GFactors, short for growth factors, are proteins that play a crucial role in cell growth, differentiation, and development. They are responsible for enhancing cell proliferation, promoting tissue regeneration, and controlling various physiological and pathological processes. Synonyms for GFactors include cytokines, hormones, chemokines, growth regulators, and mitogens. These molecules interact with specific receptors on cell surfaces and activate signaling pathways, leading to various cellular responses such as survival, migration, and differentiation. GFactors are important in various fields of research, including cancer biology, tissue engineering, and regenerative medicine. Identifying and controlling GFactors can lead to the development of new therapeutics and treatments for a range of diseases and disorders.