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Razak MR, Aris AZ, Md Yusoff F, Yusof ZNB, Kim SD, Kim KW. Assessment of RNA extraction protocols from cladocerans. PLoS One 2022; 17:e0264989. [PMID: 35472091 PMCID: PMC9041806 DOI: 10.1371/journal.pone.0264989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 02/18/2022] [Indexed: 11/18/2022] Open
Abstract
The usage of cladocerans as non-model organisms in ecotoxicological and risk assessment studies has intensified in recent years due to their ecological importance in aquatic ecosystems. The molecular assessment such as gene expression analysis has been introduced in ecotoxicological and risk assessment to link the expression of specific genes to a biological process in the cladocerans. The validity and accuracy of gene expression analysis depends on the quantity, quality and integrity of extracted ribonucleic acid (RNA) of the sample. However, the standard methods of RNA extraction from the cladocerans are still lacking. This study evaluates the extraction of RNA from tropical freshwater cladocerans Moina micrura using two methods: the phenol-chloroform extraction method (QIAzol) and a column-based kit (Qiagen Micro Kit). Glycogen was introduced in both approaches to enhance the recovery of extracted RNA and the extracted RNA was characterised using spectrophotometric analysis (NanoDrop), capillary electrophoresis (Bioanalyzer). Then, the extracted RNA was analysed with reverse transcription polymerase chain reaction (RT-PCR) to validate the RNA extraction method towards downstream gene expression analysis. The results indicate that the column-based kit is most suitable for the extraction of RNA from M. micrura, with the quantity (RNA concentration = 26.90 ± 6.89 ng/μl), quality (A260:230 = 1.95 ± 0.15, A280:230 = 1.85 ± 0.09) and integrity (RNA integrity number, RIN = 7.20 ± 0.16). The RT-PCR analysis shows that the method successfully amplified both alpha tubulin and actin gene at 33-35 cycles (i.e. Ct = 32.64 to 33.48). The results demonstrate that the addition of glycogen is only suitable for the phenol-chloroform extraction method. RNA extraction with high and comprehensive quality control assessment will increase the accuracy and reliability of downstream gene expression, thus providing more ecotoxicological data at the molecular biological level on other freshwater zooplankton species.
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Affiliation(s)
- Muhammad Raznisyafiq Razak
- Faculty of Forestry and Environment, Department of Environment, Universiti Putra Malaysia, Selangor, Malaysia
| | - Ahmad Zaharin Aris
- Faculty of Forestry and Environment, Department of Environment, Universiti Putra Malaysia, Selangor, Malaysia
- International Institute of Aquaculture and Aquatic Sciences, Universiti Putra Malaysia, Negeri Sembilan, Malaysia
| | - Fatimah Md Yusoff
- International Institute of Aquaculture and Aquatic Sciences, Universiti Putra Malaysia, Negeri Sembilan, Malaysia
- Faculty of Agriculture, Department of Aquaculture, Universiti Putra Malaysia, Selangor, Malaysia
| | - Zetty Norhana Balia Yusof
- Faculty of Biotechnology and Biomolecular Science, Department of Biochemistry, Universiti Putra Malaysia, Selangor, Malaysia
- Institute of Bioscience, Universiti Putra Malaysia, Selangor, Malaysia
| | - Sang Don Kim
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology, Buk-gu, Gwangju, Republic of Korea
| | - Kyoung Woong Kim
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology, Buk-gu, Gwangju, Republic of Korea
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Nephrin and podocin mRNA detection in urine sediment of dogs with chronic kidney disease: preliminary observations. J Vet Res 2022; 66:281-288. [PMID: 35892112 PMCID: PMC9281531 DOI: 10.2478/jvetres-2022-0019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 03/29/2022] [Indexed: 11/20/2022] Open
Abstract
Abstract
Introduction
Dogs with chronic kidney disease (CKD) may have alterations in the glomerular filtration barrier, including podocyte loss. Detection of podocyte mRNA in urine could be useful for assessing podocyturia in dogs with kidney disease. The objective of this study was to evaluate the presence of nephrin mRNA (NPHS1) and podocin mRNA (NPHS2) in urine sediments of dogs with naturally occurring CKD and healthy dogs.
