Specific cell immune response mediated by dendritic cells in multiple myeloma patients in vitro

Journal: Zhong Nan Da Xue Xue Bao. Yi Xue Ban = Journal Of Central South University. Medical Sciences
Published:
Abstract

Objective: To explore KM3 multiple myeloma (MM) cell line specific cytotoxic T lymphocyte (CTL) response in vitro mediated by autologous dendritic cells (DCs) aroused by KM3 cells' lysates and acid-eluted peptides.

Methods: Monocytes were isolated from the peripheral blood of healthy individuals and MM patients, and were cultured in serum medium with IL-4, GM-CSF, and TNF-alpha to generate DCs. These DCs were pulsed by KM3 cells' lysates or the acid-eluted peptides, then incubated with autologous T lymphocytes for 3 days to induce KM3 cell antigen specific CTL. MTT assay was performed to examine the specific KM3 cells' lysing ability of CTL.

Results: DCs were generated in peripheral blood monocytes cultured in the serum medium containing GM-CSF, IL-4, and TNF-alpha. Autologous T lymphocytes induced by IL-2 and DCs pulsed with KM3 cells' lysates or the acid-eluted peptides showed strong killing effect on KM3 cells.

Conclusions: The DCs pulsed by KM3 cells' lysates or the acid-eluted peptides incubated with autologous T lymphocytes can induce KM3 cell antigen specific CTL.

Authors
Hui Qi, Jian-kai Shen, Le Xiao, Guang-sen Zhang
Relevant Conditions

Multiple Myeloma