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Abstract
PURPOSE Brain-derived neurotrophic factor (BDNF) belongs to the family of neurotrophic factors that can potentially increase cancer cell growth, survival, proliferation, anoikis, and migration by tyrosine kinase receptors TrkB and the p75NTR death receptor. The activation of BDNF/TrkB pathways leads to several downstream signaling pathways, including PI3K/Akt, Jak/STAT, PLCγ, Ras-Raf-MEK-ERK, NF-kB, and transactivation of EGFR. The current review aimed to provide an overview of the role of BDNF and its signaling in cancer. METHODS We searched a major medical database, PubMed, to identify eligible studies for a narrative synthesis. RESULTS Pathological examinations demonstrate BDNF overexpression in human cancer, notably involving the prostate, lung, breast, and underlying tissues, associated with a higher death rate and poor prognosis. Therefore, measurement of BDNF, either for identifying the disease or predicting response to therapy, can be helpful in cancer patients. Expression profiling studies have recognized the role of microRNAs (miR) in modulating BDNF/TrkB pathways, such as miR-101, miR-107, miR-134, miR-147, miR-191, miR-200a/c, miR-204, miR-206, miR-210, miR-214, miR-382, miR-496, miR-497, miR-744, and miR-10a-5p, providing a potential biological mechanism by which targeted therapies may correlate with decreased BDNF expression in cancers. Clinical studies investigating the use of agents targeting BDNF receptors and related signaling pathways and interfering with the related oncogenic effect, including Entrectinib, Larotrectinib, Cabozantinib, Repotrectinib, Lestaurtinib, and Selitrectinib, are in progress. CONCLUSION The aberrant signaling of BDNF is implicated in various cancers. Well-designed clinical trials are needed to clarify the BDNF role in cancer progression and target it as a therapeutic method.
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Amuti A, Liu D, Maimaiti A, Yu Y, Yasen Y, Ma H, Li R, Deng S, Pang F, Tian Y. Doxorubicin inhibits osteosarcoma progression by regulating circ_0000006/miR-646/ BDNF axis. J Orthop Surg Res 2021; 16:645. [PMID: 34717683 PMCID: PMC8557021 DOI: 10.1186/s13018-021-02782-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 10/06/2021] [Indexed: 01/02/2023] Open
Abstract
Background Osteosarcoma (OS) is the most common aggressive bone tumor in children and teenagers. Doxorubicin (DOX) is a chemotherapeutic drug for OS. This study aims to reveal the effects and underneath mechanism of DOX treatment in OS progression. Methods The expression of circular_0000006 (circ_0000006), microRNA-646 (miR-646) and brain-derived neurotrophic factor (BDNF) was detected by quantitative real-time polymerase chain reaction (qRT-PCR). BDNF protein expression was determined by western blot. Cell proliferation was illustrated by cell counting kit-8 (CCK-8) and cell colony formation assays. Cell migration and invasion were revealed by transwell migration and wound-healing assays and transwell invasion assay, respectively. Cell apoptosis was demonstrated by flow cytometry analysis. The binding relationship of miR-646 and circ_0000006 or BDNF was predicted by circRNA interactome and targetscan online database, respectively, and verified by dual-luciferase reporter assay. The effects of circ_0000006 knockdown on tumor growth in vivo were manifested by in vivo tumor formation assay. Results Circ_0000006 expression and the mRNA and protein levels of BDNF were dramatically upregulated, and miR-646 expression was effectively downregulated in OS tissues or cells compared with control groups. Circ_0000006 expression and BDNF protein expression were lower, and miR-646 expression was higher in DOX treatment groups than in control groups in OS cells. Circ_0000006 knockdown repressed cell proliferation, migration and invasion, whereas promoted cell apoptosis under DOX treatment in OS cells; however, these effects were attenuated by miR-646 inhibitor. Additionally, circ_0000006 sponged miR-646 to bind to BDNF. Circ_0000006 silencing suppressed tumor growth in vivo. Conclusion Circ_0000006 knockdown promoted DOX-mediated effects on OS development by miR-646/BDNF pathway, which provided a theoretical basis in treating OS with DOX.
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Affiliation(s)
- Abulimiti Amuti
- Department of Orthopaedics, The Second Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Dehu Liu
- Department of Osteology, Tai'an Traditional Chinese Medicine Hospital, Taian, Shandong, China
| | - Ayiguli Maimaiti
- Department of Orthopaedics, The Second Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Yao Yu
- Six Subjects of Hand Surgery, Affiliated Central Hospital of Shenyang Medical College, Shenyang, Liaoning, China
| | - Yalikun Yasen
- Department of Orthopaedics, The Second Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Haoguang Ma
- Department of Surgery, Hot Spring Sanatorium of Linyi, Linyi Hedong Central Hospital, Linyi, Shandong, China
| | - Rui Li
- Department of Joint Surgery, The Fourth Hospital of Baotou, Baotou City, Mongolia, China
| | - Shurong Deng
- Department of Pharmacy, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong, China
| | - Fei Pang
- Department of Orthopaedics, Shaoxing People's Hospital, No. 568 North Zhongxing Road, Yuecheng District, Shaoxing City, 312000, Zhejiang Province, China.
| | - Youliang Tian
- Department of Rehabilitation Medicine and Physiotherapy, PLA Strategic Support Force Characteristic Medical Center, No. 9 Anxiang North Lane, Chaoyang District, , Beijing, 100101, China.
