human synovial fibroblast cell lines ( hsn ) , established from tissues obtained from the knee joints of arthritis patients undergoing arthoplasty , were used to investigate the effects of human interleukin-1 ( il-1 ) beta and tumour necrosis factor ( tnf ) alpha on proliferation and prostaglandin e2 ( pge2 ) secretion .
C0086418
human
C0021753
interleukin-1