scholarly journals Long Non-Coding RNA SH3PXD2A-AS1 Promotes Cell Progression Partly Through Epigenetic Silencing P57 and KLF2 in Colorectal Cancer

2018 ◽  
Vol 46 (6) ◽  
pp. 2197-2214 ◽  
Author(s):  
Zhonghua Ma ◽  
Peng Peng ◽  
Jing Zhou ◽  
Bingqing Hui ◽  
Hao Ji ◽  
...  
Keyword(s):  
Gene Expression ◽  
Colorectal Cancer ◽  
Cell Lines ◽  
Molecular Mechanisms ◽  
The Cancer Genome Atlas ◽  
Current Evidence ◽  
Migration And Invasion ◽  
Mice Model ◽  
Tissue Samples

Background/Aims: Colorectal cancer (CRC) is one of the most commonly diagnosed malignancies worldwide. Current evidence has revealed the key roles of long non-coding RNAs (IncRNAs) in multiple cancers, including CRC. In this study we identified the lncRNA SH3PXD2A-AS1 as a novel molecule associated with CRC progression by analyzing the publicly available data from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) datasets. Methods: Quantitative real-time polymerase chain reaction (qRT-PCR) assays were performed to examine the expression levels of SH3PXD2A-AS1 in CRC tissue samples and CRC cell lines. Cell viability examination, colony-formation experiments, ethynyl deoxyuridine (Edu) assays and flow cytometry were performed to investigate the roles of SH3PXD2A-AS1 in CRC proliferation, cell cycle regulation, and apoptosis. Transwell assays were used to explore the effects of SH3PXD2A-AS1 on CRC cells migration and invasion. A nude mice model was used to assess the effects of SH3PXD2A-AS1 on tumorigenesis in vivo. Subcellular fractionation, RNA immunoprecipitation (RIP), and chromatin immunoprecipitation (ChIP) assays were conducted to detect the molecular mechanisms of SH3PXD2A-ASl-mediated gene expression. Rescue assays were used to determine whether P57 and Kruppel-like factor 2 (KLF2) were involved in SH3PXD2A-ASl-dependent CRC proliferation. Results: We firstly found that SH3PXD2A-AS1 was significantly upregulated in CRC tissues and cell lines, and overexpression of SH3PXD2A-AS1 was correlated with tumor size, TNM stage, and lymph node metastasis in patients with CRC. Furthermore, SH3PXD2A-AS1 knockdown inhibited CRC cells proliferation, migration and invasion in vitro, and suppressed tumorigenesis in vivo. Mechanistic studies indicated that SH3PXD2A-AS1 could epiqenetically repress P57 and KLF2 expression through interaction with EZH2. Rescue experiments suggested that SH3PXD2A-ASl-mediated oncogenesis was impaired by overexpression of P57 or KLF2. Interestingly, the expression of SH3PXD2A-AS1 was inversely correlated with the expression of P57 and KLF2 in CRC tissue samples. Conclusion: Our research presents the first evidence that SH3PXD2A-AS1 acts as an oncogene in CRC, and may be a promising diagnostic or therapeutic target in patients with CRC.

scholarly journals LOXL1 modulates the malignant progression of colorectal cancer by inhibiting the transcriptional activity of YAP

2020 ◽  
Author(s):  
Lin Hu ◽  
Jing Wang ◽  
Yunliang Wang ◽  
Linpeng Wu ◽  
Chao Wu ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Cell Lines ◽  
Cancer Progression ◽  
Colony Formation ◽  
Transcriptional Activity ◽  
Tumour Growth ◽  
Molecular Mechanisms ◽  
Migration And Invasion

