scholarly journals Ultrasound Microbubble-Mediated microRNA-505 Regulates Cervical Cancer Cell Growth via AKT2

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Leilei Xu ◽  
Qin Zhang ◽  
Changhua Li ◽  
Fu Hua ◽  
Xiaoping Liu

The application of ultrasound and microbubbles (USMB-) mediated microRNA (miR) is a promising approach of gene delivery for cancer treatment. We aimed to discuss the effects of USMB-miR-505 on cervical cancer (CC) development. miR-505 mediated by USMB was prepared. The effect of miR-505 on its transfection efficiency and the effect of miR-505 on HeLa cell proliferation, cell cycle, apoptosis, migration, and invasion were studied. The target gene of miR-505 was predicted, and its expression in CC was detected. The effect of the target gene on HeLa cells was further verified. USMB-miR-505 showed a higher transfection efficiency than miR-505 alone. The inhibitory effect of miR-505 mediated by USMB on HeLa cells was better than miR-505. miR-505 targeted AKT2, which was upregulated in CC. Overexpression of AKT2 reversed the inhibitory effect of USMB-miR-505 on HeLa cell malignant behaviors. Overall, we highlighted that USMB-miR-505 inhibited HeLa cell malignant behaviors by targeting AKT2.

2020 ◽  
Author(s):  
Leilei Xu ◽  
Qin Zhang ◽  
Changhua Li ◽  
Fu Hua ◽  
Xiaoping Liu

Abstract Background: The gene-loaded microbubbles (MBs) combined with ultrasound resulting in increased delivery efficiency, may be a novel method of gene delivery. We explored the effects of ultrasound and microbubbles (USMB)-mediated microRNA (miR)-505 on cervical cancer (CC) development.Methods: miR-505 mediated by USMB was prepared. The effect of miR-505 on its transfection efficiency was studied by RT-qPCR. The effect of miR-505 on HeLa cell proliferation was evaluated by MTT and colony formation assays. Flow cytometry was used to study cell cycle changes, Hoechst was utilized to detect apoptosis. Through the wound healing and Transwell assay, the migration and invasion ability of HeLa cells were measured. The target gene of miR-505 was predicted, and its expression in CC was detected. The target relationship and the effect of the target gene on HeLa cells were further verified.Results: USMB-miR-505 showed higher transfection efficiency than miR-505 alone. miR-505 inhibited HeLa cell malignant episodes, which were reinforced by USMB treatment. miR-505 targeted AKT2. AKT2 was highly expressed in CC, and overexpression of AKT2 significantly reversed the inhibitory effect of miR-505 mediated by USMB on HeLa cell malignant biological behaviors.Conclusion: USMB-miR-505 inhibited HeLa cell malignant biological behaviors by targeting AKT2.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Delizhaer Reheman ◽  
Jing Zhao ◽  
Shan Guan ◽  
Guan-Cheng Xu ◽  
Yi-Jie Li ◽  
...  

Abstract Pyrazolone complexes have strong anti-tumor and antibacterial properties, but the anti-tumor mechanism of pyrazolone-based copper complexes has not been fully understood. In this study, the possible mechanism and the inhibitory effect of a novel pyrazolone-based derivative compound [Cu(PMPP-SAL)(EtOH)] on human cervical cancer cells (HeLa cells) was investigated. [Cu(PMPP-SAL)(EtOH)] effectively inhibited proliferation of HeLa cells in vitro with an IC50 value of 2.082 after treatment for 72 h. Cell cycle analysis showed apoptosis was induced by blocking the cell cycle in the S phase. [Cu(PMPP-SAL)(EtOH)] promoted the loss of mitochondrial membrane potential, release of cytochrome c, PARP cleavage, and activation of caspase-3/9 in HeLa cells. Additionally, [Cu(PMPP-SAL)(EtOH)] inhibited the PI3K/AKT pathway and activated the P38/MAPK, and JNK/MAPK pathways. [Cu(PMPP-SAL)(EtOH)] also inhibited the phosphorylation of Iκ-Bα in the NF-κB pathway activated by TNF-α, thus restricting the proliferation of HeLa cells which were activated by TNF-α. In conclusion, [Cu(PMPP-SAL)(EtOH)] inhibited the growth of HeLa cells and induced apoptosis possibly via the caspase-dependent mitochondria-mediated pathway. These results suggest that [Cu(PMPP-SAL)(EtOH)] can be a potential candidate for the treatment of cervical cancer.


