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de Zegher F, Díaz M, Ibáñez L. Adolescent polycystic ovary syndrome without obesity: HOTAIR rs1443512 genotype relates to fat mass and to the redistribution of fat mass on low-dose pioglitazone. J Endocrinol Invest 2024; 47:1037-1043. [PMID: 37805962 DOI: 10.1007/s40618-023-02206-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 09/21/2023] [Indexed: 10/10/2023]
Abstract
INTRODUCTION Adolescent polycystic ovary syndrome (PCOS) is characterized by androgen excess and oligo-amenorrhea, and often results from ectopic lipid storage due to a mismatch between early adipogenesis and later lipogenesis. Endogenous HOX transcript antisense RNA (HOTAIR) and exogenous pioglitazone are enhancers of subcutaneous adipogenesis, particularly in the gluteofemoral region. The A allele of HOTAIR rs1443512 is an equivalent of a natural knock-down and is, thus, a candidate to influence the distribution of fat mass, and also the redistribution of fat mass by pioglitazone in adolescent PCOS-without-obesity. SUBJECTS AND METHODS We performed two post hoc analyses by HOTAIR rs1443512 genotype. In the first, we analyzed the pooled pre-treatment data (auxology; endocrinology; body composition by dual X-ray absorptiometry; abdominal fat distribution by magnetic resonance imaging) of 65 adolescent girls with PCOS-without-obesity in three reported studies (ISRCTN45546616; ISRCTN29234515; ISRCTN11062950). In the second, we analyzed the results of 24 adolescent girls with PCOS-without-obesity, who received pioglitazone (7.5 mg/d for 1 year) as part of a randomized combination treatment (with spironolactone and metformin) in two reported studies (ISRCTN29234515; ISRCTN11062950). All data had been obtained in a blinded-to-genotype way. RESULTS The pre-treatment data disclosed that the girls-with-A-allele of HOTAIR rs1443512 had developed PCOS with a lower BMI (22.3 ± 2.3 kg/m2; N = 17) than the other girls (24.1 ± 2.7 kg/m2; N = 48), this difference being essentially attributable to a lower fat mass (mean difference 4.6 kg; P < 0.01). On low-dose pioglitazone, girls-with-A-allele (N = 12) raised their fat mass while the other girls (N = 12) did not (total fat mass + 2.2 ± 1.8 kg vs - 0.9 ± 2.2 kg; P < 0.001), particularly in the gynoid area (gluteofemoral fat + 0.6 ± 0.4 kg vs - 0.1 ± 0.5 kg; hip circumference + 2.3 ± 1.9 cm vs - 1.7 ± 3.1 cm; both P < 0.001). CONCLUSION The present findings suggest that the HOTAIR rs1443512 genotype influences not only the distribution of fat mass in adolescent girls with PCOS-without-obesity but also the redistribution of fat mass during prolonged treatment with low-dose pioglitazone. TRIAL REGISTRATION ISRCTN45546616 ( https://doi.org/10.1186/ISRCTN45546616 ). ISRCTN29234515 ( https://doi.org/10.1186/ISRCTN29234515 ). ISRCTN11062950 ( https://doi.org/10.1186/ISRCTN11062950 ).
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Affiliation(s)
- F de Zegher
- Leuven Research and Development, University of Leuven, 3000, Leuven, Belgium
| | - M Díaz
- Research Institute Sant Joan de Déu, University of Barcelona, Esplugues, 08950, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Health Institute Carlos III, 28029, Madrid, Spain
| | - L Ibáñez
- Research Institute Sant Joan de Déu, University of Barcelona, Esplugues, 08950, Barcelona, Spain.
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Health Institute Carlos III, 28029, Madrid, Spain.
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Liu Q, Yang GH, Wang NZ, Wang XC, Zhang ZL, Qiao LJ, Cui WJ. Dexmedetomidine suppressed the biological behavior of RAW264.7 cells treated with LPS by down-regulating HOTAIR. Heliyon 2024; 10:e27690. [PMID: 38533037 PMCID: PMC10963246 DOI: 10.1016/j.heliyon.2024.e27690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 03/05/2024] [Accepted: 03/05/2024] [Indexed: 03/28/2024] Open
Abstract
Background Previous studies have revealed dexmedetomidine have potential protective effects on vital organs by inhibiting the release of inflammatory cytokines. To investigate the effects of dexmedetomidine on sepsis, especially in the initial inflammatory stage of sepsis. RAW264.7 cells were used as the cell model in this study to elucidate the underlying mechanisms. Methods In this study, we conducted several assays to investigate the mechanisms of dexmedetomidine and HOTAIR in sepsis. Cell viability was assessed using the CCK-8 kit, while inflammation responses were measured using ELISA for IL-1β, IL-6, and TNF-α. Additionally, we employed qPCR, MeRIP, and RIP to further explore the underlying mechanisms. Results Our findings indicate that dexmedetomidine treatment enhanced cell viability and reduced the production of inflammatory cytokines in LPS-treated RAW264.7 cells. Furthermore, we observed that the expression of HOTAIR was increased in LPS-treated RAW264.7 cells, which was then decreased upon dexmedetomidine pre-treatment. Further investigation demonstrated that HOTAIR could counteract the beneficial effects of dexmedetomidine on cell viability and cytokine production. Interestingly, we discovered that YTHDF1 targeted HOTAIR and was upregulated in LPS-treated RAW264.7 cells, but reduced in dexmedetomidine treatment. We also found that YTHDF1 increased HOTAIR and HOTAIR m6A levels. Conclusions Collectively, our results suggest that dexmedetomidine downregulates HOTAIR and YTHDF1 expression, which in turn inhibits the biological behavior of LPS-treated RAW264.7 cells. This finding has potential implications for the prevention and treatment of sepsis-induced kidney injury.
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Affiliation(s)
- Qin Liu
- Intensive Care Unit, Shengli Oilfield Central Hospital, Dongying, Shandong, 257000, China
| | - Guang-Hu Yang
- Intensive Care Unit, Shengli Oilfield Central Hospital, Dongying, Shandong, 257000, China
| | - Nai-Zhi Wang
- Department of Respiratory and Critical Care Medicine, Jinan Central Hospital, Jinan, Shandong, 250013, China
| | - Xin-Cheng Wang
- Intensive Care Unit, Shengli Oilfield Central Hospital, Dongying, Shandong, 257000, China
| | - Zhao-Long Zhang
- Intensive Care Unit, Shengli Oilfield Central Hospital, Dongying, Shandong, 257000, China
| | - Lu-Jun Qiao
- Intensive Care Unit, Shengli Oilfield Central Hospital, Dongying, Shandong, 257000, China
| | - Wen-Juan Cui
- Intensive Care Unit, Shengli Oilfield Central Hospital, Dongying, Shandong, 257000, China
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Yang E, Hong B, Wang Y, Wang Q, Zhao J, Cui X, Wu Y, Yang S, Su D, Liu X, Kang C. EPIC-0628 abrogates HOTAIR/EZH2 interaction and enhances the temozolomide efficacy via promoting ATF3 expression and inhibiting DNA damage repair in glioblastoma. Cancer Lett 2024; 588:216812. [PMID: 38490327 DOI: 10.1016/j.canlet.2024.216812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 03/07/2024] [Accepted: 03/08/2024] [Indexed: 03/17/2024]
Abstract
The efficacy of temozolomide (TMZ) treatment in glioblastoma (GBM) is influenced by various mechanisms, mainly including the level of O6-methylguanine-DNA methyltransferase (MGMT) and the activity of DNA damage repair (DDR) pathways. In our previous study, we had proved that long non-coding RNA HOTAIR regulated the GBM progression and mediated DDR by interacting with EZH2, the catalytic subunit of PRC2. In this study, we developed a small-molecule inhibitor called EPIC-0628 that selectively disrupted the HOTAIR-EZH2 interaction and promoted ATF3 expression. The upregulation of ATF3 inhibited the recruitment of p300, p-p65, p-Stat3 and SP1 to the MGMT promoter. Hence, EPIC-0628 silenced MGMT expression. Besides, EPIC-0628 induced cell cycle arrest by increasing the expression of CDKN1A and impaired DNA double-strand break repair via suppressing the ATF3-p38-E2F1 pathway. Lastly, EPIC-0628 enhanced TMZ efficacy in GBM in vitro and vivo. Hence, this study provided evidence for the combination of epigenetic drugs EPIC-0628 with TMZ for GBM treatment through the above mechanisms.
