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1.
Hale AH 《Immunogenetics》1980,10(5):469-479
With the use of monospecific rabbit anti-G protein and mouse monoclonal anti-H-2Kk, we have analyzed the spatial relationship of the serologically defined H-2Kk antigens and the major surface glycoprotein (G protein) of vesicular stomatitis virus (VSV) to those antigens recognized by B10.A (k, d) anti-VSV cytotoxic T lymphocytes (CTLs). The ability of monoclonal anti-H-2Kk or rabbit anti-G protein to inhibit specifically the cytolytic activity of B10.A anti-VSV CTLs indicates that the G protein and the H-2Kk molecules are in close proximity to the viral and H-2Kk antigens recognized by the anti-VSV (CTLs. By the method of sequential immunoprecipitation, we also demonstrated that only 10–30 percent of the serologically defined G and H-2Kk molecules are in theG-H-2K
k
complexes.Abbreviations used in this paper Con A
Concanavalin A
- cpm
counts per minure
- CTLs
cytotoxic T lymphocytes
- E: T ratio
effector: target ratio
- G
major surface glycoprotein of VSV
- MHC
major histocompatibility complex
- MOI
multiplicity of infection
- NP40
Nonidet-P40
- PAGE
polyacrylamide gel electrophoresis
- PBS
phosphate-buffered saline
- SaCI
Staphylococcus aureus, Cowan I strain
- SDS
sodium dodecyl sulfate
- UV
ultraviolet light 相似文献
2.
The purpose of this work was to study the genetic basis of histocompatibility antigens encoded by the mouse minor histocompatibility
(H) locusH-3. Both class I major histocompatibility complex (MHC)-restricted cytotoxic T lymphocytes (CTL) and class II MHC-restricted
helper T cells (TH) specific for antigens encoded by genes within theH-3 locus were isolated and analyzed. Typing a number of mouse strains for expression of antigens recognized by these TH and
CTL suggested that there was a different strain distribution pattern of expression of the antigens recognized by TH compared
with those recognized by CTL. Separation of the genes whose products stimulate TH from those whose products stimulate CTL
was suggested by: (1) analysis of the strain B10.FS(92NX)/Grf that has undergone recombination within theH-3 region; (2) genetic segregation studies of (B10.UW-H-3
b/Sn×C57BL/10Sn)F2 mice; and (3) F1 complementation studies in which CTL specific for products of the TH-defined gene(s) could not be detected, even in the absence
of immune responses to products of the CTL-defined genes. Taken together, these data suggest that in addition to two genes
(B2m andCd-1) within theH-3 region whose products typically stimulate class I MHC-restricted CTL, there is at least one additional gene whose product
selectively stimulates class II MHC-restricted TH. This new gene is located telomeric from the CTL-defined genes and between
the lociwe andun on chromosome 2. These data demonstrate a novel degree of complexity of theH-3 “locus” and suggest selective presentation of minor H gene products in the context of class I or class II MHC proteins. 相似文献
3.
Recombination inH-1, the major histocompatibility complex (MHC) of the rat, has defined two regions,H-1A andH-1B, which determine antigens apparently homologous to the KJD and Ia antigens of the mouse, respectively. Alloantisera directed at these antigens have been absorbed with kidney homogenates. The results showed that cells in the kidney express serologically detectable MHC antigens determined by both theH-1A andH-1B region. Control absorptions indicated that to account for these results in terms of recirculating lymphocytes, two perfused kidneys would need to contain more than 60 percent of the recirculating lymphocyte pool. It appears likely, therefore, that H-1B antigens are expressed by cells resident in the kidney. 相似文献
4.
F1 complementation results indicate that a new gene, putatively controlling a minor histocompatibility antigen, is closely linked to the minor histocompatibility gene,H-3, in the fifth linkage group of chromosome 2 of the mouse. This gene controls a product that was capable of inducing as well as acting as a target for cytotoxic lymphocytes (CTL). The lytic activity of CTL developed in B10.LP-H-3b mice specific for the product of the new gene of B10 was restricted to target cells possessing H-2Db antigens. This contrasts to the H-2Kb-restricted activity of H-3.1 specific CTL. 相似文献
5.
