A monoclonal antibody, 12E7, raised against lymphocytes from a patient with a T-cell acute lymphocytic leukaemia reacts strongly with cortical thymocytes and, to a lesser extent, with other human cells. The antigen defined by 12E7 is not expressed on mouse or hamster cells; this species specificity allowed us to investigate the genetics of the expression of the 12E7 antigen using human--rodent somatic-cell hybrids. Hybrid cells which contain the human X chromosome as the only human genetic contribution react with 12E7. The X-linkage of the gene, or genes, controlling 12E7 antigen expression and the fact that 12E7 antigen is also expressed on red blood cells led us to investigate the possibility of a relationship with the X-linked Xg blood group system. Although the 12E7 and Xga antigens seem to be different antigenic determinants specified by different loci, we report here a sex-limited effect involving the Xg phenotype on the expression of 12E7 antigen.

Download full-text PDF

Source
http://dx.doi.org/10.1038/289404a0DOI Listing

Publication Analysis

Top Keywords

12e7 antigen
16
12e7
8
expression 12e7
8
antigen
5
human
4
human quantitative
4
quantitative polymorphism
4
polymorphism blood
4
blood groups
4
groups monoclonal
4

Similar Publications

To investigate the clinicopathological and molecular genetic characteristics of intracranial mesenchymal tumors with FET::CREB fusion transcript. The clinical and imaging data of 6 cases of intracranial mesenchymal tumors with FET::CREB fusion from December 2018 to December 2023 were collected at the First Affiliated Hospital of Zhengzhou University. Their histological features, immunophenotype and molecular characteristics were analyzed.

View Article and Find Full Text PDF

Solitary fibrous tumors of the oral and maxillofacial region: a case series from a single-center.

BMC Oral Health

November 2024

Department of Stomatology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.

Background: Solitary fibrous tumor (SFT) is a rare mesenchymal lesion that has a wide anatomic distribution. However, this lesion rarely occurs in the oral or maxillofacial region.

Methods: A retrospective review was performed to evaluate the clinical symptoms, radiological images, pathology and immunohistochemistry results of 9 patients with SFTs treated between January 2015 to April 2024 in our institute.

View Article and Find Full Text PDF

Exploring the Biological Activity of a Humanized Anti-CD99 ScFv and Antibody for Targeting T Cell Malignancies.

Biomolecules

November 2024

Division of Clinical Immunology, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand.

CD99, a type I transmembrane protein, emerges as a promising therapeutic target due to its heightened expression in T cell acute lymphoblastic leukemia (T-ALL). This characteristic renders it a potential marker for minimal residual disease detection and an appealing target for antibody-based treatments. Previous studies have revealed that a mouse monoclonal antibody, mAb MT99/3, selectively binds to CD99, triggering apoptosis in T-ALL/T-LBL cells while preserving the integrity of healthy cells.

View Article and Find Full Text PDF
Article Synopsis
  • * Key findings revealed that young women (20-35 years) show higher expression of certain protective genes, like selenoproteins and heat shock proteins, indicating better resistance to oxidative stress.
  • * The study identified age-related differences in gene expression (e.g., BID and CD99) that suggest middle-aged women may face higher inflammation risk, with implications for developing new diagnostics and treatments for healthy aging.
View Article and Find Full Text PDF

The lack of circulating biomarkers for tumor monitoring is a major problem in Ewing sarcoma management. The development of methods for accurate tumor monitoring is required, considering the high recurrence rate of drug-resistant Ewing sarcoma. Here, we describe a sensitive analytical technique for tumor monitoring of Ewing sarcoma by detecting circulating extracellular vesicles secreted from Ewing sarcoma cells.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!