Abstract Background: LOX-like 1 (LOXL1) is a lysyl oxidase, and emerging evidence has revealed its effect on malignant cancer progression. However, its role in colorectal cancer (CRC) and the underlying molecular mechanisms have not yet been elucidated. Methods: LOXL1 expression in colorectal cancer was detected by immunohistochemistry, western blotting and real-time PCR. In vitro , colony formation, wound healing, migration and invasion assays were performed to investigate the effects of LOXL1 on cell proliferation, migration and invasion. In vivo , metastasis models and mouse xenografts were used to assess tumorigenicity and metastasis ability. Molecular biology experiments were utilized to reveal the underlying mechanisms by which LOXL1 modulates the Hippo pathway. Results: LOXL1 was highly expressed in normal colon tissues compared with cancer tissues. In vitro, silencing LOXL1 in CRC cell lines dramatically enhanced migration, invasion, and colony formation, while overexpression of LOXL1 exerted the opposite effects. The results of the in vivo experiments demonstrated that the overexpression of LOXL1 in CRC cell lines drastically inhibited metastatic progression and tumour growth. Mechanistically, LOXL1 inhibited the transcriptional activity of Yes-associated protein (YAP) by interacting with MST1/2 and increasing the phosphorylation of MST1/2. Conclusions: LOXL1 may function as an important tumour suppressor in regulating tumour growth, invasion and metastasis via negative regulation of YAP activity.

scholarly journals LOXL1 modulates the malignant progression of colorectal cancer by inhibiting the transcriptional activity of YAP

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Lin Hu ◽  
Jing Wang ◽  
Yunliang Wang ◽  
Linpeng Wu ◽  
Chao Wu ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Cell Lines ◽  
Cancer Progression ◽  
Colony Formation ◽  
Transcriptional Activity ◽  
Tumour Growth ◽  
Molecular Mechanisms ◽  
Migration And Invasion

Abstract Background LOX-like 1 (LOXL1) is a lysyl oxidase, and emerging evidence has revealed its effect on malignant cancer progression. However, its role in colorectal cancer (CRC) and the underlying molecular mechanisms have not yet been elucidated. Methods LOXL1 expression in colorectal cancer was detected by immunohistochemistry, western blotting and real-time PCR. In vitro, colony formation, wound healing, migration and invasion assays were performed to investigate the effects of LOXL1 on cell proliferation, migration and invasion. In vivo, metastasis models and mouse xenografts were used to assess tumorigenicity and metastasis ability. Molecular biology experiments were utilized to reveal the underlying mechanisms by which LOXL1 modulates the Hippo pathway. Results LOXL1 was highly expressed in normal colon tissues compared with cancer tissues. In vitro, silencing LOXL1 in CRC cell lines dramatically enhanced migration, invasion, and colony formation, while overexpression of LOXL1 exerted the opposite effects. The results of the in vivo experiments demonstrated that the overexpression of LOXL1 in CRC cell lines drastically inhibited metastatic progression and tumour growth. Mechanistically, LOXL1 inhibited the transcriptional activity of Yes-associated protein (YAP) by interacting with MST1/2 and increasing the phosphorylation of MST1/2. Conclusions LOXL1 may function as an important tumour suppressor in regulating tumour growth, invasion and metastasis via negative regulation of YAP activity. Graphical abstract

scholarly journals LOXL1 modulates the malignant progression of colorectal cancer by inhibiting the transcriptional activity of YAP

2020 ◽  
Author(s):  
Lin Hu ◽  
Jing Wang ◽  
Yunliang Wang ◽  
Linpeng Wu ◽  
Chao Wu ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Cell Lines ◽  
Colony Formation ◽  
Transcriptional Activity ◽  
Tumour Growth ◽  
Molecular Mechanisms ◽  
Malignant Progression ◽  
Migration And Invasion

Abstract Background LOX-like 1 (LOXL1), as a lysyl oxidase, emerging evidences revealed the effect in cancer malignant progression. However, its role in colorectal cancer (CRC) and the underlying molecular mechanisms have not yet been elucidated. Methods LOXL1 expression in colorectal cancer was detected by immunohistochemistry, western blot and real-time PCR. In vitro , colony formation assay, wound healing assay, migration and invasion experiment were performed to investigate the effects of LOXL1 in cell proliferation, migration and invasion, respectively. In vivo , metastasis models and mouse xenograft were used to determine tumorigenicity and metastasis ability. Molecular biology experiments were utilized to reveal the underlying mechanisms of LOXL1 modulating Hippo pathway. Results LOXL1 is highly expressed in normal colon tissues compared with cancer tissues. In vitro, Silencing LOXL1 in CRC cell lines dramatically enhanced migration, invasion, and colony formation, while overexpression of LOXL1 manifested the opposite effects. Results of the in vivo experiments demonstrated that the enforced expression of LOXL1 in CRC cell lines had drastically inhibited the progression of metastasis and tumour growth. Mechanistically, LOXL1 inhibited the transcriptional activity of Yes-associated protein (YAP) was through interaction with MST1/2 and increasing the phosphorylation of MST1/2. Conclusions LOXL1 may function as an important tumour suppressor in regulating tumour growth, invasion and metastasis via negative regulating of YAP activity.