Mixed lymphocyte reaction (MLR) stimulation by purified T and B lymphocytes and thymocytes was studied. The MLR gene products involved were localized to theH-2 complex by the use of congenic mice differing atH-2, and to loci within theH-2 complex through the use of congenic mice bearing recombinant chromosome 17. Stimulation by T cells was investigated in detail. The role of small amounts of contaminating B lymphocytes, and that of backstimulation, was found to be of minor importance. T cells and thymocytes stimulated as well as or better than B cells in combinations differing in theI, S, and possibly parts of theD end, thus suggesting that these genetic regions control cell-surface products expressed on both T and B lymphocyte populations.Abbreviations used in this paper are MLR
mixed lymphocyte reaction
- GVHR
graft-versus-host reaction
- CML
cell-mediated lympholysis
- Thy-1
the gene for the T-cell antigens, synonymous with
- Thy-1.1
synonym for
AKR
- Thy-1.2
synonym for
C3H
- MHC
major histocompatibility complex
-
Ir genes
immune response genes linked to the MHC
- LPS
E. coli 055.35 lipopolysaccharide
For the genetic nomenclature of theH-2 complex (H-2K, H-2D, I, S, D regions,Ia, etc.) see Kleinet al. 1974, and Shreffleret al. 1974. 相似文献
6.
The immune response of T lymphocytes to avidin was measured by proliferative assays, antibody production and delayed-type hypersensitivity. Mice ofH-2
k haplotypes were found to be low responders, whereas mice of other haplotypes, and particularly ofH-2
s
, were high responders.Ir genes controlling this response were mapped to theI subregion ofH-2. Helper T cells were found to be responsible for the Ir phenotype of antibody production. These results indicate the feasibility of using the avidin-biotin complex as a tool for studying molecular mechanisms by which antigens underIr gene control are processed and presented to T lymphocytes.Abbreviations used in this paper
Ir
genes, immune-response genes
-
H-2
murine major histocompatibility complex
- APC
antigen-presenting cell
- OA
ovalbumin
- BSA
bovine serum albumin
- DNP
dinitrophenyl
- DNP-OA
DNP-ovalbumin
- DNP-Av
DNP-avidin
- DNP-BSA
DNP-bovine serum albumin
- CFA
complete Freund's adjuvant
- PPD
purified protein derivative
- PBS
phosphatebuffered saline
- IP
intraperitoneal
- LNC
lymph-node cells
- DTH
delayed-type hypersensitivity 相似文献
7.
Radka Černý-Provazník Peter van Mourik Jacqueline Limpens Tine Leupers Dr. Pavol Iványi 《Immunogenetics》1985,21(5):491-504
Cell fusion was performed between spleen cells from young BALB/cBy (H-2
d) mice which have never been immunized and SP2/0 mouse plasmacytoma cells. A monoclonal H-2-specific cytotoxic IgM antibody was obtained (By-1) which detected a new public biregional H-2 specificity, H-2.m210. The mcAb By-1 reacted strongly with H-2Kd, Dd, and H-2s antigens, gave weak cross-reactions with H-2Kk, Dq, H-2r, and H-2v antigens and was negative with H-2b, H-2f, H-2p, and H-2Ld antigens. A polymorphic reaction pattern was also observed on a panel of lymphocytes from B 10.W strains. The intriguing finding on this reaction pattern was the reactivity on H-2d cells, including the syngeneic BALB/cBy and truly autologous cells. As shown by capping and immunoprecipitation experiments on H-2d cells and by studies on H-2d-transfected mouse L cells, the target molecules for McAb By-1 were H-2Kd and H-2Dd molecules. The BALB/cBy mouse, from whose spleen cells the McAb By-1 was obtained, survived after the fusion experiment, and serum was examined for the presence of cytotoxic H-2-specific antibodies during the rest of its life. At the time of the fusion, no autoreactive serum antibodies were found, but about 4 months later, we found in the serum of this mouse autoreactive H-2-specific cytotoxic IgM antibodies. The serum antibodies followed the same reaction pattern as that of the McAb By-1. As far as we know, this is the first report of autoreactive H-2-specific antibodies in serum of a mouse which has never been immunized and of the first natural autoreactive H-2-specific monoclonal antibody.Abbreviations McAb
monoclonal antibody
- MHC
major histocompatibility complex
-
H-2
major histocompatibility complex of mice
- CTLs
cytotoxic T cells
- FMF
flow microfluorometry
- FITC
fluorescein isothiocyanate
- LPS
lipopolysaccharide W.E. coli 0111:134
- PBS
phosphate-buffered saline
- Iodogen
1,3,4,6,-tetrachloro-3,6-diphenylglycoluril
- GAMIg
goat-antimouse immunoglobulin
- Staph-A
Staphylococcus aureus Cowan I 相似文献
8.
