Methods are provided for increasing neuronal differentiation of neuronal stem cells using antibodies that bind lysophosphatidic acid (LPA). Particularly preferred antibodies to LPA are monoclonal antibodies, including humanized monoclonal antibodies to LPA. Such antibodies, and derivatives and variants thereof, can be used in increasing neuronal differentiation, and in treatment and/or prevention of injuries, diseases, or conditions associated with insufficient neuronal differentiation and/or with elevated LPA levels in neural tissues.