Material and Methods
Twenty-four dogs, 14 with CKD and 10 as healthy controls, underwent clinical evaluation. The dogs with CKD were divided into two groups, according to the International Renal Interest Society criteria: stage 1 or 2 CKD (n = 5) and stage 3 or 4 CKD (n = 9). Urine was collected by catheterisation or free catch and RNA isolation from the urine sediments was optimised using glycogen as a co-precipitant. Detection of NPHS1 and NPHS2 in the sediment samples was performed using quantitative real-time PCR.
Results
Both types of mRNA were detected in samples from all groups, but the percentages of detection were higher in the group of dogs with stage 1 or 2 CKD and lower in the group of dogs with stage 3 or 4 disease.
Conclusion
Physiological podocyturia was observed in healthy dogs, and the results suggest differential podocyturia in dogs with CKD, according to the stage of the disease, i.e. an increase in podocyturia in dogs at stage 1 or 2 and a reduction in podocyturia in dogs at stage 3 or 4.
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Zhou M, Huo J, Wang C, Wang W. UPLC/Q-TOF MS Screening and Identification of Antibacterial Compounds in Forsythia suspensa (Thunb.) Vahl Leaves. Front Pharmacol 2022; 12:704260. [PMID: 35153732 PMCID: PMC8831367 DOI: 10.3389/fphar.2021.704260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Accepted: 12/10/2021] [Indexed: 11/13/2022] Open
Abstract
Forsythia suspensa (Thunb.) Vahl (F. suspensa) is a traditional Chinese medical herb and only its fruit is currently used in clinical therapies. However, the discarded parts like leaves also contain a large number of active components. In this study, we used macroporous adsorption resin to enrich the effective components from F. suspensa leaves. The separated active compounds were then identified and quantified by ultra-performance liquid chromatography coupled with quadrupole time of flight mass spectrometry (UPLC/Q-TOF MS) and high-performance liquid chromatography Active components with antibacterial properties extracted from F. suspensa leaves were confirmed in vitro and the corresponding mechanisms were explored. In sum, a stable and effective method for extracting antibacterial active components from F. suspensa leaves was established in this study, which proved the practicability of F. suspensa leaves as traditional Chinese medicine and is conducive to the more comprehensive utilization of the plant.
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Affiliation(s)
- Mingyue Zhou
- Institute of Chinese Materia Medica, Heilongjiang Academy of Chinese Medicine Sciences, Harbin, China
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, China
| | - Jinhai Huo
- Institute of Chinese Materia Medica, Heilongjiang Academy of Chinese Medicine Sciences, Harbin, China
| | - Cairen Wang
- State Key Laboratory of Quality Research in Chinese Medicines, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Taipa, China
| | - Weiming Wang
- Institute of Chinese Materia Medica, Heilongjiang Academy of Chinese Medicine Sciences, Harbin, China
- *Correspondence: Weiming Wang,
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Lv D, Fan Y, Zhong W, Lonan P, Liu K, Wu M, Wu Y, Liang Y, Lai X, Li G, Yu L. Genetic Identification of Edible Bird's Nest in Thailand Based on ARMS-PCR. Front Genet 2021; 12:632232. [PMID: 33763113 PMCID: PMC7983251 DOI: 10.3389/fgene.2021.632232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 02/12/2021] [Indexed: 11/16/2022] Open
Abstract
Edible bird’s nest (EBN) is a popular delicacy in the Asian Pacific region originating from Indonesia, Malaysia, Thailand and Vietnam, which consist of various potential medicine value in Traditional Chinese Medicine (TCM). Thailand is one of the main exporters of EBN. However, the genetic information of EBN, a key part of molecular biology, has yet to be reported in Thailand. It is necessary to explore the genetic information of EBN in Thailand based on a quick and simple method to help protect the rights and interests of consumers. This research aimed to systematically evaluate different methods of extracting EBN DNA to improve the efficiency of the analysis of cytochrome b (Cytb) and NADH dehydrogenase subunit 2 (ND2) gene sequences, the establishment of phylogenetic trees, and the genetic information of EBN in Thailand. Additionally, we aimed to develop a quick and simple method for identifying EBN from different species based on the genetic information and amplification-refractory mutation system PCR (ARMS-PCR). By comparing the four methods [cetyltrimethylammonium bromide (CTAB), sodium dodecyl sulfate (SDS), kit and guanidinium isothiocyanate methods] for EBN extraction, we found that the guanidinium isothiocyanate method was the optimal extraction method. Phylogenetic trees generated on the basis of Cytb and ND2 gene analyses showed that 26 samples of house EBN and 4 samples of cave EBN came from Aerodramus fuciphagus and Aerodramus maximus, respectively. In addition, to distinguish different samples from different species of Apodiformes, we designed 4 polymerase chain reaction (PCR) amplification primers based on the ND2 gene sequences of A. fuciphagus and A. maximus. The ARMS-PCR results showed band lengths for A. fuciphagus EBN of 533, 402, and 201 bp, while those for A. maximus EBN were 463, 317, and 201 bp. Collectively, the results showed that ARMS-PCR is a fast and simple method for the genetic identification of EBN based on designing specific original identification primers.