Reinvestigation of alloantisera containing antibodies to murine antigen H-2.7 revealed that the crucial recombinant, A.TFR1 (H-2
an1
), which was reported to separate theH-2G locus from theSs-Slp loci, has ak-like instead off-like H-2.7 antigen. Therefore, the crossover position inH-2
an1
and the position of the G locus in theH-2 map are now uncertain. By using the hemagglutination-serum inhibition test, anti-H-2.7 reactive substance was found to be present in normal mouse serum in a strain-specific manner. Tissue distribution study by absorption analysis indicated that H-2.7 antigen is present, in addition to RBCs, on spleen and lymph node cells, but is absent on thymus cells. Thirty B10.W congenic lines were analysed for the presence of the H-2.7 antigen. Two lines (B 10.CHA2 and B 10.KPA44) were found to be H-2.7 positive by both direct hemagglutination and absorption tests.Abbreviations used in this paper ACT
Ammonium chloride Tris-buffer
- BSA
Bovine serum albumin
- HA
Hemagglutination
- HASI
Hemagglutination serum inhibition
- HBSS
Hanks balanced salt solution
- PBS
Phosphate buffered saline
- PVP
Polyvinylpyrrolidone
- RBCs
Red blood cells 相似文献
9.
Dietrich Götze 《Immunogenetics》1974,1(1):495-506
The specificity of an antiserum directed againstI region associated (Ia) antigens is described. The serum was raised in (DBA/1×B10.D2)F1 mice against lymphocytes of AQR mice, differing from the responder for theI region only. The serum reacts with Ia antigens expressed on B cells (Iab) as well as with Ia antigens expressed on T cells (Iat). Absorption studies indicate that B cells possess at least two Ia antigens, and one of these is shared by T cells. However, this shared antigen is not present on the surface of lymphocytes of thymectomized mice. Analysis of the strain distribution of Iab and Iat antigens revealed that the Iab antigens are present on lymphocytes of mice carrying theIA
k
subregion and that the Iat antigens are present on lymphocytes of mice carryingI region genes of theH-2
k
haplotype located between theIA andIB subregions. This conclusion is based on the analysis of the antiserum's reactivity with T and B cells of the strains B10.A(2R), B10.A(4R) and B10.HTT: the serum reacts with B and T cells of B10.A(2R) but only with B cells of B10.A(4R) mice and only weakly with T cells of B10.HTT mice.Abbreviations ALG
antimouse lymphocyte globulin from rabbits
- B cells
bone marrow derived lymphocytes
- B10
C57BL/10Sn mice
- D1D2F1
(DBA/1×B10.D2)F1 hybrid mice
- GVHR
graft-vs-host reaction
- Ia
I region associated antigen
- Iab
on B cells
- Iat
on T cells
- MLR
mixed lymphocyte reaction
- T cells
thymus-derived lymphocytes
- Thy-1
thymus antigen 1, formerly called theta
- Tx-Lyc
lymphocytes of thymectomized, ALG treated, lethally irradiated and anti-Thy-1 treated bone marrow reconstituted mice
- 2R
B10.A(2R)/SgSn mice
- 4R
B10.A(4R) mice 相似文献
10.
