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Song H, Cai GH, Liang J, Ao DS, Wang H, Yang ZH. Three-dimensional culture and clinical drug responses of a highly metastatic human ovarian cancer HO-8910PM cells in nanofibrous microenvironments of three hydrogel biomaterials. J Nanobiotechnology 2020; 18:90. [PMID: 32527266 PMCID: PMC7291456 DOI: 10.1186/s12951-020-00646-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 06/01/2020] [Indexed: 01/18/2023] Open
Abstract
Background Ovarian cancer is a highly aggressive malignant disease in gynecologic cancer. It is an urgent task to develop three-dimensional (3D) cell models in vitro and dissect the cell progression-related drug resistance mechanisms in vivo. In the present study, RADA16-I peptide has the reticulated nanofiber scaffold networks in hydrogel, which is utilized to develop robust 3D cell culture of a high metastatic human ovarian cancer HO-8910PM cell line accompanied with the counterparts of Matrigel and collagen I. Results Consequently, HO-8910PM cells were successfully cultivated in three types of hydrogel biomaterials, such as RADA16-I hydrogel, Matrigel, and collagen I, according to 3D cell culture protocols. Designer RADA16-I peptide had well-defined nanofiber networks architecture in hydrogel, which provided nanofiber cell microenvironments analogous to Matrigel and collagen I. 3D-cultured HO-8910PM cells in RADA16-I hydrogel, Matrigel, and collagen I showed viable cell proliferation, proper cell growth, and diverse cell shapes in morphology at the desired time points. For a long 3D cell culture period, HO-8910PM cells showed distinct cell aggregate growth patterns in RADA16-I hydrogel, Matrigel, and collagen I, such as cell aggregates, cell colonies, cell clusters, cell strips, and multicellular tumor spheroids (MCTS). The cell distribution and alignment were described vigorously. Moreover, the molecular expression of integrin β1, E-cadherin and N-cadherin were quantitatively analyzed in 3D-cultured MCTS of HO-8910PM cells by immunohistochemistry and western blotting assays. The chemosensitivity assay for clinical drug responses in 3D context indicated that HO-8910PM cells in three types of hydrogels showed significantly higher chemoresistance to cisplatin and paclitaxel compared to 2D flat cell culture, including IC50 values and inhibition rates. Conclusion Based on these results, RADA16-I hydrogel is a highly competent, high-profile, and proactive nanofiber scaffold to maintain viable cell proliferation and high cell vitality in 3D cell models, which may be particularly utilized to develop useful clinical drug screening platform in vitro.
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Affiliation(s)
- Hong Song
- College of Basic Medicine, Zunyi Medical University, No.201 Dalian Road, Huichuan District, Zunyi, Guizhou, 563003, China
| | - Guo-Hui Cai
- College of Basic Medicine, Zunyi Medical University, No.201 Dalian Road, Huichuan District, Zunyi, Guizhou, 563003, China
| | - Jian Liang
- School of Resources and Environment, ABA Normal University, Shuimo Town, Wenchuan County, Aba Prefecture, Sichuan, 623002, China
| | - Di-Shu Ao
- College of Basic Medicine, Zunyi Medical University, No.201 Dalian Road, Huichuan District, Zunyi, Guizhou, 563003, China
| | - Huan Wang
- College of Basic Medicine, Zunyi Medical University, No.201 Dalian Road, Huichuan District, Zunyi, Guizhou, 563003, China
| | - Ze-Hong Yang
- West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, No.17 People's South Road, Chengdu, Sichuan, 610041, China.
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152
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Liang L, Fu J, Wang S, Cen H, Zhang L, Mandukhail SR, Du L, Wu Q, Zhang P, Yu X. MiR-142-3p enhances chemosensitivity of breast cancer cells and inhibits autophagy by targeting HMGB1. Acta Pharm Sin B 2020; 10:1036-1046. [PMID: 32642410 PMCID: PMC7332808 DOI: 10.1016/j.apsb.2019.11.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 09/03/2019] [Accepted: 10/08/2019] [Indexed: 12/12/2022] Open
Abstract
MiR-142-3p has been reported to act as a tumor suppressor in breast cancer. However, the regulatory effect of miR-142-3p on drug resistance of breast cancer cells and its underlying mechanism remain unknown. Here, we found that miR-142-3p was significantly downregulated in the doxorubicin (DOX)-resistant MCF-7 cell line (MCF-7/DOX). MiR-142-3p overexpression increased DOX sensitivity and enhanced DOX-induced apoptosis in breast cancer cells. High-mobility group box 1 (HMGB1) is a direct functional target of miR-142-3p in breast cancer cells and miR-142-3p negatively regulated HMGB1 expression. Moreover, overexpression of HMGB1 dramatically reversed the promotion of apoptosis and inhibition of autophagy mediated by miR-142-3p up-regulation. In conclusion, miR-142-3p overexpression may inhibit autophagy and promote the drug sensitivity of breast cancer cells to DOX by targeting HMGB1. The miR-142-3p/HMGB1 axis might be a novel target to regulate the drug resistance of breast cancer patients.
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153
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Sun T, Liu Y, Li M, Yu H, Piao H. Administration with hyperoside sensitizes breast cancer cells to paclitaxel by blocking the TLR4 signaling. Mol Cell Probes 2020; 53:101602. [PMID: 32447047 DOI: 10.1016/j.mcp.2020.101602] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/07/2020] [Accepted: 05/15/2020] [Indexed: 12/18/2022]
Abstract
Breast cancer is a malignancy and one of the most frequent causes of cancer death among women worldwide. Paclitaxel is a common chemotherapeutic drug and has recently been shown to facilitate tumor cell escape during cytotoxic chemotherapy by inducing inflammatory mediators and pro-survival protein expression. Hyperoside is a flavonoid glycoside compound and exerts anti-inflammation, and anti-tumor growth properties. However, its function in breast cancer chemosensitivity remains poorly elucidated. In this study, hyperoside exhibited little cytotoxicity to normal human breast mammary epithelial cell lines, and also protected against paclitaxel-induced cytotoxicity in MCF-10A. Importantly, treatment with hyperoside engendered not only inhibition of cell viability, but also potentiated cancer cell sensitivity to paclitaxel in TLR4-positive breast cancer MDA-MB-231 cells by suppressing cell viability, and increasing cell apoptosis and caspase-3 activity. Nevertheless, although hyperoside exposure restrained cell viability, its treatment presented little effects to paclitaxel sensitivity in TLR4-null HCC1806 cells. Intriguingly, paclitaxel stimulation activated the TLR4-NF-κB signaling, which was reversed after hyperoside administration. Concomitantly, hyperoside also attenuated paclitaxel-mediated anti-apoptotic Bcl-2 expression, but enhanced the effects of paclitaxel on pro-apoptotic Bax expression, and pro-inflammatory cytokine IL-6 and IL-6 levels in MDA-MB-231 cells. Importantly, restoring the TLR4 pathway overturned hyperoside-evoked chemosensitivity to paclitaxel in MDA-MB-231 cells. Thus, hyperoside may elevate breast cancer cell sensitivity to paclitaxel by blocking TLR4 activation-mediated pro-inflammatory and pro-survival approaches, thereby endorsing its usefulness as a promising therapeutic combination to overcome chemosensitivity in breast cancer.
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Affiliation(s)
- Ting Sun
- Department of Blood Transfusion, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning, 110042, PR China
| | - Yunyong Liu
- Department of Cancer Prevention and Control, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning, 110042, PR China
| | - Mengdan Li
- Department of Cancer Prevention and Control, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning, 110042, PR China
| | - Huihui Yu
- Department of Cancer Prevention and Control, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning, 110042, PR China
| | - Haozhe Piao
- Department of Neurosurgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning, 110042, PR China.
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154
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Giannoni A, Borrelli C, Mirizzi G, Richerson GB, Emdin M, Passino C. Benefit of buspirone on chemoreflex and central apnoeas in heart failure: a randomized controlled crossover trial. Eur J Heart Fail 2020; 23:312-320. [PMID: 32441857 DOI: 10.1002/ejhf.1854] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 04/14/2020] [Accepted: 04/16/2020] [Indexed: 12/18/2022] Open
Abstract
AIMS Increased chemosensitivity to carbon dioxide (CO2 ) is an important trigger of central apnoeas (CA) in heart failure (HF), with negative impact on outcome. We hypothesized that buspirone, a 5HT1A receptor agonist that inhibits serotonergic chemoreceptor neuron firing in animals, can decrease CO2 chemosensitivity and CA in HF. METHODS AND RESULTS The BREATH study was a randomized, double-blind, placebo-controlled, crossover study (EudraCT-code 2015-005383-42). Outpatients with systolic HF (left ventricular ejection fraction <50%) and moderate-severe CA [nocturnal apnoea-hypopnoea index (AHI) ≥15 events/h] were randomly assigned to either oral buspirone (15 mg thrice daily) or placebo for 1 week, with a crossover design (1 week of wash-out). The primary effectiveness endpoint was a decrease in CO2 chemosensitivity >0.5 L/min/mmHg. The primary safety endpoint was freedom from serious adverse events. Sixteen patients (age 71.3 ± 5.8 years, all males, left ventricular ejection fraction 29.8 ± 7.8%) were enrolled. In the intention-to-treat analysis, more patients treated with buspirone (8/16, 50%) had a CO2 chemosensitivity reduction >0.5 L/min/mmHg from baseline than those treated with placebo (1/16, 6.7%) (difference between groups 43%, 95% confidence interval 14-73%, P = 0.016). Buspirone compared to baseline led to a 41% reduction in CO2 chemosensitivity (P = 0.001) and to a reduction in the AHI, central apnoea index and oxygen desaturation index of 42%, 79%, 77% at nighttime and 50%, 78%, 86% at daytime (all P < 0.01); no difference was observed after placebo administration (all P > 0.05). No patient reported buspirone-related serious adverse events. CONCLUSIONS Buspirone reduces CO2 chemosensitivity and improves CA and oxygen saturation across the 24 h in patients with HF.
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Affiliation(s)
- Alberto Giannoni
- Fondazione Toscana G. Monasterio, Pisa, Italy.,Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
| | | | - Gianluca Mirizzi
- Fondazione Toscana G. Monasterio, Pisa, Italy.,Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
| | | | - Michele Emdin
- Fondazione Toscana G. Monasterio, Pisa, Italy.,Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
| | - Claudio Passino
- Fondazione Toscana G. Monasterio, Pisa, Italy.,Institute of Life Sciences, Scuola Superiore Sant'Anna, Pisa, Italy
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155
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Chen P, Jiao L, Ren F, Wang DB. Clinical value of serum squamous cell carcinoma antigen levels in predicting chemosensitivity, lymph node metastasis, and prognosis in patients with cervical squamous cell carcinoma. BMC Cancer 2020; 20:423. [PMID: 32410650 PMCID: PMC7227060 DOI: 10.1186/s12885-020-06934-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 05/06/2020] [Indexed: 12/17/2022] Open
Abstract
Background Our aim was to investigate the value of serum squamous cell carcinoma (SCC) antigen levels in predicting chemosensitivity, lymph node metastasis, as well as prognosis in patients with cervical squamous cell carcinoma who received neoadjuvant chemotherapy (NACT). Methods This retrospective study enrolled 103 patients with cervical squamous cell carcinoma and then compared the SCC antigen levels between patients who underwent NACT followed by radical surgery (NACT group) and those who underwent radical surgery alone (conventional group), and a correlation analysis between SCC antigen levels and chemosensitivity, lymph node metastasis, or survival time was conducted. Results The SCC antigen levels changed after NACT and were associated with chemosensitivity. Moreover, the optimal cut-off value of the percentage decrease in SCC antigen level after the first chemotherapy (FSCC (%)) was 42.0%, which could be used for assessment of chemosensitivity. The rate of positive lymph nodes in patients with pretreatment SCC antigen levels ≥3.9 ng/mL was significantly decreased after NACT. The overall survival (OS) of NACT group was significantly longer than that of conventional group when the pretreatment SCC antigen levels were ≥ 4.55 ng/mL. The OS and progression-free survival rates of patients with SCC antigen levels < 2.7 ng/mL were longer than those ≥2.7 ng/mL after the first chemotherapy. Conclusions The 42.0% of FSCC (%) after NACT is a reliable indicator of chemosensitivity. Pretreatment and posttreatment SCC antigen levels can be used in evaluating the lymph node metastases and prognosis of patients with cervical squamous cell carcinoma.
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Affiliation(s)
- Peng Chen
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, P.R. China
| | - Liang Jiao
- Department of Gynecology, Cancer Hospital of China Medical University, Shenyang, Liaoning, 110042, P.R. China
| | - Fang Ren
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, P.R. China
| | - Dan-Bo Wang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, P.R. China. .,Department of Gynecology, Cancer Hospital of China Medical University, Shenyang, Liaoning, 110042, P.R. China.
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Woźniak M, Makuch S, Winograd K, Wiśniewski J, Ziółkowski P, Agrawal S. 6-Shogaol enhances the anticancer effect of 5-fluorouracil, oxaliplatin, and irinotecan via increase of apoptosis and autophagy in colon cancer cells in hypoxic/aglycemic conditions. BMC Complement Med Ther 2020; 20:141. [PMID: 32393373 PMCID: PMC7216385 DOI: 10.1186/s12906-020-02913-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 03/31/2020] [Indexed: 12/15/2022] Open
Abstract
Background The development and growth of colorectal cancer based on constitutive activation of numerous signaling pathways that stimulate proliferation and metastasis. Plant-derived agents excel by targeting multiple aspects of tumor progression. Previous investigations have shown that ginger derivatives- shogaols possess anti-cancer and anti-inflammatory effects. In the present study, we have examined the anti-cancer effects of 6-shogaol alongside with the most widely used chemotherapeutic agents/regimens in the tumor-like microenvironment conditions. Methods Cytotoxicity on two colon cancer cell lines (SW480 and SW620) was measured by MTT test. Apoptosisassay, immunocytochemical and Western blotting analysis for autophagy and apoptosis detection were performed. Results Here, we report that 6-shogaol by itself or in combination with chemotherapeutic agents/regimens exerted a cytotoxic effect on CRC cells. Cell death might be linked with the activation of autophagy and apoptosis-related pathways. In the tumor-like microenvironment, which is characterized by hypoxia and glucose starvation, 6-shogaol with chemotherapeutics is significantly more potent than conventional chemotherapy alone. Conclusions Collectively, our data suggest that the addition of 6-shogaol to established chemotherapeutic regimens could potentially be a remarkable therapeutic strategy for colorectal cancer.
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Affiliation(s)
- Marta Woźniak
- Department of Pathology, Wroclaw Medical University, ul. K. Marcinkowskiego, 150-368, Wrocław, Poland.
| | - Sebastian Makuch
- Department of Pathology, Wroclaw Medical University, ul. K. Marcinkowskiego, 150-368, Wrocław, Poland
| | - Kinga Winograd
- Department of Chemistry, Wroclaw University of Science and Technology, Wrocław, Poland
| | - Jerzy Wiśniewski
- Department of Biochemistry, Wroclaw Medical University, Wrocław, Poland
| | - Piotr Ziółkowski
- Department of Pathology, Wroclaw Medical University, ul. K. Marcinkowskiego, 150-368, Wrocław, Poland
| | - Siddarth Agrawal
- Department of Pathology, Wroclaw Medical University, ul. K. Marcinkowskiego, 150-368, Wrocław, Poland.,Department and Clinic of Internal Medicine, Occupational Diseases, Hypertension and Clinical Oncology, Wroclaw Medical University, Wrocław, Poland
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157
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Sarwar M, Sykes PH, Chitcholtan K, Evans JJ. Extracellular biophysical environment: Guilty of being a modulator of drug sensitivity in ovarian cancer cells. Biochem Biophys Res Commun 2020; 527:180-186. [PMID: 32446364 DOI: 10.1016/j.bbrc.2020.04.107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 04/21/2020] [Indexed: 01/10/2023]
Abstract
The roles of the extracellular biophysical environment in cancer are barely studied. This study considers the possibility that cell-like topography of a cancer cell environment may influence chemo-responses. Here, a novel bioimprinting technique was employed to produce cell-like topography on the polystyrene substrates used for cell culture. In this work, we have shown that extracellular biophysical cues generated from the topography alter the chemosensitivity of ovarian cancer cells. The three-dimensionality of the bioimprinted surface altered the cell-surface interaction, which consequently modulated intracellular signalling and chemoresponses. Sensitivity to platinum was altered more than that to paclitaxel. The effect was largely mediated through the integrin/focal adhesion system and the Rho/ROCK pathway. Moreover, the results provided evidence that biophysical cues also modulate MAPK signalling associated with chemo-resistance in ovarian cancer. Therefore, the novel findings from of this study revealed for the first time that the effects of the biophysical environment, such as substrate topography, influences ovarian cancer cell responses to clinical drugs. These observations suggest that a full clinical understanding of ovarian cancer will include biophysical aspects of tumour microenvironment.