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Xing XW, Shi HY, Liu S, Feng SX, Feng SQ, Gong BQ. miR-496/MMP10 Is Involved in the Proliferation of IL-1β-Induced Fibroblast-Like Synoviocytes Via Mediating the NF-κB Signaling Pathway. Inflammation 2021; 44:1359-1369. [PMID: 33548006 DOI: 10.1007/s10753-021-01421-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 01/11/2021] [Accepted: 01/18/2021] [Indexed: 12/18/2022]
Abstract
Rheumatoid arthritis (RA) is a common chronic autoimmune disease featured by synovial inflammation. miR-496 is closely involved in various pathologic conditions. However, its role in RA has not yet been elucidated. Expression of miR-496 and MMP10 was determined based on the clinical samples with RA retrieved from the Gene Expression Omnibus (GEO) datasets. In vitro model of RA was constructed in MH7A cells stimulated by IL-1β (10 ng/mL). Cell counting kit 8 (CCK-8) and flow cytometry experiments were implemented to investigate the cell viability and apoptosis rate of MH7A cells. TargetScan was applied to identify the targets of miR-496, and the regulation of miR-496 on MMP10 expression was validated by a dual-luciferase reporter gene assay. qRT-PCR and western blot analyses were conducted to examine the expression. miR-496 expression was decreased in RA tissues and MH7A cells after IL-1β treatment. Overexpression of miR-496 significantly inhibited IL-1β-treated MH7A cell viability. MMP10 was identified as a target of miR-496 and its expression was negatively regulated by miR-496. The effects of miR-496 on MH7A cell proliferation and apoptosis were reversed by MMP10. The activity of NF-κB pathway was associated with the miR-496/MMP10 axis in IL-1β-stimulated MH7A cells. To summarize, this study demonstrated that miR-496 can impair the proliferative ability and facilitate the apoptosis of IL-1β-treated MH7A through regulating MMP10 expression and NF-κB signaling pathway.
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Affiliation(s)
- Xue-Wu Xing
- Department of Orthopedics, Tianjin First Central Hospital, No.24 FuKang Road, Nankai District, Tianjin, 300192, China
| | - Hong-Yu Shi
- Department of Orthopedics, Tianjin Medical University General Hospital, No.154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Shen Liu
- Department of Orthopedics, Tianjin Medical University General Hospital, No.154 Anshan Road, Heping District, Tianjin, 300052, China
| | - Shu-Xin Feng
- Department of Orthopedics, Tianjin First Central Hospital, No.24 FuKang Road, Nankai District, Tianjin, 300192, China
| | - Shi-Qing Feng
- Department of Orthopedics, Tianjin Medical University General Hospital, No.154 Anshan Road, Heping District, Tianjin, 300052, China.
| | - Bao-Qi Gong
- Department of Rheumatology, Tianjin First Central Hospital, No.24 FuKang Road, Nankai District, Tianjin, 300192, China.
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Yin H, Hu J, Ye Z, Chen S, Chen Y. Serum long non‑coding RNA NNT‑AS1 protected by exosome is a potential biomarker and functions as an oncogene via the miR‑496/RAP2C axis in colorectal cancer. Mol Med Rep 2021; 24:585. [PMID: 34132374 PMCID: PMC8222968 DOI: 10.3892/mmr.2021.12224] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 04/22/2021] [Indexed: 12/12/2022] Open
Abstract
Increasing evidence has indicated that long non-coding RNAs (lncRNAs) serve an essential role in carcinogenesis and cancer development. It has been reported that lncRNA nicotinamide nucleotide transhydrogenase antisense RNA 1 (NNT-AS1) serves a crucial role in several types of cancer. However, the clinical significance of circulating NNT-AS1 expression in colorectal cancer (CRC) remains to be elucidated. The current study aimed to investigate the potential role of NNT-AS1 and the clinical significance of its serum expression levels in patients with CRC. The expression of NNT-AS1 was measured in 40 pairs of tumor and adjacent normal tissues from patients with CRC via reverse transcription-quantitative PCR. The serum expression levels of NNT-AS1 were assayed in an independent cohort of healthy controls and patients with CRC. The levels of NNT-AS1 were also compared between paired preoperative and postoperative serum samples. In addition, the presence of exosomal NNT-AS1 in serum was explored. Furthermore, the biological roles of NNT-AS1 were investigated in CRC cells in vitro. The expression of NNT-AS1 was significantly upregulated in tumor tissues compared with adjacent normal tissues (P<0.05). A higher level of NNT-AS1 was associated with an advanced CRC stage. The serum levels of NNT-AS1 were significantly upregulated in patients with CRC compared with healthy subjects (P<0.05). Furthermore, the NNT-AS1 levels were significantly decreased in postoperative samples compared with preoperative samples (P<0.01). In addition, it was also identified that NNT-AS1 was upregulated in CRC exosomes (P<0.01), whereas no significant difference was observed in NNT-AS1 levels between serum and exosomes. Silencing of NNT-AS1 inhibited the proliferation, migration and invasion of CRC cells. It was also identified that NNT-AS1 exerted its effects via regulation of the microRNA-496/Ras-related protein Rap-2c axis. The present study demonstrated that circulating NNT-AS1, which may be protected by exosomes, could be a novel potential biomarker and therapeutic target in CRC.
