Modifiers matching peptide:

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

Simple categories matching anticancer:

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