广义的神经营养因子 ,除了ＮＧＦ家族外 ,还有ＣＮＴＦ相关因子家族、多种生长因子（ＰＤＧＦ、ＥＧＦ、ＩＧＦ、ＴＧＦ、ＦＧＦｓ等）、白介素等。它们在神经系统的发生、发育过程中起着重要作用 ,可促进神经细胞的存活、增殖、分化及功能表达。它们广泛分布于神经组织和周围 Generalized neurotrophic factors, in addition to the NGF family, there are CNTF-related factor family, a variety of growth factors (such as EGF, IGF, TGF, FGFs, etc.), interleukin and so on. They play an important role in the occurrence and development of the nervous system, which can promote the survival, proliferation, differentiation and functional expression of nerve cells. They are widely distributed in and around neural tissues