[The in vitro potentiation of LAK cell cytotoxicity in cancer and aids patients induced by F3--a fractionated extract of Astragalus membranaceus].
نویسندگان
چکیده
The in vitro induction of LAK cell activity was studied in cancer and AIDS patients. F3, an immuno-regulatory component of Astragalus membranaceus was shown capable of potentiating the LAK cell inducing activity of rIL-2. The killing activity against Hs294T melanoma cell line of LAK cells induced by 50 U/ml rIL-2 in the presence of F3 (55 micrograms/ml) reached 64% which was comparable to that (60%) induced by 500 u/ml of rIL-2 alone. With F3 plus rIL-2, the effector to target cell ratio could be reduced to one-half in order to obtain an equivalent level of cytotoxicity when rIL-2 was used alone. In some patients, whose peripheral blood lymphocytes were relatively inert to rIL-2, F3 could make them responsive to rIL-2. These results imply that F3 may be useful to potentiate LAK cell activity, reduce the amount of rIL-2 and thus minimize the later's toxic side effects when used in vivo.
منابع مشابه
Kelussia odoratissima potentiates cytotoxic effects of radiation in HeLa cancer cell line
Objective: Cervical cancer is the second most common cause of death from cancer in women throughout the world. The aim of this study was to evaluate the cytotoxic activity of Kelussia odoratissima (K. odoratissima) extract associated with radiotherapy in cervical cancer cells (HeLa cell line).Materials and Methods: Different concentration of the extract (25-500µg/ml) was tested in HeLa cell lin...
متن کاملمقایسهی سایتوتوکسیتی عصارهی آبی واتانولی زعفران (Crocus sativus . L) با داروی Paclitaxelو اثرات سینرژیک آن بر ردهی سلولی سرطان پستان (4T1)
Background and Objective: Breast cancer is the most common cancer among women worldwide. Saffron is one of the most well-known plants as an antioxidant and anticancer. The aim of this study was to assess the impact of saffron on the viability of breast cancer cells and simultaneous interaction effect of Paclitaxel drug. Materials and Methods: In this study, saffron extract (Crocus sativus L.) w...
متن کاملThe effect of aqueous and ethanolic extracts of Sedum album L. on human stomach and breast carcinoma cell lines in vitro
In this study, the cytotoxic effects of aqueous and ethanolic extracts of Sedum album L. on human stomach cancer cell line (AGS) and breast cancer cell line (MCF-7) were evaluated by MTT, BrdU and TUNEL assays. The results demonstrated that both extracts had antiproliferative and apoptotic effects in a dose-dependent manner. The MTT assay data revealed that the AGS cell underwent more cytotoxic...
متن کاملAstragalus membranaceus Extract Attenuates Inflammation and Oxidative Stress in Intestinal Epithelial Cells via NF-κB Activation and Nrf2 Response
Astragalus membranaceus, dried root extract, also known as Astragali radix, is used in traditional Chinese medicine as a tonic remedy. Moreover, it has been reported that Astragalus membranaceus could attenuate intestinal inflammation; however, the underlying mechanism for its anti-inflammatory activity in intestinal epithelial cells (IECs) remains unclear. In this study, we evaluated Astragalu...
متن کاملRetraction Note: Astragalus saponins affect proliferation, invasion and apoptosis of gastric cancer BGC-823 cells
BACKGROUND Astragalus memebranaceus is a traditional Chinese herbal medicine used in treatment of common cold, diarrhea, fatigue, anorexia and cardiac diseases. Recently, there are growing evidences that Astragalus extract may be a potential anti-tumorigenic agent. Some research showed that the total saponins obtained from Astragalus membranaceus possess significant antitumorigenic activity. Ga...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Zhonghua zhong liu za zhi [Chinese journal of oncology]
دوره 16 3 شماره
صفحات -
تاریخ انتشار 1994