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Increased regulatory T cells correlate with CD8 T-cell impairment and poor survival in hepatocellular carcinoma patients.
Gastroenterology. 2007 Jun; 132(7):2328-39.G

Abstract

BACKGROUND & AIMS

Recent studies have suggested that CD4(+)CD25(+) regulatory T cells (Treg) are increased and linked to compromised immune responses in patients with hepatocellular carcinoma (HCC). This study attempted to further characterize CD4(+)CD25(+) forkhead/winged helix transcription factor (FoxP3)(+) Treg in blood, tumor, and nontumor liver tissues of HCC patients, and to understand how the Treg affects immune responses and contributes to disease progression.

METHODS

A total of 123 HCC patients with chronic hepatitis B virus (HBV) infection, 21 HBV-related liver cirrhosis (LC) patients, and 47 normal controls were enrolled randomly. Flow cytometric, immunohistochemical, and immunosuppressive assays were used for analyses of properties of Treg. Multivariate analysis of prognostic factors for overall survival was performed using the Cox proportional hazards model.

RESULTS

Circulating CD4(+)CD25(+)FoxP3(+) Treg frequency was increased significantly and correlated with disease progression in HCC patients. An abundant accumulation of Treg concurrent with significantly reduced infiltration of CD8(+) T cells was found in tumor regions compared with nontumor regions. Expression of granzyme A, granzyme B, and perforin was decreased dramatically in tumor-infiltrating CD8(+) T cells. Furthermore, Treg of HCC patients inhibited proliferation, activation, degranulation, and production of granzyme A, granzyme B, and perforin of CD8(+) T cells induced by anti-CD3/CD28 antibodies. Importantly, an increased quantity of circulating Treg was associated with high mortality and reduced survival time of HCC patients.

CONCLUSIONS

Increased CD4(+)CD25(+)FoxP3(+) Treg may impair the effector function of CD8(+) T cells, promote disease progression, and represent both a potential prognostic marker and a therapeutic target for HBV-related HCC individuals.

Authors+Show Affiliations

Research Center for Biological Therapy, Beijing Institute of Infectious Diseases, Beijing 302 Hospital, Beijing, China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17570208

Citation

Fu, Junliang, et al. "Increased Regulatory T Cells Correlate With CD8 T-cell Impairment and Poor Survival in Hepatocellular Carcinoma Patients." Gastroenterology, vol. 132, no. 7, 2007, pp. 2328-39.
Fu J, Xu D, Liu Z, et al. Increased regulatory T cells correlate with CD8 T-cell impairment and poor survival in hepatocellular carcinoma patients. Gastroenterology. 2007;132(7):2328-39.
Fu, J., Xu, D., Liu, Z., Shi, M., Zhao, P., Fu, B., Zhang, Z., Yang, H., Zhang, H., Zhou, C., Yao, J., Jin, L., Wang, H., Yang, Y., Fu, Y. X., & Wang, F. S. (2007). Increased regulatory T cells correlate with CD8 T-cell impairment and poor survival in hepatocellular carcinoma patients. Gastroenterology, 132(7), 2328-39.
Fu J, et al. Increased Regulatory T Cells Correlate With CD8 T-cell Impairment and Poor Survival in Hepatocellular Carcinoma Patients. Gastroenterology. 2007;132(7):2328-39. PubMed PMID: 17570208.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Increased regulatory T cells correlate with CD8 T-cell impairment and poor survival in hepatocellular carcinoma patients. AU - Fu,Junliang, AU - Xu,Dongping, AU - Liu,Zhenwen, AU - Shi,Ming, AU - Zhao,Ping, AU - Fu,Baoyun, AU - Zhang,Zheng, AU - Yang,Huiyin, AU - Zhang,Hui, AU - Zhou,Chunbao, AU - Yao,Jinxia, AU - Jin,Lei, AU - Wang,Huifen, AU - Yang,Yongping, AU - Fu,Yang-Xing, AU - Wang,Fu-Sheng, Y1 - 2007/04/14/ PY - 2006/10/19/received PY - 2007/03/15/accepted PY - 2007/6/16/pubmed PY - 2007/7/25/medline PY - 2007/6/16/entrez SP - 2328 EP - 39 JF - Gastroenterology JO - Gastroenterology VL - 132 IS - 7 N2 - BACKGROUND & AIMS: Recent studies have suggested that CD4(+)CD25(+) regulatory T cells (Treg) are increased and linked to compromised immune responses in patients with hepatocellular carcinoma (HCC). This study attempted to further characterize CD4(+)CD25(+) forkhead/winged helix transcription factor (FoxP3)(+) Treg in blood, tumor, and nontumor liver tissues of HCC patients, and to understand how the Treg affects immune responses and contributes to disease progression. METHODS: A total of 123 HCC patients with chronic hepatitis B virus (HBV) infection, 21 HBV-related liver cirrhosis (LC) patients, and 47 normal controls were enrolled randomly. Flow cytometric, immunohistochemical, and immunosuppressive assays were used for analyses of properties of Treg. Multivariate analysis of prognostic factors for overall survival was performed using the Cox proportional hazards model. RESULTS: Circulating CD4(+)CD25(+)FoxP3(+) Treg frequency was increased significantly and correlated with disease progression in HCC patients. An abundant accumulation of Treg concurrent with significantly reduced infiltration of CD8(+) T cells was found in tumor regions compared with nontumor regions. Expression of granzyme A, granzyme B, and perforin was decreased dramatically in tumor-infiltrating CD8(+) T cells. Furthermore, Treg of HCC patients inhibited proliferation, activation, degranulation, and production of granzyme A, granzyme B, and perforin of CD8(+) T cells induced by anti-CD3/CD28 antibodies. Importantly, an increased quantity of circulating Treg was associated with high mortality and reduced survival time of HCC patients. CONCLUSIONS: Increased CD4(+)CD25(+)FoxP3(+) Treg may impair the effector function of CD8(+) T cells, promote disease progression, and represent both a potential prognostic marker and a therapeutic target for HBV-related HCC individuals. SN - 0016-5085 UR - https://www.unboundmedicine.com/medline/citation/17570208/Increased_regulatory_T_cells_correlate_with_CD8_T_cell_impairment_and_poor_survival_in_hepatocellular_carcinoma_patients_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0016-5085(07)00628-2 DB - PRIME DP - Unbound Medicine ER -