ABSTRACT
Double heterozygosity pathogenic variants in BRCA1 and BRCA2 genes are a very rare finding, particularly in non-Ashkenazi individuals. We described the first case of double heterozygosity variants in a non-Ashkenazi Argentinean woman with metachronous bilateral breast cancer. The proband is a 65-year-old female diagnosed with invasive ductal carcinoma in the left breast at 45 years old and invasive carcinoma in the right breast at 65 years old. She underwent a multi-gene panel testing indicating the presence of two concurrent heterozygous germline deleterious variants NM_007300.4(BRCA1):c.4201C>T (p.Gln1401Ter), and NM_000059.3(BRCA2):c.5146_5149del (p.Tyr1716fs). . The patient's son (40 years-old) was found to have the inherited pathogenic variant in BRCA2 gene. There are few reports of double heterozygosity variants in BRCA1 and BRCA2 genes in Latin America. The two pathogenic variants identified in our patient have not been described together so far.
Subject(s)
BRCA1 Protein/genetics , BRCA2 Protein/genetics , Breast Neoplasms/genetics , Carcinoma, Ductal, Breast/genetics , Neoplasms, Second Primary/genetics , Point Mutation , Sequence Deletion , Adult , Aged , Female , Genetic Counseling , Genetic Predisposition to Disease , Genetic Testing , Heterozygote , Humans , Male , Pedigree , Sequence Analysis, DNAABSTRACT
Three female patients with Cantu syndrome were studied, two of whom were adults presenting with the complication of lymphoedema, as described earlier in a male patient with this syndrome. The aim of this study is to report the clinical characteristics of these three new cases and to emphasize that lymphoedema, as observed in two of the patients described here, has been observed in 11.5% of patients with Cantu syndrome and that heterochromia iridis, observed in one patient, is probably a new feature of this condition.
Subject(s)
Lymphedema/complications , Adult , Cardiomegaly/complications , Cardiomegaly/diagnostic imaging , Child , Child, Preschool , Genetic Diseases, X-Linked/complications , Genetic Diseases, X-Linked/diagnostic imaging , Humans , Hypertrichosis/complications , Hypertrichosis/diagnostic imaging , Infant , Infant, Newborn , Lymphatic System/pathology , Lymphedema/diagnostic imaging , Lymphography , Male , Osteochondrodysplasias/complications , Osteochondrodysplasias/diagnostic imaging , Ribs/diagnostic imaging , Young AdultABSTRACT
The frequency and phenotype of human antiviral memory CD8(+) T cells in blood are well studied, yet little is known about their distribution within tissues. Analysis of antiviral CD8(+) T cell populations derived from a unique set of normal liver and blood samples identified a consistent population of virus-specific cells within the liver. In comparison to the circulating T cells, the liver-derived T cells were present at frequencies which were variably enriched compared to that in the blood, and showed significant differences with regard to the expression of CD45RA, CD45RO, CD95, CCR7, CD27 and CD28. The differences in these cell surface markers are consistent with a mature 'effector memory' phenotype of antigen-specific CD8(+) T cells within the liver. An enrichment of an activated subset of NKT cells (V alpha 24/V beta 11) was also observed, a finding which may be relevant to the regulation of the antiviral populations.