2018 ◽  
Vol 96 (10) ◽  
pp. 1004-1011 ◽  
Author(s):  
Zita Bognar ◽  
Katalin Fekete ◽  
Rita Bognar ◽  
Aliz Szabo ◽  
Reka A. Vass ◽  
...  

Previously, we found that desethylamiodarone (DEA) may have therapeutic potentiality in bladder cancer. In this study, we determined its effects on human cervical cancer cells (HeLa). Cell viability was evaluated by Muse Cell Count & Viability Assay; cell apoptosis was detected by Muse Annexin V & Dead Cell Assay. Cell cycle was flow cytometrically determined by Muse Cell Cycle Kit and the morphological changes of the cells were observed under a fluorescence microscope after Hoechst 33342 staining. The changes in the expression levels of apoptosis-related proteins in the HeLa cells were assessed by immunoblot. Our results showed that DEA significantly inhibited the proliferation and viability of HeLa cells and induced apoptosis in vitro in dose-dependent and also in cell cycle-dependent manner because DEA induced G0/G1 phase arrest in the HeLa cell line. We found that DEA treatment downregulated the expression of phospho-Akt and phospho-Bad. In addition, DEA could downregulate expression of Bcl-2, upregulate Bax, and induce cytochrome c release. Our results indicate that DEA might have significance as an anti-tumor agent against human cervical cancer.


2019 ◽  
Vol 12 (10) ◽  
pp. 1616-1623
Author(s):  
Annise Proboningrat ◽  
Amaq Fadholly ◽  
Regina Purnama Dewi Iskandar ◽  
Agung Budianto Achmad ◽  
Fedik Abdul Rantam ◽  
...  

Background and Aim: Cervical cancer accounts for the fourth as a cause of death from cancer in women worldwide, with more than 85% of events and deaths occurring in developing countries. The main problems of chemotherapy are the lack of selectivity and drug resistance. This study aimed to investigate the signal transduction of chitosan-based Pinus merkusii bark extract nanoparticles (Nano-PMBE) as an anticancer on HeLa cell line. Materials and Methods: Nano-PMBE was prepared based on the ionic gelation method. Its anticancer activities in HeLa cells were investigated through cytotoxicity test, cell cycle, and apoptosis analysis. The expression of p53 and caspase-9 was also observed. Results: The results showed that Nano-PMBE has a size of 394.3 nm. Meanwhile, the Nano-PMBE was cytotoxic to HeLa cells ( IC50 of 384.10 μg/ml), caused G0/G1 phase arrest and cell apoptosis in HeLa cells. Besides, the expression of p53 and caspase-9 has increased. Conclusion: The results showed a notable anticancer effect of Nano-PMBE by arresting the cell cycle and inducing apoptosis in HeLa cells, suggesting that it might have therapeutic potential for cervical cancer. Further research is needed to find out more about the anticancer mechanism of Nano-PMBE in HeLa cells to in vivo and clinical studies.


Author(s):  
Indri Kusharyanti ◽  
Larasati Larasati ◽  
Ratna Asmah Susidarti ◽  
Edy Meiyanto

Combination of chemotherapeutic agent and chemopreventive agent is being a new approach in cancer treatment. This is aimed at enhancing the effectivity and also reducing drug resistance and adverse side effect of the chemotherapeutic agent. Hesperidin, a citrus flavonoid has reported to reduce the proliferation of many cancer cells. The objectives of this study were to investigate cytotoxic activities, cell cycle modulation and apoptosis induction of hesperidin and its combination with doxorubicin on Hela cell lines. MTT [3-(4,5-dimethylthiazol-2-yl)-2.5-diphenyltetrazolium bromide] assay was used to measure the growth inhibitory effect of hesperidin and its combination with doxorubicin on Hela cells. Cell cycle profile was determined by flowcytometry and the data obtained was analyzed by using ModFit LT 3.0 program. Apoptosis assay was done using double staining method using ethidium-bromide and acridine-orange. Hesperidin inhibited cell growth with IC50 48 μM, while the IC50 of doxorubicin was 1000 nM. Combination of 500 nM doxorubicin and 6 μM hesperidin showed strongest inhibitory effect toward Hela cells. Hesperidin of 24 µM accumulated HeLa cells at G1 phase, but its combination with 500 nM Doxorubicin gave G1 and S phase accumulation at 24 h incubation. Both of Hesperidin and Doxorubicin were capable of inducing apoptosis. In accordance of the apoptotic effect, hesperidin, doxorubicin and their combination decreased the expression Bcl-2 and increased the expression of Bax. According to this result, hesperidin has a potency to be developed as co-chemotherapeutic agent for cervical cancer.Keywords: Cochemotherapy, Hesperidin, Doxorubicin, Hela, MTT assay


