Journal

BioFactors

Papers (6)

Piperine: an emerging biofactor with anticancer efficacy and therapeutic potential

Abstract Anticancer drug discovery needs serious attention to overcome the high mortality rate caused by cancer. There are still many obstacles to treating this disease, such as the high cost of chemotherapeutic drugs, the resulting side effects from the drug, and the occurrence of multidrug resistance. Herbaceous plants are a reservoir of natural compounds that can be anticancer drugs with novel mechanisms of action. Piperine, a bioactive compound derived from Piper species, is gaining attention due to its unique dual role in directly inhibiting tumor growth and enhancing the bioavailability of chemotherapeutic drugs. Unlike conventional treatments, Piperine exhibits a novel mechanism of action by modulating multiple signaling pathways, including apoptosis and autophagy, with low toxicity. Additionally, Piperine acts as a bioenhancer by improving the absorption and effectiveness of other anticancer agents, reducing the required dosage, and minimizing side effects. Therefore, this review aims to visualize a summary of Piperine sources, phytochemistry, chemical structure–anticancer activity relationship, anticancer activities of semi‐synthetic derivatives, pharmacokinetic and bioavailability, in vitro and in vivo preclinical studies, mechanism of antitumor action, human clinical trials, toxicity, side effects, and safety of Piperine. References were collected from the Pubmed/MedLine database ( https://pubmed.ncbi.nlm.nih.gov/ ) with the following keywords: “Piperine anticancer,” “Piperine derivatives,” “Piperine antitumor mechanism” and “Piperine pharmacokinetic and bioavailability,” after filter process by inclusion and exclusion criteria, 101 were selected from 444 articles. From 2013 to 2023, there were numerous studies regarding preclinical studies of Piperine of various cell lines, including breast cancer, prostate cancer, lung cancer, melanoma, cervical cancer, gastric cancer, osteosarcoma, colon cancer, hepatocellular carcinoma, ovarian cancer, leukemia, colorectal cancer, and hypopharyngeal carcinoma. In vivo, the anticancer study has also been conducted on some animal models, such as Ehrlich carcinoma‐bearing mice, Ehrlich ascites carcinoma cells‐bearing Balbc mice, hepatocellular carcinoma‐bearing Wistar rat, A375SM cells‐bearing mice, A375P cells‐bearing mice, SNU‐16 cells‐bearing BalbC mice, and HGC‐27‐bearing baby mice. Treatment with this compound leads to cell proliferation inhibition and induction of apoptosis. Piperine has been used for clinical trials of diseases, but no cancer patient report exists. Various semi‐synthetic derivatives of Piperine show efficacy as an anticancer drug across multiple cell lines. Piperine shows promise for use in cancer clinical trials, either as a standalone treatment or as a bioenhancer. Its bioenhancer properties may enhance the efficacy of existing chemotherapeutic agents, providing a valuable foundation for developing new anticancer therapies.

Long non‐coding RNA LINC01224 plays an oncogenic role in endometrial cancer via miR ‐4673/ TPX2 axis and activating Wnt/β‐catenin signaling pathway

Abstract Endometrial cancer (EC) is a prevalent gynecological malignancy with a rising incidence and poor prognosis in advanced cases. Long non‐coding RNAs (lncRNAs) have been implicated in various cancers, including EC. This study explores the role of lncRNA Linc01224 in EC. Analyzing TCGA data, we found Linc01224 expression significantly elevated in EC tissues, correlating with poor prognosis. Clinical samples validated these findings, showing higher Linc01224 levels in tumor tissues. Knockdown of Linc01224 in EC cell lines (Hec‐1‐B and Ishikawa) inhibited proliferation, migration, and promoted apoptosis, alongside increased Bax and decreased BCL2 expression. Furthermore, Linc01224 knockdown notably reduced Wnt2/β‐catenin pathway activation. We identified TPX2 as a target of miR‐4673, which is regulated by Linc01224 through a competing endogenous RNA (ceRNA) mechanism. Dual‐luciferase reporter assays confirmed miR‐4673 binding to Linc01224 and TPX2. Rescue experiments revealed that TPX2 knockdown reversed Linc01224‐induced proliferation and migration, highlighting TPX2's pivotal role in Linc01224's oncogenic function. In vivo, Linc01224 knockdown significantly impeded tumor growth and metastasis in a xenograft model, with decreased expression of c‐Myc, Cyclin D1, and β‐catenin. These findings reveal a novel ceRNA regulatory axis involving Linc01224, miR‐4673, and TPX2, elucidating Linc01224's role in EC progression through the Wnt2/β‐catenin pathway. Linc01224 emerges as a potential biomarker and therapeutic target for EC prognosis and treatment.

