[Retroviral-mediated transfection of hepatitis B virus core gene into bone marrow-derived dendritic cells]

[Retroviral-mediated transfection of hepatitis B virus core gene into bone marrow-derived dendritic cells] Research Abstract Details 

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[Retroviral-mediated transfection of hepatitis B virus core gene into bone marrow-derived dendritic cells] Abstract Text:

Chuan-Lin Ding,Kun Yao,Tian-Tai Zhang,Guang-Yong Peng,

AIM: To evaluate the transfection efficiency of recombinant retrovirus vector bearing hepatitis B virus(HBV) core gene to bone marrow-derived dendritic cells(DCs) and the capability of these DCs to induce cytotoxic T lymphocyte(CTL) response. METHODS: C57BL/6 mice bone marrow cells were stimulated with recombinant mouse granulocyte-macrophage colony-stimulating factor(rmGM-CSF) and interleukin-4(rmIL-4) for 6 days. Expanding DC progenitors were transfected by retrovirus vector containing HBV core gene. Integration and transcription of HBV core gene were determined by PCR and RT-PCR, respectively. Expression of HBcAg was analyzed by fluorescence activated cell sorter (FACS) and Western blot. Cytokines were quantified by enzyme immunoassay. The expressions of CD80 and MHC class II molecules on DCs were measured by FACS. Generation of CTLs in mixed leukocyte reaction were determined by LDH release assays. RESULTS: Transfected bone marrow cells were capable of differentiating into DCs in-vitro at the presence of rmGM-CSF and rmIL-4. The result of PCR and RT-PCR showed that the HBV core gene was integrated into the genome of infected DCs. Western blot analysis showed that HBV core gene was expressed in DCs. Transfection rate was 28% determined by FACS. Retroviral transfection had no influence on expressions of CD80 and MHC class II molecules, as well as IL-12 production. HBcAg-specific CTLs could be generated by using transfected DCs as antigen presenting cell (APC). CONCLUSION: Retroviral transfected myeloid DC progenitors could efficiently express HBcAg, without significant change on development and function of DCs, which lays a solid foundation for immunotherapy of chronic hepatitis B.

[Retroviral-mediated transfection of hepatitis B virus core gene into bone marrow-derived dendritic cells] Publishing Authors By Initials

CL Ding,K Yao,TT Zhang,GY Peng,

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[Retroviral-mediated transfection of hepatitis B virus core gene into bone marrow-derived dendritic cells] Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Xi bao yu fen zi mian yi xue za zhi = Chinese jour

VOLUME: 19

Page Numbers: 299-301

Journal Abbreviation: Xi Bao Yu Fen Zi Mian Yi Xue Z

ISSN: 1007-8738

DAY: 24

MONTH: May

YEAR: 2003

[Retroviral-mediated transfection of hepatitis B virus core gene into bone marrow-derived dendritic cells] Information

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LANGUAGE: chi

NlmUniqueID: 101139110

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AFFILIATION: Department of Immunology and Microbiology, Nanjing Medical University, Nanjing 210029, China.

Country: China

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MEDLINETA: Xi Bao Yu Fen Zi Mian Yi Xue Z

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