Modifiers matching peptide:

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

Simple categories matching anticancer:

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