ANO6 Confers Paclitaxel Resistance by Targeting Ferroptosis in Cervical Cancer

ABSTRACT Paclitaxel (PTX) resistance limits cervical cancer therapy. Ferroptosis suppression via GPX4 and redox remodeling has emerged as a resistance mechanism, but upstream regulators remain unclear. To determine whether ANO6 drives PTX resistance by inhibiting ferroptosis and to define the ANO6–GPX4 axis mechanistically and therapeutically. Transcriptomic analyses, immunohistochemistry on clinical specimens, and cervical cancer cell models with gain/loss of ANO6 were combined with ferroptosis assays, mitochondrial imaging, apoptosis/viability assays, and Co‐IP/CHX chase to assess ANO6–GPX4 interaction and stability. GPX4 transcriptional control was probed by ChIP‐qPCR and dual‐luciferase. PTX sensitivity was tested in vitro and in xenografts, with or without the ferroptosis inducer RSL3. ANO6 was overexpressed in cervical cancer and associated with worse prognosis. ANO6 knockdown reduced GPX4, SLC7A11, and NRF2, increased ACSL4, elevated lipid peroxidation and iron load, disrupted mitochondrial integrity, and heightened PTX cytotoxicity; ANO6 overexpression had opposite effects. ANO6 physically associated with GPX4 and preserved its protein stability; NRF2 enhanced GPX4 promoter activity, supporting a dual (post‐translational/transcriptional) maintenance of GPX4 under ANO6 control. In PTX‐resistant cells, ANO6 was upregulated; its depletion restored ferroptosis and PTX sensitivity, whereas GPX4 overexpression rescued resistance. In vivo, ANO6 overexpression promoted tumor growth and PTX resistance, while PTX + RSL3 synergistically suppressed tumors and reversed GPX4‐axis signaling. ANO6 confers PTX resistance by sustaining GPX4‐dependent ferroptosis evasion and mitochondrial homeostasis. Targeting the ANO‐GPX4 axis, alone or combined with ferroptosis induction, may improve chemotherapy sensitivity in cervical cancer.

Profiling of RUVBL2 ‐Induced Transcriptome Alterations Highlights a Critical Role for Chromatin Remodeling in Ovarian Cancer

ABSTRACT Cancerous transcriptome alterations in carcinoma cells could be originated from either genetic copy number changes or epigenetic reprogramming. Ovarian cancer (OV) is the most malignant gynecologic tumor, known for high aneuploidy with robust copy number alterations. However, low aneuploidy ovarian tumors are also frequently found, indicating an essential contribution of epigenetic factors during tumorigenesis and cancer development. Chromatin remodeling modulates the transcriptome epigenetically in a variety of cancer types, but its role in OV is still unclear. Hence, we investigated a cohort of 102 OV patients, analyzed transcriptomic and clinical data from public databases, and performed cellular experiments. We found that RUVBL2, a subunit of the INO80 complex, functions as the key oncogenic chromatin remodeler in OV. RUVBL2 is upregulated in tumors, particularly in low‐aneuploidy cases, and is associated with poor prognosis. RUVBL2 drives nucleosome dynamics and elevates chromatin accessibility selectively at promoter regions. The landscape of RUVBL2‐dependent modulation of chromatin accessibility and the transcriptome exhibits activation of various transcription factors, especially the AP‐1 family, and upregulation of a series of key genes, including CDKN3 , MYBL2 , and ZNF144 , resulting in mediation of cell cycle and Hippo signaling pathway to promote DNA synthesis and cell proliferation. Hence, RUVBL2‐dependent chromatin remodeling plays a key role in oncogenic reprogramming of the transcriptome in OV. These findings provide novel insights into the molecular etiology of OV and disclose potential biomarkers and drug targets.

LncRNA TTN‐AS1 acts as sponge for miR‐15b‐5p to regulate FBXW7 expression in ovarian cancer

AbstractEmerging evidence showed that long noncoding RNA (lncRNA) plays crucial roles in regulating various cancer biological behaviors. Titin‐antisense RNA1 (TTN‐AS1) has been reported to have crucial roles in cancers but its role in ovarian cancer remains unknown. The levels of TTN‐AS1, microNRA‐15b‐5p (miR‐15b‐5p), and F‐box and WD repeat domain containing 7 (FBXW7) in ovarian cancer cells were measured by quantitative reverse‐transcription PCR. Targets for TTN‐AS1 and miR‐15b‐5p were predicted by bioinformatic tools, and validated by luciferase activity reporter assay. Cell proliferation, colony formation, and cell apoptosis were analyzed with cell counting kit‐8 assay, colony formation assay, and flow cytometry. Correlation of TTN‐AS1 and FBXW7 was analyzed at gene expression profiling interactive analysis. TTN‐AS1 was found decreased expression in ovarian cancer tissues and cells. Dual‐luciferase activity validated TTN‐AS1 and FBXW7 shared binding site in miR‐15b‐5p. Functional assays showed TTN‐AS1 overexpression inhibits ovarian cancer cell proliferation, colony formation but promotes apoptosis. Rescue experiments showed that knockdown of FBXW7 could partially counteracted the effects of TTN‐AS1 overexpression on ovarian cancer cell behaviors. Our results indicated that the TTN‐AS1/miR‐15b‐5p/FBXW7 axis identified in this work could help to identify treatment biomarkers for ovarian cancer.

Publisher

Wiley

ISSN

0951-6433

BioFactors