Previous work carried out to characterise different immune cells in ruminant placentas found strong CD79 nuclear labelling in cells histologically resembling trophoblast cells. In the attempt to characterize this cell population, placentomes collected from cattle, sheep and water buffaloes were examined by immunohistochemistry with single and double labelling using monoclonal antibodies (mAb) against B lymphocytes and trophoblast cells. Most CD79 + cells co-expressed placental lactogen or cytokeratin and were CD21 and MHC class II negative strongly suggesting they do not have a B cell origin. However, a potential immunological role of these cells cannot be ruled out and it is currently unknown if the findings described may have an impact on physiological knowledge, health, and or diseases pathogenesis in ruminants.
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http://dx.doi.org/10.1016/j.vetimm.2019.109942 | DOI Listing |
Hematol Oncol
January 2025
Hematology, Oncology R&D, AstraZeneca, Cambridge, UK.
Contemporary studies of Bruton tyrosine kinase inhibitor (BTKi) resistance focus on mutations in the B-cell receptor (BCR) pathway, but alternative mechanisms of resistance remain undefined. Here, we sought to identify novel predictive markers of acquired resistance to acalabrutinib, a second-generation BTKi, in patients with chronic lymphocytic leukemia (CLL). Clinical samples from 41 patients with relapsed/refractory or treatment-naive CLL receiving acalabrutinib as part of a clinical trial (NCT02029443) were divided into two groups: those who continued to respond to treatment (NP, n = 23) and those who developed progressive disease on acalabrutinib therapy (PD, n = 18).
View Article and Find Full Text PDFJ Immunother Cancer
December 2024
Department of Experimental Hematology, Health Research Institute of the Jimenez Diaz Foundation, UAM, Madrid, Spain, UAM, Madrid, Spain
Background: Infusion of T cells modified with a chimeric antigen receptor (CAR) targeting CD19 has achieved exceptional responses in patients with non-Hodgkin's lymphoma (NHL), which led to the approval of CAR targeting CD19 (CART19) (Axi-cel and Liso-cel) as second line of treatment for adult patients with relapsed/refractory NHL. Unfortunately, 60% of patients still relapse after CART19 due to either a loss of expression of the target antigen (CD19) in the tumor cell, observed in 27% of relapsed patients, a limited CAR-T persistence, and additional mechanisms, including the suppression of the tumor microenvironment. Clinic strategies to prevent target antigen loss include sequential treatment with CARs directed at CD20 or CD22, which have caused loss of the second antigen, suggesting targeting other antigens less prone to disappear.
View Article and Find Full Text PDFJ Comp Pathol
December 2024
Postgraduate Program in Animal Science and Health, Federal University of Campina Grande, Patos, Paraíba, Brazil.
From January 2000 to December 2023 the Laboratory of Animal Pathology of the Federal University of Campina Grande received 6,218 canine autopsy and biopsy submissions, with six (0.09%) autopsy cases diagnosed as transmissible venereal tumour (TVT) with encephalic metastases. The mean age of affected dogs (four females and two males) was 7 years.
View Article and Find Full Text PDFCancer Sci
January 2025
Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan.
J Taibah Univ Med Sci
October 2024
Department of Biology, College of Science, Salahaddin University-Erbil, Erbil, Kurdistan Region, Iraq.
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