has_participant has participant negative regulation of cell population proliferation downregulation of cell proliferation inhibition of cell proliferation Any process that stops, prevents or reduces the rate or extent of cell proliferation. GO:0008285 down-regulation of cell proliferation negative regulation of cell proliferation biological_process down regulation of cell proliferation regulation of cell population proliferation negative regulation of cellular process Fungi high affinity nerve growth factor receptor (human) macrophage colony-stimulating factor 1 receptor (human) tyrosine-protein kinase Lyn (human) fibroblast growth factor 2 (human) androgen receptor (human) D(2) dopamine receptor (human) adenosine receptor A2a (human) alpha-1A adrenergic receptor (human) mu-type opioid receptor (human) tyrosine-protein kinase CSK (human) tyrosine-protein kinase FRK (human) cyclin-dependent kinase 6 (human) dual specificity mitogen-activated protein kinase kinase 1 (human) epithelial discoidin domain-containing receptor 1 (human)