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Affiliation(s)
- Dongyong Lv
- School of Nursing, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yaohua Fan
- Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Wanhua Zhong
- School of Physical Education and Health, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Piyanuch Lonan
- Laboratory Animal Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Kunfeng Liu
- Laboratory Animal Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Maoyong Wu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yina Wu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yueliang Liang
- Guangzhou Tongkang Pharmaceutical Co., Ltd., Guangzhou, China
| | - Xiaoping Lai
- Guangdong Provincial Key Laboratory of New Drug Development and Research of Chinese Medicine, Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Geng Li
- Laboratory Animal Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Liangwen Yu
- Guangdong Yunfu Vocational College of Chinese Medicine, Yunfu, China
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Shang X, Song X, Wang K, Yu M, Ding S, Dong X, Xie L, Song X. SNORD63 and SNORD96A as the non-invasive diagnostic biomarkers for clear cell renal cell carcinoma. Cancer Cell Int 2021; 21:56. [PMID: 33461545 PMCID: PMC7812721 DOI: 10.1186/s12935-020-01744-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 12/31/2020] [Indexed: 11/10/2022] Open
Abstract
Background Increasing evidence has demonstrated that snoRNAs play crucial roles in tumorigenesis of various cancer types. However, researches on snoRNAs in ccRCC were very little. This study mainly aimed to validate the differential expression and the potential diagnostic value of SNORD63 and SNORD96A in ccRCC. Methods SnoRNAs expression was downloaded from the SNORic and TCGA database including 516 patients with ccRCC and 71 control cases. SNORD63 and SNORD96A expression were further detected in 54 tumor and adjacent FFPE ccRCC tissues, 55 plasma and 75 urinary sediment of ccRCC patients. Then, differential expression and diagnostic value of SNORD63 and SNORD96A were further calculated. Results SNORD63 and SNORD96A expression were significantly increased in ccRCC tissues compared with normal tissues from the TCGA database (both, P < 0.0001). In addition, we found that SNORD63 and SNORD96A localized in plasma and US stably after treating with RNase A. Meanwhile, SNORD63 and SNORD96A in FFPE and US were elevated in ccRCC patients (all, P < 0.0001). However, plasma SNORD63 expression had no significance while SNORD96A significantly increased in plasma of ccRCC patients. Notably, the AUC of SNORD63 in US was 0.7055, by comparison the AUC of plasma SNORD63 was only 0.5161. However, the AUC of plasma SNORD96A was up to 0.8909, by comparison the AUC of SNORD96A in US was 0.6788. Interestingly, the AUC of plasma SNORD96A in early stage ccRCC was highly up to 0.9359. Conclusions Our findings revealed that SNORD63 in US and SNORD96A in plasma could act as the promising non-invasive diagnostic biomarkers for ccRCC patients.
