Modifiers matching leukocyte:

• inflammatory,
• granular,
• specialized,
• phagocytic,
• normal,
• isolated,
• mammalian,
• larger,
• proinflammatory,
• mature,

Simple categories matching proinflammatory:

• substance,
• peptide,
• cell,
• compound,
• cytokine,
• response,
• leukocyte,
• property,
• activity,
• neurotransmitter,
• protein,
• molecule,
• agent,