Cucumis - Free online translation service
. .



Original text - English - Growth factors versus cytokines

Current statusOriginal text
This text is available in the following languages: EnglishTurkish

Category Explanations - Science

Title
Growth factors versus cytokines
Text to be translated
Submitted by kkaan87
Source language: English

Growth factor is sometimes used interchangeably among scientists with the term cytokine. Historically, cytokines were associated with hematopoietic (blood forming) cells and immune system cells (e.g., lymphocytes and tissue cells from spleen, thymus, and lymph nodes). For the circulatory system and bone marrow in which cells can occur in a liquid suspension and not bound up in solid tissue, it makes sense for them to communicate by soluble, circulating protein molecules. However, as different lines of research converged, it became clear that some of the same signaling proteins the hematopoietic and immune systems used were also being used by all sorts of other cells and tissues, during development and in the mature organism.

While growth factor implies a positive effect on cell division, cytokine is a neutral term with respect to whether a molecule affects proliferation. While some cytokines can be growth factors, such as G-CSF and GM-CSF, others have an inhibitory effect on cell growth or proliferation. Some cytokines, such as Fas ligand are used as "death" signals; they cause target cells to undergo programmed cell death or apoptosis.
Remarks about the translation
bilimsel kelimelerin anlamları çevrilemesede olur vikipedia dan alınmıştır yardım edebilecek olan varsa sevinirm
16 December 2009 01:52