What effect might an injection of RGD peptide have on tumor cells moving through the blood/lymph system?
A)block cell attachment to new tissue and therefore prevent metastasis
B)encourage clumping of cancer cells for removal by the immune system
C)promote tumor cell binding to platelets and potentially lead to a fatal clot
D)block integrin-mediated cell cycle progression

Question

Quizplus · Accepted Answer

RGD peptide is known to block cell attachment to new tissue by binding to integrin receptors on the surface of cells. Since tumor cells rely on integrin-mediated adhesion to spread and metastasize, injection of RGD peptide can prevent their attachment to new tissues and thereby prevent metastasis. Therefore, choice A is the best option. Choices B and C are not supported by any evidence, and choice D is not directly related to cell attachment or metastasis.

What Effect Might an Injection of RGD Peptide Have on Tumor