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Affiliation(s)
- Makhdoom Sarwar
- Department of Obstetrics and Gynaecology, University of Otago, Christchurch, 2 Riccarton Avenue, Christchurch, 8011, New Zealand.
| | - Peter H Sykes
- Department of Obstetrics and Gynaecology, University of Otago, Christchurch, 2 Riccarton Avenue, Christchurch, 8011, New Zealand
| | - Kenny Chitcholtan
- Department of Obstetrics and Gynaecology, University of Otago, Christchurch, 2 Riccarton Avenue, Christchurch, 8011, New Zealand
| | - John J Evans
- Department of Obstetrics and Gynaecology, University of Otago, Christchurch, 2 Riccarton Avenue, Christchurch, 8011, New Zealand; MacDiarmid Institute of Advanced Materials and Nanotechnology, Christchurch, New Zealand
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158
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Khallaf SM, Roshdy J, Ibrahim A. Pegylated liposomal doxorubicin in patients with metastatic triple-negative breast cancer: 8-year experience of a single center. J Egypt Natl Canc Inst 2020; 32:20. [PMID: 32372114 DOI: 10.1186/s43046-020-00034-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 04/13/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The known efficacy of doxorubicin in metastatic breast cancer is countered by its dose-limiting myelosuppression and cardiotoxicity. Pegylated liposomal doxorubicin (PLD) was discovered to overcome these problems. But the data regarding its use in metastatic TNBC (triple-negative breast cancer) is still insufficient. Our study aimed to assess the factors affecting the outcome of the patients with metastatic TNBC who received PLD. RESULTS During a period of 8 years (January 2011-December 2018), we analyzed 39 eligible patients. The disease control rate (DCR) was 51.3%. Among all the analyzed factors, two of them significantly affected DCR. The first factor was the chemosensitivity to prior anthracycline. As patients with chemosensitive disease had higher DCR than those with the chemoresistant disease (P = .001). The second factor was the number of prior lines of chemotherapy. As the patients who received two prior lines had a higher DCR than those who received three lines or more (P = .023). Chemosensitivity was the only significant independent factor for DCR (odds ratio = .095, P = .008). For the studied patients, the median progression-free survival (PFS) was 7 months. The anthracycline-chemosensitivity was the only significant independent prognostic factor for PFS (P = .002). The median overall survival (OS) was 12 months. There was a marginally significant effect of anthracycline-chemosensitivity on OS (P = .052). CONCLUSION The anthracycline-chemosensitivity is an independent predictive and prognostic factor for the patients with metastatic TNBC receiving PLD. In developing countries, PLD should be reserved for the patients whose tumors are anthracycline-chemosensitive.
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Affiliation(s)
- Salah Mabrouk Khallaf
- Medical Oncology Lecturer, South Egypt Cancer Institute, Assiut University, Assiut, 71511, Egypt.
| | - Jasmine Roshdy
- Medical Oncology Lecturer, South Egypt Cancer Institute, Assiut University, Assiut, 71511, Egypt
| | - Abeer Ibrahim
- Medical Oncology Lecturer, South Egypt Cancer Institute, Assiut University, Assiut, 71511, Egypt
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Lee EY, Yu JY, Paek AR, Lee SH, Jang H, Cho SY, Kim JH, Kang HG, Yun T, Oh SE, Park SY, You HJ. Targeting TJP1 attenuates cell-cell aggregation and modulates chemosensitivity against doxorubicin in leiomyosarcoma. J Mol Med (Berl) 2020; 98:761-773. [PMID: 32318747 DOI: 10.1007/s00109-020-01909-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 03/30/2020] [Accepted: 04/03/2020] [Indexed: 12/24/2022]
Abstract
Tight junction protein 1 (TJP1) is a membrane-associated cytosolic protein important for cell-cell communication in intercellular barriers in epithelial and non-epithelial cells. Here, we explored the functional involvement of TJP1 in non-epithelial tumors such as soft tissue sarcoma, especially in leiomyosarcoma (LMS). TJP1 expression in soft tissue sarcoma was analyzed in normal and tumor tissues as well as from public datasets such as the TCGA provisional dataset, in which TJP1 expression was compared with other subtypes such as undifferentiated sarcomas, and myxofibrosarcomas. SK-LMS-1 cell lines with reduced TJP1 expression showed attenuated anchorage-independent colony formation as well as reduced intercellular aggregation on non-coated culture plates compared with control as well as parental SK-LMS-1 cells. Transcriptome profiling following TJP1 knockdown in SK-LMS-1 cells suggested the involvement of several signaling pathways, including NF-κB pathway and growth factor receptor signaling. In addition, TJP1 downregulation induced enhanced response against anti-cancer agents, doxorubicin and gefitinib. Taken together, these results suggest that TJP1 contributes to sarcoma genesis and might be useful therapeutic target. KEY MESSAGES: • TJP1 expression at RNA level higher in tumor than in normal tissues of sarcoma. • Targeting TJP1 attenuates cell-cell aggregation and anchorage-independent growth. • Targeting TJP1 is beneficial in anti-cancer therapy in LMS.
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Affiliation(s)
- Eun-Young Lee
- Division of Translational Science, Research Institute, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang, Gyeonggi, 10408, South Korea.,Department of Medical Biotechnology, Yeungnam University, 280 Daehak-ro, Gyeongsan, 38541, South Korea
| | - Jung Yeon Yu
- Division of Translational Science, Research Institute, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang, Gyeonggi, 10408, South Korea
| | - A Rome Paek
- Division of Translational Science, Research Institute, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang, Gyeonggi, 10408, South Korea
| | - So Hee Lee
- Division of Translational Science, Research Institute, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang, Gyeonggi, 10408, South Korea
| | - Hyonchol Jang
- Department of Cancer Biomedical Science, National Cancer Center Graduate School of Cancer Science and Policy (NCC-GCSP), National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang, Gyeonggi, 10408, South Korea.,Division of Cancer Biology, Research Institute, National Cancer Center, Goyang, South Korea
| | - Soo Young Cho
- Clinical Genomic Analysis Branch, Research Institute, National Cancer Center, Goyang, South Korea
| | - June Hyuk Kim
- National Cancer Center Hospital, National Cancer Center, Goyang, South Korea
| | - Hyun Guy Kang
- National Cancer Center Hospital, National Cancer Center, Goyang, South Korea
| | - Tak Yun
- National Cancer Center Hospital, National Cancer Center, Goyang, South Korea
| | - Sung Eun Oh
- National Cancer Center Hospital, National Cancer Center, Goyang, South Korea
| | - Seog Yun Park
- National Cancer Center Hospital, National Cancer Center, Goyang, South Korea
| | - Hye Jin You
- Division of Translational Science, Research Institute, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang, Gyeonggi, 10408, South Korea. .,Department of Cancer Biomedical Science, National Cancer Center Graduate School of Cancer Science and Policy (NCC-GCSP), National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang, Gyeonggi, 10408, South Korea.
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160
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Hu L, Bai Z, Ma X, Bai N, Zhang Z. The Influence of Bcl-3 Expression on Cell Migration and Chemosensitivity of Gastric Cancer Cells via Regulating Hypoxia-Induced Protective Autophagy. J Gastric Cancer 2020; 20:95-105. [PMID: 32269848 PMCID: PMC7105414 DOI: 10.5230/jgc.2020.20.e9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 01/15/2020] [Accepted: 02/24/2020] [Indexed: 11/22/2022] Open
Abstract
Purpose Gastric cancer is a highly metastatic malignant tumor, often characterized by chemoresistance and high mortality. In the present study, we aimed to investigate the role of B-cell lymphoma 3 (Bcl-3) protein on cell migration and chemosensitivity of gastric cancer. Materials and Methods The gastric cancer cell lines, AGS and NCI-N87, were used for the in vitro studies and the in vivo studies were performed using BALB/c nude mice. Western blotting, wound healing assay, Cell Counting Kit-8 assay, immunohistochemistry, and terminal deoxynucleotidyl transferase dUTP nick end labeling assay were used to evaluate the role of Bcl-3 in gastric cancer. Results We found that the protein expression of hypoxia (HYP)-inducible factor-1α and Bcl-3 were markedly upregulated under hypoxic conditions in both AGS and NCI-N87 cells in a time-dependent manner. Interestingly, small interfering RNA-mediated knockdown of Bcl-3 expression affected the migration and chemosensitivity of the gastric cancer cells. AGS and NCI-N87 cells transfected with si-RNA-Bcl-3 (si-Bcl-3) showed significantly reduced migratory ability and increased chemosensitivity to oxaliplatin, 5-fluorouracil, and irinotecan. In addition, si-Bcl-3 restored the autophagy induced by HYP. Further, the protective role of si-Bcl-3 on the gastric cancer cells could be reversed by the autophagy inducer, rapamycin. Importantly, the in vivo xenograft tumor experiments showed similar results. Conclusions Our present study reveals that Bcl-3 knockdown inhibits cell migration and chemoresistance of gastric cancer cells through restoring HYP-induced autophagy.
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Affiliation(s)
- Lin Hu
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Zhigang Bai
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Xuemei Ma
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Nan Bai
- Department of General Surgery, Beijing Jishuitan Hospital, The 4th Medical College of Peking University, Beijing, China
| | - Zhongtao Zhang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Beijing, China
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Qu X, Gao H, Zhai J, Sun J, Tao L, Zhang Y, Song Y, Hu T. Astragaloside IV enhances cisplatin chemosensitivity in hepatocellular carcinoma by suppressing MRP2. Eur J Pharm Sci 2020; 148:105325. [PMID: 32259679 DOI: 10.1016/j.ejps.2020.105325] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 02/06/2023]
Abstract
Decreased chemosensitivity among tumor cells is often an obstacle in cisplatin (Cis) chemotherapy. Overexpression of multidrug resistance-associated protein 2 (MRP2) is a key mechanism underlying decreased Cis chemosensitivity and resistance. Astragaloside IV (AS IV) is an important component derived from the well-known traditional Chinese herb Astragalus membranaceus. The aim of this study was to explore the role of AS IV in enhancing the antitumor effect of Cis by suppressing MRP2 expression in HepG2 cells and H22 tumor-bearing mice. After co-treatment of HepG2 cells with Cis and AS IV, we assessed the effects on cell proliferation and apoptosis. Tumor growth and apoptosis assessment were performed to assess chemosensitivity in H22 tumor-bearing mice. We used western blotting, immunofluorescence assays, and immunohistochemistry assays to detect MRP2 expression in HepG2 cells, H22 tumor tissues and mouse kidney tissues. AS IV enhanced Cis chemosensitivity by increasing tumor cell apoptosis and slowing tumor growth in vitro and in vivo. MRP2 overexpression in tumor cells was induced by Cis, which contributes to decreased chemosensitivity and Cis resistance. Co-administration of AS IV suppressed MRP2 expression in tumor tissues, which might be an important mechanism for enhancing Cis chemosensitivity in hepatocellular carcinoma. Moreover, AS IV alleviated Cis-induced kidney injury in mice without changing MRP2 expression. In total, AS IV enhanced the antitumor effect of Cis against hepatocellular carcinoma by suppressing MRP2 expression in tumor cells. The results provide a new insight into the combined use of a chemotherapy drug and natural ingredients to treat cancer.
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Affiliation(s)
- Xiaoyu Qu
- Department of Pharmacy, the First Hospital of Jilin University, Changchun 130021, China
| | - Huan Gao
- Department of Pharmacy, the First Hospital of Jilin University, Changchun 130021, China
| | - Jinghui Zhai
- Department of Pharmacy, the First Hospital of Jilin University, Changchun 130021, China
| | - Jingmeng Sun
- Department of Pharmacy, the First Hospital of Jilin University, Changchun 130021, China
| | - Lina Tao
- Department of Pharmacy, the First Hospital of Jilin University, Changchun 130021, China
| | - Yueming Zhang
- Department of Pharmacy, the First Hospital of Jilin University, Changchun 130021, China
| | - Yanqing Song
- Department of Pharmacy, the First Hospital of Jilin University, Changchun 130021, China.
| | - Tingting Hu
- Department of Technical center, Changchun customs district, Changchun 130062, China.
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Vicente MC, Humphrey CM, Gargaglioni LH, Ostrowski TD. Decreased excitability of locus coeruleus neurons during hypercapnia is exaggerated in the streptozotocin-model of Alzheimer's disease. Exp Neurol 2020; 328:113250. [PMID: 32088169 DOI: 10.1016/j.expneurol.2020.113250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 02/04/2020] [Accepted: 02/17/2020] [Indexed: 10/25/2022]
Abstract
The locus coeruleus (LC) is a pontine nucleus important for respiratory control and central chemoreception. It is affected in Alzheimer's disease (AD) and alteration of LC cell function may account for respiratory problems observed in AD patients. In the current study, we tested the electrophysiological properties and CO2/pH sensitivity of LC neurons in a model for AD. Sporadic AD was induced in rats by intracerebroventricular injection of 2 mg/kg streptozotocin (STZ), which induces behavioral and molecular impairments found in AD. LC neurons were recorded using the patch clamp technique and tested for responses to CO2 (10% CO2, pH = 7.0). The majority (~60%) of noradrenergic LC neurons in adult rats were inhibited by CO2 exposure as indicated by a significant decrease in action potential (AP) discharge to step depolarizations. The STZ-AD rat model had a greater sensitivity to CO2 than controls. The increased CO2-sensitivity was demonstrated by a significantly stronger inhibition of activity during hypercapnia that was in part due to hyperpolarization of the resting membrane potential. Reduction of AP discharge in both groups was generally accompanied by lower LC network activity, depolarized AP threshold, increased AP repolarization, and increased current through a subpopulation of voltage-gated K+ channels (KV). The latter was indicated by enhanced transient KV currents particularly in the STZ-AD group. Interestingly, steady-state KV currents were reduced under hypercapnia, a change that would favor enhanced AP discharge. However, the collective response of most LC neurons in adult rats, and particularly those in the STZ-AD group, was inhibited by CO2.
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Affiliation(s)
- Mariane C Vicente
- Department of Physiology, Kirksville College of Osteopathic Medicine, A.T. Still University of Health Sciences, Kirksville, MO, USA; Department of Animal Morphology and Physiology, Sao Paulo State University-UNESP/FCAV at Jaboticabal, SP, Brazil
| | - Chuma M Humphrey
- Department of Biology, Truman State University, Kirksville, MO, USA
| | - Luciane H Gargaglioni
- Department of Animal Morphology and Physiology, Sao Paulo State University-UNESP/FCAV at Jaboticabal, SP, Brazil
| | - Tim D Ostrowski
- Department of Physiology, Kirksville College of Osteopathic Medicine, A.T. Still University of Health Sciences, Kirksville, MO, USA.
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163
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Li Y, Jiang Y, Cheng J, Ma J, Li Q, Pang T. ATG5 regulates mesenchymal stem cells differentiation and mediates chemosensitivity in acute myeloid leukemia. Biochem Biophys Res Commun 2020; 525:398-405. [PMID: 32098672 DOI: 10.1016/j.bbrc.2020.02.091] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Accepted: 02/12/2020] [Indexed: 12/19/2022]
Abstract
Autophagy is related to the development of several tumors including acute myeloid leukemia (AML). Inhibition of autophagy in AML cells can make them more susceptible to chemotherapy. However, the influence of autophagy in mesenchymal stem cells (MSCs) remains inconclusive. In the present study, we demonstrated that the expression of ATG5 and autophagy were elevated in MSCs derived from AML patients (AML-MSCs) compared to healthy donors (HD-MSCs). After inhibiting autophagy by 3-Methyladenine (3 MA) or silencing ATG5, the differentiation potential of AML-MSCs was decreased, the fraction of G0/G1 phase was increased while that of G2 phase was reduced, and the expression of CXCL12 was reduced in AML-MSCs. After co-culture of NB4 and THP1 with MSCs pretreated with 3 MA or ATG5 knockdown respectively, the sensitivity of AML cell lines to daunorubicin and doxorubicin was improved in a dose- and time-dependent manner compared to controls. The increased sensitivity of AML cells to genotoxic agents was related to ERK1/2 and AKT pathway. These results suggested ATG5 mediated potential differentiation capacities and cell cycle distribution of AML-MSCs, and targeting autophagy, especially ATG5 in AML-MSCs could improve the chemosensitivity of AML.