scholarly journals Dietary delphinidin inhibits human colorectal cancer metastasis associating with upregulation of miR-204-3p and suppression of the integrin/FAK axis

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Chi-Chou Huang ◽  
Chia-Hung Hung ◽  
Tung-Wei Hung ◽  
Yi-Chieh Lin ◽  
Chau-Jong Wang ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Cell Lines ◽  
Molecular Mechanisms ◽  
Cancer Metastasis ◽  
Migration And Invasion ◽  
Colorectal Cancer Metastasis ◽  
Β3 Integrin ◽  
Underlying Mechanisms ◽  
Sw620 Cells

AbstractDelphinidin is a flavonoid belonging to dietary anthocyanidin family that has been reported to possess diverse anti-tumoral activities. However, the effects of delphinidin on colorectal cancer (CRC) cells and the underlying mechanisms are not fully understood. Thus, we aimed to investigate the anti-cancer activity of delphinidin in CRC cells and the underlying molecular mechanisms. The effects of delphinidin on the viability, metastatic characteristics, signaling, and microRNA (miR) profile of human CRC cell lines used were analyzed. In vivo metastasis was also evaluated using xenograft animal models. Our findings showed that delphinidin (<100 μM) inhibited the colony formation of DLD-1, SW480, and SW620 cells, but non-significantly affected cell viability. Delphinidin also suppressed the migratory ability and invasiveness of the tested CRC cell lines, downregulated integrin αV/β3 expression, inhibited focal adhesion kinase (FAK)/Src/paxillin signaling, and interfered with cytoskeletal construction. Analysis of the miR expression profile revealed a number of miRs, particularly miR-204-3p, that were significantly upregulated and downregulated by delphinidin. Abolishing the expression of one upregulated miR, miR-204-3p, with an antagomir restored delphinidin-mediated inhibition of cell migration and invasiveness in DLD-1 cells as well as the αV/β3-integrin/FAK/Src axis. Delphinidin also inhibited the lung metastasis of DLD-1 cells in the xenograft animal model. Collectively, these results indicate that the migration and invasion of CRC cells are inhibited by delphinidin, and the mechanism may involve the upregulation of miR-204-3p and consequent suppression of the αV/β3-integrin/FAK axis. These findings suggest that delphinidin exerts anti-metastatic effects in CRC cells by inhibiting integrin/FAK signaling and indicate that miR-204-3p may play an important role in CRC metastasis.

scholarly journals TEAD4 modulated LncRNA MNX1-AS1 contributes to gastric cancer progression partly through suppressing BTG2 and activating BCL2

2020 ◽  
Vol 19 (1) ◽  
Author(s):  
You Shuai ◽  
Zhonghua Ma ◽  
Weitao Liu ◽  
Tao Yu ◽  
Changsheng Yan ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Cancer Progression ◽  
Molecular Mechanisms ◽  
Mechanistic Model ◽  
Ectopic Expression ◽  
Luciferase Reporter ◽  
Migration And Invasion ◽  
Tissue Samples ◽  
Reporter Assays