H. C. J. Ertl 《Immunogenetics》1981,12(1):579-586
TheH-2 restriction pattern of cytolytic T lymphocytes (Tc) and T lymphocytes which mediate a delayed-type hypersensitivity response (Td) directed against infectious Sendai virus was investigated usingH-2 mutant mice. Td and Tc lymphocytes exhibit the same fine specificity for self-recognition, for example, B6.C-H- 2bm1 effector T cells were unable to recognize viral antigens in association with wild-type Kb and vice versa, B6.-H- 2bm6 effector cells did not mediate a reaction against virus plus wild-type Kb but, on the other hand, T cells of wild-type Kb recognized virus plus Kbm6.BALB/c-H- 2dm2 T cells lacked reactivity against virus in association with wild-type Dd, but again wild-type Dd effector cells recognized virus plus Ddm2.Abbreviations used in this paper DTH
delayed-type hypersensitivity
- EID50
mean egg infective dose
- FCS
fetal calf serum
- HAU
hemagglutinating units
- LPS
lipopolysaccharide
- Ly(–)
low amount of Ly antigens
- MHC
major histocompatibility complex
- 2-ME
2-mercaptoethanol
- PBS
phosphate-buffered saline
- Tc
cytolytic T cell
- Td
T cell which mediates a delayed-type hypersensitivity reaction 相似文献
11.
Keiko Mori Kazuho Hirata Masaru Kawabuchi Manabu Nakashima Takeshi Watanabe 《Immunogenetics》1991,33(2):101-107
A monoclonal antibody (mAb) TP-3 has been established by immunizing rats with the BALB/c mouse thymic epithelial cell line TEL-2. The TP-3 antigen is expressed on stroma cells of thymus, spleen, and lymph node in syngeneic BALB/c mice (H-2
d
). This antigen is also expressed at a low level on the cell surface of immature thymocytes, and at a high level on mature T and B cells. In allogeneic mice such as C57BL/6 (H-2
b
) or C3H (H-2
k
), no cells expressed the TP-3 antigen. Using H-2 congenic mice, reactivity with mAb TP-3 was found to map to a region of H-2D
d
L
d
or between D
d
and Qa, suggesting that TP-3 is a major histocompatibility complex (MHC) class I antigen. However, immunoprecipitation analysis indicated that this antigen is not identical to the classical mouse class I molecules in terms of molecular size, antigenicity, and tissue distribution. 相似文献
12.
Robert N. Jenkins Carla J. Aldrich Nicholas F. Landolfi Robert R. Rich 《Immunogenetics》1985,21(3):215-225
Cytotoxic T lymphocytes (CTL) activated in H-2 identical, Qa-1 disparate mixed leukocyte cultures recognize H-2-nonrestricted target antigens indistinguishable by strain or tissue distribution from serologically defined Qa-1 antigens. Cloned Qa-l-specific CTL define determinants encoded by four Qa-1 genotypes; we used anti-Qa-1 sera in antibody blocking experiments to determine if these determinants reside on molecules recognized by Qa-1-specific antibodies. Antisera containing Qa-1.1-specific and TL-specific antibodies blocked recognition of two CTL-defined determinants associated with Qa-1
a
. Although both Qa-1 and TL molecules are expressed on activated T cells from appropriate strains, our studies indicated that the CTL recognized Qa-1, not TL. In addition, anti-Qa-1.2 serum inhibited CTL recognition of Qa-1b- and Qa-1c-encoded determinants. Qa-1
d
target cells are unique in that they express determinants recognized by anti-Qa-1a CTL and by anti-Qa-1b CTL. Killing of Qa-1
d
targets by anti-Qa-1a CTL was not inhibited by anti-Qa-1.1 serum, but was partially inhibited by anti-Qa-1.2 serum. Cytotoxicity of Qa-1
d
cells by one anti-Qa-1b CTL clone was inhibited by both anti-Qa-1.2 and anti-Qa-1.1 sera, indicating close association of both serological determinants with the determinants recognized by the CTL. Thus, all of the CTL-defined Qa-1 determinants resided on molecules recognized by Qa-1-specific antibodies, but anti-Qa-1a CTL and Qa-1.1-specific antibodies did not have identical specificities.Abbreviations used in this paper B6
C57BL/6J
- CAB
concanavalin A stimulated lymphoblasts
- CML
cell-mediated lympholysis
- CTL
cytotoxic T lymphocyte
- NMS
normal mouse serum
- MHC
major histocompatibility complex
- MLC
mixed leukocyte culture
- MR
maximum release
- SMDM
supplemented Mishell-Dutton medium
- SR
spontaneous release 相似文献
13.