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Affiliation(s)
- Ying Li
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Disease, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Yajing Jiang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Disease, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Jingying Cheng
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Disease, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Jiao Ma
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Disease, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Qinghua Li
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Disease, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Tianxiang Pang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Disease, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China.
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164
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Wang B, Guan G, Zhao D. Silence of FAM83H-AS1 promotes chemosensitivity of gastric cancer through Wnt/β-catenin signaling pathway. Biomed Pharmacother 2020; 125:109961. [PMID: 32028241 DOI: 10.1016/j.biopha.2020.109961] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 01/18/2020] [Accepted: 01/23/2020] [Indexed: 02/07/2023] Open
Abstract
Gastric cancer (GC) is a malignant tumor originated from the epithelium of gastric mucosa, its incidence is second only to lung cancer in China. Chemotherapy is one of the most effective methods to treat GC, but some patients are insensitive to chemotherapeutic drugs, leading to chemotherapy failure. In this study, the expression of FAM83H-AS1 was up-regulated in GC tissues and cell lines, and was related to differentiation, invasion depth and chemotherapy insensitivity of GC patients. FAM83H-AS1 was high-expressed in chemoresistant GC tissues and cell line (SGC7901/R), and silence of FAM83H-AS1 sensitized SGC7901/R cells to cisplatin (CDDP) and 5-fluorouracil (5-FU). In addition, silence of FAM83H-AS1 could inactivate Wnt/β-catenin signaling pathway in SGC7901/R cells. The activating of Wnt/β-catenin signaling pathway reversed the promoting effect of FAM83H-AS1 silence on chemotherapy sensitivity, which meant Wnt/β-catenin signaling pathway mediated the regulation of FAM83H-AS1 on chemotherapy sensitivity in SGC7901/R cells. In conclusion, FAM83H-AS1 is related with the CDDP and 5-FU insensitivity of GC patients, silence of FAM83H-AS1 promotes chemosensitivity of GC through Wnt/β-catenin signaling pathway.
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165
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Reiter RJ, Sharma R, Ma Q, Rorsales-Corral S, de Almeida Chuffa LG. Melatonin inhibits Warburg-dependent cancer by redirecting glucose oxidation to the mitochondria: a mechanistic hypothesis. Cell Mol Life Sci 2020; 77:2527-2542. [PMID: 31970423 DOI: 10.1007/s00018-019-03438-1] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 12/16/2019] [Accepted: 12/23/2019] [Indexed: 12/16/2022]
Abstract
Melatonin has the ability to intervene in the initiation, progression and metastasis of some experimental cancers. A large variety of potential mechanisms have been advanced to describe the metabolic and molecular events associated with melatonin's interactions with cancer cells. There is one metabolic perturbation that is common to a large number of solid tumors and accounts for the ability of cancer cells to actively proliferate, avoid apoptosis, and readily metastasize, i.e., they use cytosolic aerobic glycolysis (the Warburg effect) to rapidly generate the necessary ATP required for the high metabolic demands of the cancer cells. There are several drugs, referred to as glycolytic agents, that cause cancer cells to abandon aerobic glycolysis and shift to the more conventional mitochondrial oxidative phosphorylation for ATP synthesis as in normal cells. In doing so, glycolytic agents also inhibit cancer growth. Herein, we hypothesize that melatonin also functions as an inhibitor of cytosolic glycolysis in cancer cells using mechanisms, i.e., downregulation of the enzyme (pyruvate dehydrogenase kinase) that interferes with the conversion of pyruvate to acetyl CoA in the mitochondria, as do other glycolytic drugs. In doing so, melatonin halts the proliferative activity of cancer cells, reduces their metastatic potential and causes them to more readily undergo apoptosis. This hypothesis is discussed in relation to the previously published reports. Whereas melatonin is synthesized in the mitochondria of normal cells, we hypothesize that this synthetic capability is not present in cancer cell mitochondria because of the depressed acetyl CoA; acetyl CoA is necessary for the rate limiting enzyme in melatonin synthesis, arylalkylamine-N-acetyltransferase. Finally, the ability of melatonin to switch glucose oxidation from the cytosol to the mitochondria also explains how tumors that become resistant to conventional chemotherapies are re-sensitized to the same treatment when melatonin is applied.
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Affiliation(s)
- Russel J Reiter
- Department of Cell Systems and Anatomy, UT Health San Antonio, San Antonio, TX, USA.
| | - Ramaswamy Sharma
- Department of Cell Systems and Anatomy, UT Health San Antonio, San Antonio, TX, USA
| | - Qiang Ma
- Department of Cell Systems and Anatomy, UT Health San Antonio, San Antonio, TX, USA
| | - Sergio Rorsales-Corral
- Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Mexico
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Lou G, Chen L, Xia C, Wang W, Qi J, Li A, Zhao L, Chen Z, Zheng M, Liu Y. MiR-199a-modified exosomes from adipose tissue-derived mesenchymal stem cells improve hepatocellular carcinoma chemosensitivity through mTOR pathway. J Exp Clin Cancer Res 2020; 39:4. [PMID: 31898515 PMCID: PMC6941283 DOI: 10.1186/s13046-019-1512-5] [Citation(s) in RCA: 166] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 12/18/2019] [Indexed: 02/07/2023]
Abstract
Background MiR-199a-3p (miR-199a) can enhance the chemosensitivity of hepatocellular carcinoma (HCC). Because of the easy degradation of miRNA by direct infusion, effective vehicle-mediated delivery of miR-199a may represent a new strategy for improving HCC chemotherapy. Considering mesenchymal stem cell (MSC)-derived exosomes as promising natural nanovectors for drug and molecule delivery, we aimed to determine whether exosomes from adipose tissue-derived MSCs (AMSCs) could be used to deliver miR-199a and improve HCC chemosensitivity. Methods MiR-199a-modified AMSCs (AMSC-199a) were constructed by miR-199a lentivirus infection and puromycin selection. MiR-199-modified exosomes (AMSC-Exo-199a) were isolated from the supernatant of AMSC-199a and were assessed by transmission electron microscopy, nanoparticle tracking analysis, and flow cytometry analysis. The expression levels of miR-199a in HCC samples, AMSCs, exosomes, and HCC cells were quantified by real-time PCR. The effects of AMSC-Exo-199a on HCC chemosensitivity were determined by cell proliferation and apoptosis assays and by i.v. injection into orthotopic HCC mouse models with doxorubicin treatment. MTOR, p-4EBP1 and p-70S6K levels in HCC cells and tissues were quantified by Western blot. Results AMSC-Exo-199a had the classic characteristics of exosomes and could effectively mediate miR-199a delivery to HCC cells. Additionally, AMSC-Exo-199a significantly sensitized HCC cells to doxorubicin by targeting mTOR and subsequently inhibiting the mTOR pathway. Moreover, i.v.-injected AMSC-Exo-199a could distribute to tumor tissue and markedly increased the effect of Dox against HCC in vivo. Conclusions AMSC-Exo-199a can be an effective vehicle for miR-199a delivery, and they effectively sensitized HCC to chemotherapeutic agents by targeting mTOR pathway. AMSC-Exo-199a administration may provide a new strategy for improving HCC chemosensitivity.
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Affiliation(s)
- Guohua Lou
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79# Qingchun Road, 6A-17, Hangzhou, 310003, China
| | - Liang Chen
- Thyroid Disease Diagnosis and Treatment Center, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Caixia Xia
- Department of Infectious Diseases, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Weina Wang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79# Qingchun Road, 6A-17, Hangzhou, 310003, China
| | - Jinjin Qi
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79# Qingchun Road, 6A-17, Hangzhou, 310003, China
| | - Aichun Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79# Qingchun Road, 6A-17, Hangzhou, 310003, China
| | - Liying Zhao
- Department of Infectious Disease, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhi Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79# Qingchun Road, 6A-17, Hangzhou, 310003, China
| | - Min Zheng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79# Qingchun Road, 6A-17, Hangzhou, 310003, China.
| | - Yanning Liu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, 79# Qingchun Road, 6A-17, Hangzhou, 310003, China.
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Yi W, Tu MJ, Liu Z, Zhang C, Batra N, Yu AX, Yu AM. Bioengineered miR-328-3p modulates GLUT1-mediated glucose uptake and metabolism to exert synergistic antiproliferative effects with chemotherapeutics. Acta Pharm Sin B 2020; 10:159-170. [PMID: 31993313 PMCID: PMC6976971 DOI: 10.1016/j.apsb.2019.11.001] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/16/2019] [Accepted: 10/31/2019] [Indexed: 12/15/2022] Open
Abstract
MicroRNAs (miRNAs or miRs) are small noncoding RNAs derived from genome to control target gene expression. Recently we have developed a novel platform permitting high-yield production of bioengineered miRNA agents (BERA). This study is to produce and utilize novel fully-humanized BERA/miR-328-3p molecule (hBERA/miR-328) to delineate the role of miR-328-3p in controlling nutrient uptake essential for cell metabolism. We first demonstrated successful high-level expression of hBERA/miR-328 in bacteria and purification to high degree of homogeneity (>98%). Biologic miR-328-3p prodrug was selectively processed to miR-328-3p to suppress the growth of highly-proliferative human osteosarcoma (OS) cells. Besides glucose transporter protein type 1, gene symbol solute carrier family 2 member 1 (GLUT1/SLC2A1), we identified and verified large neutral amino acid transporter 1, gene symbol solute carrier family 7 member 5 (LAT1/SLC7A5) as a direct target for miR-328-3p. While reduction of LAT1 protein levels by miR-328-3p did not alter homeostasis of amino acids within OS cells, suppression of GLUT1 led to a significantly lower glucose uptake and decline in intracellular levels of glucose and glycolytic metabolite lactate. Moreover, combination treatment with hBERA/miR-328 and cisplatin or doxorubicin exerted a strong synergism in the inhibition of OS cell proliferation. These findings support the utility of novel bioengineered RNA molecules and establish an important role of miR-328-3p in the control of nutrient transport and homeostasis behind cancer metabolism.
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Key Words
- 2-NBDG, 2-[N-(7-nitrobenz-2-oxa-1,3-diazol-4-yl) amino]-2-deoxyglucose
- ABCG2, ATP-binding cassette subfamily G member 2
- ACN, acetonitrile
- Au/Uv, absorbance unit of ultraviolet-visible spectroscopy
- BCRP, breast cancer resistant protein
- BERA, bioengineered miRNA agent
- Bioengineered RNA
- CI, combination index
- CPT, cisplatin
- Cancer
- Chemosensitivity
- DOX, doxorubicin
- E. coli, Escherichia coli
- ESI, electrospray ionization
- FPLC, fast protein liquid chromatography
- Fa, fraction affected
- GLUT1
- GLUT1, glucose transporter protein type 1
- HCC, hepatocellular carcinoma
- HPLC, high-performance liquid chromatography
- IS, internal standard
- KRB, Krebs–Ringer bicarbonate
- LAT1
- LAT1, large neutral amino acid transporter 1
- LC–MS/MS, liquid chromatography–tandem mass spectroscopy
- MCT4, monocarboxylate transporter 4
- MRE, miRNA response elements
- MRM, multiple reaction monitoring
- MiR-328
- OS, osteosarcoma
- PAGE, polyacrylamide gel electrophoresis
- PTEN, phosphatase and tensin homolog
- PVDF, Polyvinylidene fluoride
- RAGE, receptor for advanced glycosylation end products
- RT-qPCR, reverse transcription quantitative real-time polymerase chain reaction
- SLC2A1, 7A5, 16A3, solute carrier family 2 member 1, family 7 member 5, family 16 member 3
- WT, wild type
- hBERA, humanized bioengineered miRNA agent
- hsa, Homo sapiens
- htRNASer, human seryl-tRNA
- mTOR, mammalian target of rapamycin
- miR or miRNA, microRNA
- ncRNA, noncoding RNAs
- nt, nucleotide
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Affiliation(s)
- Wanrong Yi
- Department of Orthopaedic Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan 430072, China
- Department of Biochemistry & Molecular Medicine, UC Davis School of Medicine, Sacramento 95817, CA, USA
| | - Mei-Juan Tu
- Department of Biochemistry & Molecular Medicine, UC Davis School of Medicine, Sacramento 95817, CA, USA
| | - Zhenzhen Liu
- Department of Biochemistry & Molecular Medicine, UC Davis School of Medicine, Sacramento 95817, CA, USA
| | - Chao Zhang
- Department of Biochemistry & Molecular Medicine, UC Davis School of Medicine, Sacramento 95817, CA, USA
| | - Neelu Batra
- Department of Biochemistry & Molecular Medicine, UC Davis School of Medicine, Sacramento 95817, CA, USA
| | - Ai-Xi Yu
- Department of Orthopaedic Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan 430072, China
| | - Ai-Ming Yu
- Department of Biochemistry & Molecular Medicine, UC Davis School of Medicine, Sacramento 95817, CA, USA
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Hou J, Tan Y, Su C, Wang T, Gao Z, Song D, Zhao J, Liao Y, Liu X, Jiang Y, Feng Q, Wan Z, Yu Y. Inhibition of protein FAK enhances 5-FU chemosensitivity to gastric carcinoma via p53 signaling pathways. Comput Struct Biotechnol J 2020; 18:125-36. [PMID: 31969973 DOI: 10.1016/j.csbj.2019.12.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 12/17/2019] [Accepted: 12/18/2019] [Indexed: 02/05/2023] Open
Abstract
The small molecule drug 5-fluorouracil (5-FU) is widely used in the treatment for gastric cancer (GC), however, it exerts poor efficacy and is associated with acquired and intrinsic resistance. Focal adhesion kinase (FAK), a non-receptor tyrosine kinase, plays a key role in adhesion, migration, and proliferation of gastric carcinoma cells, suggesting that this kinase may be a promising therapeutic target. Differentially expressed FAK in GC tissue was detected by RT-qPCR and TCGA database analysis. To investigate the biological functions of FAK, loss-of-function experiments were performed. CCK-8 assay, colony formation assay, flow cytometry, dual-luciferase reporter assays, and western blot assays were conducted to determine the underlying mechanisms of FAK in 5-FU chemosensitivity in GC. FAK is overexpressed in GC patients, and positively correlated with poor prognosis. The use of shRNA interference to target FAK decreased proliferation and increased apoptosis of GC cells in vitro. Importantly, FAK silencing enhanced the therapeutic efficacy of 5-FU, leading to reduced tumor growth in vivo. We further demonstrated that FAK silencing increased 5-FU-induced caspase-3 activity, and promoted p53 transcriptional activities. Clinical data also has shown that patients with higher levels of FAK had significantly shorter overall survival (OS) and time to first progression (FP) than those with lower levels of FAK. These findings indicate that FAK plays a critical role in 5-FU chemosensitivity in GC, and the use of FAK inhibitors as an adjunct to 5-FU might be an effective strategy for patients who undergo chemotherapy.
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169
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Mao F, Zhang J, Cheng X, Xu Q. miR-149 inhibits cell proliferation and enhances chemosensitivity by targeting CDC42 and BCL2 in neuroblastoma. Cancer Cell Int 2019; 19:357. [PMID: 31889909 PMCID: PMC6935209 DOI: 10.1186/s12935-019-1082-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 12/18/2019] [Indexed: 12/11/2022] Open
Abstract
Background Neuroblastoma (NB) is one of most common childhood tumors with high mortality among children worldwide. microRNAs (miRNAs) have been reported to play essential roles in the pathogenesis and therapeutics of NB. However, the role of miR-149 and its mechanism remain poorly understood. Main methods The expression levels of miR-149, cell division cycle 42 (CDC42) and B-cell lymphoma 2 (BCL2) were measured in NB tissues or cells by quantitative real-time polymerase chain reaction or western blot. Cell proliferation was measured by 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) and colony formation assays. Cell apoptosis was detected by flow cytometry. Chemosensitivity of NB cells to doxorubicin (Dox) was analyzed by MTT assay. The interaction between miR-149 and CDC42 or BCL2 was explored by luciferase activity and RNA immunoprecipitation analyses. Results Our data indicated that low expression of miR-149 was displayed in NB tissues and cells and associated with poor survival rate. Overexpression of miR-149 inhibited cell proliferation and colony formation but promoted cell apoptosis and chemosensitivity to Dox in NB cells. Moreover, CDC42 and BCL2 were targeted by miR-149. Additionally, CDC42 and BCL2 mRNA levels were elevated in NB tissues and cells and restoration of CDC42 or BCL2 reversed the regulatory effect of miR-149 on NB progression. Conclusion Our data suggested that miR-149 suppressed cell proliferation and improved Dox chemosensitivity by regulating CDC42 and BCL2 in NB, providing a novel avenue for treatment of NB.
