scholarly journals Nobiletin and Xanthohumol Sensitize Colorectal Cancer Stem Cells to Standard Chemotherapy

Cancers ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 3927
Author(s):  
Alice Turdo ◽  
Antonino Glaviano ◽  
Giacomo Pepe ◽  
Federica Calapà ◽  
Stefania Raimondo ◽  
...  

Colorectal cancer (CRC) mortality is mainly caused by patient refractoriness to common anti-cancer therapies and consequent metastasis formation. Besides, the notorious toxic side effects of chemotherapy are a concurrent obstacle to be tackled. Thus, new treatment approaches are needed to effectively improve patient outcomes. Compelling evidence demonstrated that cancer stem cells (CSCs) are responsible for treatment failure and relapse. New natural treatment approaches showed capabilities to selectively target the CSC subpopulation by rendering them targetable by standard cytotoxic compounds. Herein we show the anti-cancer properties of the polymethoxyflavones and prenylflavonoids extracted from Citrus sinensis and Humulus lupulus, respectively. The natural biofunctional fractions, singularly and in combination, reduced the cell viability of CRC stem cells (CR-CSCs) and synergized with 5-fluorouracil and oxaliplatin (FOX) chemotherapy. These phenomena were accompanied by a reduced S and G2/M phase of the cell cycle and upregulation of cell death-related genes. Notably, both phytoextracts in combination with FOX thwarted stemness features in CR-CSCs as demonstrated by the impaired clonogenic potential and decreased Wnt pathway activation. Extracts lowered the expression of CD44v6 and affected the expansion of metastatic CR-CSCs in patients refractory to chemotherapy. Together, this study highlights the importance of polymethoxyflavones and prenylflavonoids as natural remedies to aid oncological therapies.

Cancers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1833
Author(s):  
Tsai-Tsen Liao ◽  
Wei-Chung Cheng ◽  
Chih-Yung Yang ◽  
Yin-Quan Chen ◽  
Shu-Han Su ◽  
...  

Cell migration is critical for regional dissemination and distal metastasis of cancer cells, which remain the major causes of poor prognosis and death in patients with colorectal cancer (CRC). Although cytoskeletal dynamics and cellular deformability contribute to the migration of cancer cells and metastasis, the mechanisms governing the migratory ability of cancer stem cells (CSCs), a nongenetic source of tumor heterogeneity, are unclear. Here, we expanded colorectal CSCs (CRCSCs) as colonospheres and showed that CRCSCs exhibited higher cell motility in transwell migration assays and 3D invasion assays and greater deformability in particle tracking microrheology than did their parental CRC cells. Mechanistically, in CRCSCs, microRNA-210-3p (miR-210) targeted stathmin1 (STMN1), which is known for inducing microtubule destabilization, to decrease cell elasticity in order to facilitate cell motility without affecting the epithelial–mesenchymal transition (EMT) status. Clinically, the miR-210-STMN1 axis was activated in CRC patients with liver metastasis and correlated with a worse clinical outcome. This study elucidates a miRNA-oriented mechanism regulating the deformability of CRCSCs beyond the EMT process.


2021 ◽  
Author(s):  
Yingru Zhang ◽  
Chunpu Li ◽  
Ru Jia ◽  
Ruixuan Gao ◽  
Yiyang Zhao ◽  
...  

A new nano-micelle system with better water solubility and sustained drug release effect, targeting colorectal cancer stem cells, effectively inhibits the growth and metastasis of colorectal cancer via the Wnt/β-catenin signaling pathway.


2021 ◽  
Author(s):  
Takaaki Yoshikawa ◽  
Akihisa Fukuda ◽  
Mayuki Omatsu ◽  
Mio Namikawa ◽  
Makoto Sono ◽  
...  

2021 ◽  
Author(s):  
Mingli Yang ◽  
Thomas B. Davis B. Davis ◽  
Michael V. Nebozhyn ◽  
Andrey Loboda ◽  
Heiman Wang ◽  
...  

Gene Reports ◽  
2021 ◽  
pp. 101415
Author(s):  
Hamed Manoochehri ◽  
Shafagh Asadi ◽  
Hamid Tanzadehpanah ◽  
Mohsen Sheykhhasan ◽  
Masoud Ghorbani

2019 ◽  
Vol 139 ◽  
pp. 298-313 ◽  
Author(s):  
Jan Skoda ◽  
Karolina Borankova ◽  
Patric J. Jansson ◽  
Michael L.-H. Huang ◽  
Renata Veselska ◽  
...  

2020 ◽  
Vol 10 ◽  
Author(s):  
Anna Mukha ◽  
Anna Dubrovska

Most human tumors possess a high heterogeneity resulting from both clonal evolution and cell differentiation program. The process of cell differentiation is initiated from a population of cancer stem cells (CSCs), which are enriched in tumor‐regenerating and tumor‐propagating activities and responsible for tumor maintenance and regrowth after treatment. Intrinsic resistance to conventional therapies, as well as a high degree of phenotypic plasticity, makes CSCs hard-to-target tumor cell population. Reprogramming of CSC metabolic pathways plays an essential role in tumor progression and metastatic spread. Many of these pathways confer cell adaptation to the microenvironmental stresses, including a shortage of nutrients and anti-cancer therapies. A better understanding of CSC metabolic dependences as well as metabolic communication between CSCs and the tumor microenvironment are of utmost importance for efficient cancer treatment. In this mini-review, we discuss the general characteristics of CSC metabolism and potential metabolic targeting of CSC populations as a potent strategy to enhance the efficacy of conventional treatment approaches.


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