Effects of fourH-2K mutations on virus-induced antigens recognized by cytotoxic T cells 总被引:1,自引:1,他引:0
R. V. Blanden M. B. C. Dunlop P. C. Doherty H. I. Kohn I. F. C. McKenzie 《Immunogenetics》1976,3(1):541-548
Lysis of ectromelia- or LCM virus-infected macrophage target cells by virus-specific cytotoxic T cells from mice immunized with the homologous virus occurred only where donors of T cells and target cells shared eitherH-2K orH-2D genes. With both viruses, use of T cell or target cell donors bearing mutations (B6.C-H-2ba, B6-H-2bh, B6-H-2bg1, and B6-H-2bg2), all of which apparently occurred in the same single genetic element in theH-2Kb region, abolished (H-2ba) or impaired (H-2bh,H-2bg1 andH-2bg2) lysis in T cell-target cell combinations that shared (apart from the mutations) all other genes in theK, I-A, orI-B regions of theH-2 complex. The data suggest that virus-induced antigenic patterns on infected B6.C-H- 2ba (mutant) cells are more different antigenically from those on C57BL/6 (wild type) cells than are those on infected cells from the other mutants -B6-H-2bh, B6-H-2bg1, and B6-H-2bg2. (B6.C-H-2ba× B6 -H-2bh)F1 mice behaved like B6-H-2bh, indicating no complementation, and confirming that theH-2K gene(s) involved in recognition of virus-infected cells by virus-specific T cells behave as a single element. These findings are discussed in relation to the nature of virus-induced antigenic patterns that are recognized by virus-specific cytotoxic T cells. 相似文献
14.
(AQR×B10)F1 mice were grafted with skin from donors differing in theK, I, KI, andISD regions of theH-2 complex. A dichotomy was observed in the fate of theH-2I-disparate grafts: either they were rejected acutely within the second week or were accepted indefinitely. Acceptances were much more common among male than female hosts. Acceptor status was limited to the I group, was unpredictable in occurrence, was not well-correlated with positive serum anti-Ia titers, and did not confer protection of grafts that were alike atH-2I but different atH-2K orH-2D. Since theH-2I barrier studied here elicited such divergent responses in genetically identical hosts, it is unlikely that any histocompatibility typing test could predict graft fate.Abbreviations used in this paper are MST
median survival time
- MHC
major histocompatibility complex
- CTL
cytotoxic T lymphocyte
- B10
C57 BL/10
- 6R
BIO.T(6R)
- B10.A
BIO. ASn
- H-2-Ia
serologically detected antigens coded in theI region ofH-2
This term is used in preference toIa, since it has recently been shown that Ia-like alloantigens may be coded outside the MHC (Dickleret al. 1975). 相似文献
15.
B10.M (H-2f) spleen lymphocytes were cultured for 14 days with X-irradiated B10.P (H-2
p
) lymphocytes. These primed cells were then tested for their capacity to respond to a secondary stimulation induced by a panel of mouse cells carrying differentH-2 haplotypes. The third-party cells induced various degrees of proliferation which could be expressed as a percentage of the proliferation induced by the primary stimulating strain (relative response = RR) and could then be classified according to the RR. Anti-Ia antibodies present in a B10.M anti-B10.P serum were studied by the dye exclusion lymphocytotoxicity technique (LCT) against the same panel, after absorption of H-2K, D antibodies on B10.P platelets. The strain panel could then be classified according to the LCT titers of the absorbed immune serum. A significant correlation (r=0.96,P<0.01) was found between both classifications. According to the Ia chart, the public specificities involved were Ia.6, 7, and 13, but these did not fully explain either the primed cell reactivity or the LCT results. An unexpected crossreactivity was observed between B10.P and B10. Absorption-elution experiments with A.TH anti-A.TL serum demonstrated that B10 and B10.P share the Ia.3 antigen. These results indicate that the structure(s) recognized by the primed lymphocytes is the Ia antigen(s).Abbreviations used in this paper RR
Relative response
- LCT
Dye exclusion lymphocytotoxicity technique
- MLR
Mixed lymphocyte reaction
- PC
Primed cell
- MHC
Major histocompatibility complex
- PLT
Primed lymphocytes typing test 相似文献
16.