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Affiliation(s)
- Fengxia Mao
- Department of Newborn Pediatrics, The First Affiliated Hospital of Zhengzhou University, No.1, East Jianshe Rd, Zhengzhou, 450052 China
| | - Ju Zhang
- Department of Newborn Pediatrics, The First Affiliated Hospital of Zhengzhou University, No.1, East Jianshe Rd, Zhengzhou, 450052 China
| | - Xinru Cheng
- Department of Newborn Pediatrics, The First Affiliated Hospital of Zhengzhou University, No.1, East Jianshe Rd, Zhengzhou, 450052 China
| | - Qianya Xu
- Department of Newborn Pediatrics, The First Affiliated Hospital of Zhengzhou University, No.1, East Jianshe Rd, Zhengzhou, 450052 China
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Ma X, Qiu Y, Zhu L, Zhao Y, Lin Y, Ma D, Qin Z, Sun C, Shen X, Li T, Han L. NOD1 inhibits proliferation and enhances response to chemotherapy via suppressing SRC-MAPK pathway in hepatocellular carcinoma. J Mol Med (Berl) 2019; 98:221-232. [PMID: 31872284 DOI: 10.1007/s00109-019-01868-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 11/25/2019] [Accepted: 12/10/2019] [Indexed: 12/13/2022]
Abstract
NOD1 is an innate immune sensor playing an important role in fighting against infection. However, its role in cancer is far from being clarified, and whether NOD1 plays a role in the progression of hepatocellular carcinoma (HCC) has never been reported. Here, we found that NOD1 expression was significantly decreased in hepatocellular carcinoma tissues and overexpression of NOD1 significantly inhibited tumorigenesis in vivo. In vitro experiments demonstrated that NOD1 inhibited proliferation of HCC cells by directly targeting proto-oncogene SRC and inducing cell cycle arrest at G1 phase. Further investigation showed that NOD1 exerted its antitumor effect by inhibiting SRC activation and further suppressing SRC/MAPK axis in hepatocellular carcinoma cells. Moreover, NOD1 dramatically enhanced the response of HCC cells to chemotherapy via inhibition of SRC-MAPK axis both in vitro and in vivo. Collectively, these data indicated that NOD1 suppressed proliferation and enhanced response to sorafenib or 5-FU treatment through inhibiting SRC-MAPK axis in hepatocellular carcinoma. KEY MESSAGES: NOD1 significantly inhibited tumorigenesis of HCC in cellular and animal models. NOD1 inhibited proliferation of HCC cells by inducing cell cycle arrest. NOD1 exerted its antitumor effect on HCC by directly interacting with SRC and inhibiting SRC-MAPK axis. NOD1 significantly enhanced the chemosensitivity of HCC cells to chemotherapeutic drugs.
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Affiliation(s)
- Xiaomin Ma
- Shandong Provincial Key Laboratory of Infection & Immunology, Department of Immunology, Shandong University School of Basic Medical Sciences, 44 Wenhua Xi Road, Jinan, 250012, China
| | - Yumin Qiu
- Shandong Provincial Key Laboratory of Infection & Immunology, Department of Immunology, Shandong University School of Basic Medical Sciences, 44 Wenhua Xi Road, Jinan, 250012, China
| | - Lihui Zhu
- Shandong Provincial Key Laboratory of Infection & Immunology, Department of Immunology, Shandong University School of Basic Medical Sciences, 44 Wenhua Xi Road, Jinan, 250012, China
| | - Yunxue Zhao
- Department of Pharmacology, Shandong University School of Basic Medical Sciences, Jinan, 250012, China
| | - Yueke Lin
- Shandong Provincial Key Laboratory of Infection & Immunology, Department of Immunology, Shandong University School of Basic Medical Sciences, 44 Wenhua Xi Road, Jinan, 250012, China
| | - Dapeng Ma
- Shandong Provincial Key Laboratory of Infection & Immunology, Department of Immunology, Shandong University School of Basic Medical Sciences, 44 Wenhua Xi Road, Jinan, 250012, China
| | - Zhenzhi Qin
- Shandong Provincial Key Laboratory of Infection & Immunology, Department of Immunology, Shandong University School of Basic Medical Sciences, 44 Wenhua Xi Road, Jinan, 250012, China
| | - Caiyu Sun
- Shandong Provincial Key Laboratory of Infection & Immunology, Department of Immunology, Shandong University School of Basic Medical Sciences, 44 Wenhua Xi Road, Jinan, 250012, China
| | - Xuecheng Shen
- Shandong Provincial Key Laboratory of Infection & Immunology, Department of Immunology, Shandong University School of Basic Medical Sciences, 44 Wenhua Xi Road, Jinan, 250012, China
| | - Tao Li
- Department of Gastroenterology, Provincial Hospital Affiliated with Shandong University, Jinan, 250021, China
| | - Lihui Han
- Shandong Provincial Key Laboratory of Infection & Immunology, Department of Immunology, Shandong University School of Basic Medical Sciences, 44 Wenhua Xi Road, Jinan, 250012, China.
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Wang B, Wu ZH, Lou PY, Chai C, Han SY, Ning JF, Li M. Human bone marrow-derived mesenchymal stem cell-secreted exosomes overexpressing microRNA-34a ameliorate glioblastoma development via down-regulating MYCN. Cell Oncol (Dordr) 2019; 42:783-799. [PMID: 31332647 DOI: 10.1007/s13402-019-00461-z] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/17/2019] [Indexed: 12/20/2022] Open
Abstract
PURPOSE Exosomes play important roles in intercellular communication through signaling pathways affecting tumor microenvironment modulation and tumor proliferation, including those in glioblastoma (GBM). As yet, however, limited studies have been conducted on the inhibitory effect of human bone marrow-derived mesenchymal stem cell (hBMSC)-derived exosomes on GBM development. Therefore, we set out to assess the role of hBMSC secreted exosomes, in particular those carrying microRNA-34a (miR-34a), in the development of GBM. METHODS Microarray-based expression analysis was employed to identify differentially expressed genes and to predict miRNAs regulating MYCN expression. Next, hBMSCs were transfected with a miR-34a mimic or inhibitor after which exosomes were isolated. Proliferation, apoptosis, migration, invasion and temozolomide (TMZ) chemosensitivity of exosome-exposed GBM cells (T-98G, LN229 and A-172) were measured in vitro. The mechanism underlying MYCN regulation was investigated using lentiviral transfections. The in vivo inhibitory effect of exosomal miR-34a was measured in nude mice xenografted with GBM cells through subcutaneous injection of hBMSCs with an upregulated miR34a content. RESULTS We found that poorly-expressed miR-34a specifically targeted and negatively regulated the expression of MYCN in GBM cells. In addition we found that miR-34a was delivered to T-98G, LN229 and A-172 GBM cells via hBMSC-derived exosomes. Exogenous overexpression of miR-34a in hBMSC-derived exosomes resulted in inhibition of GBM cell proliferation, invasion, migration and tumorigenesis in vitro and in vivo, while promoting the chemosensitivity of GBM cells to TMZ by silencing MYCN. CONCLUSIONS From our data we conclude that hBMSC-derived exosomes overexpressing miR-34a may be instrumental for the therapeutic targeting and clinical management of GBM.
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Affiliation(s)
- Bin Wang
- Department of Neurosurgery, Henan Province People's Hospital, Zhengzhou University, No. 7, Weiwu Road, Zhengzhou, 450003, Henan Province, People's Republic of China
- Department of Neurosurgery, People's Hospital Affiliated with Zhengzhou University, No. 7, Weiwu Road, Zhengzhou, 450003, Henan Province, People's Republic of China
- Department of Neurosurgery, People's Hospital Affiliated with Medical college of Henan University, No. 7, Weiwu Road, Zhengzhou, 450003, Henan Province, People's Republic of China
| | - Zhong-Hua Wu
- Department of Neurosurgery, Henan Province People's Hospital, Zhengzhou University, No. 7, Weiwu Road, Zhengzhou, 450003, Henan Province, People's Republic of China
- Department of Neurosurgery, People's Hospital Affiliated with Zhengzhou University, No. 7, Weiwu Road, Zhengzhou, 450003, Henan Province, People's Republic of China
- Department of Neurosurgery, People's Hospital Affiliated with Medical college of Henan University, No. 7, Weiwu Road, Zhengzhou, 450003, Henan Province, People's Republic of China
| | - Ping-Yang Lou
- Department of Neurosurgery, Henan Province People's Hospital, Zhengzhou University, No. 7, Weiwu Road, Zhengzhou, 450003, Henan Province, People's Republic of China
- Department of Neurosurgery, People's Hospital Affiliated with Zhengzhou University, No. 7, Weiwu Road, Zhengzhou, 450003, Henan Province, People's Republic of China
- Department of Neurosurgery, People's Hospital Affiliated with Medical college of Henan University, No. 7, Weiwu Road, Zhengzhou, 450003, Henan Province, People's Republic of China
| | - Chang Chai
- Department of Ophthalmology, Henan Province People's Hospital, Zhengzhou University, Zhengzhou, 450003, People's Republic of China
| | - Shuang-Yin Han
- Center for Translational Medicine, Henan Province People's Hospital, Zhengzhou University, Zhengzhou, 450003, People's Republic of China
| | - Jian-Fang Ning
- Department of Neurosurgery, University of Minnesota, Minneapolis, 55455, USA
| | - Ming Li
- Department of Neurosurgery, Henan Province People's Hospital, Zhengzhou University, No. 7, Weiwu Road, Zhengzhou, 450003, Henan Province, People's Republic of China.
- Department of Neurosurgery, People's Hospital Affiliated with Zhengzhou University, No. 7, Weiwu Road, Zhengzhou, 450003, Henan Province, People's Republic of China.
- Department of Neurosurgery, People's Hospital Affiliated with Medical college of Henan University, No. 7, Weiwu Road, Zhengzhou, 450003, Henan Province, People's Republic of China.
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172
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Khandelwal M, Anand V, Appunni S, Seth A, Singh P, Mathur S, Sharma A. RASSF1A-Hippo pathway link in patients with urothelial carcinoma of bladder: plausible therapeutic target. Mol Cell Biochem 2019; 464:51-63. [PMID: 31754973 DOI: 10.1007/s11010-019-03648-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 11/03/2019] [Indexed: 12/24/2022]
Abstract
RASSF1A is a tumor suppressor gene, and its hypermethylation has been observed in cancers. RASSF1A acts as an upstream regulator of Hippo pathway and modulates its function. The aim of this study was to analyze expression of RASSF1A, Hippo pathway molecules (YAP, MST) and downstream targets (CTGF, Cyr61 and AREG) in bladder cancer patients. Later, the link between RASSF1A and Hippo pathway and a potential therapeutic scope of this link in UBC were also studied. MSPCR was performed to study methylation of RASSF1A promoter. Expression of molecules was studied using qPCR, Western blot and IHC. The link between RASSF1A and Hippo pathway was studied using Spearman's correlation in patients and validated by overexpressing RASSF1A in HT1376 cells and its effect on Hippo pathway was observed using qPCR and Western blot. Further therapeutic potential of this link was studied using MTT and PI assays. The expression of RASSF1A was lower, whereas the expression of YAP, CTGF and CYR61 was higher. The expression of RASSF1A protein gradually decreased, while the expression of YAP, CTGF and CYR61 increased with severity of disease. Based on Spearman's correlation, RASSF1A showed a negative correlation with YAP, CTGF and CYR61. YAP showed a positive correlation with CTGF and CYR61. To validate this link, RASSF1A was overexpressed in HT1376 cells. Overexpressed RASSF1A activated Hippo pathway, followed by a decrease in CTGF and CYR61 at mRNA, and enhanced cytotoxicity to chemotherapeutic drugs. This study finds a previously unrecognized role of RASSF1A in the regulation of CTGF and CYR61 through mediation of Hippo pathway in UBC and supports the significance of this link as a potential therapeutic target for UBC.
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Affiliation(s)
| | - Vivek Anand
- Department of Biochemistry, AIIMS, New Delhi, India
| | | | - Amlesh Seth
- Department of Urology, AIIMS, New Delhi, India
| | | | | | - Alpana Sharma
- Department of Biochemistry, AIIMS, New Delhi, India.
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Peterson RA, Barry CM, Wiklendt L, Brookes SJH. Characterisation of One Class of Group III Sensory Neurons Innervating Abdominal Muscles of the Mouse. Neuroscience 2019; 421:162-75. [PMID: 31682818 DOI: 10.1016/j.neuroscience.2019.09.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 09/11/2019] [Accepted: 09/12/2019] [Indexed: 11/24/2022]
Abstract
Group III/IV striated muscle afferents are small diameter sensory neurons that play important roles in reflexes and sensation. To date, the morphological features of physiologically characterised group III/IV muscular afferents have not been identified. Here, the electrophysiological and morphological characteristics of sensory neurons innervating striated muscles of the mouse abdominal wall were investigated, ex vivo. Extracellular recordings were made from subcostal nerve trunks innervating the muscles. A distinctive class of mechanosensitive afferents was identified by a combination of physiological features including sensitivity to local compression, saturating response to graded stretch and, in most cases, absence of spontaneous firing. Studies were restricted to these distinctive units. These units had conduction velocities averaging 14 ± 4 m/s (range: 8-20 m/s, n = 7); within the range of group III fibres in mice. Von Frey hairs were used to map receptive fields, which covered an area of 0.36 ± 0.18 mm2 (n = 7). In 7 preparations, biotinamide filling of recorded nerve trunks revealed a single axon in the marked receptive field, with distinctive axonal branching and terminations meandering through the connective tissue sandwiched between two closely associated muscle layers. These axons were not immunoreactive for CGRP (n = 7) and were not activated by application of capsaicin (1 µM, n = 14). All of these afferents were strongly activated by a "metabolite mix" containing lactate, adenosine triphosphate and reduced pH. Responses to mechanical stimuli and to metabolites were additive. We have characterised a distinctive class of mechano- and chemo-sensitive group III afferent endings associated with connective tissue close to muscle fibres.
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174
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Xia F, Ma S, Bian Y, Yu D, Ma W, Miao M, Huang C, Miao L. A retrospective study of the correlation of in vitro chemosensitivity using ATP-TCA with patient clinical outcomes in acute myeloid leukemia. Cancer Chemother Pharmacol 2019; 85:509-515. [PMID: 31654111 DOI: 10.1007/s00280-019-03973-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 10/03/2019] [Indexed: 12/19/2022]
Abstract
PURPOSE To evaluate the predictive value of the in vitro chemosensitivity using ATP-TCA method to compare the clinical efficacy of patients with AML. METHODS Bone marrow or peripheral blood samples were collected from 65 patients with AML, and the in vitro chemosensitivity of four drugs (cytarabine/idarubicin/decitabine/aclacinomycin) was measured by an ATP-tumor chemosensitivity assay. RESULTS Aclacinomycin and cytarabine had the highest chemosensitivity rates (66.7%, 8/12 and 58.5%, 38/65, respectively), while idarubicin and decitabine had rates of 6.5% (3/46) and 0% (0/35), respectively. Complete remission (CR) was achieved in 66.2% (43/65) of patients, and there was a statistically significant correlation between CR and in vitro chemosensitivity for cytarabine (47.7% vs 18.5%, p = 0.002), but not for the anthracyclines (p = 0.950). In addition, three other factors significantly correlated with CR: disease status (p = 0.005), FLT3-ITD/TKD mutation (p = 0.003) and chemotherapy regimens (p = 0.004). Furthermore, multiple logistic regression analysis revealed that the sensitivity of cytarabine was one of the significant risk factors for CR [hazard ratio (HR) = 5.52; 95% confidence interval (CI) = 1.47-20.70; p = 0.011]. CONCLUSIONS The in vitro chemosensitivity as tested by ATP-TCA demonstrated a significant correlation with CR for chemotherapy and can be a useful tool to optimize personalized treatments for patients with AML.
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Affiliation(s)
- Fan Xia
- Department of Clinical Pharmacology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Sheng Ma
- Department of Clinical Pharmacology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yicong Bian
- Department of Clinical Pharmacology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Di Yu
- Department of Clinical Pharmacology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - WenXia Ma
- Department of Quality Management, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Miao Miao
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Chenrong Huang
- Department of Clinical Pharmacology, The First Affiliated Hospital of Soochow University, Suzhou, China. .,Institute for Interdisciplinary Drug Research and Translational Sciences, College of Pharmaceutical Science, Soochow University, Suzhou, China.
| | - Liyan Miao
- Department of Clinical Pharmacology, The First Affiliated Hospital of Soochow University, Suzhou, China. .,Institute for Interdisciplinary Drug Research and Translational Sciences, College of Pharmaceutical Science, Soochow University, Suzhou, China.