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Affiliation(s)
- Xiaoling Shang
- Department of Clinical Laboratory, Cheeloo College of Medicine, Shandong Cancer Hospital and Institute, Shandong University, Jinan, 250012, Shandong, China.,Department of Clinical Laboratory, Shandong First Medical University and Shandong Academy of Medical Sciences, Shandong Cancer Hospital and Institute, 440 Ji-Yan Road, Jinan, 250117, Shandong, People's Republic of China
| | - Xingguo Song
- Department of Clinical Laboratory, Shandong First Medical University and Shandong Academy of Medical Sciences, Shandong Cancer Hospital and Institute, 440 Ji-Yan Road, Jinan, 250117, Shandong, People's Republic of China
| | - Kangyu Wang
- Department of Clinical Laboratory, Shandong First Medical University and Shandong Academy of Medical Sciences, Shandong Cancer Hospital and Institute, 440 Ji-Yan Road, Jinan, 250117, Shandong, People's Republic of China
| | - Miao Yu
- Department of Clinical Laboratory, Shandong First Medical University and Shandong Academy of Medical Sciences, Shandong Cancer Hospital and Institute, 440 Ji-Yan Road, Jinan, 250117, Shandong, People's Republic of China.,Department of Clinical Laboratory, Shandong Provincial Third Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250031, China
| | - Shanshan Ding
- Department of Clinical Laboratory, Shandong First Medical University and Shandong Academy of Medical Sciences, Shandong Cancer Hospital and Institute, 440 Ji-Yan Road, Jinan, 250117, Shandong, People's Republic of China
| | - Xiaohan Dong
- Department of Clinical Laboratory, Shandong First Medical University and Shandong Academy of Medical Sciences, Shandong Cancer Hospital and Institute, 440 Ji-Yan Road, Jinan, 250117, Shandong, People's Republic of China
| | - Li Xie
- Department of Clinical Laboratory, Shandong First Medical University and Shandong Academy of Medical Sciences, Shandong Cancer Hospital and Institute, 440 Ji-Yan Road, Jinan, 250117, Shandong, People's Republic of China
| | - Xianrang Song
- Department of Clinical Laboratory, Shandong First Medical University and Shandong Academy of Medical Sciences, Shandong Cancer Hospital and Institute, 440 Ji-Yan Road, Jinan, 250117, Shandong, People's Republic of China.
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Zhang L, Sun J, Zhang M, Lin Y, Fang L, Fang X, Mai W, Yin Z. The significance of combined detection of CysC, urinary mAlb and β 2-MG in diagnosis of the early renal injury in pregnancy-induced hypertension syndrome. Saudi J Biol Sci 2019; 26:1982-1985. [PMID: 31889782 PMCID: PMC6923450 DOI: 10.1016/j.sjbs.2019.07.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 07/25/2019] [Accepted: 07/31/2019] [Indexed: 02/06/2023] Open
Abstract
Objective To elaborate the significance of combined detection of cystatin C, urinary micro-albumin (mAlb) and β2-microglobulin (β2-MG) in diagnosis of the early renal injury in pregnancy-induced hypertension syndrome. Methods A total of 120 patients with pregnancy-induced hypertension syndrome who were admitted to this hospital for treatment between November 2015 and October 2018 were enrolled as subjects, and divided into the control group (without complication of renal injury, n = 76) and the observation group (with complication of renal injury, n = 44) according to the complications of early renal injury. Furthermore, 60 patients who participated in the antenatal care in this hospital were enrolled as the normal subjects (normal group). Automatic biochemistry analyzer was utilized to measure CysC, urinary mAlb and β2-MG in serum to evaluate the specificity, sensitivity, accuracy, positive predictive value (PPV) and negative predictive value (NPV) of single or combined measurements of these indexes in diagnosis of the early renal injury in pregnancy-induced hypertension syndrome. Results In the observation group, the levels of CysC, urinary mAlb and β2-MG were higher than those in the control group, while the levels in the normal group were the lowest (P < 0.05). Combined measurement of CysC, urinary mAlb and β2-MG showed a higher accuracy (90.0%) in diagnosis of the early renal injury in pregnancy-induced hypertension syndrome than the single measurements, and the difference had statistical significance (P < 0.05). Besides, the sensitivity, specificity, PPV and NPV of the combined measurements were 94.59%, 87.30%, 81.40% and 94.49%, slightly higher than the single measurements, with no statistical significance in differences (P > 0.05). Conclusion CysC, urinary mAlb and β2-MG can reflect the renal injury effectively, and the combined measurements shows potent accuracy in diagnosis of the early renal injury in pregnancy-induced hypertension syndrome, thereby providing the scientific evidence for early diagnosis and stipulation of rational therapeutic regimen and improving the pregnancy outcome.
