Low dose donor memory T-cell infusion after TCR alpha/beta depleted stem cell transplantation for patients with malignant disorders

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Abstract

Viral infections are frequent complications in the recipients of the HSCT with TCRαβ and CD19-graft depletion. Adoptive transfer of memory T cells may improve immune response to common pathogens. The work reflects the retrospective safety analysis of using the infusions of CD45RA-depleted donor lymphocytes. Data from 80 patients were analyzed. Up to 3 doses of donor lymphocytes were administered at monthly intervals, escalating to 100 × 103/kg in haploidentical transplants and 300 × 103/kg in MUD transplants. Median follow-up for alive patients was 18 (8–44) months. We did not observe any allergic reactions, septic complications after infusion of donor lymphocytes (DLI). The cumulative incidence of a de novo acute GVHD after DLI was 5% (95% CI: 2–13). In 64% patients (n = 51) was detected CMV in the blood. There were no cases of resistant CMV disease on the background of drug therapy. In patients who received DLI, 70% (n = 56) had documented appearance of virus-specific lymphocytes in peripheral blood (Elispot assay). Thus, the introduction of memory T cells at a dose of 25–100 × 103/kg body weight of the recipient for CD3+ in the case of HSCT from a haploidentical donor and 100–300 × 103/kg for an unrelated HSCT. Infusions of low dose memory T-lymphocytes after transplant engraftment are safe, potentially effective and constitute a simple measure to prevent infections in the setting of alpha/beta T-cell-depleted transplantation.

About the authors

S. L. Blagov

Dmitriy Rogachev National Medical Research Center of Pediatric Hematology, Oncology, Immunology

Author for correspondence.
Email: sblagov89@gmail.com
ORCID iD: 0000-0001-8754-1376

MD, Department of optimization treatment and prevention of complications of hematopoietic stem cell transplantation

Russia 117997, Moscow, Samory Mashela st., 1

Russian Federation

L. N. Shelikhova

Dmitriy Rogachev National Medical Research Center of Pediatric Hematology, Oncology, Immunology

ORCID iD: 0000-0003-0520-5630

E. Y. Osipova

Dmitriy Rogachev National Medical Research Center of Pediatric Hematology, Oncology, Immunology

ORCID iD: 0000-0002-1873-3486

V. V. Kiseleva

Dmitriy Rogachev National Medical Research Center of Pediatric Hematology, Oncology, Immunology

ORCID iD: 0000-0002-3001-4820

A. S. Kazachenok

Dmitriy Rogachev National Medical Research Center of Pediatric Hematology, Oncology, Immunology

ORCID iD: 0000-0003-0497-9175

Z. B. Shekhovtsova

Dmitriy Rogachev National Medical Research Center of Pediatric Hematology, Oncology, Immunology

ORCID iD: 0000-0002-9912-6572

A. A. Bogoyavlenskaya

Dmitriy Rogachev National Medical Research Center of Pediatric Hematology, Oncology, Immunology

ORCID iD: 0000-0002-9282-6883

G. A. Novichkova

Dmitriy Rogachev National Medical Research Center of Pediatric Hematology, Oncology, Immunology

ORCID iD: 0000-0003-4911-0553

A. A. Maschan

Dmitriy Rogachev National Medical Research Center of Pediatric Hematology, Oncology, Immunology

ORCID iD: 0000-0002-0016-6698

M. A. Maschan

Dmitriy Rogachev National Medical Research Center of Pediatric Hematology, Oncology, Immunology

ORCID iD: 0000-0003-1735-0093

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Copyright (c) 1970 Blagov S.L., Shelikhova L.N., Osipova E.Y., Kiseleva V.V., Kazachenok A.S., Shekhovtsova Z.B., Bogoyavlenskaya A.A., Novichkova G.A., Maschan A.A., Maschan M.A.

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