CAV1 and benign muscle neoplasm: In contrast, we found that CAV1 expression was higher in the TME-like myoma than in HSC-3 cells in the monoculture assays, and we therefore inferred that CAV1 was exported from the HSC-3 cells into the TME and assumed that this was performed through the exosomal route, which will be further described in the monolayer assays.