LncRNA LINC00880 promotes cell proliferation, migration, and invasion while inhibiting apoptosis by targeting CACNG5 through the MAPK signaling pathway in spinal cord ependymoma
Authors: Yong-Jian Wang
Dong-Mei Wu
Xin-Rui Han
Bin Hu
Chun-Hui Sun
Juan Zhuang
Xin Wen
Min Shen
Meng-Qiu Li
Jun Lu
Shan Wang
Shao-Hua Fan
Qun Shan
Zi-Feng Zhang
Yuan-Lin Zheng
Journal: Journal of Cellular Physiology (2018)
Discipline: MOLECULAR BIOLOGY & GENETICS
Keywords: CACNG5; LINC00880; MAPK signaling pathway; apoptosis; invasion
Affiliations: Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu ProvinceSchool of Life ScienceJiangsu Normal UniversityXuzhouP.R. China, School of Environment Science and Spatial InformaticsChina University of Mining and TechnologyXuzhouP.R. China, Jiangsu Key Laboratory for Eco‐Agricultural Biotechnology around Hongze LakeSchool of Life SciencesHuaiyin Normal UniversityHuaianP.R. China

Abstract:  The present study was to investigate the effect of lncRNA LINC00880 targeting CACNG5 on cell proliferation, migration, invasion, and apoptosis in spinal cord ependymoma (SCE) through the MAPK signaling pathway. GEO database was used to download gene expression data related with SCE (GSE50161 and GSE66354) and annotation file. LncRNA with differential expression was predicted by Multi Experiment Matrix website (MEM). The target gene was analyzed by KEGG pathway enrichment analysis. SCE tissues and adjacent tissues were collected. The positive expression of CACNG5 protein was tested by immunohistochemistry. Expression of LINC00880, CACNG5, and MAPK signaling pathway-related proteins was measured with qRT-PCR and Western blotting. Cell proliferation, migration, invasion, cycle, and apoptosis were detected using MTT, Transwell assay, Scratch test, and Flow cytometry. SCE tissues showed increased LINC00880 expression. CACNG5 was a target gene of LINC00880 and correlated with MAPK signaling pathway. Compared with adjacent tissues, SCE tissues showed lower positive expression of CACNG5. Compared with the blank group, LINC00880 expression was higher in the LINC00880 vector and LINC00880 vector + CACNG5 vector groups, and lower in the si-LINC00880 and si-LINC00880 + si-CACNG5 groups; in the LINC00880 vector and si-CACNG5 groups, expression of survivin, p38MAPK, ERK1/2, JNK1/2/3 increased and CACNG5 and Bax expression reduced, the proliferation, invasion and migration of tumor cells increased, and apoptosis rate decreased. Opposite results were found in the si-LINC00880 and CACNG5 vector groups. The findings indicate that lncRNA LINC00880 targeting CACNG5 inhibits cell apoptosis and promotes proliferation, migration, and invasion in SCE through the MAPK signaling pathway. 