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Abstract
In vivo experimental models are still essential for advancing our understanding of cancer and developing novel therapeutic strategies, despite rapid and remarkable developments in cellular and molecular technologies. Multiple patient-derived tumor xenograft (PDX) models, in which primary cancer tissues or cells are transplanted into immunodeficient mice, have been developed. PDX models are widely used in the field of precision cancer medicine. The purpose of this chapter is to introduce the chick embryo xenograft model, which has a longer history than the athymic nude mouse model.
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Affiliation(s)
- Yoshio Endo
- Central Research Resource Branch, Cancer Research Institute, Kanazawa University, Kanazawa, Japan.
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176
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Patrone LGA, Capalbo AC, Marques DA, Bícego KC, Gargaglioni LH. An age- and sex-dependent role of catecholaminergic neurons in the control of breathing and hypoxic chemoreflex during postnatal development. Brain Res 2019; 1726:146508. [PMID: 31606412 DOI: 10.1016/j.brainres.2019.146508] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 09/23/2019] [Accepted: 10/09/2019] [Indexed: 12/27/2022]
Abstract
The respiratory system undergoes significant development during the postnatal phase. Maturation of brainstem catecholaminergic (CA) neurons is important for the control and modulation of respiratory rhythmogenesis, as well as for chemoreception in early life. We demonstrated an inhibitory role for CA neurons in CO2 chemosensitivity in neonatal and juvenile male and female rats, but information regarding their role in the hypoxic ventilatory response (HVR) is lacking. We evaluated the contribution of brainstem CA neurons in the HVR during postnatal (P) development (P7-8, P14-15 and P20-21) in male and female rats through chemical injury with conjugated saporin anti-dopamine beta-hydroxylase (DβH-SAP, 420 ng·μL-1) injected in the fourth ventricle. Ventilation (V̇E) and oxygen consumption were recorded one week after the lesion in unanesthetized rats during exposure to normoxia and hypoxia. Hypoxia reduced breathing variability in P7-8 control rats of both sexes. At P7-8, the HVR for lesioned males and females increased 27% and 24%, respectively. Additionally, the lesion reduced the normoxic breathing variability in both sexes at P7-8, but hypoxia partially reverted this effect. For P14-15, the increase in V̇E during hypoxia was 30% higher for male and 24% higher for female lesioned animals. A sex-specific difference was detected at P20-21, as lesioned males exhibited a 24% decrease in the HVR, while lesioned females experienced a 22% increase. Furthermore, the hypoxia-induced body temperature reduction was attenuated in P20-21 lesioned females. We conclude that brainstem CA neurons modulate the HRV during the postnatal phase, and possibly thermoregulation during hypoxia.
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Affiliation(s)
- Luis Gustavo A Patrone
- Department of Animal Morphology and Physiology, Sao Paulo State University, UNESP/FCAV, Jaboticabal, SP, Brazil
| | - Aretuza C Capalbo
- Department of Animal Morphology and Physiology, Sao Paulo State University, UNESP/FCAV, Jaboticabal, SP, Brazil
| | - Danuzia A Marques
- Department of Animal Morphology and Physiology, Sao Paulo State University, UNESP/FCAV, Jaboticabal, SP, Brazil
| | - Kênia C Bícego
- Department of Animal Morphology and Physiology, Sao Paulo State University, UNESP/FCAV, Jaboticabal, SP, Brazil
| | - Luciane H Gargaglioni
- Department of Animal Morphology and Physiology, Sao Paulo State University, UNESP/FCAV, Jaboticabal, SP, Brazil.
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Zhan M, Wang H, Xu SW, Yang LH, Chen W, Zhao SX, Shen H, Liu Q, Yang RM, Wang J. Variants in oxidative stress-related genes affect the chemosensitivity through Nrf2-mediated signaling pathway in biliary tract cancer. EBioMedicine 2019; 48:143-160. [PMID: 31590928 PMCID: PMC6838379 DOI: 10.1016/j.ebiom.2019.08.037] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/15/2019] [Accepted: 08/18/2019] [Indexed: 02/08/2023] Open
Abstract
Background Oxidative stress and their effectors play critical roles in carcinogenesis and chemoresistance. However, the role of oxidative stress-related genes variants in biliary tract cancer (BTC) chemoresistance remains unknown. In this work, we aim to investigate oxidative stress-dependent molecular mechanisms underlying chemoresistance, and find potential biomarkers to predict chemotherapy response for BTC. Methods Sixty-six SNPs in 21 oxidative stress-related genes were genotyped and analyzed in 367 BTC patients. Immunoblot, immunohistochemical, immunofluorescent, quantitative PCR, chromatin immunoprecipitation analysis and study of animal xenograft models were performed to discover oxidative stress-related susceptibility genes underlying chemoresistance mechanism of BTC. Findings We found that 3 functional polymorphisms (CAT_rs769217, GPX4_rs4807542, and GSR_rs3779647), which were shown to affect their respective gene expression levels, modified the effect of chemotherapy on overall survival (OS). We then demonstrated that knockdown of GPX4, CAT, or GSR induced chemoresistance through elevation of ROS level and activation of Nrf2-ABCG2 pathway in BTC cell lines. Moreover, the association between Nrf2 expression and BTC prognosis is only found in patients who received chemotherapy. Knockdown of Nrf2 enhanced chemosensitivity or even eliminated postoperative recurrence in BTC xenograft mouse models. Importantly, upon chemotherapy treatment patients harboring high oxidative stress-related score received higher survival benefit from adjuvant chemotherapy compared with patients with low oxidative stress-related score. Interpretation The result of our study suggests, for the first time, that the oxidative stress-related score calculated by combining variations in CAT, GPX4, and GSR or Nrf2 expression could be used for predicting the chemosensitivity of BTC patients. Fund This work was supported by the National Science Foundation of China, Foundation of Shanghai Shen Kang Hospital Development Center, and Shanghai Outstanding Academic Leaders Plan.
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Affiliation(s)
- Ming Zhan
- Department of Biliary-Pancreatic Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Hui Wang
- Department of Biliary-Pancreatic Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Sun-Wang Xu
- Department of Biliary-Pancreatic Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Lin-Hua Yang
- Department of Biliary-Pancreatic Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Wei Chen
- Department of Biliary-Pancreatic Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Shuang-Xia Zhao
- The Core Laboratory in Medical Center of Clinical Research, Department of Endocrinology, Shanghai Ninth People's Hospital, State Key Laboratory of Medical Genomics, Shanghai Jiao Tong University (SJTU) School of Medicine, Shanghai 200011, China
| | - Hui Shen
- Department of Biliary-Pancreatic Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Qiang Liu
- Department of Pathology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Rui-Meng Yang
- The Core Laboratory in Medical Center of Clinical Research, Department of Endocrinology, Shanghai Ninth People's Hospital, State Key Laboratory of Medical Genomics, Shanghai Jiao Tong University (SJTU) School of Medicine, Shanghai 200011, China.
| | - Jian Wang
- Department of Biliary-Pancreatic Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China.
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Zheng TL, Li DP, He ZF, Zhao S. miR-145 sensitizes esophageal squamous cell carcinoma to cisplatin through directly inhibiting PI3K/AKT signaling pathway. Cancer Cell Int 2019; 19:250. [PMID: 31582906 PMCID: PMC6767650 DOI: 10.1186/s12935-019-0943-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 08/18/2019] [Indexed: 12/20/2022] Open
Abstract
Background Esophageal squamous cell carcinoma (ESCC) is the eighth most common cancer worldwide and is one of the most lethal malignancies. Cisplatin (DDP) is a key drug for ESCC treatment, but the presence of chemotherapy resistance limits the use of DDP. To enhance chemosensitivity to DDP is important for ESCC treatment. Methods qRT-PCR and Western blotting detected mRNA and protein expression in ESCC tissues and cells. Luciferase reporter assay assessed the interaction between miR-145 and AKT3. Cell cycle, apoptosis and proliferation were investigated with flow cytometry and MTT assay, respectively. Nude mice xenograft model was established, and immunohistochemistry (IHC) and TUNEL assay were conducted to detect Ki-67 level and apoptosis in xenograft tumor. Results Down-regulated miR-145 and up-regulated AKT3 were observed in ESCC tissues and cells. Luciferase reporter assay revealed that miR-145 negatively regulated AKT3 through binding to its 3′-UTR. Overexpression of miR-145 or knockdown of AKT3 promoted DDP-induced cell cycle arrest and apoptosis, as well as reduced IC50 of DDP treatment, which was reversed by AKT3 overexpression. The expression level of MRP1, P-gp, CyclinD1, c-Myc and anti-apoptotic protein Bcl-2 were down-regulated, while pro-apoptotic protein Bax was up-regulated by miR-145. Furthermore, overexpression of miR-145 enhanced the DDP-induced tumor growth suppression in vivo. Conclusion miR-145 increased the sensitivity of ESCC to DDP, and facilitated DDP-induced apoptosis, cycle arrest by directly inhibiting PI3K/AKT signaling pathway to decrease multidrug resistance-associated proteins MRP1 and P-gp expression. Improving the efficacy of DDP by boosting the miR-145 level provides a new strategy for treatment of ESCC.
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Affiliation(s)
- Tian-Liang Zheng
- 1Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1, East Jianshe Road, Erqi District, Zhengzhou, 450000 Henan Province People's Republic of China
| | - De-Ping Li
- Department of Acupuncture and Moxibustion, Zhengzhou Hospital of Traditional Chinese Medicine, Zhengzhou, 450000 People's Republic of China
| | - Zhan-Feng He
- 1Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1, East Jianshe Road, Erqi District, Zhengzhou, 450000 Henan Province People's Republic of China
| | - Song Zhao
- 1Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1, East Jianshe Road, Erqi District, Zhengzhou, 450000 Henan Province People's Republic of China
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179
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Yan J, Dou X, Zhou J, Xiong Y, Mo L, Li L, Lei Y. Tubeimoside-I sensitizes colorectal cancer cells to chemotherapy by inducing ROS-mediated impaired autophagolysosomes accumulation. J Exp Clin Cancer Res 2019; 38:353. [PMID: 31412953 PMCID: PMC6694658 DOI: 10.1186/s13046-019-1355-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 08/01/2019] [Indexed: 12/24/2022]
Abstract
Background Tubeimoside-I (TBM), a plant-derived bioactive compound, shows antitumor activity in different tumors and can enhance the efficacy of chemotherapeutic agents. However, the detail mechanism underlying remains to be elucidated. Methods The cytotoxic potential of TBM towards CRC cells was examined by CCK8 assay, colony formation, LDH release assay, flow cytometry method and Western blots. The ROS levels, autophagy, apoptosis, chemosensitivity to 5-FU or DOX, etc. were determined between control and TBM-treated CRC cells. Results In this study, we found that TBM could inhibit proliferation and induce apoptosis in colorectal cancer (CRC) cells. Intriguingly, TBM treatment could either promote autophagy initiation by ROS-induced AMPK activation, or block autophagy flux through inhibiting lysosomal hydrolytic enzymes, which leaded to massive impaired autophagylysosomes accumulation. Administration of autophagy initiation inhibitor (3-MA or selective ablation of autophagy related proteins) relieves TBM-induced CRC suppression, while combination use of autophagy flux inhibitor chloroquine (CQ) slightly augments TBM-induced cell death, suggesting that impaired autophagylysosomes accumulation contributes to TBM-induced growth inhibition in CRC cells. Notably, as an autophagy flux inhibitor, TBM works synergistically with 5-fluorouracil (5-FU) or doxorubicin (DOX) in CRC suppression. Conclusion Together, our study provides new insights regarding the anti-tumor activity of TBM against CRC, and established potential applications of TBM for CRC combination therapies in clinic. Electronic supplementary material The online version of this article (10.1186/s13046-019-1355-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jianghong Yan
- Institute of Life Science,Chongqing Medical University, Chongqing, 400016, China.,Department of Medical Laboratory Technology, Chongqing Medical University, Chongqing, 400016, China
| | - Xiaoyun Dou
- Institute of Life Science,Chongqing Medical University, Chongqing, 400016, China
| | - Jing Zhou
- Department of Biochemistry and Molecular Biology and Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Yuanfeng Xiong
- Department of Medical Laboratory Technology, Chongqing Medical University, Chongqing, 400016, China
| | - Ling Mo
- Department of Medical Laboratory Technology, Chongqing Medical University, Chongqing, 400016, China
| | - Longhao Li
- Department of Oncology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
| | - Yunlong Lei
- Department of Biochemistry and Molecular Biology and Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, 400016, People's Republic of China.
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Iravani Saadi M, Arandi N, Yaghobi R, Azarpira N, Geramizadeh B, Ramzi M. Aberrant Expression of the miR-181b/miR-222 after Hematopoietic Stem Cell Transplantation in Patients with Acute Myeloid Leukemia. Indian J Hematol Blood Transfus 2019; 35:446-50. [PMID: 31388255 DOI: 10.1007/s12288-018-01066-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 12/17/2018] [Indexed: 01/01/2023] Open
Abstract
Recently, dysregulated expression of various micro RNAs has been reported in hematologic malignancies, especially AML disease which affects normal hematopoiesis in these patients and thereby contribute to clinical outcome of AML patients, associated with either poor or favorable prognosis. Herein, we evaluated the expression of miR-181b and miR-222 in acute myeloid leukemia patients and correlation with response to therapy after hematopoietic stem cell transplantation. Eighty newly diagnosed AML patients and 80 healthy controls were recruited. The expression of miR-181b and miR-222 was evaluated by real-time SYBR Green PCR method. miR-181b gene expression was significantly increased (4.7 fold) whereas miR-222 was decreased (18.3 fold) in AML patients compared to controls (P = 0.03 and P < 0.001, respectively). Both miR-181b and miR-222 were not associated with response to treatment (P > 0.05). Also, miR-181b and miR-222 were not differentially expressed in AML patients with M3 compared to non-M3 FAB subtypes (P > 0.05). miR-181b and miR-222 are aberrantly expressed in AML patients and their baseline level is not associated with response to treatment.
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Friedman JR, Richbart SD, Merritt JC, Perry HE, Brown KC, Akers AT, Nolan NA, Stevenson CD, Hurley JD, Miles SL, Tirona MT, Valentovic MA, Dasgupta P. Capsaicinoids enhance chemosensitivity to chemotherapeutic drugs. Adv Cancer Res 2019; 144:263-298. [PMID: 31349900 DOI: 10.1016/bs.acr.2019.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Cytotoxic chemotherapy is the mainstay of cancer treatment. Conventional chemotherapeutic agents do not distinguish between normal and neoplastic cells. This leads to severe toxic side effects, which may necessitate the discontinuation of treatment in some patients. Recent research has identified key molecular events in the initiation and progression of cancer, promoting the design of targeted therapies to selectively kill tumor cells while sparing normal cells. Although, the side effects of such drugs are typically milder than conventional chemotherapies, some off-target effects still occur. Another serious challenge with all chemotherapies is the acquisition of chemoresistance upon prolonged exposure to the drug. Therefore, identifying supplementary agents that sensitize tumor cells to chemotherapy-induced apoptosis and help minimize drug resistance would be valuable for improving patient tolerance and response to chemotherapy. The use of effective supplementary agents provides a twofold advantage in combination with standard chemotherapy. First, by augmenting the activity of the chemotherapeutic drug it can lower the dose needed to kill tumor cells and decrease the incidence and severity of treatment-limiting side effects. Second, adjuvant therapies that lower the effective dose of chemotherapy may delay/prevent the development of chemoresistance in tumors. Capsaicinoids, a major class of phytochemical compounds isolated from chili peppers, have been shown to improve the efficacy of several anti-cancer drugs in cell culture and animal models. The present chapter summarizes the current knowledge about the chemosensitizing activity of capsaicinoids with conventional and targeted chemotherapeutic drugs, highlighting the potential use of capsaicinoids in novel combination therapies to improve the therapeutic indices of conventional and targeted chemotherapeutic drugs in human cancers.
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Affiliation(s)
- Jamie R Friedman
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Stephen D Richbart
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Justin C Merritt
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Haley E Perry
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Kathleen C Brown
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Austin T Akers
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Nicholas A Nolan
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Cathryn D Stevenson
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - John D Hurley
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Sarah L Miles
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Maria T Tirona
- Department of Hematology, Oncology, Edwards Comprehensive Cancer Center, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Monica A Valentovic
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States
| | - Piyali Dasgupta
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV, United States.
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Xu LN, Jin LN. Effect of down-regulation of miR-221 on cell proliferation and cisplatin sensitivity in cisplatin-resistant gastric cancer cells and underlying mechanism. Shijie Huaren Xiaohua Zazhi 2019; 27:857-863. [DOI: 10.11569/wcjd.v27.i14.857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Patients with advanced gastric cancer (GC) usually undergo chemotherapy as the primary treatment. However, the effectiveness of chemotherapy is often limited by the development of drug resistance in GC cells. This study aimed to investigate the expression pattern, biological role, and potential mechanism of microRNA-221 (miR-221) in cisplatin (DDP)-resistant GC cells, in order to provide a reference for clinical treatment of this malignancy.
