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The inflammatory response induced by spike protein of SARS-CoV2 in HCECs. (A–F) mRNA expression of various inflammatory cytokines, including TNF-α (A), IL-6 (B), MCP-1 (C), iNOS (D), IL-8 (E), and IL-1β (F) in HCEC cells treated with 1 µg/mL spike protein detected by RT-PCR. Values are mean ± SD from at least three independent experiments. *P < 0.5; **P < 0.1; ***P < 0.001 versus control group using the t-test.
