지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.4
- 수록면
- 129 - 136 (8page)
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초록· 키워드
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BACKGROUND/OBJECTIVES: A variety of immunomodulators can improve the efficacy of low-dose chemotherapeutics. Active hexose correlated compound (AHCC), a mushroom mycelia extract, has been shown to be a strong immunomodulator. Whether AHCC could enhance the antitumor effect of low-dose 5-fluorouracil (5-FU) via regulation of host immunity is unknown.
MATERIALS/METHODS: In the current study Hepatoma 22 (H22) tumor-bearing mice were treated with PBS, 5-FU (10 mg?kg<SUP>-1</SUP>?d<SUP>-1</SUP>, i.p), or AHCC (360 mg?kg<SUP>-1</SUP>?d<SUP>-1</SUP>, i.g) plus 5-FU, respectively, for 5 d. CD3<SUP>+</SUP>, CD4<SUP>+</SUP>, CD8<SUP>+</SUP>, and NK in peripheral blood were detected by flow cytometry. ALT, AST, BUN, and Cr levels were measured by biochemical assay. IL-2 and TNFα in serum were measured using the RIA kit and apoptosis of tumor was detected by TUNEL staining. Bax, Bcl-2, and TS protein levels were measured by immunohistochemical staining and mRNA level was evaluated by RT-PCR.
RESULTS: Diet consumption and body weight showed that AHCC had no apparent toxicity. AHCC could reverse liver injury and myelosuppression induced by 5-FU (P < 0.05). Compared to mice treated with 5-FU, mice treated with AHCC plus 5-FU had higher thymus index, percentages of CD3<SUP>+</SUP>, CD4<SUP>+</SUP>, and NK cells (P < 0.01), and ratio of CD4<SUP>+</SUP>/CD8<SUP>+</SUP> (P < 0.01) in peripheral blood. Radioimmunoassay showed that mice treated with AHCC plus 5-FU had the highest serum levels of IL-2 and TNFα compared with the vehicle group and 5-FU group. More importantly, the combination of AHCC and 5-FU produced a more potent antitumor effect (P < 0.05) and caused more severe apoptosis in tumor tissue (P < 0.05) compared with the 5-FU group. In addition, the combination of AHCC and 5-FU further up-regulated the expression of Bcl-2 associated X protein (Bax) (P< 0.01), while it down-regulated the expression of B cell lymphoma 2 (Bcl-2) (P < 0.01).
CONCLUSIONS: These results support the claim that AHCC might be beneficial for cancer patients receiving chemotherapy.
MATERIALS/METHODS: In the current study Hepatoma 22 (H22) tumor-bearing mice were treated with PBS, 5-FU (10 mg?kg<SUP>-1</SUP>?d<SUP>-1</SUP>, i.p), or AHCC (360 mg?kg<SUP>-1</SUP>?d<SUP>-1</SUP>, i.g) plus 5-FU, respectively, for 5 d. CD3<SUP>+</SUP>, CD4<SUP>+</SUP>, CD8<SUP>+</SUP>, and NK in peripheral blood were detected by flow cytometry. ALT, AST, BUN, and Cr levels were measured by biochemical assay. IL-2 and TNFα in serum were measured using the RIA kit and apoptosis of tumor was detected by TUNEL staining. Bax, Bcl-2, and TS protein levels were measured by immunohistochemical staining and mRNA level was evaluated by RT-PCR.
RESULTS: Diet consumption and body weight showed that AHCC had no apparent toxicity. AHCC could reverse liver injury and myelosuppression induced by 5-FU (P < 0.05). Compared to mice treated with 5-FU, mice treated with AHCC plus 5-FU had higher thymus index, percentages of CD3<SUP>+</SUP>, CD4<SUP>+</SUP>, and NK cells (P < 0.01), and ratio of CD4<SUP>+</SUP>/CD8<SUP>+</SUP> (P < 0.01) in peripheral blood. Radioimmunoassay showed that mice treated with AHCC plus 5-FU had the highest serum levels of IL-2 and TNFα compared with the vehicle group and 5-FU group. More importantly, the combination of AHCC and 5-FU produced a more potent antitumor effect (P < 0.05) and caused more severe apoptosis in tumor tissue (P < 0.05) compared with the 5-FU group. In addition, the combination of AHCC and 5-FU further up-regulated the expression of Bcl-2 associated X protein (Bax) (P< 0.01), while it down-regulated the expression of B cell lymphoma 2 (Bcl-2) (P < 0.01).
CONCLUSIONS: These results support the claim that AHCC might be beneficial for cancer patients receiving chemotherapy.
목차
INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
REFERENCES
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UCI(KEPA) : I410-ECN-0101-2016-594-001318963