Alloantisera were prepared by reciprocal immunizations with bursal or thymic lymphoid cells between chickens of two inbred lines identical at theB major histocompatibility locus. In cytotoxic assays, antibursa sera were specific for donor-line bursa cells without absorption; antithymus sera were similarly specific for donor-line thymus cells. Both types of sera cytolyzed some peripheral lymphoid cells from spleen, bone marrow, and blood. Absorption of either type of serum with peripheral blood leukocytes removed all cytotoxic reactivity for central lymphoid cells. The inheritance of the alloantigens detected by these specific antisera was studied in F1, F2, and backcross progeny from the two lines. Phenotypes were determined by a method in which antisera preabsorbed with progeny leukocytes were reacted against51Cr-labeled bursal or thymic cells from chickens of both lines. The results established two independent autosomal loci-Bu-1 andTh-1-determining antigens expressed, respectively, on bursal cells and peripheral B lymphocytes or on thymic cells and peripheral T lymphocytes. Cytotoxic testing of bursal or thymic cells from chickens of other inbred lines and F1 populations led to the tentative conclusion that the number of alleles atBu-1 is restricted, whileTh-1 exhibits considerable multiple allelism. 相似文献
17.
The differential expression of H-2 specificities recognized by antibody and by cytotoxic T lymphocytes (CTL) has been studied using a clone (FY7) of the C57BL/6 leukemia cell line FBL-3 (H-2
b
/H-2
b
). Unlike C57BL/10 spleen cells, EL-4 lymphoma cells and Y57-2C leukemia cells (allH-2
b
/H-2
b
), FY7 failed to induce the primary in vitro generation of anti-H-2b CTL by (B10.A x A)F1 (H-2
a
/H-2
a
or (B10.D2 x BALB/c)F1 (H-2
d
/H-2
d
) responder spleen cells. In addition, FY7 was not lysed by, and did not competitively inhibit anti-H-2b CTL. Quantitative absorption tests with H-2Kb and H-2Db antisera revealed that FY7 expressed these antigens in quantitatively similar amounts to EL-4. The H-2Kb product of FY7 appeared to be identical with that of C57BL/10 spleen cells both in apparent molecular weight and isoelectric point. Yet FY7 failed to inhibit anti-H-2Kb CTL competitively in a cold target inhibition assay. Possible mechanisms are discussed for the lack of T-lymphocyte recognition of the H-2Kb-gene product expressed by FY7.Abbreviations used in this paper CTL
cytotoxic T lymphocytes
- MHC
major histocompatibility complex
- MLC
mixed lymphocyte culture
- PAGE
polyacrylamide gel electrophoresis 相似文献
18.
Several kinds of epithelial cells that express H-2 antigens were studied by immunoferritin labeling with an antiserum reacting only with antigens of theI region of theH-2 complex. Spleen lymphocytes were used to test the labeling system and the effect of the epithelial cell dissociation procedure on Ia antigens. Immunoglobulin-positive B10.BR lymphocytes were labeled with an anti-lak serum (A.TH anti-A.TL serum absorbed with BALB/c and B10.D2 cells), while congenic B10.D2 lymphocytes were unlabeled. The distribution of labeled Ia antigens on living B10.BR lymphocytes was patchy, while on cells fixed in periodate-lysine-paraformaldehyde before labeling, the distribution of label was continuous. Fixation evidently immobilized Ia antigens in the lymphocyte membrane. Trypsin and collagenase, as used in the epithelial cell dissociation procedure, had no discernible effect on the Ia antigens of lymphocytes. The epithelial cells studied included the columnar absorptive cells of the small intestine, uterine lining epithelium, tracheal brush cells, and pancreatic exocrine and duct cells. These cells were fixed before dissociation from their respective tissues. Ia antigens were detected only on the columnar absorptive cells of the small intestine. These cells labeled equally well with an antiserum reacting only with theK -end of theH-2 complex. In both cases, congenic control intestinal cells were unlabeled. Thus, intestinal epithelial cells appear to express theIa, K, and presumablyD regions of theH-2 complex, while the other epithelial cell types express only the K and D antigens. On fixed intestinal epithelial cells, Ia and H-2K antigens were continuously distributed on the lateral and basal cell membranes including the zonula adherens, but the antigens were absent from the apical microvillous membrane and the zonula occludens. 相似文献
19.
