Epithelial-mesenchymal transition (EMT), during which cancer cells lose the epithelial phenotype and gain the mesenchymal phenotype, has been verified to result in tumor migration and invasion. Numerous studies have shown that dysregulation of the Wnt/β-catenin signaling pathway gives rise to EMT, which is characterized by nuclear translocation of β-catenin and E-cadherin suppression. Wnt/β-catenin signaling was confirmed to be affected by microRNAs (miRNAs), several of which are down-or upregulated in metastatic cancer cells, indicating their complex roles in Wnt/β-catenin signaling. In this review, we demonstrated the targets of various miRNAs in altering Wnt/β-catenin signaling to promote or inhibit EMT, which may elucidate the underlying mechanism of EMT regulation by miRNAs and provide evidence for potential therapeutic targets in the treatment of invasive tumors. Contents 1. Introduction 2. EMT and tumor metastasis 3. Wnt/β-catenin signaling pathway and EMT 4. miRNAs target the Wnt/β-catenin signaling pathway to regulate EMT 5. Use of miRNAs to regulate EMT 6. Results and Discussion 7. Conclusion

Improving charge transfer efficiency via vibronic coupling is vital to the performance of semiconducting surface-enhanced Raman spectroscopy (SERS). Previous attempts have focused on defects-based metastable-state assisted band structure matching strategy to enhance vibronic coupling. However, defect-related charge transfer transitions can be easily deteriorated due to enhanced phonon-assisted relaxation upon continuous laser irradiation. Herein, perovskite-based steady-state assisted band structure matching strategy is proposed to enhance vibronic coupling within perovskite-molecule charge transfer complex, leading to remarkable Raman enhancement up to 5.9 × 10 6 . Particularly, vibronic coupling can be modulated by tuning valence band position and introducing ultrathin Au coating, which allows selective enhancement of molecules with different band structures, including narrowbandgap molecules and wide-bandgap molecules. Importantly, based on intrinsically stable conduction band and valence band states, this system achieves ultrahigh photostability, preserving 91.3% of the original intensity after 50 000 s of irradiation. This system also provides an outstanding tool for trace molecular detection, allowing sensitive and selective identification of 9 types of gastric cancer related aldehydes, which enables distinguishing the breath of gastric cancer patients from healthy controls with a discriminatory accuracy of 81.09%. This study is anticipated to shed new light into the future strategy design of efficient and stable semiconducting SERS.

Sorafenib, a multitargeted kinase inhibitor, has been reported to elicit a limited therapeutic effect in hepatocellular carcinoma (HCC). Currently, phototherapy, including photodynamic therapy (PDT) and photothermal therapy (PTT), is emerging as a powerful modality for cancer therapy. However, few studies have been reported the effectiveness of the combination of sorafenib with PDT and PTT in HCC. Herein, we designed and synthesized bovine serum albumin (BSA)-coated zinc phthalocyanine (ZnPc) and sorafenib (SFB) nanoparticle (ZnPc/SFB@BSA). The obtained ZnPc/SFB@BSA was able to trigger PDT, PTT, and chemotherapy. After irradiation by a 730 nm light, ZnPc/SFB@BSA significantly suppressed HCC cell proliferation and metastasis while promoted cell apoptosis in vitro. Furthermore, intravenous injection of ZnPc/SFB@BSA led to dramatically reduced tumor growth in an orthotopic xenograft HCC model. More importantly, ZnPc/SFB@BSA presented low toxicity and adequate blood compatibility. Therefore, a combination of ZnPc with sorafenib via BSA-assembled nanoparticle can markedly suppress HCC growth, representing a promising strategy for HCC patients.