Cistanche deserticola, known for its extensive history in Traditional Chinese Medicine (TCM), is valued for its therapeutic properties. Recent studies have identified its anticancer capabilities, yet the mechanisms underlying these properties remain to be fully elucidated. In this study, we determined that a mixture of four cistanche-derived phenylethanoid glycosides (CPhGs), echinacoside, acteoside, 2-acetylacteoside, and cistanoside A, which are among the main bioactive compounds in C. deserticola, eliminated T-cell lymphoma (TCL) cells by inducing apoptosis and pyroptosis in vitro and attenuated tumor growth in vivo in a xenograft mouse model. At the molecular level, these CPhGs elevated P53 by inhibiting the SIRT2-MDM2/P300 and PI3K/AKT carcinogenic axes and activating PTEN-Bax tumor-suppressing signaling. Moreover, CPhGs activated noncanonical and alternative pathways to trigger pyroptosis. Interestingly, CPhGs did not activate canonical NLRP3-caspase-1 pyroptotic signaling pathway; instead, CPhGs suppressed the inflammasome factor NLRP3 and the maturation of IL-1β. Treatment with a caspase-1/4 inhibitor and silencing of Gasdermin D (GSDMD) or Gasdermin E (GSDME) partially rescued CPhG-induced cell death. Conversely, forced expression of NLRP3 restored cell proliferation. In summary, our results indicate that CPhGs modulate multiple signaling pathways to achieve their anticancer properties and perform dual roles in pyroptosis and NLRP3-driven proliferation. This study offers experimental support for the potential application of CPhGs in the treatment of TCL.

Estrogen is used for endometrial repair; however, it has limited effectiveness. Cytokine S100A8 expression is affected by estrogen and is involved in regulating the damage repair. We aimed to confirm the effects of S100A8 and explore its mechanisms during the reconstruction of the injured endometrium. We investigated the effects of estrogen on S100A8 expression in healthy endometrium. A rat model of endometrial injury and cultured primary endometrial cells were used to determine the pleiotropic effects of S100A8 on endometrial epithelial repair. Estrogen regulated the recruitment of S100A8-positive immune cells (S100A8-PICs) and the release of S100A8 in the healthy endometrium, but estrogen plays a limited role in regulating seriously injured endometrium via self-S100A8. S100A8 administration to the uterine cavity significantly improved the morphology of injured epithelium; influenced the reverse migration of S100A8-PICs; and promoted epithelial localization of proliferating cells, cell junction formation, and transformation of stromal cells to epithelial cells. S100A8 in the uterine cavity has pleiotropic effects that improve endometrial epithelial reconstruction and can compensate for the deficiency in estrogen repair regulation.