Abstract Background Gastric cancer (GC) is the third leading cause of cancer-related mortality globally. Long noncoding RNAs (lncRNAs) are dysregulated in obvious malignancies including GC and exploring the regulatory mechanisms underlying their expression is an attractive research area. However, these molecular mechanisms require further clarification, especially upstream mechanisms. Methods LncRNA MNX1-AS1 expression in GC tissue samples was investigated via microarray analysis and further determined in a cohort of GC tissues via quantitative reverse transcription polymerase chain reaction (qRT-PCR) assays. Cell proliferation and flow cytometry assays were performed to confirm the roles of MNX1-AS1 in GC proliferation, cell cycle regulation, and apoptosis. The influence of MNX1-AS1 on GC cell migration and invasion was explored with Transwell assays. A xenograft tumour model was established to verify the effects of MNX1-AS1 on in vivo tumourigenesis. The TEAD4-involved upstream regulatory mechanism of MNX1-AS1 was explored through ChIP and luciferase reporter assays. The mechanistic model of MNX1-AS1 in regulating gene expression was further detected by subcellular fractionation, FISH, RIP, ChIP and luciferase reporter assays. Results It was found that MNX1-AS1 displayed obvious upregulation in GC tissue samples and cell lines, and ectopic expression of MNX1-AS1 predicted poor clinical outcomes for patients with GC. Overexpressed MNX1-AS1 expression promoted proliferation, migration and invasion of GC cells markedly, whereas decreased MNX1-AS1 expression elicited the opposite effects. Consistent with the in vitro results, MNX1-AS1 depletion effectively inhibited the growth of xenograft tumour in vivo. Mechanistically, TEAD4 directly bound the promoter region of MNX1-AS1 and stimulated the transcription of MNX1-AS1. Furthermore, MNX1-AS1 can sponge miR-6785-5p to upregulate the expression of BCL2 in GC cells. Meanwhile, MNX1-AS1 suppressed the transcription of BTG2 by recruiting polycomb repressive complex 2 to BTG2 promoter regions. Conclusions Our findings demonstrate that MNX1-AS1 may be able to serve as a prognostic indicator in GC patients and that TEAD4-activatd MNX1-AS1 can promote GC progression through EZH2/BTG2 and miR-6785-5p/BCL2 axes, implicating it as a novel and potent target for the treatment of GC.

scholarly journals Potential Role of microRNA-183 as a Tumor Suppressor in Hepatocellular Carcinoma

2018 ◽  
Vol 51 (5) ◽  
pp. 2065-2072 ◽  
Author(s):  
Wei Bian ◽  
Hongfei Zhang ◽  
Miao Tang ◽  
Shaojun Zhang ◽  
Lichao Wang ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Hepg2 Cells ◽  
Molecular Mechanisms ◽  
The Cancer Genome Atlas ◽  
Migration And Invasion ◽  
Metastatic Progression ◽  
Mesenchymal Transition ◽  
Reporter Assays

Background/Aims: Disseminated tumors, known as metastases, are responsible for ninety-percent of mortality due to cancer. Epithelial to mesenchymal transition, a phenomenon required for morphological conversion of non-motile discoid shaped epithelial cells to highly motile spindle-shaped mesenchymal cells, is thought to be a pre-requisite for metastatic progression. Metastasis-associated 1 (MTA1) protein is a prime inducer of EMT and metastatic progression in all solid tumors including hepatocellular carcinoma (HCC). However, the molecular mechanisms that regulate the expression and function of MTA1 in HCC have not been elucidated. Methods: In silico prediction algorithms were used to find microRNAs (miRNAs) that may target MTA1. We examined the relationship between the expression of MTA1 and miR-183 using quantitative real time PCR. We also determined the levels of the MTA1 protein using immunohistochemistry. Reporter assays, in the presence and absence of the miR-183 mimic, were used to confirm MTA1 as a bona fide target of miR183. The effect of miR-183 on HCC pathogenesis was determined using a combination of in vitro migration and invasion assay, together with in vivo xenograft experiments. The correlation between miR-183 and MTA1 expression was also studied in samples from HCC patients, and in The Cancer Genome Atlas dataset. Results: Analysis of the sequence database revealed that MTA1 is a putative target of miR-183. MTA1 protein and RNA expression showed opposite trends to miR-183 expression in breast, renal, prostate, and testicular tissue samples from cancer patients, and in the metastatic HCC cell line HepG2. An inverse correlation was also observed between MTA1 (high) and miR-183 (low) expression within samples from HHC patients and in the TCGA dataset. Reporter assays in HepG2 cells showed that miR-183 could inhibit translation of a reporter harboring the wild-type, but not the mutant miR-183 3’-untranslated region (UTR). In addition, miR-183 significantly inhibited in vitro migration and invasion in HepG2 cells, and in vivo hepatic metastasis. Conclusion: Our results reveal a novel post-transcriptional regulatory mechanism for MTA1 expression via miR-183, which is suppressed during HCC pathogenesis.

