CAFs-released exosomal CREB1 promotes cell progression and immune evasion in thyroid cancer via the positive regulation of CCL20. Chen Zheng Hu Hei Yifei Zhai Wenbo Gong Runfang Zhang Songtao Zhang Department of Thyroid Head and Neck Surgery, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China