miR-7 expression

We further confirmed the differential expression of miR-7, miR-551a, miR-139-5p, and some of their overlapping target genes in tumor and non-tumor tissues derived from patients with HCC using RT-qPCR. Overall, we identified an immune-related miRNA signature that is strongly correlated with the prognosis and immune microenvironment of HCC; and confirmed the differential expression of the three most important microRNAs and their overlapping target genes in tumor and non-tumor tissues derived from HCC patients.

The findings suggest that hsa-circ-0013561 downregulation inhibits HNSCC metastasis and progression through PDK3 expression and miR-7-5p binding modulation.

The addition of hydroxychloroquine, an autophagy inhibitor, reduced autophagy and increased apoptosis in DLBCL cells...MiR-7-5p also suppressed autophagy and apoptosis by targeting AMBRA1 in DLBCL cells. Therefore, these data suggest that targeting miR-7-5p may be a promising strategy in DLBCL therapy.

A1312C mutation impairs HOXA5 binding, thereby reducing the transcriptional activity of miR-7-2 promoter, resulting in downregulation of miR-7 expression. Together, these data may provide new insights into the dysregulation of specific miRNA expression in NSCLC and ultimately prove to be helpful in the diagnostic, prognostic, and therapeutic strategies against NSCLC.

miR-7 might inhibit TRAF6/NF-κB target a signaling pathway of TLR4 and promote CRC occurrence. miR-7 may therefore be used as a sensitive biomarker in CRC patients.

1S, KMS-11, RPMI-8226, H929, and U266) and patient samples to 10 nM panobinostat and 1 µM vorinostat for 48 h, we performed quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR) and observed significant downregulation in the expression of miR-7...1S and KMS-11 cells to the BRD4 inhibitor JQ1, which suppresses MYC, at concentrations of 50 and 100 nM for 48 h, qRT-PCR showed that the expression of miR-7 was significantly downregulated in these cell lines...The favorable combination effect of bortezomib with HDAC inhibitors could be due to the modulation of the miR-7- PSME3 axis... We revealed that miR-7 exerts anti-myeloma effects and that PSME3 is one of the targets of miR-7. miR-7 is an interesting microRNA because it is positively regulated by MYC, even though it is tumor-suppressive. Elucidating the role of miR-7 may lead to the re-discovery of HDAC inhibitors in MM therapeutic strategies.

Through the regulation of the Rb/E2F1 signaling pathway, the overexpression of miR-7-5p mitigated HQ-induced malignant phenotype in TK6 cells by impeding cell cycle progression. In conclusion, miR-7-5p overexpression appears to be involved in HQ-induced malignant transformation by suppressing Rb/E2F1 signaling pathway, resulting in a deceleration of the cell cycle progression.

miR-186 and miR-7 expression in BC tissues was higher in patients with better outcomes of PTX-based neoadjuvant therapy. High expressions of miR-186 and miR-7 are associated with good response to PTX, whereas their low expressions may be associated with resistance to PTX in BC, indicating the possibility of developing innovative test systems for the prediction of the PTX response, which can be used before the start of neo-adjuvant chemotherapy for BC.

Ingenuity pathway analysis predicted miR-7-5p to inhibit the mRNA expression of Krüppel-like factor 4, epidermal growth factor receptor, insulin-like growth factor 1 receptor, v-raf-1 murine leukemia viral oncogene homolog 1 and insulin receptor substrate ½, and insulin receptor, while metformin activated these miRNAs via transforming growth factor-β1 and Smad2/3. We proved the pro-atherogenic effect of miR-7-5p that maybe used as a prognostic biomarker.

In conclusion, this study demonstrates that circSCAP is significantly upregulated in NSCLC cell lines and tissues and elucidates that circSCAP facilitates NSCLC progression by sponging miR-7 and upregulating SMAD2. The study provides a novel molecular target for early diagnosis and treatment of NSCLC.

Our findings provide evidence that ANRIL targets the miR-7-5p/PARP1 axis to exert its regulatory effect on HR repair, suggesting that altering ANRIL expression may be a promising strategy to overcome radiation resistance.

Tail vein injection of magnetic nanoparticles carrying miR-7-5p mimics into the PDX mice significantly inhibited tumor growth with or without irradiation treatment in vivo. Our current studies not only demonstrate an anti-cancer function of miR-7-5p in regulating CSC properties and radiosensitivity in colorectal cancer, but also provide a novel potential strategy for delaying or reverse radiation resistance in preoperative radiotherapy of CRC patients.