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Affiliation(s)
- Eryan Yang
- Lab of Neuro- Oncology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China; Department of Gynecology and Obstetrics, Tianjin Medical University General Hospital, Tianjin, 300052, China; Tianjin Key Laboratory of Female Reproductive Health and Eugenics, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Biao Hong
- Lab of Neuro- Oncology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Yunfei Wang
- Lab of Neuro- Oncology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Qixue Wang
- Lab of Neuro- Oncology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Jixing Zhao
- Lab of Neuro- Oncology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Xiaoteng Cui
- Lab of Neuro- Oncology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Ye Wu
- Lab of Neuro- Oncology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Shixue Yang
- Lab of Neuro- Oncology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Dongyuan Su
- Lab of Neuro- Oncology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Xiaomin Liu
- Neuro-Oncology Center, Tianjin Huanhu Hospital, Nankai University, Tianjin, 300350, China
| | - Chunsheng Kang
- Lab of Neuro- Oncology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China.
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Haybar H, Hadi H, Purrahman D, Mahmoudian-Sani MR, Saki N. Emerging roles of HOTAIR lncRNA in the pathogenesis and prognosis of cardiovascular diseases. Biomark Med 2024; 18:203-219. [PMID: 38411079 DOI: 10.2217/bmm-2023-0368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024] Open
Abstract
Highlights HOTAIR, a long noncoding RNA, plays a role in the regulation of proteins involved in the pathogenesis of cardiovascular disease. Furthermore, it has been identified as a biomarker of this type of disease. Several factors and cells contribute to atherosclerosis, a progressive disease. However, the prognosis of HOTAIR in this disease varies depending on the path in which it plays a role. For this condition, there is no single prognosis to consider.
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Affiliation(s)
- Habib Haybar
- Atherosclerosis Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Hakimeh Hadi
- Thalassemia & Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Daryush Purrahman
- Thalassemia & Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mohammad Reza Mahmoudian-Sani
- Thalassemia & Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Najmaldin Saki
- Thalassemia & Hemoglobinopathy Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Espinosa-Bautista F, Salazar-Sánchez MI, Brianza-Padilla M, León-Ávila G, Hernández-Díazcouder A, Domínguez-López ML, Amezcua-Guerra LM, Pineda C. Dysregulation of long non-coding RNAs in Takayasu arteritis: A proof-of-concept study. Clin Rheumatol 2024; 43:1253-1259. [PMID: 38285374 DOI: 10.1007/s10067-024-06880-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 12/22/2023] [Accepted: 01/18/2024] [Indexed: 01/30/2024]
Abstract
Takayasu arteritis (TAK) is a rare systemic vasculitis primarily affecting the aorta and its major branches. Early diagnosis is critical to prevent severe vascular complications, yet current biomarkers are insufficient. This proof-of-concept study explores the potential of long non-coding RNAs (lncRNAs) in TAK, an area largely unexplored. In this cross-sectional study, 53 TAK patients, 53 healthy controls, and 10 rheumatoid arthritis (RA) patients were enrolled. Clinical evaluations, disease activity assessments, and lncRNA expression levels were analyzed. TAK patients exhibited significant dysregulation in several lncRNAs, including THRIL (19.4, 11.1-48.8 vs. 62.5, 48.6-91.4 arbitrary units [a.u.]; p < 0.0001), HIF1A-AS1 (4.5, 1.8-16.6 vs. 26.5, 19.8-33.7 a.u.; p < 0.0001), MALAT-1 (26.9, 13.8-52.5 vs. 92.1, 58.5-92.1 a.u.; p < 0.0001), and HOTAIR (8.0, 2.5-24.5 vs. 36.0, 30.0-43.8 a.u.; p < 0.0001), compared to healthy controls. Notably, HOTAIR (area under the ROC curve [AUC] = 0.825), HIF1A-AS1 (AUC = 0.820), and THRIL (AUC = 0.781) demonstrated high diagnostic potential with superior specificity (approximately 95%). While lncRNAs showed diagnostic promise, no significant correlations with TAK activity were observed. Comparative analysis with RA patients revealed distinct lncRNA expression patterns. This study unveils significant dysregulation of lncRNAs THRIL, HIF1A-AS1, and HOTAIR in TAK patients, underscoring their potential as biomarkers and opening avenues for further research into the mechanistic roles of these lncRNAs in TAK pathogenesis.
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Affiliation(s)
- Fernanda Espinosa-Bautista
- Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional, Mexico City, Mexico
- Immunology Department, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano 1, Sección XVI, 14080, Tlalpan, Mexico City, Mexico
| | - Ma Isabel Salazar-Sánchez
- Laboratorio Nacional de Vacunología y Virus Tropicales, Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional, Mexico City, Mexico
| | - Malinalli Brianza-Padilla
- Immunology Department, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano 1, Sección XVI, 14080, Tlalpan, Mexico City, Mexico
| | - Gloria León-Ávila
- Departamento de Zoología, Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional, Mexico City, Mexico
| | - Adrián Hernández-Díazcouder
- Laboratorio de Investigación de Obesidad y Asma, Hospital Infantil de México Federico Gómez, Mexico City, Mexico
| | - María Lilia Domínguez-López
- Laboratorio de Inmunoquímica I, Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional, Mexico City, Mexico
| | - Luis M Amezcua-Guerra
- Immunology Department, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano 1, Sección XVI, 14080, Tlalpan, Mexico City, Mexico.
- Health Care Department, Universidad Autónoma Metropolitana-Xochimilco, Mexico City, Mexico.
| | - Carlos Pineda
- Directorate, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City, Mexico
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Khalifa FN, Hussein RF, Mekawy DM, Elwi HM, Alsaeed SA, Elnawawy Y, Shaheen SH. Potential role of the lncRNA " HOTAIR"/miRNA "206"/BDNF network in the alteration in expression of synaptic plasticity gene arc and BDNF level in sera of patients with heroin use disorder through the PI3K/AKT/mTOR pathway compared to the controls. Mol Biol Rep 2024; 51:293. [PMID: 38334898 PMCID: PMC10858136 DOI: 10.1007/s11033-024-09265-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 01/17/2024] [Indexed: 02/10/2024]
Abstract
INTRODUCTION Heroin use disorder (HUD) is a seriously increasing health issue, accounting for most deaths among drug abusers. Studying non-coding ribonucleic acid gene expression among drug abusers is a promising approach, as it may be used in diagnosis and therapeutics. PARTICIPANTS AND METHODS A total of 49 male heroin-dependent patients and 49 male control participants were recruited from Kasr Al Ainy Psychiatry and Addiction outpatient clinics, Faculty of Medicine, Cairo University. Sera were gathered. qRT-PCR was utilized for the detection of gene expression of non-coding RNAs such as "HOX transcript antisense RNA" (HOTAIR), micro-RNA (miRNA-206), phosphatidylinositol 3-kinase (PI3K), protein kinase B (AKT), mechanistic target of rapamycin (mTOR), and Activity Regulated Cytoskeleton Associated Protein (Arc). Sera Brain-Derived Neurotrophic Factor (BDNF) levels were assessed using ELISA. Using a western blot made it possible to determine the protein expression of PI3K, AKT, and mTOR. RESULTS The study demonstrated that gene expressions of HOTAIR, AKT, PI3K, and Arc were considerably lowered between cases and controls, while gene expressions of miR-206 and mTOR1 were significantly raised. PI3K and AKT protein expressions were downregulated, while mTOR expressions were upregulated. BDNF levels were significantly decreased in some cases. CONCLUSION The results of this study suggest that decreased HOTAIR in HUD relieves miR-206 inhibition, which thus increases and affects downstream PI3K/AKT/mTOR, ARC, and BDNF expression. This may be shared in addictive and relapsing behaviors.
