Menon P Krishna
Classified Specialist (Pathology), 7 Air Force Hospital, Nathu Singh Road, Kanpur 208004.
Med J Armed Forces India. 1996 Jul;52(3):161-165. doi: 10.1016/S0377-1237(17)30792-X. Epub 2017 Jun 26.
Twenty strains each of susceptible and multiple drug resistant strains of were compared for susceptibility to complement lysis and cellular invasion. Drug resistant strains showed increased resistance to complement killing. Antibody increased the efficiency of complement killing of Susceptible and drug resistant strains showed almost the same rates of adherence and invasion of HeLa cells and human monocyte cell lines. However, the resistant strains showed a relatively higher rate of intracellular multiplication after 6 hours within human mononuclear macrophages. Decreased killing by complement and the relatively higher multiplication within mononuclear macrophages of the drug resistant strains may be the reason for their increased virulence.
对20株敏感菌株和20株多重耐药菌株进行了补体裂解敏感性和细胞侵袭能力的比较。耐药菌株对补体杀伤的抗性增强。抗体提高了补体对敏感菌株和耐药菌株的杀伤效率。敏感菌株和耐药菌株对HeLa细胞和人单核细胞系的黏附率和侵袭率几乎相同。然而,耐药菌株在人单核巨噬细胞内6小时后的细胞内增殖率相对较高。补体杀伤作用降低以及耐药菌株在单核巨噬细胞内相对较高的增殖率可能是其毒力增加的原因。