melanoblast


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melanoblast

 [mel´ah-no-blast″]
a cell that develops into a melanocyte.

mel·a·no·blast

(mel'ă-nō-blast'),
A cell derived from the neural crest; it migrates to various parts of the body early in embryonic life, and then becomes a mature melanocyte capable of forming melanin.
[melano- + G. blastos, germ, sprout]

melanoblast

/mel·a·no·blast/ (mel´ah-no-blast″) a cell that originates from the neural crest and develops into a melanocyte.

melanoblast

(mĕl′ə-nō-blăst′, mə-lăn′ə-)
n.
A precursor cell of a melanocyte or melanophore.

mel′a·no·blas′tic adj.

melanoblast

[mel′ənōblast′]
Etymology: Gk, melas, black, blastos, germ
an epithelial tissue cell containing black granules. It develops into a melanocyte from the neural crest and migrates to various parts of the body during the early stages of embryonic life before becoming a mature melanocyte capable of forming melanin.

mel·a·no·blast

(mel'ă-nō-blast)
A cell derived from the neural crest, which matures into a melanocyte.
[melano- + G. blastos, germ, sprout]

melanoblast

a cell that develops into a melanocyte.
References in periodicals archive ?
Murray (1993) also maintains that these color patterns can be produced only if gestation lasts long enough and the embryo is large enough for patterns to occur during the migration of melanoblasts.
MITF, a basic helix-loop-helix leucine zipper transcription factor, is located in the center of multiple signaling pathways and acts as a master regulator for differentiation, morphology, proliferation, and survival of melanoblasts, melanocytes, and melanoma.
The developmental basis may be very similar (at least among rodents) to that described and figured by Stoddart (1970) for the laboratory mouse, Mus musculus, where the spreading activation of melanoblasts from pigment centers on the body is halted before reaching the terminus of the tail.
Low-energy helium-neon laser induces locomotion of the immature melanoblasts and promotes melanogenesis of the more differentiated melanoblasts: recapitulation of vitiligo repigmentation in vitro.
Melanomas arise from melanoblasts present in basal layer of epidermis of skin.
A disturbance in metabolism associated with graying might act to stimulate formation of new melanoblasts or stimulate their activity resulting in focal areas of overproduction in dermis with subsequent tumor production (Theilen and Madwell, 1987).
It is postulated that nevus spilus represents a localized defect in neural crest melanoblasts and occurs in fewer than 0.