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Affiliation(s)
- Fatma Nada Khalifa
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Cairo University, Kasr Alainy Street, Cairo, 11562, Egypt
| | - Riham F Hussein
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Cairo University, Kasr Alainy Street, Cairo, 11562, Egypt
| | - Dina M Mekawy
- Department of Biochemistry, Faculty of Medicine, Cairo University, Kasr Alainy Street, Cairo, 11562, Egypt
| | - Heba M Elwi
- Department of Biochemistry, Faculty of Medicine, Cairo University, Kasr Alainy Street, Cairo, 11562, Egypt
| | - Shimaa Ahmed Alsaeed
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Cairo University, Kasr Alainy Street, Cairo, 11562, Egypt.
| | - Yassmin Elnawawy
- Department of Psychiatry, Faculty of Medicine, Cairo University, Kasr Alainy Street, Cairo, 11562, Egypt
| | - Somaya H Shaheen
- Department of Psychiatry, Faculty of Medicine, Cairo University, Kasr Alainy Street, Cairo, 11562, Egypt
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Karajovic J, Kovacevic B, Uzelac B, Stefik D, Jovanovic B, Ristic P, Cerovic S, Supic G. Association of HOTAIR, MIR155HG, TERC, miR-155, -196a2, and -146a Genes Polymorphisms with Papillary Thyroid Cancer Susceptibility and Prognosis. Cancers (Basel) 2024; 16:485. [PMID: 38339237 PMCID: PMC10854783 DOI: 10.3390/cancers16030485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/01/2023] [Accepted: 11/05/2023] [Indexed: 02/12/2024] Open
Abstract
Polymorphisms in long non-coding RNA and microRNA genes may play a significant role in the susceptibility and progression of papillary thyroid carcinoma (PTC). The current study investigates the polymorphisms HOTAIR rs920778, MIR155HG rs1893650, TERC rs10936599, miR-155 rs767649, miR-196a2 rs11614913 and miR-146a rs2910164 in 102 PTC patients and 106 age- and sex-matched controls of the Caucasian Serbian population, using real-time PCR. We observed differences in genotype distributions of the HOTAIR rs920778 (p = 0.016) and MIR155HG rs1893650 (p = 0.0002) polymorphisms between PTC patients and controls. HOTAIR rs920778 was associated with increased PTC susceptibility (adjusted OR = 1.497, p = 0.021), with the TT variant genotype increasing the risk compared to the CC genotype (OR = 2.466, p = 0.012) and C allele carriers (CC + CT) (OR = 1.585, p = 0.006). The HOTAIR rs920778 TT genotype was associated with lymph node metastasis (p = 0.022), tumor recurrence (p = 0.016), and progression-free survival (p = 0.010) compared to C allele carriers. Multivariate Cox regression revealed that ATA risk (HR = 14.210, p = 0.000004) and HOTAIR rs920778 (HR = 2.811, p = 0.010) emerged as independent prognostic factors in PTC. A novel polymorphism, MIR155HG rs1893650, was negatively correlated with susceptibility to PTC, with TC heterozygotes exerting a protective effect (OR = 0.268, p = 0.0001). These results suggest that the polymorphisms HOTAIR rs920778 and MIR155HG rs1893650 could be potential prognostic and risk biomarkers in papillary thyroid carcinomas.
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Affiliation(s)
- Jelena Karajovic
- Clinic for Endocrinology, Military Medical Academy, 11000 Belgrade, Serbia; (J.K.); (P.R.)
| | - Bozidar Kovacevic
- Institute for Pathology and Forensic Medicine, Military Medical Academy, 11000 Belgrade, Serbia; (B.K.); (B.J.); (S.C.)
- Medical Faculty of Military Medical Academy, University of Defense, 11000 Belgrade, Serbia
| | - Bojana Uzelac
- Institute for Medical Research, Military Medical Academy, 11000 Belgrade, Serbia; (B.U.); (D.S.)
| | - Debora Stefik
- Institute for Medical Research, Military Medical Academy, 11000 Belgrade, Serbia; (B.U.); (D.S.)
| | - Bojana Jovanovic
- Institute for Pathology and Forensic Medicine, Military Medical Academy, 11000 Belgrade, Serbia; (B.K.); (B.J.); (S.C.)
| | - Petar Ristic
- Clinic for Endocrinology, Military Medical Academy, 11000 Belgrade, Serbia; (J.K.); (P.R.)
- Medical Faculty of Military Medical Academy, University of Defense, 11000 Belgrade, Serbia
| | - Snezana Cerovic
- Institute for Pathology and Forensic Medicine, Military Medical Academy, 11000 Belgrade, Serbia; (B.K.); (B.J.); (S.C.)
- Medical Faculty of Military Medical Academy, University of Defense, 11000 Belgrade, Serbia
| | - Gordana Supic
- Medical Faculty of Military Medical Academy, University of Defense, 11000 Belgrade, Serbia
- Institute for Medical Research, Military Medical Academy, 11000 Belgrade, Serbia; (B.U.); (D.S.)
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Martins EP, Vieira de Castro J, Fontes R, Monteiro-Reis S, Henrique R, Jerónimo C, Costa BM. Relevance of HOTAIR rs920778 and rs12826786 Genetic Variants in Bladder Cancer Risk and Survival. Cancers (Basel) 2024; 16:434. [PMID: 38275875 PMCID: PMC10814037 DOI: 10.3390/cancers16020434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/12/2024] [Accepted: 01/16/2024] [Indexed: 01/27/2024] Open
Abstract
The long non-coding RNA HOX transcript antisense intergenic RNA (HOTAIR) is associated with oncogenic features in bladder cancer and is predictive of poor clinical outcomes in patients diagnosed with this disease. In this study, we evaluated the impact of the HOTAIR single nucleotide polymorphisms rs920778 and rs12826786 on bladder cancer risk and survival. This case-control study included 106 bladder cancer patients and 199 cancer-free controls. Polymorphisms were evaluated through PCR-restriction fragment length polymorphism. The odds ratio and 95% confidence intervals were tested using univariable and multivariable logistic regressions. The effects on patient survival were evaluated using the log-rank test and Cox regression models. Our data showed that the HOTAIR rs920778 and rs12826786 genetic variants are not associated with the risk of developing bladder cancer. Nevertheless, survival analyses suggested that the HOTAIR rs920778 TT genotype and rs12826786 CC genotype are associated with increased survival in male bladder cancer patients and in patients, both male and female, who have primary tumors with a pathological stage of pT2. Together, these results suggest that, despite not being associated with bladder cancer risk, HOTAIR rs920778 and rs12826786 polymorphisms might represent new prognostic factors in this type of cancer. This is particularly important as these polymorphisms might be easily evaluated in bladder cancer patients in a minimally invasive manner to better predict their clinical outcomes.
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Affiliation(s)
- Eduarda P. Martins
- Life and Health Sciences Research Institute (ICVS), School of Medicine, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (E.P.M.); (J.V.d.C.); (R.F.)
- ICVS/3B’s-PT Government Associate Laboratory, 4710-057/4805-017 Braga/Guimarães, Portugal
| | - Joana Vieira de Castro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (E.P.M.); (J.V.d.C.); (R.F.)
- ICVS/3B’s-PT Government Associate Laboratory, 4710-057/4805-017 Braga/Guimarães, Portugal
| | - Rita Fontes
- Life and Health Sciences Research Institute (ICVS), School of Medicine, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (E.P.M.); (J.V.d.C.); (R.F.)
