Editing Cancer Pharmacology (section)

== <span style="color: #FFFFFF;">Analyzing</span> ==
{| class="wikitable"
|+ Chemo vs. Targeted vs. Immuno
! Feature !! Chemotherapy !! Targeted Therapy !! Immunotherapy
|-
| Target || "Any" dividing cell || A specific "Broken Protein" || The "Immune System"
|-
| Side Effects || High (Hair, Nausea) || Low to Moderate || "Auto-immune" (Rashes, Inflammation)
|-
| Success Duration || Often temporary (Resistance) || Can be long, but limited || Can lead to "Permanent Cure"
|-
| Analogy || A 'Sledgehammer' || A 'Precision Missile' || 'Training a Guard Dog'
|}

'''The Concept of "Clonal Evolution"''': Analyzing why cancer "Comes back." A tumor is not "One thing"—it is a "Jungle" of billions of cells. When you use a drug, you kill 99% of them. But 1% might have a "Mutation" that makes them "Immune" to the drug. These "Super-cells" then "Re-grow" the tumor, and the drug never works again. This is why "Combination Therapy" (using 3 drugs at once) is the standard.
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