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Affiliation(s)
- Lin Zhang
- Department of Clinical Laboratory, Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing 100050, China
| | - Jin Sun
- Department of Obstetrics and Gynecology, The General Hospital of Western Theater Command, Chengdu 610083, China
| | - Ming Zhang
- Child Healthcare Department, Zhucheng Maternal and Child Health Hospital, Zhucheng 262200, China
| | - Yun Lin
- Department of Clinical Laboratory, The First Hospital Affiliated Yunnan University of Traditional Chinese Medicine, Kunming 650021, China
| | - Le Fang
- Department of Clinical Laboratory, 521 Hospital of Ordnance Industry, Xi’an 710065, China
| | - Xing Fang
- Department of Clinical Laboratory, Jinhua People’s Hospital of Zhejiang Province, Jinhua 321000, China
| | - Weitu Mai
- Department of Clinical Laboratory, He Xian Memorial Hospital of Panyu District, Guangzhou 511400, China
| | - Zhiping Yin
- Department of Clinical Laboratory, The First Hospital Affiliated Yunnan University of Traditional Chinese Medicine, Kunming 650021, China
- Corresponding author.
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Synthesis and characterization of Ag+-decorated poly(glycidyl methacrylate) microparticle design for the adsorption of nucleic acids. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1081-1082:1-7. [DOI: 10.1016/j.jchromb.2018.02.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 02/05/2018] [Accepted: 02/15/2018] [Indexed: 11/18/2022]
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Urine RNA Processing in a Clinical Setting: Comparison of 3 Protocols. Female Pelvic Med Reconstr Surg 2017; 25:247-251. [PMID: 29194081 DOI: 10.1097/spv.0000000000000525] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
OBJECTIVE The objective of this study was to compare quantitative and qualitative RNA extraction results from clinical voided urine samples between 3 commercially available extraction protocols. METHODS For phase 1, fresh voided urine samples from 10 female subjects were collected and processed in clinic and transported to the laboratory with cold packs. RNA was purified with 1 of 3 RNA extraction protocols: (1) TRI Reagent Protocol; (2) Absolutely RNA Nanoprep Kit; and (3) ZR Urine RNA Isolation Kit. Real-time polymerase chain reactions (RT-PCR) were performed. As the ZR Urine RNA Isolation Kit provided the highest quality RNA in phase 1, for phase 2, RNA was extracted from 9 additional voided urine specimens using this kit to perform additional qualitative analyses. RESULTS Median RNA yield was significantly higher with the TRI Reagent Protocol as compared with the other protocols (P = 0.007). However, there was a significantly lower median threshold cycle value from polymerase chain reaction (indicating improved downstream application performance) with the ZR Urine RNA Isolation Kit as compared with the other methods (P = 0.005). In phase 2, the median RNA integrity number of urine RNA was 2.5 (range, 1.6-5.9). CONCLUSIONS Although other methods may provide a higher quantity of RNA, when using clinical urine samples, the ZR Urine RNA Isolation Kit provided the highest quality of extracted RNA. This kit is especially attractive for the clinical setting because it does not require an initial centrifugation step. The urine RNA obtained with this kit may be useful for polymerase chain reaction but is not likely to be of high enough integrity for RNA sequencing.
