In vivo persistence of donor cells following adoptive transfer of allogeneic dendritic cells in HIV-infected patients.

Abstract:

:Peripheral blood samples from HIV-seropositive individuals enrolled in a pilot clinical trial investigating the use of allogeneic dendritic cell therapy were evaluated for mixed chimerism. In this study, dendritic cells from HLA-identical, HIV-seronegative siblings were used. Patients received an infusion of dendritic cells pulsed with HIV MN gp160 protein or with peptides from HLA-A2 restricted epitopes of env, gag, and pol proteins every month for 6-9 months. Of the five allogeneic dendritic cell recipients, two showed increases in HIV antigen-specific immune responses. Allele-specific polymorphisms were identified in three sib-pairs that allowed infused donor cells to be detected using sensitive PCR-based molecular methods. Analysis of blood samples from patients showed similar patterns of donor cell persistence after the first infusion, in that cells were detectable for at least 1 week. Also, differences were observed in the kinetics of cell survival between the first and subsequent infusion cycles in all three patients. This suggests variation in HIV-specific immune responses detected among these three patients was not due to differences in persistence of infused donor cells.

journal_name

Cell Transplant

journal_title

Cell transplantation

authors

Shapero MH,Kundu SK,Engleman E,Laus R,van Schooten WC,Merigan TC

subject

Has Abstract

pub_date

2000-05-01 00:00:00

pages

307-17

issue

3

eissn

0963-6897

issn

1555-3892

journal_volume

9

pub_type

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