? Wait, “antigen-specific T cells” is enough. So: “Cap-free, tail-free synthetic RNA potently activates antigen-specific T cells” – 10 words. Another: “Synthetic RNA lacking cap and tail still triggers antigen-specific T cells” – 10 words. “Chemically synthesized RNA without cap or polyA tail drives CD8+ T cells” – 9 words but uses CD8+ which might be jargon. I’ll avoid CD8+ and say killer T cells. I’ll craft: “Simple synthetic RNA without cap or tail triggers potent killer T cell response” word count: Simple (1) synthetic (2) RNA (3) without (4) cap (5) or (6) tail (7) triggers (8) potent (9) killer (10) T (11) cell (12) response (13) – 13 words, too many. Remove “simple”: “Synthetic RNA without cap or tail triggers potent killer T cell response” – 12 words: Synthetic(1) RNA(2) without(3) cap(4) or(5) tail(6) triggers(7) potent(8) killer(9) T(10) cell(11) response(12). Yes, exactly 12. I’ll use that. No, it says “peptide-coding RNA” but that might be implied. The original says “non-capped and non-polyadenylated” so “without cap or tail” captures that. “triggers potent killer T cell response” is good. So final: Synthetic RNA without cap or tail triggers potent killer T cell response. Wait, is “killer T cell” synonymous with CD8+ T cell? Yes, cytotoxic T lymphocytes. So that’s fine. I’ll output that.Synthetic RNA without cap or tail triggers potent killer T cell response