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首页> 外文期刊>Cytokine >Study of cytokines involved in the prevention of a murine experimental breast cancer by kefir.
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Study of cytokines involved in the prevention of a murine experimental breast cancer by kefir.

机译:研究通过开菲尔预防鼠实验性乳腺癌的细胞因子。

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Previous studies have shown that compounds released during milk fermentation by Lactobacillus helveticus are implicated in the antitumour effect of this product. Here the effects of the consumption, during 2 or 7 days, of kefir or kefir cell-free fraction (KF) on the systemic and local immune responses in mammary glands and tumours using a murine hormone-dependent breast cancer model were studied. In the tumour control group, mice did not receive these products. At the end of the feeding period, mice were injected subcutaneously with tumour cells in the mammary gland. Four days post-injection, they received kefir or KF on a cyclical basis. Rate of tumour development, cytokines in serum; mammary gland tissue, and tumour isolated cells were monitored. Two-day cyclical administration of both products delayed tumour growth. Both kefir and KF increased IL-10 in serum and decreased IL-6(+) cells (cytokine involved in oestrogen synthesis) in mammary glands. Two-day cyclical administration of KF increased IL-10(+) cells in mammary glands and in tumours and decreased IL-6(+) cells in tumour. This study demonstrated the modulatory capacity of KF on the immune response in mammary glands and tumours and the importance of the administration period to obtain this effect.
机译:先前的研究表明,瑞士乳杆菌在牛奶发酵过程中释放的化合物与该产品的抗肿瘤作用有关。在这里,使用鼠类激素依赖性乳腺癌模型研究了开菲尔或开菲尔无细胞组分(KF)在2或7天的摄入对乳腺和肿瘤的全身和局部免疫反应的影响。在肿瘤对照组中,小鼠没有接受这些产物。在喂养期结束时,给小鼠皮下注射乳腺中的肿瘤细胞。注射后四天,他们定期接受开非尔或KF。肿瘤发生率,血清中的细胞因子;乳腺组织,并监测肿瘤分离的细胞。两种产品的两天周期给药延迟了肿瘤的生长。开菲尔(Kefir)和KF均在乳腺中增加血清IL-10和减少IL-6(+)细胞(参与雌激素合成的细胞因子)。 KF的两天周期给药增加了乳腺和肿瘤中的IL-10(+)细胞,并减少了肿瘤中的IL-6(+)细胞。这项研究证明了KF对乳腺和肿瘤免疫反应的调节能力以及给药期对获得这种作用的重要性。

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