AIM To investigate the effect of down-regulation of miR-221 on cell proliferation and DDP sensitivity in DDP-resistant GC cells and to explore the underlying mechanism.
METHODS AGS and MGC-803 cells were screened for DDP-resistant cells (AGS/DDP and MGC-803/DDP). The expression levels of miR-221 in GC tissues, matched tumor adjacent tissues, DDP-sensitive tissues, DDP-resistant tissues, GC cells, and DDP-resistant GC cells were detected by RT-PCR. After AGS/DDP and MGC-803/DDP cells were transfected with LV-miR-221-shRNA, cell proliferation and DDP sensitivity in those cells were measured by MTT assay, cell apoptosis was detected by Annexin V-FITC/PI staining, and the mRNA and protein expression of CCND1 was detected by RT-qPCR and Western blot, respectively. The potential target genes of miR-221 were predicted by bioinformatics analysis.
RESULTS The expression of miR-221 was up-regulated in GC tissues and gastric cells, especially in DDP-resistant tissues and DDP-resistant GC cells. Down-regulation of miR-221 inhibited the proliferation of AGS/DDP and MGC-803/DDP cells, but increased their apoptosis and chemosensitivity to DDP. CCND1 was found to be a direct target gene of miR-221. Transfection with LV-miR-221-shRNA inhibited the mRNA and protein expression of CCND1.
CONCLUSION Down-regulation of miR-221 can inhibit cell proliferation and promote chemosensitivity to DDP in DDP-resistant GC cells, which may be achieved by inhibiting the expression of its target gene CCND1.
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Affiliation(s)
- Li-Na Xu
- Department of Pharmacy, Taizhou Hospital, Taizhou Grace Medical Center (Group), Taizhou 317000, Zhejiang Province, China
| | - Li-Na Jin
- Department of Pharmacy, Taizhou Hospital, Taizhou Grace Medical Center (Group), Taizhou 317000, Zhejiang Province, China
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Reed MD, Iceman KE, Harris MB, Taylor BE. Buccal rhythmogenesis and CO 2 sensitivity in Lithobates catesbeianus tadpole brainstems across metamorphosis. Respir Physiol Neurobiol 2019; 268:103251. [PMID: 31279052 DOI: 10.1016/j.resp.2019.103251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 06/19/2019] [Accepted: 07/02/2019] [Indexed: 11/19/2022]
Abstract
Bullfrog tadpoles ventilate both the buccal cavity and lung. In isolated brainstems, the midbrain/pons influences CO2 responsiveness and timing of lung ventilatory bursting, depending on larval development. However, little is known about midbrain/pons influences on buccal burst patterns. As such, we investigated how removal of this region affects buccal burst shape and CO2 responsiveness across development. We measured facial nerve activity in brainstems isolated from tadpoles during early and late developmental stages, under normal and elevated levels of CO2. Brainstems were either left intact or transected by removing the midbrain/pons. In late stage preparations, buccal burst pattern differed between intact and reduced preparations, and bursts were responsive to elevated CO2 in these reduced preparations. These results suggest the midbrain/pons affects tadpole buccal burst pattern and CO2 responsiveness, perhaps similar to its influences on lung ventilation.
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Affiliation(s)
- Mitchell D Reed
- Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, AK, 99775, United States.
| | - Kimberly E Iceman
- Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, AK, 99775, United States; Department of Biology, Valparaiso University, Valparaiso, IN, 46383, United States
| | - Michael B Harris
- Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, AK, 99775, United States; Department of Biology, California State University Long Beach, Long Beach, CA, 90840, United States
| | - Barbara E Taylor
- Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, AK, 99775, United States; Department of Biology, California State University Long Beach, Long Beach, CA, 90840, United States
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Cheng KC, Lin RJ, Cheng JY, Wang SH, Yu JC, Wu JC, Liang YJ, Hsu HM, Yu J, Yu AL. FAM129B, an antioxidative protein, reduces chemosensitivity by competing with Nrf2 for Keap1 binding. EBioMedicine 2019; 45:25-38. [PMID: 31262713 PMCID: PMC6642435 DOI: 10.1016/j.ebiom.2019.06.022] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 06/13/2019] [Accepted: 06/13/2019] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND The transcription factor Nrf2 is a master regulator of antioxidant response. While Nrf2 activation may counter increasing oxidative stress in aging, its activation in cancer can promote cancer progression and metastasis, and confer resistance to chemotherapy and radiotherapy. Thus, Nrf2 has been considered as a key pharmacological target. Unfortunately, there are no specific Nrf2 inhibitors for therapeutic application. Moreover, high Nrf2 activity in many tumors without Keap1 or Nrf2 mutations suggests that alternative mechanisms of Nrf2 regulation exist. METHODS Interaction of FAM129B with Keap1 is demonstrated by immunofluorescence, colocalization, co-immunoprecipitation and mammalian two-hybrid assay. Antioxidative function of FAM129B is analyzed by measuring ROS levels with DCF/flow cytometry, Nrf2 activation using luciferase reporter assay and determination of downstream gene expression by qPCR and wester blotting. Impact of FAM129B on in vivo chemosensitivity is examined in mice bearing breast and colon cancer xenografts. The clinical relevance of FAM129B is assessed by qPCR in breast cancer samples and data mining of publicly available databases. FINDINGS We have demonstrated that FAM129B in cancer promotes Nrf2 activity by reducing its ubiquitination through competition with Nrf2 for Keap1 binding via its DLG and ETGE motifs. In addition, FAM129B reduces chemosensitivity by augmenting Nrf2 antioxidative signaling and confers poor prognosis in breast and lung cancer. INTERPRETATION These findings demonstrate the important role of FAM129B in Nrf2 activation and antioxidative response, and identify FMA129B as a potential therapeutic target. FUND: The Chang Gung Medical Foundation (Taiwan) and the Ministry of Science and Technology (Taiwan).
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Affiliation(s)
- Kai-Chun Cheng
- Institute of Stem Cell & Translational Cancer Research, Chang Gung Memorial Hospital at Linkou, Chang Gung University, Taoyuan, Taiwan; Institute of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei, Taiwan
| | - Ruey-Jen Lin
- Institute of Stem Cell & Translational Cancer Research, Chang Gung Memorial Hospital at Linkou, Chang Gung University, Taoyuan, Taiwan
| | - Jing-Yan Cheng
- Institute of Stem Cell & Translational Cancer Research, Chang Gung Memorial Hospital at Linkou, Chang Gung University, Taoyuan, Taiwan
| | - Sheng-Hung Wang
- Institute of Stem Cell & Translational Cancer Research, Chang Gung Memorial Hospital at Linkou, Chang Gung University, Taoyuan, Taiwan
| | - Jyh-Cherng Yu
- General Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Jen-Chine Wu
- Institute of Stem Cell & Translational Cancer Research, Chang Gung Memorial Hospital at Linkou, Chang Gung University, Taoyuan, Taiwan
| | - Yuh-Jin Liang
- Translational Research Division, Medical Research Department, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Huan-Ming Hsu
- General Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - John Yu
- Institute of Stem Cell & Translational Cancer Research, Chang Gung Memorial Hospital at Linkou, Chang Gung University, Taoyuan, Taiwan
| | - Alice L Yu
- Institute of Stem Cell & Translational Cancer Research, Chang Gung Memorial Hospital at Linkou, Chang Gung University, Taoyuan, Taiwan; Department of Pediatrics, University of California in San Diego, San Diego, CA, USA.
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185
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Liu M, Gong C, Xu R, Chen Y, Wang X. MicroRNA-5195-3p enhances the chemosensitivity of triple-negative breast cancer to paclitaxel by downregulating EIF4A2. Cell Mol Biol Lett 2019; 24:47. [PMID: 31308851 PMCID: PMC6604428 DOI: 10.1186/s11658-019-0168-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 06/04/2019] [Indexed: 02/05/2023] Open
Abstract
Background Chemotherapy based on paclitaxel (PTX) is the standard treatment for a range of cancers, including triple-negative breast cancer (TNBC), but the increasing development of resistance has reduced/has negatively impacted its clinical utility. A previous study demonstrated that miR-5195-3p could suppress lung cancer cell growth. This study was designed to investigate whether miR-5195-3p attenuates chemoresistance to PTX by regulating target genes in TNBC cells. Methods The study used both PTX-resistant tumor tissues and PTX-resistant TNBC cell lines. The expression of miR-5195-3p was determined using quantitative real-time PCR. Cell viability, cell cycle distribution and apoptosis were analyzed using CCK-8 and flow cytometry assays. The target genes of miR-5195-3p were predicted with bioinformatics analysis and confirmed using the luciferase reporter assay. Results MiR-5195-3p expression was lower in PTX-resistant tumor tissues and PTX-resistant TNBC cell lines. Upregulation of miR-5195-3p enhanced the sensitivity of PTX-resistant TNBC cells to PTX treatment. EIF4A2 was confirmed as a potential target of miR-5195-3p. EIF4A2 knockdown imitated the effects of miR-5195-3p on chemosensitivity, while restoration of EIF4A2 rescued them. Conclusion These data demonstrate that miR-5195-3p might be a potential therapeutic target to reverse chemoresistance in TNBC through its targeting of EIF4A2.
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Affiliation(s)
- Mei Liu
- Department of Breast Surgery, West China Hospital of Sichuan University, 37 Guoxue Lane, Wuhou District, Chengdu, 610041 Sichuan Province China
| | - Can Gong
- Department of Breast Surgery, West China Hospital of Sichuan University, 37 Guoxue Lane, Wuhou District, Chengdu, 610041 Sichuan Province China
| | - Renyuan Xu
- Department of Breast Surgery, West China Hospital of Sichuan University, 37 Guoxue Lane, Wuhou District, Chengdu, 610041 Sichuan Province China
| | - Yu Chen
- Department of Breast Surgery, West China Hospital of Sichuan University, 37 Guoxue Lane, Wuhou District, Chengdu, 610041 Sichuan Province China
| | - Xiaodong Wang
- Department of Breast Surgery, West China Hospital of Sichuan University, 37 Guoxue Lane, Wuhou District, Chengdu, 610041 Sichuan Province China
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Hu Z, Zhen L, Li Q, Han Q, Hua Q. Ribavirin sensitizes nasopharyngeal carcinoma to 5-fluorouracil through suppressing 5-fluorouracil-induced ERK-dependent-eIF4E activation. Biochem Biophys Res Commun 2019; 513:862-868. [PMID: 31000196 DOI: 10.1016/j.bbrc.2019.04.053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Accepted: 04/07/2019] [Indexed: 11/29/2022]
Abstract
Although overexpression of eukaryotic translation initiation factor 4E (eIF4E) is associated with enhanced growth and poor prognosis in nasopharyngeal carcinoma (NPC), the function of eIF4E in NPC response to chemotherapy has not been revealed. In this work, we demonstrate that eIF4E inhibition using both ribavirin and siRNA targets NPC cells and enhances the efficacy of 5-fluorouracil (5-FU). Mechanism studies indicate that 5-FU treatment increases phosphorylation of eIF4E in NPC cells, and this is dependent on ERK activation. eIF4E inhibition thus significantly sensitizes NPC cell response to 5-FU. Of note, ribavirin is a clinically available anti-viral drug. We show that ribavirin exhibits preferential toxicity to NPC with normal nasopharyngeal epithelial cells largely unaffected. Ribavirin acts on NPC cells via inhibiting eIF4E/Akt signaling, and the suppression of eIF4E by ribavirin are not the consequence of inhibition of eIF4E upstream signaling: Mnk and mTOR. In two independent NPC xenograft mouse models, ribavirin at well-tolerated dose that significantly inhibited NPC growth as single drug alone and its combination with 5-FU completely arrests tumor growth throughout the whole duration of treatment, without causing toxicity in mice. Our findings provide the better understanding on the role of eIF4E in NPC in response to 5-FU and preclinical rationale to explore ribavirin as a sensitizing strategy to treat NPC, particularly in those who develop 5-FU resistance.
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Affiliation(s)
- Zhihua Hu
- Department of Otolaryngology, Xianning Central Hospital, The First Affiliated Hospital of Hubei University of Science and Technology, Xianning, Hubei, China
| | - Lanfang Zhen
- Department of Rheumatology, Rheumatism Hospital of MaTang Xianning, Xianning, Hubei, China
| | - Qin Li
- Department of Otolaryngology, The Second Clinical Medical College, Yangtze University, Jingzhou, Hubei, China
| | - Qi Han
- Department of Oncology, Xianning Central Hospital, The First Affiliated Hospital of Hubei University of Science and Technology, Xianning, Hubei, China
| | - Qinquan Hua
- Department of Otolaryngology Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.
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Wu Y, Yang Y, Xian YS. HCRP1 inhibits cell proliferation and invasion and promotes chemosensitivity in esophageal squamous cell carcinoma. Chem Biol Interact 2019; 308:357-363. [PMID: 31152734 DOI: 10.1016/j.cbi.2019.05.032] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 04/27/2019] [Accepted: 05/20/2019] [Indexed: 12/17/2022]
Abstract
Hepatocellular carcinoma related protein 1 (HCRP1), which is essential for internalization and degradation of ubiquitinated membrane receptors, was reported to play crucial roles in cancer pathogenesis and progression. However, the functional roles of HCRP1 in esophageal squamous cell carcinoma (ESCC) remain unknown. In this study, we investigated the effects of HCRP1 on ESCC cells and the underlying mechanism. Our results demonstrated that HCRP1 was lowly expressed in ESCC tissues and cell lines. Overexpression of HCRP1 significantly suppressed ESCC cell proliferation and invasion as well as the epithelial-mesenchymal transition (EMT) process. Furthermore, HCRP1 increased the sensitivity of ESCC cells towards cisplatin/fluorouracil. Mechanistically, HCRP1 inhibited the activity of Wnt/β-catenin signaling pathway in ESCC cells. In conclusion, these findings indicated that HCRP1 suppressed ESCC cell proliferation and invasion through regulation of the Wnt/β-catenin pathway. Therefore, HCRP1 may function as a tumor suppressor in ESCC progression.
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Affiliation(s)
- Yu Wu
- Department of Thoracic Surgery, Shaanxi People's Hospital, Xi'an, 710068, China
| | - Ye Yang
- Department of Thoracic Surgery, Shaanxi People's Hospital, Xi'an, 710068, China
| | - Yin-Sheng Xian
- Department of Oncosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, China.
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Li Y, Hong J, Jung BK, Oh E, Yun CO. Oncolytic Ad co-expressing decorin and Wnt decoy receptor overcomes chemoresistance of desmoplastic tumor through degradation of ECM and inhibition of EMT. Cancer Lett 2019; 459:15-29. [PMID: 31150821 DOI: 10.1016/j.canlet.2019.05.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Revised: 05/24/2019] [Accepted: 05/24/2019] [Indexed: 02/07/2023]
Abstract
Pancreatic cancer is a highly lethal disease. Excessive accumulation of tumor extracellular matrix (ECM) and epithelial-to-mesenchymal transition (EMT) phenotype are two main contributors to drug resistance in desmoplastic pancreatic tumors. To overcome desmoplasia and chemoresistance of pancreatic cancer, we utilized an oncolytic adenovirus (Ad) co-expressing decorin and soluble Wnt decoy receptor (HEmT-DCN/sLRP6). An orthotopic pancreatic xenograft tumor model was established in athymic nude mice using Mia PaCa-2 cells, and the antimetastatic and antitumor efficacy of systemically administered HEmT-DCN/sLRP6 was evaluated. Immunohistochemical analysis of tumor tissues was performed to assess ECM degradation, induction of apoptosis, viral dispersion, and inhibition of the Wnt/β-catenin signaling pathway. HEmT-DCN/sLRP6 effectively degraded tumor ECM and inhibited EMT, leading to enhanced viral distribution, induction of apoptosis, and attenuation of tumor cell proliferation in tumor tissue. HEmT-DCN/sLRP6 prevented metastasis of pancreatic cancer. Importantly, HEmT-DCN/sLRP6 sensitized pancreatic tumor to gemcitabine treatment. Furthermore, HEmT-DCN/sLRP6 augmented drug penetration and dispersion within pancreatic tumor xenografts and patient-derived tumor spheroids. Collectively, these results illustrate that HEmT-DCN/sLRP6 can enhance the dispersion of both oncolytic Ad and a chemotherapeutic agent in chemoresistant and desmoplastic pancreatic tumor, effectively overcoming the preexisting limitations of standard treatments.
