transforming growth factor betas are multifunctional polypeptides in the cytokine superfamily. they have a growth inhibitory role on hemopoietic progenitor cells in semisolid colony assay as well as in long-term bone-marrow culture. tgf - β2 represses stromal cells, stem cell factor gene transcription, and decreases the stability of c-kit transcripts in hemopoietic cells. tgf-β also modulates g...

the purpose of this research was identifying mechanisms for the development of human resources in khouzestan sugarcane agro industrial company, iran. this is an applied study and the research method was descriptive correlative. the population consisted of employees working in the sugarcane agro industrial company in the province of khuzestan, iran(n=315). one hundred and seventy five people wer...