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首页> 外文期刊>Infection and immunity >Cytophilic Macroglobulin Reactive with Bacterial Protein in Mice Immunized with Ribonucleic Acid-Protein Fractions of Virulent Salmonella typhimurium
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Cytophilic Macroglobulin Reactive with Bacterial Protein in Mice Immunized with Ribonucleic Acid-Protein Fractions of Virulent Salmonella typhimurium

机译:鼠伤寒沙门氏菌核糖核酸蛋白组分免疫小鼠中的细菌蛋白与嗜酸性巨球蛋白反应。

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Cytophilic macroglobulin was eluted (by heating at 56 C for 60 min) from lymphoid cells of mice immunized with subfractions of virulent Salmonella typhimurium SR-11 or vaccinated with an attenuated strain of S. typhimurium (RIA). No such macroglobulin was present on comparable cell populations from normal or adjuvant-injected mice. Cytophilic macroglobulin was also present in the sera of immunized mice. In mice immunized with RNA and protein-containing subfractions extracted from lysates of S. typhimurium SR-11, the cytophilic macroglobulin was present by 14 days after immunization, whereas it was present by 10 days in mice injected with living attenuated S. typhimurium RIA. This macroglobulin reacts specifically with protein-rich components present in the immunogenic subfractions of the whole bacterial cells and has been demonstrated to facilitate phagocytic uptake of virulent S. typhimurium SR-11. Moreover, a similar protein material was present in broth culture media in which the salmonellae were cultivated. Greater amounts were detectable in older (4 day) cultures.
机译:从用强毒的鼠伤寒沙门氏菌 SR-11亚组分免疫或用减毒的 S株接种的小鼠的淋巴样细胞中洗脱(通过在56°C加热60分钟)嗜酸性巨球蛋白。鼠伤寒(RIA)。在正常或佐剂注射的小鼠的可比较细胞群中不存在这种巨球蛋白。嗜细胞的巨球蛋白也存在于免疫小鼠的血清中。在用RNA和从 S裂解物中提取的含蛋白质的亚组分免疫的小鼠中。在鼠伤寒沙门氏菌SR-11中,在免疫后14天存在嗜细胞巨球蛋白,而在注射了减毒活的 S的小鼠中则存在10天。鼠伤寒 RIA。该巨球蛋白与整个细菌细胞的免疫原性亚组分中存在的富含蛋白质的成分发生特异性反应,并已证明可促进吞噬吞噬有毒的 S。鼠伤寒 SR-11。此外,在培养沙门氏菌的肉汤培养基中存在类似的蛋白质物质。在较旧的(4天)培养物中可检测到更多的量。

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