Antigen-specific CTLs: to produce autologous cells product for adoptive cellular therapy.
As antiretroviral therapy provides long term viral suppression but no cure, alternative therapies such as adoptive cellular therapy have thus been investigated in the anti-AIDS field.


OBJECTIVE
This study sought to establish a HLA-A02 specific CTL cell culture method with comparison of the effects of different cytokines used in CTL cultivation to decide the best cultivation environment. In order to produce CTLs with targeted HLA-A02 restricted antigen specificity for adoptive cellular therapy, we evaluated autologous PBMC cultivation in different cytokine environment to select a better expansion condition to produce qualified CTL production.


METHODS
We co-cultivated PBMC and peptides of these patients with HLA-A02 allele with different cytokines. After cultivation, multiple parameters were tested.


RESULTS
1) Cytokines IL-2 alone can effectively amplify HLA-A02 specific CTL cells, and the count of CTLs was >85% all through the process. 2) The HLA-A02 specific cells at the end of the cultivation were mainly CD3+CD8+ cells. 3) The interferon stimulation test had shown that the expanded CTLs secreted more IFN-γ than before cultivation (0.9% -11.70%).


CONCLUSIONS
This model of CTL cultivation is successful in redirecting the specificity of antigen recognition and safely for HLA-A02+ patients cell adoptive therapy.
Beijing You'an Hospital, Capital Medical University, Beijing, 100069, China.
Sai
S
Liu
Beijing immunotech applied science limited.
Yi
Y
Shao
Beijing You'an Hospital, Capital Medical University, Beijing, 100069, China.
Jie
J
Xu
Beijing You'an Hospital, Capital Medical University, Beijing, 100069, China.
Na
N
Jiang
Beijing You'an Hospital, Capital Medical University, Beijing, 100069, China.
Yanchao
Y
Dai
Beijing immunotech applied science limited.
Yu
Y
Wang
Beijing You'an Hospital, Capital Medical University, Beijing, 100069, China.
Huanqing
H
Sun
Beijing You'an Hospital, Capital Medical University, Beijing, 100069, China. Electronic address: sun_jp@126.com.
Jianping
J
Sun
Beijing You'an Hospital, Capital Medical University, Beijing, 100069, China. Electronic address: dryonghongzhang@gmail.com.
Yonghong
Y
Zhang
D000328:Adult; D000483:Alleles; D002478:Cells, Cultured; D016207:Cytokines / Q000276:immunology; D005260:Female; D015789:HLA-A2 Antigen / Q000276:immunology; D006801:Humans; D016219:Immunotherapy, Adoptive / Q000379:methods*; D007963:Leukocytes, Mononuclear / Q000276:immunology; D008297:Male; D008875:Middle Aged; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology*
D016207:Cytokines; D015789:HLA-A2 Antigen
CTL; HLA-A02; cell adoptive immunotherapy