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Hu H, Li H, He Y. MicroRNA-17 downregulates expression of the PTEN gene to promote the occurrence and development of adenomyosis. Exp Ther Med 2017; 14:3805-3811. [PMID: 29042983 DOI: 10.3892/etm.2017.5013] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 03/10/2017] [Indexed: 12/15/2022] Open
Abstract
The aim of the current study was to evaluate the expression of microRNA (miR)-17 in the endometrial tissues of patients with adenomyosis (AM) and determine its biological function in the occurrence and development of the disease. A total of 45 fresh endometrial tissues of AM patients and 32 normal endometrial tissues were collected from healthy controls. The expression of miR-17 was evaluated using reverse transcription-quantitative polymerase chain reaction (RT-qPCR). The miR-17-targeting gene phosphatase and tensin homolog (PTEN) was predicted using bioinformatics and its expression was evaluated with RT-qPCR and western blot analysis. Endometrial cells were isolated from patients with AM and healthy controls. They were cultured in vitro and transfected with antagomiR-17 to downregulate miR-17 expression, subsequently cell viability and apoptosis were measured using MTT and flow cytometry. The expression of PTEN and cell cycle- and apoptosis-related proteins were evaluated using western blot analysis. Endometrial cells that stably overexpressed PTEN were screened in vitro by co-culture with G418. A dual-luciferase reporter assay was conducted to verify whether miR-17 was directly bound to PTEN mRNA. The results demonstrated that expression of miR-17 was significantly increased in the endometrial tissues of patients with AM compared with control patients (P<0.05). PTEN mRNA and protein expression were significantly lower in the AM group compared with the control group (P<0.05). When the expression of miR-17 in the cells was downregulated, the expression of PTEN was significantly increased (P<0.05). In addition, expression of Bcl-2 protein was significantly decreased and that of Bax protein significantly increased compared with the negative control (both P<0.05). The expression of cyclins E1 and D1 were also significantly downregulated (P<0.05). When PTEN was overexpressed or miR-17 was downregulated, the viability of endometrial cells significantly decreased and cell apoptosis significantly increased (all P<0.05). A dual-luciferase reporter assay indicated that miR-17 could directly bind to the PTEN mRNA 3'-untranslated region to regulate its expression. Thus the current study indicates that expression of miR-17 was increased in the endometrial tissues of patients with AM and may influence cell apoptosis and cyclin expression through the targeted regulation of PTEN. These results suggest that miR-17 promotes the occurrence and development of AM.
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Affiliation(s)
- Haiyan Hu
- Department of Obstetrics and Gynecology, Shenzhen Meternal and Child Healthcare Hospital, Southern Medical University, Guangzhou, Guangdong 518028, P.R. China
| | - Huijuan Li
- Department of Obstetrics and Gynecology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, P.R. China
| | - Yuanli He
- Department of Obstetrics and Gynecology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, P.R. China
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Yin J, Liu H, Huan L, Song S, Han L, Ren F, Zhang Z, Zang Z, Zhang J, Wang S. Role of miR-128 in hypertension-induced myocardial injury. Exp Ther Med 2017; 14:2751-2756. [PMID: 28928797 PMCID: PMC5590046 DOI: 10.3892/etm.2017.4886] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 01/13/2017] [Indexed: 12/14/2022] Open
Abstract
The present study aimed to investigate the role and mechanism of micro RNA (miR)-128 in hypertension-induced myocardial injury. The peripheral blood of patients with hypertension was collected and the expression of miR-128 was detected using fluorescence reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Primary myocardial cells isolated from rat in vitro were cultured under conditions of hypoxia and glucose deprivation, and miR-128 expression was measured by RT-qPCR. The expression of c-Met protein was measured using western blot analysis and the apoptosis of transfected cells was measured by flow cytometry in rat myocardial cells following transfection with miR-128 mimics or c-Met siRNA. A luciferase assay was applied to assess the binding of miR-128 to c-Met mRNA. miR-128 expression was significantly higher in hypertension patients compared with controls (P<0.05). miR-128 expression was higher in patients with stage III/IV hypertension compared with patients with stage II hypertension. Similarly, miR-128 expression in primary cardiomyocytes cultured under deprivation of oxygen and glucose increased with the culture time and reached a peak at 12 h. c-Met expression decreased significantly (P<0.05) and the ratio of apoptotic cells increased significantly (P<0.05), following transfection of miR-128 mimics. The number of apoptotic cells also increased when c-Met expression was knocked down by siRNA. The dual luciferase assay indicated that fluorescence intensity decreased significantly in miR-128 mimics and wild type c-Met group (P<0.05), indicating that miR-128 can directly target c-Met. Therefore, the results of the current study suggest that miR-128 may promote myocardial cell injury by regulating c-Met expression.