- ICVS/3B’s-PT Government Associate Laboratory, 4710-057/4805-017 Braga/Guimarães, Portugal
| | - Sara Monteiro-Reis
- Cancer Biology & Epigenetics Group, Research Center of IPO Porto (CI-IPOP), CI-IPOP @RISE (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto), Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC), 4200-072 Porto, Portugal; (S.M.-R.); (R.H.); (C.J.)
- Institute of Science and Innovation in Mechanical and Industrial Engineering (INEGI), University of Porto, 4200-465 Porto, Portugal
| | - Rui Henrique
- Cancer Biology & Epigenetics Group, Research Center of IPO Porto (CI-IPOP), CI-IPOP @RISE (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto), Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC), 4200-072 Porto, Portugal; (S.M.-R.); (R.H.); (C.J.)
- Department of Pathology & Molecular Immunology, ICBAS-School of Medicine & Biomedical Sciences, University of Porto, 4050-313 Porto, Portugal
- Department of Pathology, Portuguese Oncology Institute of Porto (IPO Porto), 4200-072 Porto, Portugal
| | - Carmen Jerónimo
- Cancer Biology & Epigenetics Group, Research Center of IPO Porto (CI-IPOP), CI-IPOP @RISE (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto), Porto Comprehensive Cancer Center Raquel Seruca (Porto.CCC), 4200-072 Porto, Portugal; (S.M.-R.); (R.H.); (C.J.)
- Department of Pathology & Molecular Immunology, ICBAS-School of Medicine & Biomedical Sciences, University of Porto, 4050-313 Porto, Portugal
| | - Bruno M. Costa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal; (E.P.M.); (J.V.d.C.); (R.F.)
- ICVS/3B’s-PT Government Associate Laboratory, 4710-057/4805-017 Braga/Guimarães, Portugal
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Hakami MA, Hazazi A, Abdulaziz O, Almasoudi HH, Alhazmi AYM, Alkhalil SS, Alharthi NS, Alhuthali HM, Almalki WH, Gupta G, Khan FR. HOTAIR: A key regulator of the Wnt/β-catenin signaling cascade in cancer progression and treatment. Pathol Res Pract 2024; 253:154957. [PMID: 38000201 DOI: 10.1016/j.prp.2023.154957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/12/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023]
Abstract
The long non-coding RNA (lncRNA) HOTAIR occupies a central position in the complex domain of cancer biology, particularly concerning its intricate interplay with the Wnt/β-catenin signaling pathway. This comprehensive review explores the multifaceted interactions between HOTAIR and the Wnt/β-catenin cascade, elucidating their profound function in cancer growth, progression, and therapeutic strategies. The study commences by underscoring the pivotal role of the Wnt/β-catenin cascade in governing essential cellular activities, emphasizing its dysregulation as a linchpin in cancer initiation and advancement. It introduces HOTAIR as a crucial regulatory entity, influencing gene expression in both healthy and diseased. The core of this review plunges into the intricacies of HOTAIR's engagement with Wnt/β-catenin signaling. It unravels how HOTAIR, through epigenetic modifications and transcriptional control, exerts its influence over key pathway constituents, including β-catenin, Wnt ligands, and target genes. This influence drives unchecked cancer cell growth, invasion, and metastasis. Furthermore, the review underscores the clinical significance of the HOTAIR-Wnt/β-catenin interplay, elucidating its associations with diverse cancer subtypes, patient prognoses, and prospects as a therapy. It provides insights into ongoing research endeavors to develop HOTAIR-targeted treatments and initiatives to facilitate aberrant Wnt/β-catenin activation. Concluding on a forward-looking note, the article accentuates the broader implications of HOTAIR's involvement in cancer biology, including its contributions to therapy resistance and metastatic dissemination. It underscores the importance of delving deeper into these intricate molecular relationships to pave the way for groundbreaking cancer treatment.
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Affiliation(s)
- Mohammed Ageeli Hakami
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Al-Quwayiyah, Shaqra University, Riyadh, Saudi Arabia
| | - Ali Hazazi
- Department of Pathology and Laboratory Medicine, Security Forces Hospital Program, Riyadh, Saudi Arabia
| | - Osama Abdulaziz
- Clinical Laboratory Sciences Department, College of Applied Medical Sciences, Taif University, Taif Province, Saudi Arabia
| | - Hassan Hussain Almasoudi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Najran University, Najran 61441, Saudi Arabia
| | | | - Samia S Alkhalil
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Al-Quwayiyah, Shaqra University, Riyadh, Saudi Arabia
| | - Nahed S Alharthi
- Department of Medical Laboratory Sciences. College of Applied Medical Sciences in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudia Arabia
| | - Hayaa M Alhuthali
- Clinical Laboratory Sciences Department, College of Applied Medical Sciences, Taif University, Taif Province, Saudi Arabia
| | - Waleed Hassan Almalki
- Department of Pharmacology, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Gaurav Gupta
- Centre for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, India; School of Pharmacy, Graphic Era Hill University, Dehradun 248007, India; School of Pharmacy, Suresh Gyan Vihar University, Jagatpura, Mahal Road, Jaipur 302017, India
| | - Farhan R Khan
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Al-Quwayiyah, Shaqra University, Riyadh, Saudi Arabia.
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Naiini MR, Saeidi K, Azarian A, Bahramzadeh K, Nazari-Robati M. Expression analysis of vitamin D receptor-associated long noncoding RNAs in patients with relapsing-remitting multiple sclerosis. BRATISL MED J 2024; 125:107-112. [PMID: 38219064 DOI: 10.4149/bll_2024_018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2024]
Abstract
BACKGROUND Vitamin D is a neuroactive steroid that carries out its biological functions through the vitamin D receptor (VDR). The VDR gene interacts with certain long noncoding RNAs (lncRNAs). The present study is aimed at evaluating the expression levels of the VDR gene as well as those of HOTAIR, H19, MALAT1, and P21 lncRNAs in patients with relapsing-remitting multiple sclerosis (RRMS). METHODS This research was conducted on 38 RRMS patients and 38 healthy individuals. The expression levels of VDR and selected lncRNAs in peripheral blood as well as those of vitamin D in the plasma were measured. RESULTS The results revealed a significant increase in the expression of lncRNA H19 in the RRMS group compared to the control group. The analysis of the receiver operating characteristic (ROC) curve for H19 gene expression demonstrated a diagnostic value of 0.699 (95% CI: 0.575-0.823). Positive correlations were detected between VDR and lncRNA HOTAIR (r = 0.446, p = 0.008), H19 (r = 0.351, p = 0.042), MALAT1 (r = 0.464, p = 0.006), and P21 (r = 0.512, p = 0.002) in MS patients. CONCLUSION The findings of this study suggest that lncRNA H19 could serve as a potential biomarker for MS diagnosis (Tab. 4, Fig. 1, Ref. 34).