Retracted: Yes

PubPeer comments:
 Below here, Fig 12A,  Comparison of invasive tumor cells in SCE Note: A, Microscopic observation of invasive cells . ![file] Two of the panels appear in (above) Fig 8A of [Zhang et al (2018)] ,  Proliferation and invasion ability of cells in all groups after cell transfection detected by Transwell assay Notes: A, comparison of migration and invasion abilities of cells among all groups (u00d7 200) . , 
 FIGURE 11  Apoptosis of tumor cells in SCE. (a) Image of flow cytometry . Clusters of cells recur between these independent experiments. ![file] , 
 FIGURE 8(b)  Comparison of mRNA and protein expression of related genes in each group. ... (b) Image of protein bands . ![file] Protein blobs appear to be doubled. In fact the entire p38MAPK band resembles a vertically-stretched version of the beta-Actin loading control. The latter is made familiar by the presence of distinctive  bubble and  eye blobs, e.g. [Zhang et al (2018)] . , 
 #1 Overlap with Fig. 5A B from [Lu et al (2018)] .  Effect of miR-152 on migration and invasion of GIST-T1 cell by inhibiting CTSL. Notes. A: Cell migration in each group detected by Transwell method; B: Cell invasion in each group detected by Transwell method . At left. ![file] , 
 9Fig 12A again: ![] Another panel marked, to show overlap with Fig 5 of [Wang et al (2016)] . ![] , 
 #2 Fig 11 again: ![] More similar than I would have expected to Fig 9C of [Chai et al (2018)] . ![] , 
 Retracted [20 July 2021] . -------------------------------------- The above article, published online on 07 December 2017 in Wiley Online Library has been retracted by agreement between the journal s Editor in Chief, Prof. Dr. Gregg Fields, and Wiley Periodicals LLC. The retraction has been agreed following an investigation based on allegations raised by a third party. A detailed investigation revealed that several image elements of the experimental data were published elsewhere in a different scientific context. Thus, the editors consider the conclusions of this article to be invalid. , 
 Assessed here, as part of the first of 10 broad investigations: https: www.nsfc.gov.cn publish portal0 tab442 info85495.htm **Decisions on handling scientific research misconduct cases investigated and dealt with in 2022 (first batch)** Date 2022-05-13 Source: u3000 Author: u3000 u3010 Large, Middle and Small u3011 u3010Printu3011 u3010Closeu3011 u3000u3000The National Natural Science Foundation of China resolutely implements the spirit of the  Several Opinions on Further Strengthening the Construction of Scientific Research Integrity and  Opinions on Further Promoting the Spirit of Scientists and Strengthening the Construction of Style and Study Style by the General Office of the Central Committee of the Communist Party of China and the General Office of the State Council. Horizontal science and technology are self-reliant and self-reliant, continue to carry out scientific research integrity construction, and seriously investigate and deal with scientific research misconduct involving the National Natural Science Foundation of China. The Supervision Committee of the National Natural Science Foundation of China conducts investigations, verifications and comprehensive judgments on the accepted scientific research integrity cases, in accordance with the Regulations of the National Natural Science Foundation of ) and  Measures for Investigation and Handling of Scientific Research Misconduct in National Natural Science Foundation of China and other regulations and systems to propose handling suggestions. After deliberation at the second executive meeting of the National Natural Science Foundation of China in 2022, it was decided to deal with the relevant parties involved. The 10 handling decisions (online release version) that have been criticized and criticized are hereby announced. -------------------------------- About the existence of papers published on Wu Dongmei, Zheng Yuanlin, Lu Jun, etc. - Falsification of pictures or data, fabrication of research process, use of others signatures without consent, and false information in project final reports - processing decision - National Science and Technology Financial Supervisory Office [2022] No. 1 u3000u3000The Supervision Committee of the National Natural Science Foundation of China launched an investigation into several papers of Jiangsu Normal University, including Wu Dongmei, Zheng Yuanlin, and Jun Jun, for suspected academic misconduct. The papers involved are as follows: ... Paper 30:  Dong-Mei Wu # , Yong-Jian Wang # , Xin-Rui Han, Xin Wen, Shan Wang, Min Shen, Shao-Hua Fan, Juan Zhuang, Zi-Feng Zhang, Qun Shan, Meng-Qiu Li , Bin Hu, Chun-Hui Sun, Jun Lu*, Yuan-Lin Zheng*. **LncRNA LINC00880 promotes cell proliferation, migration, and invasion while inhibiting apoptosis by targeting CACNG5 through the MAPK signaling pathway in spinal cord ependymoma**. Journal of Cellular Biochemistry, 2018, 233(9):6689-6704.u201d (marked with fund numbers 81271225, 31201039, 81171012, 30950031, 81571055, 81400902) ... According to the investigation of the supporting unit, the above 35 papers involved all have the problem of improper use of pictures or data fraud, and the pictures or data in question are all provided by third-party companies. Among the 35 papers involved, 34 (except paper 21) still have the problem of using others signatures without consent, and papers 4, 5, 9, 12, 30, and 34 also have the problem of fabricating the research process. Wu Dongmei is the author of the above 35 papers involved, of which 12 papers (papers 2, 8, 9, 10, 11, 12, 14, 15, 25, 26, 30, 35) are the first author and 22 papers (Paper 1, 4, 5, 6, 7, 13, 16, 17, 18, 19, 20, 21, 22, 23, 24, 27, 28, 29, 31, 32, 33, 34) Corresponding author, They should be primarily responsible for the objective results of falsifying pictures or data, using others signatures without consent, and fabricating research processes; Zheng Yuanlin and Lu Jun, as the co-corresponding authors of the 35 papers involved, were negligent in reviewing and took secondary responsibility. In addition, Wu Dongmei included 4 papers involved (papers 21, 24, 28, 29) in the final report of the National Natural Science Foundation of China (Grant No. 81400902), and Zheng Yuanlin included 9 papers involved (papers 6, 8, 10, 13, 21, 24, 26, 28, 29) included in the final report of the National Natural Science Foundation of China (Grant No. 81571055), and should be responsible for the objective results of false information in the final report. u3000u3000After deliberation at the 12th meeting of the Fifth Supervision Committee of the National Natural Science Foundation of China (Life Medicine Professional Committee) and the approval of the second executive meeting of the National Natural Science Foundation of China in 2022, it was decided to follow the thirty-fifth National Natural Science Foundation of China Regulations. Article 4, Article 17, Items 3, 4, and 9 of  Measures for Handling Misconduct in Science Fund Work by the Supervision Committee of the National Natural Science Foundation of China (for Trial Implementation) , revocation of Wu Dongmei s National Natural Science Foundation of Molecular mechanism of TRPV4-mediated domoic acid treatment-induced cognitive deficits in mice (Grant No. 81400902), recovering the allocated funds, permanently disqualifying Wu Dongmei from the National Natural Science Foundation of China (since January 18, 2022), Give Wu Dongmei a circular of criticism; decide to follow Article 35, item 4 of the  National Natural Science Foundation of China Regulations , and refer to  The National Natural Science Foundation of China Supervision Committee s Handling of Misconduct in Science Fund Work (Trial) Tenth Items 3 and 4 of seven articles, the Zheng Yuanlin National Natural Science Foundation of China project  The Mechanism of HDAC6 Activating HMGB1 RAGE Signaling Axis to Mediate Cognitive Defects in Type 2 Diabetic Mice (Approval No. 81571055), recover the allocated funds, cancel Zheng Yuanlin will be eligible to apply for the National Natural Science Foundation of China for 5 years (January 18, 2022 to January 17, 2027), and will give Zheng Yuanlin a notice of criticism; it is decided to refer to the  National Natural Science Foundation of China Supervision Committee on misconduct in the work of the National Natural Science Foundation of China. Items 3 and 4 of Article 17 of the Measures (for Trial Implementation), the Army s National Natural Science Foundation of China project application qualification will be cancelled for 5 years (January 18, 2022 to January 17, 2027), and the Army will be criticized in a circular. - National Natural Science Foundation of China - March 30, 2022 ,