scholarly journals MeCP2 Promotes Colorectal Cancer Metastasis by Modulating ZEB1 Transcription

Cancers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 758
Author(s):  
Dan Luo ◽  
Wei Ge
Keyword(s):  
Colorectal Cancer ◽  
Molecular Mechanisms ◽  
Cancer Metastasis ◽  
The Cancer Genome Atlas ◽  
Mobility Shift ◽  
Migration Ability ◽  
Invasion And Migration ◽  
Distant Organ Metastasis

Background: Recurrence and distant organ metastasis is a major cause of death in colorectal cancer (CRC); however, the underlying molecular mechanisms regulating this phenomenon are poorly understood. MeCP2 is a key epigenetic regulator and is amplified in many types of cancer. Its role in CRC and the molecular mechanisms underlying its action remain unknown. Methods: We used western blot and immunohistochemistry to detect MeCP2 expression in CRC tissues, and then investigated its biological functions in vitro and in vivo. Chromatin immunoprecipitation, co-immunoprecipitation, and electrophoretic mobility shift assays were used to detect the associations among MeCP2 (Methyl-CpG binding protein 2), SPI1 (Spi-1 Proto-Oncogene), and ZEB1 (Zinc Finger E-Box Binding Homeobox 1). Results: Using the Cancer Genome Atlas and Oncomine databases, we found MeCP2 expression was upregulated in CRC tissues and this upregulation was related to poor prognosis. Meanwhile, MeCP2 depletion (KO/KD) in CRC cells significantly inhibited stem cell frequency, and invasion and migration ability in vitro, and suppressed CRC metastasis in vivo. Mechanistically, we show MeCP2 binds to the transcription factor SPI1, and aids its recruitment to the ZEB1 promoter. SPI1 then facilitates ZEB1 expression at the transcription level. In turn, ZEB1 induces the expression of MMP14, CD133, and SOX2, thereby maintaining CRC stemness and metastasis. Conclusions: MeCP2 is a novel regulator of CRC metastasis. MeCP2 suppression may be a promising therapeutic strategy in CRC.

scholarly journals Downregulation of CRABP2 Inhibit the Tumorigenesis of Hepatocellular Carcinoma In Vivo and In Vitro

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Qingmin Chen ◽  
Ludong Tan ◽  
Zhe Jin ◽  
Yahui Liu ◽  
Ze Zhang
Keyword(s):  
Hepatocellular Carcinoma ◽  
Retinoic Acid ◽  
Cell Lines ◽  
Molecular Mechanisms ◽  
Tumor Stage ◽  
Migration And Invasion ◽  
Hcc Cells

Cellular retinoic acid-binding protein 2 (CRABP2) binds retinoic acid (RA) in the cytoplasm and transports it into the nucleus, allowing for the regulation of specific downstream signal pathway. Abnormal expression of CRABP2 has been detected in the development of several tumors. However, the role of CRABP2 in hepatocellular carcinoma (HCC) has never been revealed. The current study aimed to investigate the role of CRABP2 in HCC and illuminate the potential molecular mechanisms. The expression of CRABP2 in HCC tissues and cell lines was detected by western blotting and immunohistochemistry assays. Our results demonstrated that the expression levels of CRABP2 in HCC tissues were elevated with the tumor stage development, and it was also elevated in HCC cell lines. To evaluate the function of CRABP2, shRNA-knockdown strategy was used in HCC cells. Cell proliferation, metastasis, and apoptosis were analyzed by CCK-8, EdU staining, transwell, and flow cytometry assays, respectively. Based on our results, knockdown of CRABP2 by shRNA resulted in the inhibition of tumor proliferation, migration, and invasion in vitro, followed by increased tumor apoptosis-related protein expression and decreased ERK/VEGF pathway-related proteins expression. CRABP2 silencing in HCC cells also resulted in the failure to develop tumors in vivo. These results provide important insights into the role of CRABP2 in the development and development of HCC. Based on our findings, CRABP2 may be used as a novel diagnostic biomarker, and regulation of CRABP2 in HCC may provide a potential molecular target for the therapy of HCC.

scholarly journals MiR-130a-3p inhibits the viability, proliferation, invasion, and cell cycle, and promotes apoptosis of nasopharyngeal carcinoma cells by suppressing BACH2 expression