Spleen cells from an SJL mouse immunized with B10.S spleen cells were fused with the nonsecretor myeloma line NS.1. One established hybrid cell line continuously secreted antibody that recognized a new antigenic specificity, tentatively called Ly-mll. This newly found antigen is detectable on nearly 100 percent of spleen and lymph-node cells, 70 percent of bone-marrow cells, and 20 percent of thymus cells by direct cytotoxicity assays, and on the cells derived from kidney and liver. Strains that are Ly-mll (+) include C57BL/6, C57BL/10J, B10.S, C57BR/cdJ, C57L/J, and C57BL/KsJ. Other mouse strains so far tested are Ly-m11 (–). The strain distribution pattern distinguished Ly-mll from any known murine lymphocyte alloantigens, but it follows theH-3
a
haplotype which is defined by skin transplantation. Linkage tests of nine congenic strains ofH-3 and/orH-13/a loci and five recombinant inbred lines including CXB, BXH, AKXL, SWXL, and BXD revealed no recombinations betweensH-3 andLy-m11 loci on chromosome 2. This newly discovered Ly-m11 alloantigen could itself constitute a minor histocompatibility antigen detectable by serological means.Abbreviations used in this paper RI
recombinant inbred
- H
histocompatibility
- a
non-agouti
- B10
C57BL/10Sn
The prefix m (monoclonal) is used following a suggestion by Klein and co-workers (1979). 相似文献
20.
BALB/c-H-2
db
: A newH-2 mutant in BALB/cKh that identifies a locus associated with theD region 总被引:1,自引:1,他引:0
Ian F. C. McKenzie Gillian M. Morgan Roger W. Melvold Henry I. Kohn 《Immunogenetics》1977,4(1):333-347
A newH-2 mutant, BALB/c-H-2
db
, is described. This mutant originated in BALB/c, is inbred, and is coisogenic with the parental BALB/cKh strain. The mutation is of the loss type since BALB/c-H-
db
rejects BALB/c, but not vice versa. Complementation studies have localized the mutation to theD region of theH-2 complex. A cross between BALB/c-H-2
db
and B10.D2-H-2
da
failed to complement for either BALB/c or B10.D2 skin grafts, indicating that these are two separate mutations at the same locus (Z2). Direct serological analysis and absorption studies revealed that, with one exception, theH-2 andIa specificities of BALB/c and BALB/c-H-2
db
are identical. In particular,H-2.4, the H-2Dd private specificity, is quantitatively and qualitatively identical in the two strains. The exception is that of the specificities detected by antiserum D28b: (k×r)F1 anti-h, which contains anti-H-2.27, 28, and 29. These specificities appear to be absent from theH-2
db
mutant since they are not detected directly or by absorption. Other public specificities are present in normal amounts,e.g., the reaction with antisera to H-2.3, 8, 13, 35, and 36. The reaction with antiserum D28 (f×k)F1 anti-s, which contains antibodies to H-2.28, 36, and 42, is the same in both strains. Antiserum made between the two strains (H-2
db
anti-H-2
d
) reacts like an anti-H-2 serum, in that it reacts with both T and B cells by cytotoxicity, but is not a hemagglutinating antibody. The serum reacts as does the D28b serum in both strain distribution and in cross-absorption studies. We conclude that theH-2
db
mutation occurred at a locus in theD region, resulting in the loss of the H-2.28 public serological specificity and of a histocompatibility antigen. Whether these are one and the same antigen is not yet known. The data, in view of other evidence, imply that the public and private specificities are coded for by separate genes.Abbreviations used in this paper are as follows CML
cell-mediated lysis
- MLR
mixed lymphocyte reaction
- GVHR
graft-versus-host reaction
- RFC
rosette-forming cells
- RAM-Ig
rabbit anti-mouse IgG 相似文献