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189
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Sun W, Huang JQ, Chen L, Wen WP. Peripheral Inflammation Markers of Chemosensitivity to Induction Chemotherapy in Hypopharyngeal Cancer Patients. ORL J Otorhinolaryngol Relat Spec 2019; 81:82-91. [PMID: 31112985 DOI: 10.1159/000499474] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 03/08/2019] [Indexed: 11/19/2022]
Abstract
BACKGROUND Induction chemotherapy (ICT) has become an initial treatment for late-stage hypopharyngeal squamous cell carcinoma (SCC); however, there are no data regarding ICT sensitivity for this population. OBJECTIVE This study investigated the predictive value of various inflammation markers for ICT responses in hypopharyngeal SCC. METHODS The data from 72 patients who received initial ICT treatment were obtained and associations between pretreatment inflammation markers and overall responses to ICT were calculated. RESULTS According to receiver operating characteristic curves, pretreatment lymphocyte count (PLC), neutrophil-to-lymphocyte ratio (NLR), and platelet-to-lymphocyte ratio (PLR) achieved diagnostic accuracy for overall responses to ICT. These indicators were classified into two groups according to their cut-off values. Overall response rates were significantly higher in the low PLC (p < 0.01), high NLR (p = 0.035), and high PLR (p = 0.012) groups. CONCLUSION Our results showed that low PLC, high NLR, and high PLR are predictors of positive responses to ICT in hypopharyngeal SCC patients.
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Affiliation(s)
- Wei Sun
- Department of Otorhinolaryngology Head and Neck Surgery and Guangzhou Key Laboratory of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jin-Qiang Huang
- Department of Otorhinolaryngology Head and Neck Surgery and Guangzhou Key Laboratory of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Lin Chen
- Department of Otorhinolaryngology Head and Neck Surgery and Guangzhou Key Laboratory of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wei-Ping Wen
- Department of Otorhinolaryngology Head and Neck Surgery and Guangzhou Key Laboratory of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China,
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Ding J, Zhang L, Zeng S, Feng T. Clinically relevant concentration of sevoflurane suppresses cervical cancer growth and migration through targeting multiple oncogenic pathways. Biochem Biophys Res Commun 2019; 514:1179-84. [PMID: 31103261 DOI: 10.1016/j.bbrc.2019.05.082] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 05/11/2019] [Indexed: 02/07/2023]
Abstract
The biological effects of sevoflurane, a volatile anesthetics, on cancer cells seem to be contradictory and are not fully understood. While some studies demonstrate that sevoflurane promotes tumor growth, other studies report that sevoflurane displays anti-cancer activities. In this work, we systematically investigated the effects of sevoflurane at clinically relevant dose on the multiple biological aspects of cervical cancer cells and analyzed the underlying mechanism. Using a panel of cell lines, we found that sevoflurane significantly inhibited proliferation and migration of cervical cancer cells regardless of cellular origin and genetic background. In contrast, sevoflurane did not affect cervical cancer survival. Additionally, sevoflurane significantly enhanced chemosensitivity of cervical cancer cells. Mechanistically, we show that sevoflurane inhibits Ras and RhoA GTPase activities, leading to the blockade of their downstream signaling pathways, such as Ras/Erk/Akt and Rho/MYPT1/MLC. The rescue studies using Rho activator calpeptin or constitutively active Ras further confirm that Ras and RhoA are the targets of sevoflurane in cervical cancer. Interestingly, we found that the anti-proliferative effect of sevoflurane was via targeting Ras whereas the anti-migratory effect of sevoflurane was mediated via targeting RhoA. Our data clearly demonstrates the anti-cancer effects of sevoflurane. These findings provide preclinical evidence into the potential mechanisms by which sevoflurane may negatively affect cervical cancer growth and metastasis.
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191
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Kessler SM, Hosseini K, Hussein UK, Kim KM, List M, Schultheiß CS, Schulz MH, Laggai S, Jang KY, Kiemer AK. Hepatocellular Carcinoma and Nuclear Paraspeckles: Induction in Chemoresistance and Prediction for Poor Survival. Cell Physiol Biochem 2019; 52:787-801. [PMID: 30946555 DOI: 10.33594/000000055] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 04/02/2019] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND/AIMS Hepatocellular carcinoma (HCC) represents the second most common cause of cancer-related deaths worldwide, not least due to its high chemoresistance. The long non-coding RNA nuclear paraspeckle assembly transcript 1 (NEAT1), localised in nuclear paraspeckles, has been shown to enhance chemoresistance in several cancer types. Since data on NEAT1 in HCC chemosensitivity are completely lacking and chemoresistance is linked to poor prognosis, we aimed to study NEAT1 expression in HCC chemoresistance and its link to HCC prognosis. METHODS NEAT1 expression was determined in either sensitive, or sorafenib, or doxorubicin resistant HepG2, PLC/PRF/5, and Huh7 cells by qPCR. Paraspeckles were detected by immunostaining of paraspeckle component 1 (PSPC1) in cell culture and in a cohort of HCC patients. PSPC1 expression was correlated with clinical data. The expression of transcript variants of NEAT1 and transcripts encoding the paraspeckle-associated proteins was analysed in the TCGA liver cancer data set. RESULTS NEAT1 was overexpressed in all three sorafenib and doxorubicin resistant cell lines. Paraspeckles were present in all chemoresistant cells, whereas no signal was detected in the sensitive cells. Expression of NEAT1 transcripts as well as transcripts encoding PSPC1, NONO, and RBM14 was increased in tumour tissue. Expression of PSPC1, NONO, and RBM14 transcripts was significantly associated with poor survival, whereas NEAT1 expression was not. Immunohistochemical analysis revealed that nuclear and cytoplasmic PSPC1-positivity was significantly associated with shorter overall survival of HCC patients. CONCLUSION Our data show an induction of NEAT1 in HCC chemoresistance and a high correlation of transcripts encoding paraspeckle-associated proteins with poor survival in HCC. Therefore, NEAT1, PSPC1, NONO, and RBM14 might be promising targets for novel HCC therapies, and the paraspeckle-associated proteins might be clinical markers and predictors for poor survival in HCC.
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Affiliation(s)
- Sonja M Kessler
- Department of Pharmacy, Pharmaceutical Biology, Saarland University, Saarbrücken, Germany
| | - Kevan Hosseini
- Department of Pharmacy, Pharmaceutical Biology, Saarland University, Saarbrücken, Germany
| | - Usama Khamis Hussein
- Department of Pathology, Chonbuk National University Medical School, Jeonju, Republic of Korea.,Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital and Research Institute for Endocrine Sciences, Jeonju, Republic of Korea.,Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Kyoung Min Kim
- Department of Pathology, Chonbuk National University Medical School, Jeonju, Republic of Korea.,Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital and Research Institute for Endocrine Sciences, Jeonju, Republic of Korea
| | - Markus List
- Department for Computational Biology and Applied Algorithmics, Max Planck Institute for Informatics, Saarland Informatics Campus, Saarland University, Saarbrücken, Germany.,Big Data in BioMedicine Group, Chair of Experimental Bioinformatics, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany
| | - Christina S Schultheiß
- Department of Pharmacy, Pharmaceutical Biology, Saarland University, Saarbrücken, Germany
| | - Marcel H Schulz
- Department for Computational Biology and Applied Algorithmics, Max Planck Institute for Informatics, Saarland Informatics Campus, Saarland University, Saarbrücken, Germany.,Cluster of Excellence in Multimodal Computing and Interaction, Saarland Informatics Campus, Saarland University, Saarbrücken, Germany.,Institute for Cardiovascular Regeneration, Goethe-University Hospital, Frankfurt, Germany.,German Centre for Cardiovascular Research (DZHK), Partner site RheinMain, Frankfurt, Germany
| | - Stephan Laggai
- Department of Pharmacy, Pharmaceutical Biology, Saarland University, Saarbrücken, Germany
| | - Kyu Yun Jang
- Department of Pathology, Chonbuk National University Medical School, Jeonju, Republic of Korea.,Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital and Research Institute for Endocrine Sciences, Jeonju, Republic of Korea,
| | - Alexandra K Kiemer
- Department of Pharmacy, Pharmaceutical Biology, Saarland University, Saarbrücken, Germany,
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192
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Khan S, Setua S, Kumari S, Dan N, Massey A, Hafeez BB, Yallapu MM, Stiles ZE, Alabkaa A, Yue J, Ganju A, Behrman S, Jaggi M, Chauhan SC. Superparamagnetic iron oxide nanoparticles of curcumin enhance gemcitabine therapeutic response in pancreatic cancer. Biomaterials 2019; 208:83-97. [PMID: 30999154 DOI: 10.1016/j.biomaterials.2019.04.005] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 03/08/2019] [Accepted: 04/05/2019] [Indexed: 01/14/2023]
Abstract
Pancreatic cancer is a complex disease accounting for fibrotic tumors and an aggressive phenotype. Gemcitabine (GEM) is used as a standard therapy, which develops chemoresistance leading to poor patient outcome. We have recently developed a superparamagnetic iron oxide nanoparticle (SPION) formulation of curcumin (SP-CUR), which is a nontoxic, bioactive anti-inflammatory/anti-cancer agent for its enhanced delivery in tumors. In this study, we demonstrate that SP-CUR effectively delivers bioactive curcumin to pancreatic tumors, simultaneously enhances GEM uptake and its efficacy. Mechanistic revelations suggest that SP-CUR targets tumor microenvironment via suppression of sonic hedgehog (SHH) pathway and an oncogenic CXCR4/CXCL12 signaling axis that inhibits bidirectional tumor-stromal cells interaction. Increased GEM uptake was observed due to upregulation of the human nucleoside transporter genes (DCK, hCNT) and blocking ribonucleotide reductase subunits (RRM1/RRM2). Additionally, co-treatment of SP-CUR and GEM targets cancer stem cells by regulating pluripotency maintaining stemness factors (Nanog, Sox2, c-Myc and Oct-4), and restricting tumor sphere formation. In an orthotopic mouse model, an enhanced accumulation of SP-CUR was found in pancreas, which potentiated GEM to reduce tumor growth and metastasis. Analysis of tumor tissues suggest that the treatment inhibits tumor stroma (α-SMA, Desmin and Hyluronic Acid) and induces changes in cell stiffness, as measured via Atomic Force Microscopy. This was accompanied by alteration of key cellular proteins of SHH signaling such as SHH, Gli-1, Gli-2, Sufu, and NFĸB-65 as indicated by Immunoblotting and Immunohistochemistry. These results suggest that SP-CUR has a great potential for future clinical use in the management of pancreatic cancer.
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Affiliation(s)
- Sheema Khan
- Department of Pharmaceutical Sciences and Center for Cancer Research, University of Tennessee Health Science Center, Memphis, USA
| | - Saini Setua
- Department of Pharmaceutical Sciences and Center for Cancer Research, University of Tennessee Health Science Center, Memphis, USA
| | - Sonam Kumari
- Department of Pharmaceutical Sciences and Center for Cancer Research, University of Tennessee Health Science Center, Memphis, USA
| | - Nirnoy Dan
- Department of Pharmaceutical Sciences and Center for Cancer Research, University of Tennessee Health Science Center, Memphis, USA
| | - Andrew Massey
- Department of Pharmaceutical Sciences and Center for Cancer Research, University of Tennessee Health Science Center, Memphis, USA
| | - Bilal Bin Hafeez
- Department of Pharmaceutical Sciences and Center for Cancer Research, University of Tennessee Health Science Center, Memphis, USA
| | - Murali M Yallapu
- Department of Pharmaceutical Sciences and Center for Cancer Research, University of Tennessee Health Science Center, Memphis, USA
| | - Zachary Edwar Stiles
- Department of Pharmaceutical Sciences and Center for Cancer Research, University of Tennessee Health Science Center, Memphis, USA
| | - Anas Alabkaa
- Department of Pharmaceutical Sciences and Center for Cancer Research, University of Tennessee Health Science Center, Memphis, USA
| | - Junming Yue
- Department of Pathology, University of Tennessee Health Science Center, Memphis, USA
| | - Aditya Ganju
- Department of Pharmaceutical Sciences and Center for Cancer Research, University of Tennessee Health Science Center, Memphis, USA
| | - Stephen Behrman
- Department of Surgery, University of Tennessee Health Science Center, Memphis, USA
| | - Meena Jaggi
- Department of Pharmaceutical Sciences and Center for Cancer Research, University of Tennessee Health Science Center, Memphis, USA
| | - Subhash C Chauhan
- Department of Pharmaceutical Sciences and Center for Cancer Research, University of Tennessee Health Science Center, Memphis, USA.
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Huckstepp RTR. Your input is a breath of fresh air! A chemosensory microcircuit of medullary raphe and RTN neurons. J Physiol 2019; 597:2609-2610. [PMID: 30938458 DOI: 10.1113/jp277972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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194
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Zhang Y, Tang B, Song J, Yu S, Li Y, Su H, He S. Lnc-PDZD7 contributes to stemness properties and chemosensitivity in hepatocellular carcinoma through EZH2-mediated ATOH8 transcriptional repression. J Exp Clin Cancer Res 2019; 38:92. [PMID: 30786928 PMCID: PMC6381703 DOI: 10.1186/s13046-019-1106-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 02/13/2019] [Indexed: 01/20/2023]
Abstract
Background Hepatocellular carcinoma (HCC) with stemness features are pivotal for tumorigenesis, chemoresistance, and progression. Long non-coding RNAs have been implicated in the regulation of HCC stemness features; however, their mechanisms remain largely unknown. Here, we found that Lnc-PDZD7 is a potential oncogene. We systematically analyzed the clinical significance and mechanism of Lnc-PDZD7 in stemness and chemosensitivity regulation. Methods We analyzed the Lnc-PDZD7 expression levels in liver cancer tissues and cell line by qRT-PCR and In situ hybridization. Gain- and loss-of-function experiments were conducted to investigate the biological functions of Lnc-PDZD7 in stemness and chemosensitivity regulation. Bioinformatics analysis, dual-luciferase reporter assays were performed to validate that Lnc-PDZD7 competitively regulates EZH2, Moreover, chromatin immunoprecipitation assays, bisulfite genomic sequencing and Western blot were performed to evaluate the mechanisms of EZH2 repressing ATOH8. Results Lnc-PDZD7 is frequently upregulated in HCC tissues. Patients with high Lnc-PDZD7 expression had poorer prognoses and a poor response to adjuvant TACE therapy. Lnc-PDZD7 could promote stemness features and suppress the sensitivity of HCC cells to anticancer drugs in vitro and in vivo. Mechanistically, Lnc-PDZD7 functioned as a molecular sponge for miR-101, antagonizing its ability to repress EZH2 expression. Subsequently, EZH2 can further inhibit the expression of the stemness regulator ATOH8 via elevating its H3K27 trimethylation and DNA methylation. Conclusion Lnc-PDZD7 promotes stemness properties and suppresses chemosensitivity though the miR-101/EZH2/ATOH8 pathway, providing new biomarkers for diagnosis and potential drug targets for HCC. Electronic supplementary material The online version of this article (10.1186/s13046-019-1106-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yi Zhang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, No.6 Shuangyong Road, Nanning, Guangxi, 530021, People's Republic of China.,Department of General Surgery, Affiliated hospital of Xuzhou Medical University, Xuzhou, 221000, China
| | - Bo Tang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, No.6 Shuangyong Road, Nanning, Guangxi, 530021, People's Republic of China.
| | - Jun Song
- Department of General Surgery, Affiliated hospital of Xuzhou Medical University, Xuzhou, 221000, China
| | - Shuiping Yu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, No.6 Shuangyong Road, Nanning, Guangxi, 530021, People's Republic of China
| | - Yang Li
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, No.6 Shuangyong Road, Nanning, Guangxi, 530021, People's Republic of China
| | - Huizhao Su
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, No.6 Shuangyong Road, Nanning, Guangxi, 530021, People's Republic of China
| | - Songqing He
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, No.6 Shuangyong Road, Nanning, Guangxi, 530021, People's Republic of China.