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He L, Lu F, Zhang F, Fan S, Xu J. Mechanism of lncRNA HOTAIR in attenuating cardiomyocyte pyroptosis in mice with heart failure via the miR-17-5p/RORA axis. Exp Cell Res 2023; 433:113806. [PMID: 37844792 DOI: 10.1016/j.yexcr.2023.113806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/28/2023] [Accepted: 10/08/2023] [Indexed: 10/18/2023]
Abstract
Heart failure (HF) is a complex clinical syndrome associated with significant morbidity and mortality. Dysregulation of long non-coding RNA (lncRNA) has been implicated in the pathogenesis of HF. The present study aims to investigate the role of lncRNA HOX transcript antisense RNA (HOTAIR) in cardiomyocyte pyroptosis in a murine HF model. A murine HF model was established through transverse aortic contraction surgery, and an in vitro HF cell model was developed by treating HL-1 cells with H2O2. HOTAIR was overexpressed in TAC mice and HL-1 cells via pcDNA3.1-HOTAIR transfection. Cardiac function was assessed in TAC mice, and myocardial changes were evaluated using HE staining. The expression of NLRP3 was examined by immunohistochemistry. Myocardial injury markers and pyroptosis-related inflammatory cytokines were quantified using ELISA. Protein levels of NLRP3, cleaved-caspase-1, and GSDMD-N were analyzed by Western blot. Dual-luciferase assays and RNA immunoprecipitation were employed to confirm the binding interactions between HOTAIR and miR-17-5p, miR-17-5p and RORA. Functional rescue experiments were conducted by overexpressing miR-17-5p or silencing RORA in HL-1 cells. HOTAIR exhibited reduced expression in TAC mice and H2O2-induced cardiomyocytes. Overexpression of HOTAIR ameliorated cardiac dysfunction, reduced myocardial pathological injury, enhanced cardiomyocyte viability, and decreased myocardial injury and pyroptosis. HOTAIR interacted with miR-17-5p to repress RORA transcription. Overexpression of miR-17-5p or silencing of RORA abolished the inhibitory effect of HOTAIR overexpression on cardiomyocyte pyroptosis. In conclusion, HOTAIR competitively bound to miR-17-5p, relieving its inhibition of RORA transcription and leading to increased RORA expression and suppressed cardiomyocyte pyroptosis in HF models.
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Affiliation(s)
- Le He
- Tianjin Chest Hospital, School of Medicine, Tianjin University, Tianjin, 300222, China
| | - Fengmin Lu
- Tianjin Chest Hospital, School of Medicine, Tianjin University, Tianjin, 300222, China
| | - Fan Zhang
- Tianjin Chest Hospital, School of Medicine, Tianjin University, Tianjin, 300222, China
| | - Shaobo Fan
- Tianjin Chest Hospital, School of Medicine, Tianjin University, Tianjin, 300222, China
| | - Jing Xu
- Tianjin Chest Hospital, School of Medicine, Tianjin University, Tianjin, 300222, China.
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Wang LJ, Li R, Zhang TP, Li HM. Association of lncRNA THRIL, HOTAIR genes variations and expression levels with pulmonary tuberculosis. BMC Med Genomics 2023; 16:326. [PMID: 38087305 PMCID: PMC10714510 DOI: 10.1186/s12920-023-01770-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 12/09/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Long non-coding RNA (lncRNA) has been implicated in the pathogenesis of pulmonary tuberculosis (PTB). This study aims to investigate the involvement of lncRNA THRIL and HOTAIR gene single nucleotide polymorphisms (SNPs) and their expression levels in PTB susceptibility. METHODS A total of 456 PTB patients and 464 healthy controls participated in our study. we genotyped six SNPs of THRIL and HOTAIR genes using an improved multiple ligase detection reaction (iMLDR). Additionally, real-time reverse-transcriptase polymerase chain reaction was employed to detect the expression levels of THRIL and HOTAIR in peripheral blood mononuclear cells (PBMC) from 78 PTB patients and 84 healthy controls. RESULTS No significant differences in allele and genotype frequencies were observed for THRIL rs1055472, rs11058000, and HOTAIR rs12427129, rs1899663, rs4759314, and rs7958904 polymorphisms between PTB patients and healthy controls (all P > 0.05). Moreover, genotype frequencies of all SNPs did not show any association with PTB susceptibility in the dominant-recessive model. However, the frequencies of rs7958904 CC genotype and C allele in the HOTAIR gene were significantly correlated with leukopenia in PTB patients. Furthermore, the expression levels of the HOTAIR gene were significantly elevated in PTB patients compared to controls. CONCLUSIONS Our study indicates that THRIL and HOTAIR gene SNPs might not contribute to PTB susceptibility, while the level of HOTAIR was increased in PTB patients.
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Affiliation(s)
- Li-Jun Wang
- Department of Infectious Diseases, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Rui Li
- Department of Nosocomial Infection Management, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Tian-Ping Zhang
- Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, Anhui, China.
| | - Hong-Miao Li
- Department of Infectious Diseases, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China.
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Shi L, Zhang D, Han H, Zhang L, Li S, Yang F, He C. HOTAIR knockdown impairs metastasis of cervical cancer cells by down-regulating metastasis-related genes. J OBSTET GYNAECOL 2023; 43:2181060. [PMID: 36972141 DOI: 10.1080/01443615.2023.2181060] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
This study investigated the role of LncRNA HOTAIR knockdown in the biological impacts on cervical cancer cells. The HOTAIR gene in two human cervical cancer cell lines was silenced with small interfering (si) RNA siHOTAIR. Proliferation, apoptosis, migration and invasion of cells were assessed following the knockdown. The expressions of Notch1, EpCAM, E-cadherin, vimentin and STAT3 were assessed using qRT-PCR and Western blotting analysis. Compared with controls, HOTAIR levels were reduced significantly, the OD values of cells were significantly decreased in proliferation assays, cell apoptosis was significantly increased, cell migration and invasion were significantly reduced after HOTAIR knockdown. Molecular analysis showed that Notch1, EpCAM, vimentin and STAT3 expressions were decreased significantly, while the expression of E-cadherin was significantly increased after HOTAIR knockdown. Rescue experiments further confirmed that Notch1 and STAT3 were involved in siHOTAIR-mediated reduction of migration and invasion of cervical cancer cells.IMPACT STATEMENTWhat is already known on this subject? Long non-coding RNAs including HOTAIR, is implicated in occurrence and development of cancer and have been explored to develop new therapeutic options for cancer.What do the results of this study add? HOTAIR silencing significantly reduces the viability and migration ability of cells and induces cell apoptosis, adding experimental data supporting the potential use of HOTAIR specific-siRNA as a therapeutic avenue for the cancer.What are the implications of these findings for clinical practice and/or further research? The finding from this study would help develop clinically applicable therapeutic avenues for the cancer and identify new treatment targets in the relevant pathways leading to new drugs or treatments.
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Affiliation(s)
- Lei Shi
- Department of Obstetrics and Gynecology, Daqing Oilfield General Hospital, Daqing, P.R. China
| | - Dehui Zhang
- Department of Oncology, Daqing Oilfield General Hospital and Huiren Cancer Hospital, Daqing, P.R. China
| | - Huijuan Han
- Department of Obstetrics and Gynecology, the 962 Hospital, Joint Logistics Support of the Chinese People's Liberation Army, Harbin, P.R. China
| | - Liangyu Zhang
- Department of Obstetrics and Gynecology, Daqing Oilfield General Hospital, Daqing, P.R. China
| | - Sirui Li
- Department of Obstetrics and Gynecology, Daqing Oilfield General Hospital, Daqing, P.R. China
| | - Fang Yang
- Department of Obstetrics and Gynecology, Daqing Oilfield General Hospital, Daqing, P.R. China
| | - Caijun He
- Department of Obstetrics and Gynecology, the 962 Hospital, Joint Logistics Support of the Chinese People's Liberation Army, Harbin, P.R. China
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Asl AJ, Sharifi M, Dashti A, Dashti GR. Relationship between long non-coding RNA MALAT1 and HOTAIR expression with sperm parameters, DNA and malondialdehyde levels in male infertility. Tissue Cell 2023; 85:102248. [PMID: 37879289 DOI: 10.1016/j.tice.2023.102248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 10/11/2023] [Accepted: 10/13/2023] [Indexed: 10/27/2023]
Abstract
BACKGROUND Sperm quality is a complex index used to evaluate the fertility potential of men. The long non-coding RNA (lncRNA) MALAT1 participate in sperm development and HOTAIR have critical roles in the regulation of oxidative stress responses. This study aimed to evaluate the relationship of lncRNA MALAT1 and HOTAIR expression with sperm parameters, DNA fragmentation and malondialdehyde (MDA)levels in sperm fertility. METHODS In this experimental study, semen samples (n = 30 fertile, n = 30 infertile) men were collected and evaluated for sperm parameters by computer-aided sperm analysis(CASA). Sperm DNA integrity quality was assessed by the Acridine orange(AO) test. MDA levels were determined by the Thiobarbituric acid reaction method. The expression of MALAT1 and HOTAIR was detected by RT-PCR. RESULTS We observed a decreased level of MALAT1and HOTAIR expression in the infertile men (p < 0.001). The relative expression level of MALAT1and HOTAIR showed a positive correlation with motility and morphology (p < 0.001). Subsequently, we found the DNA damage and MDA levels was negatively correlated with expression level of genes of sperm (p < 0.001). CONCLUSION In this study the low expression of MALATI and HOTAIR resulted in the high level of MDA, DNA damage, and reduced motility of sperm. This study suggests the therapeutic opportunities in respect to MALATI and HOTAIR expression in the sperm function.