Author(s):  
Mohd Saeed

Aims: In recent years, natural products have received great attention to cancer prevention owing to their various health benefits, lack of toxicity, and side effects. Accumulating evidence shows that 18β-glycyrrhetinic acid (GRA) has antiproliferative and apoptotic activities on many cancer cell lines, while its role in cervical cancer remains unknown. Thus, the current research was         conducted to illustrate GRA's cytotoxic effect against the HeLa cell line of HPV18 + human cervical cancer. Methodology: The effect of GRA on HeLa cell line was tested by MTT and Trypan blue dye exclusion assay. Cell cycle analysis was carried out by flow cytometry after PI staining. Apoptosis was assessed after annexin V / PI double staining by flow cytometry. The Caspase activation assay kit analysed caspase activation. Reactive oxygen species (ROS) generation was measured by fluorimeter after DCFDA dye staining. Results: Results of the current study have shown that GRA exposure significantly inhibited the cell viability of HeLa cells in a dose- and time-dependent manner. GRA induced growth arrest of HeLa cells at G0/G1 phase of the cell cycle. Moreover, GRA's antiproliferative action was mediated through apoptosis, as evident from caspase-3 and -9 activation. Caspase inhibitors blocked the GRA-induced caspase activation and ameliorated the GRA-induced cytotoxicity. This suggested the role of the intrinsic pathway of apoptosis stimulated by GRA.  The intracellular ROS generation assay showed a dose-related increment in ROS production induced by GRA. Co-culturing of HeLa cells with N-acetyl cysteine (NAC), a ROS inhibitor, completely abrogated GRA-induced cell cycle arrest and apoptosis. Thus, the effect of NAC suggested the involvement of intracellular ROS in the GRA-induced cytotoxicity. Conclusion: In summary, GRA exhibited strong antiproliferative and apoptotic properties and, thus, could act as an adjunct in the prevention and management of cervical cancer.


2020 ◽  
Vol 16 ◽  
Author(s):  
Jamshed Iqbal ◽  
Ayesha Basharat ◽  
Sehrish Bano ◽  
Syed Mobasher Ali Abid ◽  
Julie Pelletier ◽  
...  

Aims: The present study was conducted to examine the inhibitory effects of synthesized sulfonylhydrazones on the expression of CD73 (ecto-5′-NT). Background: CD73 (ecto-5′-NT) represents the most significant class of ecto-nucleotidases which are mainly responsible for dephosphorylation of adenosine monophosphate to adenosine. Inhibition of CD73 played an important role in the treatment of cancer, autoimmune disorders, precancerous syndromes, and some other diseases associated with CD73 activity. Objective: Keeping in view the significance of CD73 inhibitor in the treatment of cervical cancer, a series of sulfonylhydrazones (3a-3i) derivatives synthesized from 3-formylchromones were evaluated. Methods: All sulfonylhydrazones (3a-3i) were evaluated for their inhibitory activity towards CD73 (ecto-5′-NT) by the malachite green assay and their cytotoxic effect was investigated on HeLa cell line using MTT assay. Secondly, most potent compound was selected for cell apoptosis, immunofluorescence staining and cell cycle analysis. After that, CD73 mRNA and protein expression were analyzed by real-time PCR and Western blot. Results: Among all compounds, 3h, 3e, 3b, and 3c were found the most active against rat-ecto-5′-NT (CD73) enzyme with IC50 (µM) values of 0.70 ± 0.06 µM, 0.87 ± 0.05 µM, 0.39 ± 0.02 µM and 0.33 ± 0.03 µM, respectively. These derivatives were further evaluated for their cytotoxic potential against cancer cell line (HeLa). Compound 3h and 3c showed the cytotoxicity at IC50 value of 30.20 ± 3.11 µM and 86.02 ± 7.11 µM, respectively. Furthermore, compound 3h was selected for cell apoptosis, immunofluorescence staining and cell cycle analysis which showed promising apoptotic effect in HeLa cells. Additionally, compound 3h was further investigated for its effect on expression of CD73 using qRT-PCR and western blot. Conclusion: Among all synthesized compounds (3a-3i), Compound 3h (E)-N'-((6-ethyl-4-oxo-4H-chromen-3-yl) methylene)-4-methylbenzenesulfonohydrazide was identified as most potent compound. Additional expression studies conducted on HeLa cell line proved that this compound successfully decreased the expression level of CD73 and thus inhibiting the growth and proliferation of cancer cells.