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Affiliation(s)
- Hua Yin
- Department of B‑Ultrasonic Room, Hwamei Hospital, University of Chinese Academy of Sciences, Ningbo, Zhejiang 315010, P.R. China
| | - Jingjing Hu
- Department of B‑Ultrasonic Room, Hwamei Hospital, University of Chinese Academy of Sciences, Ningbo, Zhejiang 315010, P.R. China
| | - Zhiying Ye
- Department of B‑Ultrasonic Room, Hwamei Hospital, University of Chinese Academy of Sciences, Ningbo, Zhejiang 315010, P.R. China
| | - Saijun Chen
- Department of B‑Ultrasonic Room, Hwamei Hospital, University of Chinese Academy of Sciences, Ningbo, Zhejiang 315010, P.R. China
| | - Yunwen Chen
- Department of B‑Ultrasonic Room, Hwamei Hospital, University of Chinese Academy of Sciences, Ningbo, Zhejiang 315010, P.R. China
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Peng X, Guo C, Wu Y, Ying M, Chang R, Song L, Zhan L, Zhan X. miR‑224‑5p regulates the proliferation, migration and invasion of pancreatic mucinous cystadenocarcinoma by targeting PTEN. Mol Med Rep 2021; 23:346. [PMID: 33760113 PMCID: PMC7974333 DOI: 10.3892/mmr.2021.11985] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 02/18/2021] [Indexed: 01/07/2023] Open
Abstract
Pancreatic mucinous cystadenocarcinoma (MCC) is a rare malignant tumor, with a limited number of studies. The present study aimed to investigate the function and mechanism of microRNA (miR)-224-5p on proliferation, migration and invasion of MCC of the pancreas. Reverse transcription-quantitative PCR was used to explorethe expression of miR-224-5p and the PTEN gene. MTT, wound healing, Transwell and tumorigenesis assays were conducted to investigate the proliferation, migration and invasion of MCC1 cells in vitro and in vivo. Western blot analysis was employed to test the protein expression of PTEN. The target gene of miR-224-5p was assessed and verified by luciferase assay. miR-224-5p expression was notably higher, while PTEN expression was lower, in MCC1 cells compared with normal tissues and cells. Overexpression of miR-224-5p promoted the proliferation, migration and invasion of MCC and knockdown of miR-224-5p inhibited these functions. Bioinformatics analysis and luciferase assay indicated that PTEN was the direct target gene of miR-224-5p. The negative correlation between miR-224-5p and PTEN was confirmed both in vitro and in vivo. PTEN reversed the effects of miR-224-5p on proliferation, migration and invasion of MCC1 cells. The present study revealed for the first time, to the best of the authors' knowledge, that miR-224-5p was highly expressed and served an oncogenic role in MCC. miR-224-5p not only regulated the proliferation, migration and invasion of pancreatic MCC but may also be a potential therapeutic target for MCC.
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Affiliation(s)
- Xiaobo Peng
- Department of Oncology, Changhai Hospital Affiliated to Naval Military Medical University, Shanghai 200433, P.R. China
| | - Chengtao Guo
- Department of Oncology, Changhai Hospital Affiliated to Naval Military Medical University, Shanghai 200433, P.R. China
| | - Yanjun Wu
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, P.R. China
| | - Mingzhen Ying
- Department of Oncology, Changhai Hospital Affiliated to Naval Military Medical University, Shanghai 200433, P.R. China
| | - Renxu Chang
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, P.R. China
| | - Lele Song
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, P.R. China
| | - Lixing Zhan
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, P.R. China
| | - Xianbao Zhan
- Department of Oncology, Changhai Hospital Affiliated to Naval Military Medical University, Shanghai 200433, P.R. China
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