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Affiliation(s)
- Afsaneh-Jaberi Asl
- Department of Anatomical Sciences, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Mohammadreza Sharifi
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Abolfazl Dashti
- School of Veterinary Medicine, Islamic Azad University, Shahrekord, Charhar Mahal Bakhtiyari, Iran.
| | - Gholam Reza Dashti
- Department of Anatomical Sciences, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran; Saint Maryam Fertility and Infertility center, Shahid Beheshti hospital, Isfahan, Iran.
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Chen P, Liu Z, Xiao H, Yang X, Li T, Huang W, Zhou H. Effect of tumor exosome-derived Lnc RNA HOTAIR on the growth and metastasis of gastric cancer. Clin Transl Oncol 2023; 25:3447-3459. [PMID: 37199906 DOI: 10.1007/s12094-023-03208-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 04/27/2023] [Indexed: 05/19/2023]
Abstract
PURPOSE HOX transcribed antisense RNA (HOTAIR) is a long noncoding RNA (LncRNA) that promotes tumor progression. Exosomes are critically involved in cancer progression. The presence of HOTAIR in the circulating exosomes and the roles of exosomal HOTAIR in gastric cancer (GC) remains unknown. This study aimed to investigate the role of HOTAIR in exosomes in promoting the growth and metastasis of GC. METHODS Serum exosomes from GC patients were captured by CD63 immunoliposome magnetic spheres (CD63-IMS), and the biological characteristics of the exosomes were identified. The expression levels of HOTAIR in GC cells, tissues, serum and serum exosomes were detected by fluorescence quantitative PCR (qRT-PCR), and the clinicopathological correlation was statistically analyzed. The growth and metastasis abilities of GC cells with HOTAIR knockdown in vitro were evaluated by cell experiment. The effects of HOTAIR highly-expressed NCI-N87 cell-derived exosomes were used to treat HOTAIR lowly-expressed MKN45 cells on GC growth and metastasis were also evaluated. RESULTS The exosomes isolated by CD63-IMS had a particle size of 89.78 ± 4.8 nm and were oval membranous particles. The expression of HOTAIR in tumor tissues and serum of GC patients was increased (P < 0.05), and the expression of HOTAIR in serum exosomes was significantly increased (P < 0.01). The in NCI-N87 and MKN45 cell experiment demonstrated that HOTAIR knockdown by RNA interference suppressed cell growth and metastasis in NCI-N87 cells. Coculture of exosomes secreted by NCI-N87 cells with MKN45 cells significantly increased the expression of HOTAIR, and enhanced cell growth and metastasis. CONCLUSION LncRNA HOTAIR can be used as a potential biomarker which provides a new way for the diagnosis and treatment of GC.
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Affiliation(s)
- Pan Chen
- The Animal Laboratory Center, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China
| | - Zhenyang Liu
- Department of Gastroenterology and Urology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, No. 283, Tongzipo Road, Changsha, 410013, Hunan, China
| | - Hua Xiao
- Hepatobiliary Surgery Department, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China
| | - Xiaolin Yang
- Department of Gastroenterology and Urology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, No. 283, Tongzipo Road, Changsha, 410013, Hunan, China
| | - Ting Li
- Department of Gastroenterology and Urology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, No. 283, Tongzipo Road, Changsha, 410013, Hunan, China
| | - Wei Huang
- Department of Radiation Oncology, Research Center of Carcinogenesis and Targeted Therapy/National Clinical Research Center of Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Huijun Zhou
- Department of Gastroenterology and Urology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, No. 283, Tongzipo Road, Changsha, 410013, Hunan, China.
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Zhao J, Zhang L, Zhao Y, Wu N, Zhang X, Guo R, Li H, Li C, Zheng K, Liu D, Tang S. Long noncoding RNA HOTAIR promotes breast cancer development through the lncRNA HOTAIR/miR-1/GOLPH3 axis. Clin Transl Oncol 2023; 25:3420-3430. [PMID: 37099061 DOI: 10.1007/s12094-023-03197-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 04/07/2023] [Indexed: 04/27/2023]
Abstract
BACKGROUND The lncRNA HOTAIR is frequently overexpressed in breast cancer tissues and plays an important role in the development of breast cancer. Here, we investigated the effect of the lncRNA HOTAIR on the biological behaviour of breast cancer cells and its molecular mechanism. METHODS We investigated the level of HOTAIR in breast cancer and its clinical pathological characteristics by bioinformatic methods. Then, we evaluated the effects of HOTAIR and miRNA-1 expression on the biological behaviour of breast cancer cells by qPCR, Cell Counting Kit-8 (CCK-8) assay, clonogenic assays, Transwell assay and flow cytometry for cell proliferation, invasion migration and apoptosis, and cell cycle analysis. Finally, the target genes of the lncRNA HOTAIR/miR-1/GOLPH3 regulatory axis were validated by luciferase reports. RESULTS The expression of HOTAIR in breast cancer tissues was significantly higher than that in normal breast tissues (P < 0.05). Silencing of HOTAIR suppressed cell proliferation, invasion and migration, promoted apoptosis and induced G1 phase block in breast cancer (P < 0.0001). We also verified that miR-1 is a target of HOTAIR and that GOLPH3 is a target of miR-1 by luciferase reporter assays (P < 0.001). CONCLUSIONS The expression of HOTAIR was significantly elevated in breast cancer tissues. Reducing the expression of HOTAIR inhibited the proliferation, invasion and migration of breast cancer cells and promoted apoptosis, and the mechanism was mainly the effect of the lncRNA HOTAIR/miR-1/GOLPH3 regulatory axis on the biological behaviour of breast cancer cells.
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Affiliation(s)
- Jiawen Zhao
- Department of Breast Surgery, The Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Kunming, China
| | - Lei Zhang
- Department of Breast Surgery, The Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Kunming, China
| | - Yingzhu Zhao
- Department of Breast and Thyroid Surgery, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Nan Wu
- Department of Medical School, Yunnan College of Business Management, Kunming, China
| | - Xi Zhang
- Department of Clinical Laboratory, Yunnan Cancer Hospital, Kunming, China
| | - Rong Guo
- Department of Breast Surgery, The Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Kunming, China
| | - Huimeng Li
- Second Department of General Surgery, Southern Central Hospital of Yunnan Province, The First People's Hospital of Honghe State, Honghe Hospital Affiliated to Kunming Medical University, Mengzi, Honghe, China
| | - Chunxiang Li
- Department of Breast Surgery, The Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Kunming, China
| | - Kai Zheng
- Department of Breast Surgery, The Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Kunming, China.
| | - Dequan Liu
- Department of Breast Surgery, The Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Kunming, China.
| | - Shicong Tang
- Department of Breast Surgery, The Third Affiliated Hospital of Kunming Medical University, Yunnan Cancer Hospital, Kunming, China.
