Multidrug-resistant cancer cells and cancer stem cells hijack cellular systems to circumvent systemic therapies, can natural products reverse this?

2016 ◽  
Vol 74 (5) ◽  
pp. 777-801 ◽  
Author(s):  
Qian Zhang ◽  
Yunjiang Feng ◽  
Derek Kennedy
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mina Park ◽  
Jee Won Hwang ◽  
Yena Cho ◽  
Saegun Kim ◽  
Sang Hoon Han ◽  
...  

AbstractThe success of cancer chemotherapy is limited by multidrug resistance (MDR), which is mainly caused by P-glycoprotein (P-gp) overexpression. In the present study, we describe a novel microtubule inhibitor, 5-(N-methylmaleimid-3-yl)-chromone (SPC-160002), that can be used to overcome MDR. A synthetic chromone derivative, SPC-160002, showed a broad spectrum of anti-proliferative effects on various human cancer cells without affecting P-gp expression and its drug efflux function. Treatment with SPC-160002 arrested the cell cycle at the M phase, as evidenced using fluorescence-activated cell sorting analysis, and increased the levels of mitotic marker proteins, including cyclin B, pS10-H3, and chromosomal passenger complex. This mitotic arrest by SPC-160002 was mediated by promoting and stabilizing microtubule polymerization, similar to the mechanism observed in case of taxane-based drugs. Furthermore, SPC-160002 suppressed the growth and sphere-forming activity of cancer stem cells. Our data herein strongly suggest that SPC-160002, a novel microtubule inhibitor, can be used to overcome MDR and can serve as an attractive candidate for anticancer drugs.


2018 ◽  
Vol 23 (43) ◽  
pp. 6563-6572
Author(s):  
Ana Filipa Cruz ◽  
Nuno Andre Fonseca ◽  
Vera Moura ◽  
Sergio Simoes ◽  
Joao Nuno Moreira

2014 ◽  
Vol 9 (2) ◽  
pp. 112-116 ◽  
Author(s):  
Maria Toloudi ◽  
Eleni Ioannou ◽  
Marina Chatziioannou ◽  
Panagiotis Apostolou ◽  
Christos Kiritsis ◽  
...  

Author(s):  
Milad Ashrafizadeh ◽  
Shahram Taeb ◽  
Hamed Haghi-Aminjan ◽  
Shima Afrashi ◽  
Kave Moloudi ◽  
...  

: Resistance of cancer cells to therapy is a challenge for achieving an appropriate therapeutic outcome. Cancer (stem) cells possess several mechanisms for increasing their survival following exposure to toxic agents such as chemotherapy drugs, radiation as well as immunotherapy. Evidences show that apoptosis plays a key role in response of cancer (stem) cells and their multi drug resistance. Modulation of both intrinsic and extrinsic pathways of apoptosis can increase efficiency of tumor response and amplify the therapeutic effect of radiotherapy, chemotherapy, targeted therapy and also immunotherapy. To date, several agents as adjuvant have been proposed to overcome resistance of cancer cells to apoptosis. Natural products are interesting because of low toxicity on normal tissues. Resveratrol is a natural herbal agent that has shown interesting anti-cancer properties. It has been shown to kill cancer cells selectively, while protecting normal cells. Resveratrol can augment reduction/oxidation (redox) reactions, thus increases the production of ceramide and the expression of apoptosis receptors such as Fas ligand (FasL). Resveratrol also triggers some pathways which induce mitochondrial pathway of apoptosis. On the other hand, resveratrol has an inhibitory effect on anti-apoptotic mediators such as nuclear factor κ B (NFκB), cyclooxygenase-2 (COX-2), phosphatidylinositol 3–kinase (PI3K) and mTOR. In this review, we explain the modulatory effects of resveratrol on apoptosis, which can augment the therapeutic efficiency of anti-cancer drugs or radiotherapy.


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.


Cancers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 3191
Author(s):  
Katherine Po Sin Chung ◽  
Rainbow Wing Hei Leung ◽  
Terence Kin Wah Lee

Cancer stem cells (CSCs) within the tumor bulk play crucial roles in tumor initiation, recurrence and therapeutic resistance. In addition to intrinsic regulation, a growing body of evidence suggests that the phenotypes of CSCs are also regulated extrinsically by stromal cells in the tumor microenvironment (TME). Here, we discuss the current knowledge of the interplay between stromal cells and cancer cells with a special focus on how stromal cells drive the stemness of cancer cells and immune evasive mechanisms of CSCs. Knowledge gained from the interaction between CSCs and stromal cells will provide a mechanistic basis for the development of novel therapeutic strategies for the treatment of cancers.


Nanomedicine ◽  
2016 ◽  
Vol 11 (19) ◽  
pp. 2565-2579 ◽  
Author(s):  
Zhirong Gong ◽  
Dazhong Chen ◽  
Fangyuan Xie ◽  
Junjie Liu ◽  
He Zhang ◽  
...  

2021 ◽  
Vol 28 ◽  
Author(s):  
Jiahua Cui ◽  
Jiajun Qian ◽  
Larry Ming-Cheung Chow ◽  
Jinping Jia

Background: The proposed central role of cancer stem cells (CSCs) in tumor development has been extended to explain the diverse oncologic phenomena such as multidrug resistance, metastasis and tumor recurrence in clinics. Due to the enhanced expression of ATP-binding cassette transporters and anti-apoptotic factors, stagnation on G0 phase and the strong ability of self-renewal, the CSCs were highly resistant to clinical anticancer drugs. Therefore, the discovery of new drug candidates that could effectively eradicate cancer stem cells afforded promising outcomes in cancer therapy. Introduction: Natural products and their synthetic analogues are a rich source of biologically active compounds and several of them have already been recognized as potent CSCs killers. We aim to provide a collection of recently identified natural products that suppressed the survival of the small invasive CSC populations and combated the drug resistance of these cells in chemotherapy. Results and Conclusion: These anti-CSCs natural products included flavonoids, stilbenes, quinones, terpenoids, polyketide antibiotics, steroids and alkaloids. In the present review, we highlighted the therapeutic potential of natural products and their derivatives against the proliferation and drug resistance of CSCs, their working mechanisms and related structure-activity relationships. Meanwhile, in this survey, several natural products with diverse cellular targets such as the naphthoquinone shikonin and the stilbene resveratrol were characterized as promising lead compounds for future development.


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