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Affiliation(s)
- Jie Yin
- Department of Cardiology, Laiwu People's Hospital, Laiwu, Shangdong 271100, P.R. China
| | - Hongyan Liu
- Department of Cardiology, Laiwu People's Hospital, Laiwu, Shangdong 271100, P.R. China
| | - Lei Huan
- Department of Cardiology, Laiwu People's Hospital, Laiwu, Shangdong 271100, P.R. China
| | - Suping Song
- Department of The Second Medicine, Laiwu People's Hospital, Laiwu, Shangdong 271100, P.R. China
| | - Liying Han
- Ordance Industrial 521 Hospital, Xi'an, Shanxi 710000, P.R. China
| | - Faxin Ren
- Department of Cardiology, Yuhangding Hospital of Yantai, Yantai, Shangdong 264000, P.R. China
| | - Zengtang Zhang
- Department of Cardiology, Laiwu People's Hospital, Laiwu, Shangdong 271100, P.R. China
| | - Zhiqiang Zang
- Department of Cardiology, Laiwu People's Hospital, Laiwu, Shangdong 271100, P.R. China
| | - Junye Zhang
- Laboratory of Cardiac Function, Qilu Hospital of Shangdong University, Jinan, Shandong 250012, P.R. China
| | - Shu Wang
- Sino German Laboratory, Fuwai Hospital, Beijing 100037, P.R. China
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Gao Z, Wang L, Wang J, Yang F, Qu J. Molecular mechanism of miR-181b in heart disease due to pregnancy-induced hypertension syndrome. Exp Ther Med 2017; 14:2953-2959. [PMID: 28912851 PMCID: PMC5585881 DOI: 10.3892/etm.2017.4882] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 01/06/2017] [Indexed: 12/26/2022] Open
Abstract
The present study aimed to investigate the molecular mechanisms of microRNA (miR)-181b in heart disease due to hypertensive disorders complicating pregnancy (HDCP) through regulating the expression of metallopeptidase inhibitor 3 (TIMP3). miR-181b expression was detected by reverse transcription-quantitative polymerase chain reaction in peripheral blood samples from patients with HDCP. These samples were analyzed for clinical pathological characteristics. The primary cardiomyocytes of rats were cultured in hypoxic conditions for 24 h, in which miR-181b expression was detected at different time points. The expression of TIMP3 was assessed in normal rat cardiomyocytes following transfection with miR-181b mimics by western blot analysis. The TIMP3 protein was also detected in cardiomyocytes following transfection with TIMP3 short interfering-RNA. The apoptosis rate of transfected cardiomyocytes was detected by flow cytometry following 24 h of culture in a hypoxic environment. Luciferase assay was applied to validate whether miR-181b binds to the 3' untranslated region of TIMP3 mRNA. miR-181b expression was significantly downregulated in the peripheral blood of patients with HDCP and the miR-181b expression was negatively associated with the grades of hypertension (P<0.05). The results of luciferase assay indicated that miR-181b directly targets TIMP3. The apoptosis rates of rat cardiomyocytes in the group transfected with miR-181b or TIMP3 siRNA was significantly lower than the normal control group (P<0.05). miR-181b may inhibit apoptosis of cardiomyocytes to protect myocardial cells through directly targeting TIMP3 genes, which serve important roles in HDCP.
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Affiliation(s)
- Zheng Gao
- Department of Obstetrics and Gynecology, Laiwu City People's Hospital, Laiwu, Shandong 271100, P.R. China
| | - Li Wang
- Department of Gynecology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong 250011, P.R. China
| | - Jinyun Wang
- Department of Obstetrics and Gynecology, Laiwu City People's Hospital, Laiwu, Shandong 271100, P.R. China
| | - Fengyong Yang
- Intensive Care Unit (ICU), Laiwu City People's Hospital, Laiwu, Shandong 271100, P.R. China
| | - Jin Qu
- Ministry of Painless Endoscopy, Jining No. 1 People's Hospital, Jining, Shandong 272000, P.R. China
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