[Up-regulation of transcription factors GATA-1 and GATA-2 induced by Panax notoginosides in hematopoietic cells].

Objective: To observe the role of Panax notoginosides (PNS) in up-regulation of GATA family transcription factors, and explore intracellular signal pathway of PNS in the proliferation of hematopoietic cells.

Methods: Human bone marrow cells were incubated with different concentrations of PNS for colony-forming assay. Human cell lines HL-60, K562, CHRF-288 and Meg-01 were incubated with PNS (10 mg/L) for 14 days.

[Up-regulation of transcription factors NF-E2, c-jun and c-fos of AP-1 family induced by Panax Notoginosides in hematopoietic cells].

To observe the effects of Panax Notoginosides (PNS) on up-regulation of AP-1 family transcription factors NF-E2, c-jun and c-fos for exploring intracellular signal pathway of PNS in hematopoietic cells, four human hematopoietic cells lines including myeloid HL-60, erythroid K562, megakaryoid CHRF-288 and Meg-01 were incubated in the presence of PNS for 14 days. The nuclear protein of cells were extracted and analyzed by Western blot with antibodies against NF-E2, c-fos and c-jun. Electrophoretic mobility shift assay (EMSA) was performed by using (32)P labeled AP-1 consensus oligonucleotide which contains binding site for NF-E2, c-jun and c-fos.

CaMV 35S promoter directs beta-glucuronidase expression in Ganoderma lucidum and Pleurotus citrinopileatus.

The cauliflower mosaic virus (CaMV) 35S promoter has been most commonly used in plant transformation studies, but its activity in mushrooms has not been reported. p301-b is a binary vector containing a bialaphos resistance gene driven by the promoter of Lentinus edodes glyceraldehyde-3-phosphate dehydrogenase (GPD) gene. CaMV 35S-GUS was inserted into p301-b, and the resulting construct p301-bG was transformed to protoplasts of Ganoderma lucidum and basidiospores of Pleurotus citrinopileatus.