To take the scalp of someone else in a dream is to steal their sense of self. Brush Holding a hair brush in a dream symbolizes your appearance and the work you carry out to achieve the image you desire. Dreaming of a paint brush generally indicates the appearance of your home and the work it takes or it'll take to achieve the image you want.
A protein that typically promotes cell division when a growth factor is present on the cell surface. Abnormal ras proteins, caused by genetic mutations, stimulate cell division and proliferation in the absence of a growth factor and facilitate the development of various cancers.
Mutations in the RAS gene family (HRAS, KRAS, and NRAS) have been observed in a variety of cancers (Table 1). They are activating mutations that result in continual signal transduction, stimulating downstream signaling pathways involved in cell growth, proliferation, invasion, and metastasis.