CRTAM+ NK cells endowed with suppressor properties arise in leukemic bone marrow
| العنوان: | CRTAM+ NK cells endowed with suppressor properties arise in leukemic bone marrow |
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| المؤلفون: | Jessica L Prieto-Chávez, Sonia Mayra Pérez-Tapia, Rosana Pelayo, Armando Vilchis-Ordoñez, Carlos Samuel Galán-Enríquez, Juan Carlos Balandrán, Antonio Sandoval, Sandra Padilla-Castañeda, Vianney Ortiz-Navarrete, Eduardo Vadillo, Dalia Ramírez-Ramírez, Elva Jiménez-Hernández |
| المصدر: | Journal of Leukocyte Biology. 105:999-1013 |
| بيانات النشر: | Oxford University Press (OUP), 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | education.field_of_study, Tumor microenvironment, biology, CD3, Immunology, Population, Clone (cell biology), CD34, Cell Biology, CD19, Haematopoiesis, medicine.anatomical_structure, biology.protein, Cancer research, medicine, Immunology and Allergy, Bone marrow, education |
| الوصف: | Due to their increasing rates of morbidity and mortality, childhood malignancies are considered a global health priority, with acute lymphoblastic leukemias (ALLs) showing the highest incidence worldwide. Control of malignant clone emergence and the subsequent normal-leukemic hematopoietic cell out-competition require antitumor monitoring mechanisms. Investigation of cancer surveillance innate cells may be critical to understand the mechanisms contributing in either disease progression or relapse, and to promote displacement of leukemic hematopoiesis by the normal counterpart. We report here that NK cell production is less and low hematopoietic progenitor numbers contribute to this defect. By investigating the expression of the activation molecule class I restricted T-cell associated molecule (CRTAM) along the hematopoietic lineage differentiation pathway, we have identified lymphoid precursor populations coexpressing CD34, CD56/CD3/CD19, and CRTAM as the earliest developmental stage where activation may take place in specialized niches that display the ligand nectin-like-2. Of note, bone marrow (BM) from patients with ALL revealed high contents of preactivated CD56high NK cells expressing CRTAM and endowed with an exhaustion-like phenotype and the functional capability of producing IL-10 and TGF-β in vitro. Our findings suggest, for the first time, that the tumor microenvironment in ALL directly contribute to exhaustion of NK cell functions by the CRTAM/Necl-2 interaction, and that the potential regulatory role of exhausted-like NK cells may favor malignant progression at the expense of anti-tumor responses. Phenotypic and functional identity of this unique suppressor-like NK cell population within the leukemic BM would be of special interest for the pathobiology of ALL and development of targeting strategies. |
| تدمد: | 1938-3673 0741-5400 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::1c1d94d4918d4fc6bf0e57c3be5d6d06 https://doi.org/10.1002/jlb.ma0618-231r |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........1c1d94d4918d4fc6bf0e57c3be5d6d06 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19383673 07415400 |
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