2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Yu Wu ◽  
Xianjing Hu ◽  
Liyan Song ◽  
Jianhua Zhu ◽  
Rongmin Yu

Inflammation is known to be closely associated with the development of cancer. The study was launched in human cervical cancer HeLa cells to investigate the antitumor and anti-inflammatory effects of P2, a marine polypeptide fraction from an important fishery resourceArca subcrenata. The basic research showed that P2 could suppress the production of nitric oxide in LPS-induced RAW264.7 macrophage cells as well as the secretion of inflammatory cytokines IL-6 and TNF-αin human cervical cancer HeLa cells. For the molecular mechanisms, P2 was shown to downregulate the gene expression of proinflammatory cytokines IL-6 and IL-8 and to inhibit the COX-2 and iNOS-related pathways in HeLa cells. In consequence, P2 might inhibit tumor development by blocking the interaction between tumor microenvironment and proinflammatory mediators. All findings indicate that P2 possesses the potential to be developed as a novel agent for cancer therapy.


Author(s):  
Xiaoling Wu ◽  
Zhiqin Yang ◽  
Huimin Dang ◽  
Huixia Peng ◽  
Zhijun Dai

Baicalein, a flavonoid derived from the root of Scutellaria baicalensis, has been reported to possess multiple pharmacological activities, such as anticancer and anti-inflammatory properties. This study investigated the effect of baicalein in cervical cancer cells. Cell growth curve and MTT assay were performed and revealed that baicalein inhibited the proliferation of SiHa and HeLa cells in a dose-dependent manner. We further found that baicalein arrested the cell cycle of SiHa and HeLa cells at the G0/G1 phase by suppressing the expression of cyclin D1 through the downregulation of phosphorylated protein kinase B (p-AKT) and phosphorylated glycogen synthase kinase 3β (p-GSK3β) according to FACS assays and Western blotting. Moreover, when CHIR-99021, a GSK3β inhibitor, was added to baicalein-treated SiHa cells, the expression of cyclin D1 was recovered, and cell proliferation was promoted. In conclusion, these data indicated that baicalein suspended the cell cycle at the G0/G1 phase via the downregulation of cyclin D1 through the AKT‐GSK3β signaling pathway and further inhibited the proliferation of SiHa and HeLa cervical cancer cells.


2016 ◽  
Vol 11 (4) ◽  
pp. 838 ◽  
Author(s):  
Ning Xia

<p class="Abstract">The present study was aimed at to demonstrate the antitumor effects of syringin in HeLa human cervical cancer cells. Its effects on apoptosis, cell cycle phase distribution as well as on cell migration were also examined. The effect on cell proliferation was evaluated by MTT assay, while as effects on colony formation were assessed using clonogenic assay. Syringin inhibited cancer cell growth in HeLa cells in a time-dependent as well as in a concentration-dependent manner. Syringin also led to inhibition of colony formation efficacy with complete suppression at 100 µM drug dose. Syringin could induce G2/M cell cycle arrest along with slight sub-G1 cell cycle arrest. HeLa cells began to emit red fluorescence as the dose of syringin increased from 0 µM in vehicle control to 100 µM. Syringin also inhibited cell migration in a dose-dependent manner with 100 µM dose of syringin leading to 100% inhibition of cell migration.</p><p> </p>


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