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Shadkam R, Saadat P, Azadmehr A, Chehrazi M, Daraei A. Key Non-coding Variants in Three Neuroapoptosis and Neuroinflammation-Related LncRNAs Are Protectively Associated with Susceptibility to Parkinson's Disease and Some of Its Clinical Features. Mol Neurobiol 2023:10.1007/s12035-023-03708-x. [PMID: 37946005 DOI: 10.1007/s12035-023-03708-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 10/10/2023] [Indexed: 11/12/2023]
Abstract
Research findings show that genetic susceptibility to sporadic Parkinson's disease (PD), a common neurodegenerative disorder, is determined through gene variation of loci involved in its development and pathogenesis. A growing body of strong evidence has revealed that dysfunction of long non-coding RNAs (lncRNAs) plays key roles in the pathogenesis and progression of PD through impairing neuronal signaling pathways, but little is known about the relationship between their variants and PD susceptibility. In this research, we intended to study the relationship between functional SNPs rs12826786C>T, rs3200401C>T, and rs6931097G>A in the key lncRNAs stimulating neuroapoptosis and neuroinflammation in PD, including HOTAIR, MALAT1, and lincRNA-P21, respectively, with susceptibility to PD as well as its clinical symptoms.The population of this study consisted of 240 individuals, including 120 controls and 120 cases, and the sample taken from them was peripheral blood. Genotyping of the target SNPs was done using PCR-RFLP. We found that the healthy individuals carry more T allele of MALAT1-rs3200401C>T compared to the patients (P= 0.019). Furthermore, it was observed that in the dominant genetic model, subjects with genotypes carrying the T allele have a lower risk of PD (OR= 0.530; CI= 0.296-0.950; P= 0.033). Regarding the lincRNA-P21-rs6931097G>A, we observed a significant protective relationship between its GA (OR= 0.144; CI= 0.030-0.680; P= 0.014) and AA (OR= 0.195; CI= 00.047-0.799; P= 0.023) genotypes with the manifestation of tremor and bradykinesia symptoms, respectively. Furthermore, the findings indicated that the minor TT genotype of HOTAIR-rs12826786C>T was significantly associated with a reduced risk of bradykinesia symptoms (OR= 0.147; CI= 0.039-0.555; P= 0.005). Collectively, these findings suggest that MALAT1-rs3200401C>T may be an important lncRNA SNP against the development of PD, while the other two SNPs show protective effects on the clinical manifestations of PD in a way that lincRNA-P21-rs6931097G>A has a protective effect against the occurrence of tremor and bradykinesia symptoms in PD patients, and HOTAIR -rs12826786C>T indicates a protective effect against the display of bradykinesia feature. Therefore, they can have valuable potential as biomarkers for clinical evaluations of this disease.
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Affiliation(s)
- Roshanak Shadkam
- Student Research Committee, Babol University of Medical Sciences, Babol, Iran
- Department of Medical Genetics, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Payam Saadat
- Mobility Impairment Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Abbas Azadmehr
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
| | - Mohammad Chehrazi
- Department of Biostatistics and Epidemiology, School of Public Health, Babol University of Medical Sciences, Babol, Iran
| | - Abdolreza Daraei
- Department of Medical Genetics, School of Medicine, Babol University of Medical Sciences, Babol, Iran.
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.
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Luo Y, Lu X, Ma W, Xiao Y, Wei C, Yuan X, Wu Y, Wang Y, Xiong Y, Yu X, Wu X, He S, Liu Y, Wang J, Wu Q, Zhou H, Jiang Z. Dampening HOTAIR sensitizes the gastric cancer cells to oxaliplatin through miR-195-5p and ABCG2 pathway. J Cell Mol Med 2023; 27:3591-3600. [PMID: 37621132 PMCID: PMC10660622 DOI: 10.1111/jcmm.17925] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 07/22/2023] [Accepted: 08/04/2023] [Indexed: 08/26/2023] Open
Abstract
Long non-coding RNAs (lncRNA) have an extensive role in the progression and chemoresistance of gastric cancer (GC). Deeply study the regulatory role of lncRNAs could provide potential therapeutic targets. The aim of this study is to explore the regulatory role of HOTAIR in the progression and oxaliplatin resistance of GC. The expression of HOTAIR in GC and cell lines were detected by using qRT-PCR. Cell proliferation and apoptosis were analysed by CCK-8, EdU incorporation and flow cytometry. Luciferase reporter assay was used to identify the interaction between HOTAIR and ABCG2 (ATP-binding cassette (ABC) superfamily G member 2, ABCG2) via miR-195-5p. The regulatory functions were verified by using molecular biology experiments. HOTAIR was significantly overexpressed in GC and associated with poor prognosis. Knock-down of HOTAIR inhibited the GC cells proliferation and oxaliplatin resistance, while overexpression of HOTAIR showed opposite functions. Further studies found that HOTAIR acted as a competing endogenous RNA (ceRNA) to absorb miR-195-5p and elevated the expression of ABCG2, which leads to resistance of GC cells to oxaliplatin. Taken together, our findings demonstrated that HOTAIR regulates ABCG2 induced resistance of GC to oxaliplatin through miR-195-5p signalling and illustrate the great potential of developing new therapeutic targets for GC patients.
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Affiliation(s)
- Yaomin Luo
- Institute of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
- Department of Biochemistry and Molecular Biology, School of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
| | - Xintong Lu
- Institute of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
- Department of Biochemistry and Molecular Biology, School of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
| | - Wenrong Ma
- School of PharmacyNorth Sichuan Medical CollegeNanchongChina
| | - Yang Xiao
- Institute of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
- Department of Biochemistry and Molecular Biology, School of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
| | - Chen Wei
- Institute of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
- Department of Biochemistry and Molecular Biology, School of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
| | - Xiaoxia Yuan
- Institute of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
- Department of Biochemistry and Molecular Biology, School of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
- School of PharmacyNorth Sichuan Medical CollegeNanchongChina
| | - Yueyue Wu
- Institute of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
- Department of Biochemistry and Molecular Biology, School of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
| | - Yunlin Wang
- Institute of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
- Department of Biochemistry and Molecular Biology, School of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
| | - Yiman Xiong
- Institute of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
- Department of Biochemistry and Molecular Biology, School of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
| | - Xin Yu
- Institute of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
- Department of Biochemistry and Molecular Biology, School of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
| | - Xue Wu
- Institute of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
- Department of Biochemistry and Molecular Biology, School of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
| | - Siqi He
- Institute of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
- Department of Biochemistry and Molecular Biology, School of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
| | - Yayudie Liu
- Institute of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
- Department of Biochemistry and Molecular Biology, School of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
| | - Jinjing Wang
- Institute of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
- Department of Biochemistry and Molecular Biology, School of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
| | - Qing Wu
- Department of Rehabilitation Medicinethe Affiliated Hospital of North Sichuan Medical CollegeNanchongChina
| | - Hui Zhou
- Department of Clinical Laboratorythe Affiliated Hospital of Jiaxing UniversityJiaxingChina
| | - Zhen Jiang
- Institute of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
- Department of Biochemistry and Molecular Biology, School of Basic Medicine and Forensic MedicineNorth Sichuan Medical CollegeNanchongChina
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Chu DX, Jin Y, Wang BR, Jiao Y, Zhang CK, Guo ZH, Hu SZ, Li N. LncRNA HOTAIR Enhances Epithelial-to-mesenchymal Transition to Promote the Migration and Invasion of Liver Cancer by Regulating NUAK1 via Epigenetic Inhibition miR-145-5p Expression. J Cancer 2023; 14:2329-2343. [PMID: 37576402 PMCID: PMC10414040 DOI: 10.7150/jca.85335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 06/19/2023] [Indexed: 08/15/2023] Open
Abstract
LncRNA HOTAIR play important roles in the epigenetic regulation of carcinogenesis and progression in liver cancer. Previous studies suggest that the overexpression of HOTAIR predicts poor prognosis. In this study, through transcriptome sequencing data and in vitro experiments, we found that HOTAIR were more highly expressed and there is significantly positive relationship between HOTAIR and NUAK1 in liver cancer tissues and cell lines. miR-145-5p was downregulated and showed negative correlation with HOTAIR and NUAK1. Transfect Sh-HOTAIR, LZRS-HOTAIR, miR-145 mimic, miR-145 inhibitor to change the expression of HOTAIR and miR-145-5p. The addition of HTH-01-015 inhibits the expression of NUAK1. HOTAIR knockdown, miR-145-5p upregulation and NUAK1 inhibition all repressed migration, invasion and metastasis and reversed the epithelial-to-mesenchymal transition in SNU-387 and HepG2 cells. We also showed that HOTAIR recruiting and binding PRC2 (EZH2) epigenetically represses miR-145-5p, which controls the target NUAK1, thus contributing to liver cancer cell-EMT process and accelerating tumor metastasis. Moreover, it is demonstrated that HOTAIR crosstalk with miR-145-5p/NUAK1 during epigenetic regulation. Our findings indicate that HOTAIR/miR-145-5p/NUAK1 axis acts as an EMT regulator and may be candidate prognostic biomarker and targets for new therapies in liver cancer.