2017 ◽  
Vol 37 (3) ◽  
Author(s):  
Xin Chen ◽  
Bo Yue ◽  
Changming Zhang ◽  
Meihao Qi ◽  
Jianhua Qiu ◽  
...  
Keyword(s):  
Nasopharyngeal Carcinoma ◽  
Cell Lines ◽  
Cell Apoptosis ◽  
Epithelial Mesenchymal Transition ◽  
Migration And Invasion ◽  
Down Regulation ◽  
Tissue Samples ◽  
Mesenchymal Transition

The aim of the present study was to explore the mechanism through which miR-130a-3p affects the viability, proliferation, migration, and invasion of nasopharyngeal carcinoma (NPC). Tissue samples were collected from the hospital department. NPC cell lines were purchased to conduct the in vitro and in vivo assays. A series of biological assays including MTT, Transwell, and wound healing assays were conducted to investigate the effects of miR-130a-3p and BACH2 on NPC cells. MiR-130a-3p was down-regulated in both NPC tissues and cell lines, whereas BACH2 was up-regulated in both tissues and cell lines. MiR-130a-3p overexpression inhibited NPC cell viability, proliferation, migration, and invasion but promoted cell apoptosis. The converse was true of BACH2, the down-regulation of which could inhibit the corresponding cell abilities and promote apoptosis of NPC cells. The target relationship between miR-130a-3p and BACH2 was confirmed. The epithelial–mesenchymal transition (EMT) pathway was also influenced by miR-130a-3p down-regulation. In conclusion, miR-130a-3p could bind to BACH2, inhibit NPC cell abilities, and promote cell apoptosis.

scholarly journals Restoring HOXD10 Exhibits Therapeutic Potential for Ameliorating Malignant Progression and 5-Fluorouracil Resistance in Colorectal Cancer

2021 ◽  
Vol 11 ◽  
Author(s):  
Weijie Pan ◽  
Kaijing Wang ◽  
Jiayong Li ◽  
Hanhua Li ◽  
Yuchan Cai ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Cell Lines ◽  
Therapeutic Potential ◽  
Methylation Status ◽  
Suppressor Gene ◽  
Resistant Cell ◽  
The Cancer Genome Atlas ◽  
Migration And Invasion ◽  
Dependent Manner ◽  
Normal Tissues

Emerging evidence suggests that hypermethylation of HOXD10 plays an important role in human cancers. However, the biological and clinical impacts of HOXD10 overmethylation and its downstream targets in colorectal cancer remain unknown. We evaluated the methylation level of HOXD10 in paired cancer and normal tissues (n = 42) by using pyrosequencing, followed by validation of the methylation status of HOXD10 from The Cancer Genome Atlas (TCGA) datasets with 302 cancer tissues and 38 normal tissues. The biological function of HOXD10 was characterized in cell lines. We further evaluated the effects of HOXD10 and its targets on chemoresistance in our established resistant cell lines and clinical cohort (n = 66). HOXD10 was found frequently methylated in colorectal cancer, and its hypermethylation correlates with its low expression level, advanced disease, and lymph node metastasis. Functionally, HOXD10 acts as a tumor suppressor gene, in which HOXD10-expressing cells showed suppressed cell proliferation, colony formation ability, and migration and invasion capacity. Mechanistically, DNMT1, DNMT3B, and MeCP2 were recruited in the HOXD10 promoter, and demethylation by 5-Aza-2′-deoxycytidine (5-Aza-CdR) treatment or MeCP2 knockdown can sufficiently induce HOXD10 expression. HOXD10 regulates the expressions of miR-7 and IGFBP3 in a promoter-dependent manner. Restoration of the expression of HOXD10 in 5-fluorouracil (5-FU)-resistant cells significantly upregulates the expressions of miR-7 and IGFBP3 and enhances chemosensitivity to 5-FU. In conclusion, we provide novel evidence that HOXD10 is frequently methylated, silenced, and contributes to the development of colorectal cancers. Restoration of HOXD10 activates the expressions of miR-7 and IGFBP3 and results in an inhibited phenotype biologically, suggesting its potential therapeutic relevance in colorectal cancer (CRC).

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