Which gene's amplification is associated with aggressive breast cancers?

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Multiple Choice

Which gene's amplification is associated with aggressive breast cancers?

Explanation:
Amplification of the HER2 gene drives aggressive breast cancers because it causes overproduction of the HER2 receptor on tumor cells, boosting signaling that promotes rapid growth and survival. This heightened signaling leads to more rapid proliferation, higher tumor grade, and a greater risk of early relapse, making the disease behave more aggressively. Historically, HER2-positive breast cancers were linked to poorer prognosis until targeted therapies like trastuzumab improved outcomes. Other listed genes can play roles in cancer, but HER2 amplification is the clearest driver of the aggressive breast cancer phenotype.

Amplification of the HER2 gene drives aggressive breast cancers because it causes overproduction of the HER2 receptor on tumor cells, boosting signaling that promotes rapid growth and survival. This heightened signaling leads to more rapid proliferation, higher tumor grade, and a greater risk of early relapse, making the disease behave more aggressively. Historically, HER2-positive breast cancers were linked to poorer prognosis until targeted therapies like trastuzumab improved outcomes. Other listed genes can play roles in cancer, but HER2 amplification is the clearest driver of the aggressive breast cancer phenotype.

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