Modifiers matching peptide:

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

Simple categories matching anticancer:

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