Abstract
Cervical cancer (CC) is one of the most common gynecological malignancies, and metastasis limits the use of surgical resection. Metapristone (MIF) was reported to suppress the proliferation and migration of several cancer cells. Exosomes play a variety of roles in cellular biological processes. The relation of exosomes and CC is less studied. Cell viability, apoptosis assay and migration assay was conducted in HeLa cells treated by MIF by CCK-8 kit, staining by Annexin V-fluorescein isothiocyanate and propidium iodide, and wound test respectively. ISG15 expression level was examined in MIF-treated HeLa cells by Western blot. The migration of HeLa cells treated by MIF/GW4869 was measured by wound test. MIF suppressed the growth and migration, as well as induced apoptosis of CC cells. MIF inhibited the exocrine secretion of CC cells by upregulating ISG15, while treating CC cells by ISG15 stimulus, IFN, inhibited the secretion of exosomes. The inhibition of exocrine secretion by GW4869 enhanced the migration inhibition of MIF on CC cells. This study demonstrates that MIF suppresses the CC cell migration by inhibiting exocrine secretion through upregulating ISG1.
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