title: [Effects of Phytolacca acinosa polysaccharides II on lymphocyte proliferation and colony stimulating factor production from mice splenocytes in vitro].
abstract: Phytolacca acinosa polysaccharides II (PAP-II), a kind of polysaccharides isolated from Phytolacca acinosa Roxb with MW 40 kDa, on lymphocyte proliferation and colony stimulating factor (CSF) production from splenocytes in vitro, was studied. The radioactivities of [3H] TdR uptake by lymphocyte and bone marrow cells were used to determine the ability of lymphocyte proliferation and CSF production respectively. PAP-II was found to significantly augment splenocyte proliferation in a dose-dependent fashion, and significantly enhance Con A (1, 2.8 micrograms.ml-1) and LPS (3, 10, 30 micrograms.ml-1) induced lymphocyte proliferation at concentration of 31-125 micrograms.ml-1. As the concentration of PAP-II increased, significant suppression of Con A-induced lymphocyte proliferation was observed. Induction of CSF by PAP-II from splenocyte was confirmed at the present study. The optimal dosage was 100 micrograms.ml-1 and the optimal effect occurred on day 5. These results suggest that PAP-II can augment immunological function and enhance hematopoiesis.
authors.affiliation: Department of Pharmacology, College of Pharmacy, Second Military Medical University, Shanghai.
authors.forename: H B
authors.initials: HB
authors.lastname: Wang
authors.forename: Q Y
authors.initials: QY
authors.lastname: Zheng
authors.forename: D W
authors.initials: DW
authors.lastname: Ju
authors.forename: J
authors.initials: J
authors.lastname: Fang
mesh_terms: D000818:Animals; D002455:Cell Division / Q000187:drug effects; D003115:Colony-Stimulating Factors / Q000096:biosynthesis*; D003208:Concanavalin A / Q000494:pharmacology; D004365:Drugs, Chinese Herbal / Q000737:chemistry; D005260:Female; D008070:Lipopolysaccharides / Q000494:pharmacology; D008214:Lymphocytes / Q000166:cytology*; D008297:Male; D051379:Mice; D008807:Mice, Inbred BALB C; D011134:Polysaccharides / Q000494:pharmacology*; D013154:Spleen / Q000166:cytology
chemical_list: D003115:Colony-Stimulating Factors; D004365:Drugs, Chinese Herbal; D008070:Lipopolysaccharides; D011134:Polysaccharides; D003208:Concanavalin A