TNF and metabolic dysfunction-associated steatohepatitis: We then evaluated the circulating levels of two chemokines (MCP1, IP10) and two cytokines (IL6, TNFα) which are strongly upregulated in the liver but not in the adipose tissue of NASH patients, in a larger number of patients (10 lean, 17 S0, 24 S3 and 27 NASH patients).