Modifiers matching peptide:

• endogenous,
• active,
• interesting,
• addictive,
• minor,
• psychoactive,
• analgesic,
• antigenic,
• synthetic,
• anticancer,
• foreign,
• proinflammatory,
• natural,

Simple categories matching anticancer:

• therapy,
• modality,
• treatment,
• drug,
• agent,
• compound,
• peptide,