In addition, the effects and mechanisms of ICA and curcumol on autophagy, ferroptosis, and lipid metabolism in PCa cells were verified in vivo. ICA and curcumol synergistically regulated the miR-7/mTOR/SREBP1 pathway to induce autophagy and ferroptosis in PCa cells and affected lipid metabolism.

Finally, no significant changes were detected in the biological indicators or the histology of some important tissues and organs, including heart, liver, and spleen. On the whole, our study revealed that the optimized TTF-1 promoter could more effectively operate miR-7 to influence the growth of human NSCLC cells, providing a new basis for the development of microRNA-based targeting gene therapy against clinical lung cancer.

Furthermore, overexpression of RHPN1-AS1 promoted phosphorylation of phosphatidylinositol 3-kinase (PI3K), AKT and mTOR, inhibited LC3-I to LC3-II conversion and reduced apoptosis in PCa cells, while GSK2126458 (an inhibitor of PI3K) reversed the effect of RHPN1-AS1 on PCa cells. In summary, RHPN1-AS1 acted as a ceRNA of miR-7-5p to upregulate EGFR expression, silencing RHPN1-AS1 suppressed PCa tumor progression by inducing autophagy and apoptosis in PCa cells through the miR-7-5p/EGFR/PI3K/AKT/mTOR pathway.

Besides, LINC02389 could reverse the inhibitory effect of cisplatin on NSCLC cells, which was partially reversed by attenuating the expression of miR-7-5p. Our research firstly demonstrated that lncRNA LINC02389 acted as an oncogene to promote progression, oxidative stress, and cisplatin resistance through sponging miR-7-5p and may provide therapeutic targets for NSCLC.

Detection of inflammatory factors [TNF- α、 IL-8, IL-6], detection of miR-7 expression, detection of Akt, GSK-3 using Western blot β、β- Catenin protein expression. It was concluded that modulation of miR-7 in rats with colorectal cancer and HP infection enables regulation of the Akt / GSK-3 β/β- Catenin pathway to improve serum inflammation condition and alleviate HP infection in rats, which played a better role in intervention.

In addition, miR-7 downregulated glycolysis of prostate cancer cells by inhibiting several key pathways including HIF-1α, and subsequently remodeled acidic tumour microenvironment, PanKLa level and T cell infiltration. In summary, our findings highlighted a promising target for development of miRNA-based therapeutics for prostate cancer patients regardless of p53 status.

Thus, we demonstrated that exosomes loaded with high levels of miR-7-5p emitted from less aggressive breast cancers can participate in the atypical WNT pathway by targeting the RYK gene and thus inhibit breast cancer metastasis.

Finally, the knockdown of miR-7-5p or overexpression of TLR4 could significantly reverse the effect of the knockdown of Otc4A on HT29 cells. The transcription factor Otc4A can regulate the level of TLR4 by inhibiting the expression of miR-7-5p and then promote the proliferation and invasion of CRC cell HT29 as well as enhance cell stemness.

BAI repressing progression of gastric cancer mediating miR-7/FAK/AKT signaling pathway.

Besides, both low levels of miR-7-5p and positive expression of MNK1 act as independent poor prognostic biomarkers for NSCLC. Therefore, restoring miR-7-5p carried by exosome may be a promising novel combined therapeutic strategy with Everolimus for NSCLC.

Exo-miR-7-5p derived from BMSCs negatively regulates OSBPL11 by suppressing the phosphorylation of the PI3K/AKT/mTOR signaling pathway, thereby inhibiting AML proliferation and promoting apoptosis. The data will inform the development of AML therapies based on BMSC-derived exosomes.

Our study not only delineates how acidification directly affects tumorigenesis, but also suggests miR-7 is a novel reliable biomarker for acidic TME and a novel therapeutic target for non-small cell lung cancer (NSCLC) treatment. Our study opens an avenue to explore the pH-sensitive subcellular components as novel therapeutic targets for cancer treatment.

The evidence showed that miR7 functioning as a tumor suppressor gene in EOC. Our research shows that DATOC-1 can inhibit the development of EOC and is a promising therapeutic target.

Silencing circ-SFMBT2 can suppress the proliferation, clone formation, invasion ability and induce apoptosis of NSCLC cells by regulating the miR-7-5p/ADAM10 axis.

