scholarly journals Cannabidiol Induces Cell Death in Human Lung Cancer Cells and Cancer Stem Cells

2021 ◽  
Vol 14 (11) ◽  
pp. 1169
Author(s):  
Hussein Hamad ◽  
Birgitte Brinkmann Olsen

Currently, there is no effective therapy against lung cancer due to the development of resistance. Resistance contributes to disease progression, recurrence, and mortality. The presence of so-called cancer stem cells could explain the ineffectiveness of conventional treatment, and the development of successful cancer treatment depends on the targeting also of cancer stem cells. Cannabidiol (CBD) is a cannabinoid with anti-tumor properties. However, the effects on cancer stem cells are not well understood. The effects of CBD were evaluated in spheres enriched in lung cancer stem cells and adherent lung cancer cells. We found that CBD decreased viability and induced cell death in both cell populations. Furthermore, we found that CBD activated the effector caspases 3/7, increased the expression of pro-apoptotic proteins, increased the levels of reactive oxygen species, as well as a leading to a loss of mitochondrial membrane potential in both populations. We also found that CBD decreased self-renewal, a hallmark of cancer stem cells. Overall, our results suggest that CBD is effective against the otherwise treatment-resistant cancer stem cells and joins a growing list of compounds effective against cancer stem cells. The effects and mechanisms of CBD in cancer stem cells should be further explored to find their Achilles heel.

2014 ◽  
Vol 13 (6) ◽  
pp. 529-540 ◽  
Author(s):  
Mina Kim ◽  
Yoo-Sun Kim ◽  
Kyung-Mi Kim ◽  
Hee-Chul Ko ◽  
Se-Jae Kim ◽  
...  

Lung cancer is the leading cause of cancer death worldwide, and most chemotherapeutic drugs have limited success in treating this disease. Furthermore, some drugs show undesirable side effects due to the enrichment of cancer stem cells (CSCs) that are present, leading to resistance to conventional chemotherapy and tumor relapse. CSCs possess self-renewal characteristics, aggressive tumor initiating activity, and ability to facilitate tumor metastasis. Therefore, development of nontoxic agents that can potentiate chemotherapy and eliminate CSCs would be highly desirable. In the present study, we investigated whether Sasa quelpaertensis leaf extracts (SQE) and cisplatin (CIS), individually or in combination, would exert anti-CSC and antimetastatic effect in H1299 and A549 human lung cancer cells. Following these treatments, cell growth, phosphorylation of phosphoinositide-3 kinase, and activation of the mammalian target of rapamycin were inhibited. Decreased serial sphere formation, clonogenicity, and expression of major stem cell markers, such as CD44 and SOX-2, in CD44+ cancer stem cells were also observed. In addition, inhibition of cell migration and invasion in both cell lines as well as inhibition of matrix metalloproteinase-2 activity and expression were detected. Importantly, the anticancer stemness and antimetastasis effects in each of these assays were greater for the combined treatment with SQE and CIS than with each treatment individually. In conclusion, the data suggest that SQE alone, or in combination with CIS, represents a promising therapeutic strategy for eliminating cancer stemness and cell invasion potential of CSCs, thereby treating and preventing metastatic lung cancer cells.


2017 ◽  
Vol 37 (4) ◽  
pp. 2161-2166 ◽  
Author(s):  
Chang-Ying Guo ◽  
Chen Yan ◽  
Lan Luo ◽  
Shinji Goto ◽  
Yoshishige Urata ◽  
...  

2016 ◽  
Author(s):  
Yogesh Kulkarni ◽  
Neelam Azad ◽  
Vivek Kaushik ◽  
Juan Sebastian Yakisich ◽  
Rajkumar Venkatadri ◽  
...  

Health ◽  
2011 ◽  
Vol 03 (06) ◽  
pp. 366-369 ◽  
Author(s):  
Khadidja Haïdara ◽  
Amal Alachkar ◽  
Ala-Eddin Al Moustafa

Oncotarget ◽  
2015 ◽  
Vol 7 (14) ◽  
pp. 18076-18084 ◽  
Author(s):  
Kieun Bae ◽  
Kyoung Eun Park ◽  
Jihye Han ◽  
Jongkwang Kim ◽  
Kyungtae Kim ◽  
...  

AMB Express ◽  
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Fanping Wang ◽  
Yanwei Sun ◽  
Xiaoyu Huang ◽  
Caijuan Qiao ◽  
Wenrui Zhang ◽  
...  

AbstractSulforaphane (SFN), an active compound in cruciferous vegetables, has been characterized by its antiproliferative capacity. We investigated the role and molecular mechanism through which SFN regulates proliferation and self-renewal of lung cancer stem cells. CD133+ cells were isolated with MACs from lung cancer A549 and H460 cells. In this study, we found that SFN inhibited the proliferation of lung cancer cells and self-renewal of lung cancer stem cells simultaneously. Meanwhile, the mRNA and protein expressions of Shh, Smo, Gli1 and PHC3 were highly activated in CD133+ lung cancer cells. Compared with siRNA-control group, Knock-down of Shh inhibited proliferation of CD133+ lung cancer cells, and decreased the protein expression of PHC3 in CD133+ lung cancer cells. Knock-down of PHC3 also affected the proliferation and decreased the Shh expression level in CD133+ lung cancer cells. In addition, SFN inhibited the activities of Shh, Smo, Gli1 and PHC3 in CD133+ lung cancer cells. Furthermore, the inhibitory effect of SFN on the proliferation of siRNA-Shh and siRNA-PHC3 cells was weaker than that on the proliferation of siRNA-control cells. Sonic Hedgehog signaling pathway might undergo a cross-talk with PHC3 in self-renewal of lung cancer stem cells. SFN might be an effective new drug which could inhibit self-renewal of lung cancer stem cells through the modulation of Sonic Hedgehog signaling pathways and PHC3. This study could provide a novel way to improve therapeutic efficacy for lung cancer stem cells.


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