The Role of Complement in Resistance to Endogenous and Exogenous Infection with a Common Mouse Pathogen, Corynebacterium Kutscheri
نویسندگان
چکیده
In mice, the presence or absence of a single complement (C') component, called hc(1), is controlled by two alleles at the Hc locus. The sera of mice which lack this C' component do not manifest C'-mediated immune hemolysis. When challenged with the common mouse pathogen, Corynebacterium kutscheri, mice possessing hemolytic C' fare slightly better than C'-deficient mice. When mice harboring latent C. kutscheri are administered hydrocortisone, which depresses mouse serum C' levels, pseudotuberculosis is activated with equal frequency in mice of both C' types. These data suggest that in at least one situation the presence of the complete hemolytic C' system may be advantageous to the mouse. In contrast, evidence is presented which shows that under normal laboratory conditions, C'-deficient B10.D2 "old line" mice (Hc(0)/Hc(0)) have a survival advantage over C'-positive B10.D2 "new line" mice (Hc(1)/Hic(1)) during the first 3 wk of life. It is therefore concluded that mouse hemolytic C' has a balanced survival value-that is, under one set of conditions it may be advantageous, whereas in another situation, it may be disadvantageous.
منابع مشابه
Chorioamnionitis and funisitis due to Corynebacterium kutscheri.
When isolated from the female genital tract, diphtheroids are usually regarded as commensal organisms. Corynebacterium kutscheri however is a pathogen in laboratory rodents. We report a case in which C. kutscheri was isolated as a pure culture from the umbilical cord and from other surface sites in an infant. Histological examination of the cord and membranes demonstrated the organisms within t...
متن کاملInherited resistance to Corynebacterium kutscheri in mice.
An analysis of the factors responsible for inherited resistance to Corynebacterium kutscheri was undertaken. Various inbred mouse strains were examined; these included the Swiss Lynch and C57Bl/l mice, their F1 and F2 progeny, and the progeny of the F1 backcrossed to each parent strain. Two modes of inherited resistance are described. An examination suggested that resistance as measured by the ...
متن کاملCorynebacterium kutscheri infection of skin and soft tissue following rat bite.
Corynebacterium kutscheri is a common bacterium isolated from the oral cavity of healthy mice and rats. We report the first well-documented case of C. kutscheri human infection which followed a rat bite. The microorganism was identified by conventional biochemical tests and confirmed by 16S rRNA gene sequence analysis.
متن کاملComparative Effects of Corticosteroids on Host Resistance to Infection in Relation to Chemical Structure
In a comparative study concerning the effect of corticosteroids on host resistance to infections, five compounds were found to decrease host resistance, while three did not have this property, although all eight compounds were highly antiinflammatory. The compounds capable of decreasing host resistance were (I) hydrocortisone acetate; (III) 9alpha-fluoro, 16alpha-methylprednisolone acetate; (IV...
متن کاملCorynebacterial Pseudotuberculosis in Mice
Latent corynebactenai infection occurs naturally in many strains of mice. It can be evoked into the active disease, pseudotuberculosis, by a single injection of 10 mg of cortisone. The cortisone effect was tested in 21 colonies, representing 11 genetically different strains of mice. Animals of the C57B1/6, DBA/2, and RIII strains were shown to be latently infected with Corynebacterium kutscheri...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- The Journal of Experimental Medicine
دوره 124 شماره
صفحات -
تاریخ انتشار 1966