Herrington D A, Murphy J R, Wasserman S S, Formal S B, Levine M M
Department of Medicine, University of Maryland, School of Medicine, Baltimore 21201.
Infect Immun. 1990 Jun;58(6):2002-4. doi: 10.1128/iai.58.6.2002-2004.1990.
The ability of bivalent Salmonella typhi-Shigella sonnei vaccine strain 5076-1C to stimulate an intestinal immunoglobulin A response in humans was evaluated by detecting gut-derived, trafficking antibody-secreting cells (ASC) in peripheral blood. Following vaccination, an immunoglobulin A-ASC response to O antigens of S. typhi and S. sonnei was observed in 10 of 13 and 13 of 13 vaccine recipients, respectively. Experimental challenge with pathogenic S. sonnei stimulated an ASC response to the S. sonnei O antigen in all subjects who developed clinical illness. The magnitude of the ASC response to challenge was significantly greater than that resulting from vaccination. Furthermore, compared with the response of the unimmunized controls, individuals previously immunized with 5076-1C demonstrated a significantly greater ASC response following challenge with S. sonnei.
通过检测外周血中来源于肠道的、迁移性抗体分泌细胞(ASC),评估双价伤寒沙门氏菌-宋内氏志贺氏菌疫苗株5076-1C刺激人体肠道免疫球蛋白A反应的能力。接种疫苗后,分别在13名疫苗接种者中的10名和13名中观察到对伤寒沙门氏菌和宋内氏志贺氏菌O抗原的免疫球蛋白A-ASC反应。用致病性宋内氏志贺氏菌进行实验性攻击,在所有出现临床疾病的受试者中均刺激了对宋内氏志贺氏菌O抗原的ASC反应。攻击后ASC反应的幅度明显大于接种疫苗所产生的反应。此外,与未免疫对照组的反应相比,先前用5076-1C免疫的个体在受到宋内氏志贺氏菌攻击后表现出明显更强的ASC反应。