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C G Lomas

Publications and source records attributed to C G Lomas.

8 recordsLinked to original sources
PubMed1990

Comparison of the reactions of the Rh-related murine monoclonal antibodies BS58 and R6A.

The murine monoclonal antibodies BS58 and R6A are known to recognize epitopes related to the human Rh system: neither antibody reacts with Rhnull cells and the BS58 antigen is not expressed by -D- or .D. cells. It is shown here that the numbers of BS58 and R6A antigen sites vary with Rh phenotype. Both epitopes are well represented on cells of the CDe/CDe, CDe/cDE and CDe/cde phenotypes; BS58 sites are markedly reduced on cde/cde and cDE/cde and are only just detectable on cDE/cDE cells when compared with R6A sites. The number of R6A sites per red cell ranged between 20,000 and 150,000. The evidence indicates that the BS58 epitope is not on the polypeptides carrying D or R6A, nor is it uniquely on one of the polypeptides carrying either C, c, E or e. It is suggested that the BS58 epitope is either common to all the CcED polypeptides or that it is present on a polypeptide which has not yet been identified biochemically.

Animals↗
PubMed1983

Genetic polymorphism of the LW blood group system.

Family studies of rare LW(a-b+) propositi confirm the recent finding based on frequency studies that the LW blood groups are polymorphic in Finland (Sistonen & Tippett, 1982); they are controlled by two alleles LWa (0.97) and LWb (0.03) independent from most other common blood group loci. Lod scores for LW and the loci for 27 markers are presented.

Alleles↗
PubMedDate not supplied

Transient anti-D in an Rh-positive patient with congenital dyserythropoietic anemia type II.

A multiply transfused Rh-positive patient with congenital dyserythropoietic anemia type II or hereditary erythroblastic multinuclearity with a positive acidified serum test is described in whom a transient anti-D was accompanied by a positive direct antiglobulin test. A brief review of the literature and possible mechanisms for this observation are presented.

Adult↗
PubMedDate not supplied

The effect of In(Lu) on some high-frequency antigens.

Antibodies to various high-frequency antigens were used to test red cells of members of 12 families of Lu(a-b-) propositi carrying the In(Lu) gene. Kna, Kna-like, McCa, and Sla usually are expressed more weakly on cells of the Lu(a-b-) members than on those of their relatives who were not Lu(a-b-). In most families, In(Lu) also suppresses Yka and Csa expression. Some antiserums are more efficient than others of the same specificity in demonstrating the weakened expression. The expression of Ch and Rg antigens on red cells is not affected by In(Lu).

Blood Group Antigens↗
PubMedDate not supplied

Restricted expression of LW antigen on subsets of human B and T lymphocytes.

NIM-M8 is a monoclonal IgM antibody, specific for the LWab antigen as shown by its reaction with red cells of all donors except those lacking LWa, LWb and LWab. Indirect immunofluorescent staining and cell sorter analyses have shown that LWab is present on a subpopulation of human lymphocytes. Cell fractionation studies indicate that subsets of both B and T cells express LWab and it may, therefore, provide a further marker for heterogeneity in these lymphocyte populations.

Antibodies, Monoclonal↗