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Feng LL, Shen FR, Zhou JH, Chen YG. Expression of the lncRNA ZFAS1 in cervical cancer and its correlation with prognosis and chemosensitivity. Gene 2019; 696:105-112. [PMID: 30738960 DOI: 10.1016/j.gene.2019.01.025] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 12/27/2018] [Accepted: 01/07/2019] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To investigate the expression of the lncRNA ZFAS1 in cervical cancer and its relationship with patient prognosis and cervical cancer cell chemosensitivity. METHODS The expression of ZFAS1 in cervical cancer tissues and cell lines was detected by qRT-PCR. The cervical cancer CaSki and the HeLa cell lines were transfected to be divided into Blank, siR-Control, and siR-ZFAS1 groups. MTT, wound-healing, and transwell assays were used to evaluate cell biological function. Cisplatin with different concentrations was used to treat cells in different transfection groups, and MTT assays were used to detect the cell growth inhibition rate and the half-inhibitory concentration (IC50) of cisplatin was measured. Cell apoptosis was determined by flow cytometry. A xenograft mouse model was used to investigate the effects of siR-ZFAS1 on the chemosensitivity to cisplatin. RESULTS ZFAS1 was significantly upregulated in cervical cancer tissues and cell lines, and increased ZFAS1 levels led to poor prognoses in patients. In addition, cells in the siR-ZFAS1 group showed remarkably reduced ZFAS1 expression as well as cell proliferation, invasion and migration. After being treated with cisplatin at different concentrations, cells in the siR-ZFAS1 group had dramatically increased cell growth inhibition and apoptosis but lower cisplatin IC50s. In addition, siR-ZFAS1 reduced the volumes and weights of tumors in nude mice treated with cisplatin and enhanced the chemosensitivity of cervical cancer cells to cisplatin. CONCLUSION The lncRNA ZFAS1 was upregulated in cervical cancer tissues, and its high expression indicated a poor prognosis. Silencing ZFAS1 may inhibit cell proliferation, migration and invasion and enhance cisplatin chemosensitivity.
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Affiliation(s)
- Lan-Lan Feng
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou 215100, Jiangsu, China
| | - Fang-Rong Shen
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou 215100, Jiangsu, China
| | - Jin-Hua Zhou
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou 215100, Jiangsu, China
| | - You-Guo Chen
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Soochow University, Suzhou 215100, Jiangsu, China.
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Wang ZC, Huang FZ, Xu HB, Sun JC, Wang CF. MicroRNA-137 inhibits autophagy and chemosensitizes pancreatic cancer cells by targeting ATG5. Int J Biochem Cell Biol 2019; 111:63-71. [PMID: 30710750 DOI: 10.1016/j.biocel.2019.01.020] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 12/29/2018] [Accepted: 01/29/2019] [Indexed: 12/26/2022]
Abstract
PURPOSE Autophagy play an important role in tumor chemotherapy resistance. It has been reported that miR-137 expression was reducedand involved in the regulation of sensitivity of PC cells to chemotherapy. However, little is known about the underlying molecular mechanisms. In this study, we hypothesized that miR-137 might sensitize PC cells to chemotherapy thought regulating cell autophagy. METHODS Cell survival was determined with MTT assay. Apoptotic cells were assessed with flow cytometric analysis. Fluorescence intensity of GFP-LC3 and RFP-GFP-LC3 were examined with immunofluorescence analysis to determine the autophagy and autophagic flux level. Western blotting assay was used to determine protein expression levels of LC3II/LC3I, P62, FUNDC1 and ATG5. mRNA expression level of miR-137 was detected by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Dual-luciferase reporter assay was used to evaluate the directly binding of miR-137 with its targets. Xenograft model was setup to evaluate tumor growth. RESULTS The results showed that doxorubicin (Dox) induced autophagy but downregulated the expression level of miR-137 in pancreatic cancer (PC) cells. In turn, overexpression of miR-137 enhanced the effect of Dox on decreasing cell survival, inducing cell apoptosis and inhibiting autophagy rather than influencing autophagic flux in PC cells. Further mechanistic study identified that ATG5 was a direct target of miR-137. Moreover, overexpression of ATG5 dramatically reversed the promotion of apoptosis and inhibition of autophagy mediated by higher expression level of miR-137. We also demonstrated that miR-137 sensitized PANC-1 cells to Dox through inhibiting ATG5 and autophagy in vivo. CONCLUSIONS Our findings demonstrated for the first time that miR-137 was able to promote sensitivity of PC cells to chemotherapy via inhibition of autophagy mediated by ATG5. Therefore, miR-137 may act as a potential therapeutic target for pancreatic cancer.
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Affiliation(s)
- Zhi-Chao Wang
- Department of Hepatobiliary and Pancreatic Surgery, The Third Xiangya Hospital of Central South University, Changsha, 410013, PR China
| | - Fei-Zhou Huang
- Department of Hepatobiliary and Pancreatic Surgery, The Third Xiangya Hospital of Central South University, Changsha, 410013, PR China
| | - Hong-Bo Xu
- Department of Surgery, The Third Xiangya Hospital of Central South University, Changsha 410013, PR China
| | - Ji-Chun Sun
- Department of Hepatobiliary and Pancreatic Surgery, The Third Xiangya Hospital of Central South University, Changsha, 410013, PR China
| | - Chang-Fa Wang
- Department of Hepatobiliary and Pancreatic Surgery, The Third Xiangya Hospital of Central South University, Changsha, 410013, PR China.
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Sun KK, Shen XJ, Yang D, Gan MQ, Liu G, Zhang YF, Hua P, Wang HD, Wu XY. MicroRNA-31 triggers G 2/M cell cycle arrest, enhances the chemosensitivity and inhibits migration and invasion of human gastric cancer cells by downregulating the expression of zeste homolog 2 (ZH2). Arch Biochem Biophys 2019; 663:269-275. [PMID: 30677405 DOI: 10.1016/j.abb.2019.01.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 12/31/2018] [Accepted: 01/20/2019] [Indexed: 01/08/2023]
Abstract
Gastric cancer is the second most leading cause of cancer related mortality across the world over. Although the incidence of GC has declined to some extent but it is still the fourth highly diagnosed cancer across the world. GC generally remains undiagnosed till advanced stages due to unavailability of biomarkers and when diagnosed it becomes difficult to manage due to the lack of therapeutic targets and efficient chemotherapy. There are concrete evidences suggesting that miRNAs may prove important therapeutic targets for the treatment of devastating diseases such as cancer. The study was designed to investigate the tumor suppressive role of miR-31 via regulation of zeste homolog 2 (ZH2). It was found that miR-31 is significantly downregulated in GC cell lines. Overexpression of miR-31 causes significant (P < 0.05) decrease in the viability and colony formation via initiation of G2/M cell cycle arrest of the AGS cancer cells. Moreover, miR-31 overexpression also enhanced the chemosensitivity of miR-31 to the anticancer drug 5-fluorouracil. In silico analysis together with dual luciferase reporter assay indicated zeste homolog 2 (ZH2) to be the potential target of miR-31 in AGS cells. Investigation of ZH2 expression in GC cell lines showed it to be significantly (P < 0.05) upregulated. Nonetheless, overexpression of miR-31 in AGS cells resulted in the suppression of ZH2 expression. Additionally, silencing of ZH2 in the AGS cells also caused inhibition of AGS cell proliferation and colony formation via G2/M arrest. Moreover, overexpression of ZH2 could at least partially reverse the tumor suppressive effects of miR-31 indicating direct involvement of ZH2 in the miR-31 mediated inhibitory effects on AGS cell proliferation. Finally, miR-31 overexpression caused significant (P < 0.05) inhibition of the migration and invasion of the AGS gastric cancer cells. The overexpression of miR-31 also caused downregulation of mesenchymal markers (Vimentin and N-cadherin) and upregulation of epithelial marker (E-cadherin) protein expression was in AGS cells. It is therefore concluded that miR-31 acts as a tumor suppressor and may prove essential in the treatment of GC.
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Affiliation(s)
- Ke-Kang Sun
- Clinical Medical College of Jiangsu University, Department of Gastrointestinal Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, China
| | - Xiao-Jun Shen
- Clinical Medical College of Jiangsu University, Department of Gastrointestinal Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, China
| | - Dong Yang
- Clinical Medical College of Jiangsu University, Department of Gastrointestinal Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, China
| | - Ming-Qiang Gan
- Clinical Medical College of Jiangsu University, Department of Gastrointestinal Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, China
| | - Gang Liu
- Clinical Medical College of Jiangsu University, Department of Gastrointestinal Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, China
| | - Yi-Fan Zhang
- Clinical Medical College of Jiangsu University, Department of Gastrointestinal Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, China
| | - Peng Hua
- Clinical Medical College of Jiangsu University, Department of Gastrointestinal Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, China
| | - Hao-Dong Wang
- Clinical Medical College of Jiangsu University, Department of Gastrointestinal Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, China
| | - Xiao-Yang Wu
- Clinical Medical College of Jiangsu University, Department of Gastrointestinal Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu, 215300, China.
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Küronya Z, Sükösd F, Varga L, Bíró K, Gyergyay F, Géczi L, Nagyiványi K, Jorgo K, Szarvas T, Kovács Á, Laczó I, Varga Z, Pósfai B, Pepó J, Maráz A. ERG expression can predict the outcome of docetaxel combinedwith androgen deprivation therapy in metastatic hormone-sensitiveprostate cancer. Urol Oncol 2019; 37:289.e1-289.e9. [PMID: 30679082 DOI: 10.1016/j.urolonc.2018.12.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Revised: 12/02/2018] [Accepted: 12/05/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Our study aimed to analyze the potential association between clinical parameters and ERG expression and the outcome of docetaxel chemotherapy among patients with metastatic hormone-sensitive prostate cancer. PATIENTS AND METHODS Fifty-five patients with metastatic hormone-sensitive prostate cancer were treated with docetaxel in addition to androgen deprivation therapy. Patient characteristics, clinical factors, and tumor expression of ERG by immunohistochemistry were analyzed with respect to therapeutic response and survival data. RESULTS Relapse free survival (RFS) and overal survival (OS) were 10.5 and 40.4 months, respectively, and both correlated with PSA response (RFS: 16.8 with a ≥50% decrease in PSA vs. 5.9 months in the case of <50% decrease, P < 0.001; OS: 40.4 vs. 11.6 months, respectively, P < 0.001). There was an association between OS and early progression (OS: 40.4 months with progression after 12 months vs. 17.9 months with progression within 12 months, P = 0.009). ERG expression was detected in 21 (42%) samples. ERG positivity was associated with favorable RFS (ERG pos. vs. neg.: 26.0 vs. 11.4 months, P = 0.003). CONCLUSION ERG expression may have a potential predictive value with respect to the effectiveness and outcome of docetaxel chemotherapy combined with androgen deprivation therapy.
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Affiliation(s)
- Zsófia Küronya
- National Institute of Oncology, Department of Medical Oncology and Clinical Pharmacology "C", Budapest, Hungary
| | - Farkas Sükösd
- Department of Pathology, University of Szeged, Szeged, Hungary
| | - Linda Varga
- Department of Oncotherapy, University of Szeged, Szeged, Hungary
| | - Krisztina Bíró
- National Institute of Oncology, Department of Medical Oncology and Clinical Pharmacology "C", Budapest, Hungary
| | - Fruzsina Gyergyay
- National Institute of Oncology, Department of Medical Oncology and Clinical Pharmacology "C", Budapest, Hungary
| | - Lajos Géczi
- National Institute of Oncology, Department of Medical Oncology and Clinical Pharmacology "C", Budapest, Hungary
| | - Krisztián Nagyiványi
- National Institute of Oncology, Department of Medical Oncology and Clinical Pharmacology "C", Budapest, Hungary
| | - Kliton Jorgo
- National Institute of Oncology, Department of Radiotherapy, Budapest, Hungary; Semmelweis University, Department of Oncology, Budapest
| | - Tibor Szarvas
- Department of Urology, Semmelweis University, Budapest, Hungary
| | - Ágnes Kovács
- Boehringer Ingelheim RCV GmbH & Co. KG Branch Office Hungary, Budapest, Hungary
| | | | - Zoltán Varga
- University of Szeged, Department of Oncotherapy, Szeged, Hungary
| | - Boglárka Pósfai
- University of Szeged, Department of Oncotherapy, Szeged, Hungary
| | - Judit Pepó
- University of Szeged, Department of Oncotherapy, Szeged, Hungary
| | - Anikó Maráz
- University of Szeged, Department of Oncotherapy, Szeged, Hungary.
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Peng QP, Du DB, Ming Q, Hu F, Wu ZB, Qiu S. MicroRNA 494 increases chemosensitivity to doxorubicin in gastric cancer cells by targeting phosphodiesterases 4D. Cell Mol Biol (Noisy-le-grand) 2018; 64:62-66. [PMID: 30672438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 10/31/2018] [Accepted: 11/05/2018] [Indexed: 06/09/2023]
Abstract
Acquired drug resistance is one of the main limitations in pharmacological therapy of malignancies including gastric cancer. MicroRNAs (miRNAs) are a class of small noncoding RNAs that suppress their targets by binding to the 3'UTR region of genes. In this study, we explored investigate the target gene of miR-494 and its roles in chemoresistance of gastric cancer. We found that miR-494 was significantly down-regulated in gastric cancer cells lines compared to the normal gastric epithelial cell line. Exogenous overexpression of miR-494 increased the chemosensitivity of gastric cancer cells to doxorubicin. Moreover, miR-494 expression was reduced in a doxorubicin-resistant gastric cancer cells (AGS/dox) compared with the parental cells. MTT assay showed that AGS/dox cells exhibited an elevated viability compared with the parental cells. Enforced expression of miR-494 inhibited AGS/dox cell viability and colony formation ability. In addition, we demonstrated that elevated expression of miR-494 inhibited the mRNA and protein expression of phosphodiesterases 4D (PDE4D) in gastric cancer cell. Luciferase assay showed that miR-494 directly targeted the 3'UTR region of PDE4D. Furthermore, restoration of PDE4D recovered the chemoresistance in miR-494-overexpressed gastric cancer cells. Taken together, this study demonstrated that miR-494 enhanced doxorubicin sensitivity via regulation of PDE4D expression, suggesting a novel therapeutic strategy for anti-chemoresistance in gastric cancer.
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Affiliation(s)
- Qiu-Ping Peng
- Department of Hepatopathy,The Third People's Hospital of Yichang,Hubei 443000,China
| | - De-Bing Du
- Department of Hepatopathy,The Third People's Hospital of Yichang,Hubei 443000,China
| | - Quan Ming
- Department of Hepatopathy,The Third People's Hospital of Yichang,Hubei 443000,China
| | - Fang Hu
- Endoscopy Center, The Third Peo ple's Hospital of Yichang,Hubei 443000,China
| | - Zhen-Bao Wu
- Department of Surgery,The Third People's Hospital of Yichang,Hubei 443000,China
| | - Shaoqin Qiu
- Department of Hepatopathy,The Third People's Hospital of Yichang,Hubei 443000,China
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Chen J, Xu X, Chen J. Clinically relevant concentration of anti-viral drug ribavirin selectively targets pediatric osteosarcoma and increases chemosensitivity. Biochem Biophys Res Commun 2018; 506:604-610. [PMID: 30454696 DOI: 10.1016/j.bbrc.2018.10.124] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 10/20/2018] [Indexed: 12/30/2022]
Abstract
Ribavirin is an anti-viral drug but has recently gained attention as a potential candidate for cancer treatment. In line with these efforts, our work is the first to demonstrate that ribavirin, at clinically relevant concentration, selectively targets pediatric osteosarcoma and increases chemosensitivity. Using preclinical osteosarcoma cell and xenograft models, we found that ribavirin is active against osteosarcoma bulk and subpopulations with highly proliferative and invasive properties via inhibiting growth, inducing apoptosis and suppressing colony formation. At the same concentrations, ribavirin either did not or affected human normal osteoblastic cell and fibroblast cells in a less extent than osteosarcoma cells. Notably, the combination of ribavirin with doxorubicin resulted in greater efficacy than single drug alone. The combination completely arrested the osteosarcoma growth in vivo throughout the whole duration of drug treatment. We further showed that ribavirin acted on osteosarcoma largely via targeting eIF4E. In addition to eIF4E, ribavirin also modulated phosphorylation of Erk and expression of EZH2 and Snail without affecting Akt and mTOR. Lastly, we found that eIF4E expression and phosphorylation were elevated in osteosarcoma compared to normal cells, which might explain the selective anti-osteosarcoma activity of ribavirin. eIF4E depletion mimics the inhibitory effects of ribavirin, further confirm that eIF4E is the essential target of ribavirin in osteosarcoma. Our work provides fundamental evidence of repurposing ribavirin for the treatment of osteosarcoma. Our findings also highlight the therapeutic value of inhibiting eIF4E in osteosarcoma.
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Affiliation(s)
- Jianguo Chen
- Department of Pediatric Surgery, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, People's Republic of China.
| | - Xiaoming Xu
- Department of Orthopedic Surgery, Jingzhou Central Hospital, The Second Clinical Medical College, Yangtze University, Jingzhou, People's Republic of China
| | - Junjun Chen
- Department of Spine Surgery, The Second Hospital of Jingzhou, Jingzhou, People's Republic of China
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