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Субпопуляции Т-лимфоцитов периферической крови больных гемобластозами на фоне трансфузий лимфоцитов донора после трансплантации аллогенных гемопоэтических стволовых клеток

Субпопуляции Т-лимфоцитов периферической крови больных гемобластозами на фоне трансфузий лимфоцитов донора после трансплантации аллогенных гемопоэтических стволовых клеток

Abstract

Цель работы оценка эффективности трансфузий лимфоцитов донора (ТЛД) после трансплантации аллогенных гемопоэтических клеток (алло-ТГСК), а также исследование субпопуляции Т-лимфоцитов в периферической крови у больных гемобластозами после алло-ТГСК на фоне ТЛД. В исследование включены 15 больных гемобластозами после алло-ТГСК. Показаниями для ТЛД были посттрансплантационный рецидив или несостоятельность миелотрансплантата. Лимфоциты донора (в дозе 1 • 107 CD3 +-клеток/кг с последующей эскалацией) переливали 1-5 раз, каждая ТЛД сопровождалась введением интерлейкина-2. Исследование субпопуляций Т-лимфоцитов периферической крови осуществляли методом иммунофенотипирования с проточной цитофлюориметрией. Ремиссия со 100% донорским химеризмом достигнута у 56% больных. Частота острой и хронической реакции трансплантат против хозяина (РТПХ) составила 31%. Наличие хронической РТПХ ассоциировалось с длительным полным ответом на лечение. Результаты оценки субпопуляций Т-лимфоцитов позволили охарактеризовать изменения их содержания в зависимости от фазы заболевания и степени ответа на проводимую адоптивную иммунотерапию.

The efficiency of donor lymphocyte infusions (DLI) after allogenic hemopoietic stem cells transplantation (allo-HSCT) was evaluated and peripheral blood T-lymphocyte subpopulations were studied in patients with hematological malignancies receiving dLi after allo-HSCT. The study was carried out in 15 patients with hematological malignancies after allo-HSCT. Indications for DLI were posttransplantation relapses or the transplant incompetence. Donor lymphocytes (1x10 7 CD3+ cells/kg with subsequent escalation) were transfused 1 to 5 times, each DLI was accompanied by injection of interleukin-2. Peripheral blood T-lymphocyte subpopulations were studied by immunophenotyping with flow cytofluorometry. Remission with 100% donor chimerism was achieved in 56% patients. The incidence of acute and chronic Graft Versus Host (GVH) reaction was 31%. Chronic GVH reaction was associated with long-term complete response to treatment. Evaluations of T-lymphocyte subpopulation demonstrated changes, depending on the disease phase and response to adoptive immunotherapy.

Keywords

ТРАНСПЛАНТАЦИЯ АЛЛОГЕННЫХ ГЕМОПОЭТИЧЕСКИХ СТВОЛОВЫХ КЛЕТОК, ТРАНСФУЗИИ ЛИМФОЦИТОВ ДОНОРА, ИНТЕРЛЕЙКИН-2, СУБПОПУЛЯЦИИ Т-ЛИМФОЦИТОВ, ВЫЖИВАЕМОСТЬ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold