Genetic and immunological parameters governing in vivo susceptibility/resistance to retrovirally induced murine malignant histiocytosis.
Malignant histiocytosis sarcoma virus (MHSV) arose as a recombinant of c-Harvey-ras murine sarcoma virus (Ha-MuSV) and Friend mink cell focus-forming virus (F-MCFV). It is a defective acute transforming retrovirus that, along with Friend murine leukemia helper virus (F-MuLV), induces malignant histiocytosis (MH) in susceptible adult mice. We have assessed the in vivo susceptibility to MHSV in inbred homozygous, F1 hybrid, congenic, and recombinant inbred (RI) mice. We have shown that: (1) in vivo resistance to MHSV is multigenic, regulated by MHC and non-MHC genes in a different fashion than with F-MCFV, F-MuLV, or Ha-MuSV; (2) using BXD RI mice, the resistance phenotype is linked with 95.8% probability to two linked loci, Pmv-9 and Iapls3-14, on chromosome 13 (homologous to the area of human chromosome 5 for which a chromosomal break point at position 5q35 is associated with human MH); and (3) CD4+ T cells are critical for MHSV resistance.
Department of Pediatrics, University of Minnesota Hospital and Clinic, Minneapolis, USA. panos001@maroon.tc.umn.edu
A
A
Panoskaltsis-Mortari
R M
RM
Egeler
T M
TM
Yaeger
S
S
Yoneji
L
L
Schmitz
F
F
Lilly
M E
ME
Nesbit
B R
BR
Blazar
D000818:Animals; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology; D002869:Chromosome Aberrations; D002874:Chromosome Mapping; D002895:Chromosomes, Human, Pair 5; D003433:Crosses, Genetic; D005260:Female; D005622:Friend murine leukemia virus / Q000235:genetics / Q000472:pathogenicity; D008040:Genetic Linkage; D020022:Genetic Predisposition to Disease; D054747:Histiocytic Sarcoma / Q000235:genetics* / Q000276:immunology / Q000821:virology*; D006720:Homozygote; D006801:Humans; D007113:Immunity, Innate / Q000235:genetics; D008285:Major Histocompatibility Complex; D051379:Mice; D020297:Mice, Congenic; D008815:Mice, Inbred Strains; D008817:Mice, Mutant Strains; D016513:Mice, SCID; D008908:Mink Cell Focus-Inducing Viruses / Q000235:genetics / Q000472:pathogenicity; D010641:Phenotype; D011995:Recombination, Genetic; D012192:Retroviridae Infections / Q000235:genetics / Q000276:immunology*; D009053:Sarcoma Viruses, Murine / Q000235:genetics / Q000472:pathogenicity