The present findings suggest that miR-7-5p plays a pivotal role in ICC invasion by regulating MyD88. Ampliative insight into the key factors of ICC invasion may result in the development of new treatment options for ICC.

miR-7 downregulation is an early event in SPEM through regulation of TFF2 in human gastric mucosa. YWXY is able to inhibit the cell proliferation and restore the expression of miR-7 by mediating TFF2 in the SPEM mouse model.

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).

Sev suppressed cell growth in glioma by regulating HMMR-AS1. Sev represses glioma cell progression by regulating HMMR-AS1/miR-7/CDK4 axis.

RT-qPCR results of 12 breast cancer surgical specimens and SK-BR-3, MCF-7, and LD cell lines further confirmed the presence of the regulatory axis. In conclusion the findings from the present study demonstrated that the ALDH1A3-miR-7-TGFBR2-Smad3-CD44 regulatory axis was highly efficient in the inhibition of CD44 expression in BCSCs, and that the regulatory expression of ALDH1A3 and miR-7 may provide a strategy in the therapy of breast cancer.

Our results thus support a tumor-suppressor activity of miR-7-5p. The decreased expression of miR-7-5p during PTC tumorigenesis might give the cells a proliferative advantage and delivery of miR-7-5p may represent an innovative approach for therapy.

Finally, it was found that miR-7 declined obviously and VEGF rose distinctly in the carcinoma tissues, and the in vitro assay verified the obvious increase in the expression of miR-7 and the prominently inhibited VEGF protein expression in the ovarian cancer cells with the inhibition of circHIPK3. CircHIPK3 has an obviously increased expression level in the carcinoma tissues of ovarian cancer patients, and the inhibition of circHIPK3 can activate the miR-7-mediated decline in the expression of VEGF to repress the proliferation and promote the apoptosis of ovarian cancer cells.

MiR-7-5p reversed the effect of LINC01272 on viability, multiplication, apoptosis and expression of miR-7-5p, CRLS1 as well as apoptosis-related factors (Bcl-2, Bax and Cleaved caspase-3). LINC01272 suppressed cell multiplication and induced apoptosis via regulating miR-7-5p/CRLS1 axis in LC.

Mechanistically, LNC00115 sponged miR-7 to increase the expression of ERK, which in turn enhanced the cisplatin resistance of ovarian cancer. Our data clarify the mechanism by which the LNC00115/miR-7/ERK axis promotes cisplatin resistance and provide a new clinical strategy for combating cisplatin resistance in ovarian cancer.

Our results help towards finding new treatable molecular targets for these types of medulloblastomas.

We found that VB promoted the expression of miR-7-5p in GBM and transferred miR-7-5p to recipient GBM cells by exosomal delivery. Consequently, miR-7-5p downregulated epidermal growth factor receptor (EGFR) expression to inactivate the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt) signaling pathway, causing inhibition in the proliferation, migration, invasion, and microtubule formation of GBM cells in vitro, as well as decline in tumor formation and metastasis in vivo. Overall, VB can promote the expression of miR-7-5p in GBM cells and transfer miR-7-5p via exosomes, thereby inhibiting the occurrence of GBM.

When miR-7 expression was restored, it was able to sensitize pancreatic cancer cells to gemcitabine. In conclusion, the present study demonstrated that miR-7 regulated cellular senescence and relieved gemcitabine resistance by targeting the PARP1/NF-κB axis in pancreatic cancer cells.

Of note, we detected that miR-7 was significantly higher in serum exosomes from healthy controls than from patients with lung carcinoma, and high miR-7 expression was associated with strong response to lung carcinoma patients receiving gefitinib treatment, as well as a longer survival. Therefore, exosomal miR-7 can act as a potential biomarker and therapeutic target for EGFR T790 M resistance mutations.

Depletion of circ_LDLR could suppress tumor growth in vivo. Depletion of circ_LDLR restrained HCC cell proliferation, metastasis and tumorigenesis through the regulation on miR-7/RNF38 axis, affording a promising therapeutic target for HCC.

Taken together, LINC00240 acted as a sponge for miR-7-5p and induced the overexpression of EGFR. LINC00240 may represent a potential target for the treatment of lung cancer.

The miR-7 can inhibit the proliferation and invasion of human hepatocellular carcinoma cell line SMMC-7721, and its mechanism may be related to upregulation of E-cadherin, β-catenin protein, and downregulation of N-cadherin and Vimentin proteins.