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- W2019761593 abstract "The present work reports the modulation of immunocompetent cell functions by two aza alkyl phospholipids (AAP), BN 52205 and BN 52211. Each compound was compared with 1-O-octadecyl-2-O-rac-glycero-3-phosphocholine (ET-18-OCH3) and/or three drugs used for cancer treatment, i.e. cisplatyl (CIS), 5-fluorouracil (5-FU) and cytosine arabinoside (ARA-C). Interleukin (IL)-1 release from P388D1 cells was increased 2-fold in the presence of 5 micrograms/ml BN 52205 or BN 52211. However, these stimulations were lower than those obtained with ARA-C, 5-FU and CIS. Compared with ET-18-OCH3, CIS and 5-FU, BN 52205 and BN 52211 were more efficient in increasing tumor necrosis factor production induced by lipopolysaccharide (LPS) from human monocytes. In vitro, all compounds exhibited similar activity in enhancing IL-6 production from human monocytes stimulated with LPS, with the exception of 5-FU and CIS that were inactive. At 20 mg/kg (i.v.), a peak of IL-6 production was reached 2 h after injection of ET-18-OCH3 [> 1280 U/ml (n = 4, p < 0.001) versus 3.5 +/- 0.2 U/ml (n = 7)], whereas BN 52211 induced a maximum of IL-6 production after 4 h (77 +/- 27 U/ml, n = 5, p < 0.001). BN 52205 induced peaks of IL-6 production after 3 and 6 h (90 +/- 62 and 68 +/- 35 U/ml, respectively, p < 0.001, n = 4). The proliferation of rat splenocytes was abolished in the presence of BN 52205 and BN 52211 at 10 micrograms/ml, corresponding to only a partial reduction of IL-2 production at the same concentration. The production of interferon-gamma was stimulated 6- to 10-fold in the presence of 1-5 micrograms/ml BN 52205, BN 52211 and ARA-C. BN 52211 and BN 52205 were also potent enhancers of IL-3 production, whereas 5-FU and ARA-C were inhibitory. These results indicate that in addition to a direct antitumoral effect, AAP may also exhibit immunomodulatory activity both in vitro and in vivo." @default.
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- W2019761593 date "1992-12-01" @default.
- W2019761593 modified "2023-10-17" @default.
- W2019761593 title "Immunomodulatory activity of two new aza alkyl phospholipid antineoplastic drugs" @default.
- W2019761593 doi "https://doi.org/10.1097/00001813-199212000-00007" @default.
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