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Affiliation(s)
- Dong-Xia Chu
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin, 130021, P.R. China
| | - Yu Jin
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin, 130021, P.R. China
| | - Bing-Rong Wang
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin, 130021, P.R. China
| | - Yan Jiao
- Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, Changchun, Jilin, 130021, P.R. China
| | - Chao-Ke Zhang
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin, 130021, P.R. China
| | - Zi-Han Guo
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin, 130021, P.R. China
| | - Shao-Zhuo Hu
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin, 130021, P.R. China
| | - Na Li
- Department of Pathophysiology, College of Basic Medical Sciences, Jilin University, Changchun, Jilin, 130021, P.R. China
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Shagerdi Esmaeli N, Asadi S, Bashash D, Salari S, Hamidpour M. Involvement Value of FLT-3, c-Myc, STAT3, p27, and HOTAIR Gene Expression in Acute Myeloid Leukemia Patients: A Molecular Perspective to a Novel Leukemogenesis Mechanism. Int J Hematol Oncol Stem Cell Res 2023; 17:145-155. [PMID: 37817968 PMCID: PMC10560651 DOI: 10.18502/ijhoscr.v17i3.13304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 10/05/2022] [Indexed: 10/12/2023] Open
Abstract
Background: The identification of long non-coding RNAs (lncRNAs) in the pathogenesis of acute myeloid leukemia (AML) has marked a new era in the molecular understating of the disease. This study investigated the correlation between the changes in the expression of lncRNAs, including HOTAIR, PVT-1, and CRNDE, and the alteration in the expression profile of FLT-3, c-Myc, STAT3, STAT5, and p27 in AML patients. Materials and Methods: Blood samples were collected from forty-one newly diagnosed AML patients and ten healthy individuals to evaluate the expression levels of the study genes using qRT-PCR analysis. The probable correlation between the gene expressions was determined using Pearson's correlation test. Results: The results showed that while there was a significant elevation in the expression of FLT3, c-Myc, STAT3, and HOTAIR, p27 expression remarkably diminished in AML patients compared to the control group. Also, a correlation was found between the expression of FLT-3 and p27 and the expression of HOTAIR and STAT3. It was assumed that FLT-3 had a role in increasing the proliferative and survival capacity of AML cells, at least partly, through c-Myc-mediated suppression of p27. Moreover, lncRNA HOTAIR showed to be involved in leukemia proliferation assumably by enhancing the expression of STAT3. Conclusion: Overall, the results of gene profile analysis suggested that studying the expression of HOTAIR, FLT-3, c-Myc, STAT3, and p27 could be helpful to AML patients, and each of these genes could be a valuable target for pharmaceutic intervention.
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Affiliation(s)
- Naser Shagerdi Esmaeli
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shahin Asadi
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Davood Bashash
- Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sina Salari
- Department of Medical Oncology, Hematology and Bone Marrow Transplantation, Taleghani Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohsen Hamidpour
- HSC Research Center, Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Abdelwhab A, Alaa El-Din Y, Sabry D, Aggour RL. The Effects of Umbilical Cord Mesenchymal Stem Cells -Derived Exosomes in Oral Squamous Cell Carcinoma (In vitro Study). Asian Pac J Cancer Prev 2023; 24:2531-2542. [PMID: 37505788 PMCID: PMC10676480 DOI: 10.31557/apjcp.2023.24.7.2531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 07/08/2023] [Indexed: 07/29/2023] Open
Abstract
OBJECTIVE Mesenchymal stem cells (MSCs) derived exosomes offers several advantages as a cell-free therapeutic agents. In this study, Umbilical cord mesenchymal stem cells exosomes (UC-MSCs-exos) effects on oral squamous cell carcinoma (OSCC) cell line was evaluated. METHODS UC-MSCs-exos were isolated and co-cultured with OSCC cells and their impact on OSCC was explored by various tests. Comet assay and western blot for cleaved caspase-3 and immunocytochemistry for caspase-8 were used for apoptosis assessment. HO-1 and Nrf2 were used to determine antioxidant levels. Tumor necrosis factor-α and interleukin-6 were assessed as inflammatory biomarkers. HOX transcript antisense intergenic long noncoding RNA (HOTAIR) expression was also evaluated. RESULTS In a dose-dependent manner, UC-MSCs-exos reduced the levels of pro-inflammatory cytokines (IL-6 and TNF-α) and induced apoptosis of OSCC in vitro. Meanwhile, we found that UC-MSCs-exos downregulate HOTAIR. CONCLUSION UC-MSCs-exos conferred a suppressive role on OSCC in vitro, highlighting a promising therapeutic role. However, the exact potentially involved molecules and molecular mechanisms need to be investigated in further studies.
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Affiliation(s)
- Amira Abdelwhab
- Lecturer of Oral Medicine, Diagnosis and Periodontology, Faculty of Dentistry, October 6 University, Cairo, Egypt.
| | - Yasmine Alaa El-Din
- Lecturer of Oral and Maxillofacial Pathology, Faculty of Dentistry, October 6 University, Cairo, Egypt.
| | - Dina Sabry
- Department of Medical Biochemistry, Faculty of Medicine, Cairo University, Cairo, Egypt.
- Department of Medical Biochemistry, Faculty of Medicine, Badr University in Cairo, Egypt.
| | - Reham Lotfy Aggour
- Lecturer of Oral Medicine, Diagnosis and Periodontology, Faculty of Dentistry, October 6 University, Cairo, Egypt.
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22
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Chen C, Jiang X, Ding C, Sun X, Wan L, Wang C. Downregulated lncRNA HOTAIR ameliorates polycystic ovaries syndrome via IGF-1 mediated PI3K/Akt pathway. Gynecol Endocrinol 2023; 39:2227280. [PMID: 37356454 DOI: 10.1080/09513590.2023.2227280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 05/29/2023] [Accepted: 06/13/2023] [Indexed: 06/27/2023] Open
Abstract
OBJECTIVE Polycystic ovarian syndrome (PCOS) is a common disorder that leads to infertility in reproductive-aged females. HOTAIR is highly expressed in various gynecological diseases and is associated with a poor prognosis. We aimed to explore the role of HOTAIR in PCOS. METHODS First, PCOS rats were induced using dehydroepiandrosterone and then treated with si-HOTAIR. Next, HOTAIR mRNA expression and serum hormone levels were detected. HE staining was applied to observe estrus cycle, ovarian morphology and count the number of follicles. Apoptosis in the ovary was detected by TUNEL. Thereafter, ovarian granulosa cells (GCs) were isolated from PCOS rats, transfected with si-HOTAIR and treated with LY294002 (Akt inhibitor) or IGF-1. CCK-8 and flow cytometry assays were used to evaluate cell viability and apoptosis. IGF-1, apoptosis- and PI3K/Akt pathway-associated protein expressions in ovary and GCs were also detected. RESULTS In in vivo experiments, si-HOTAIR decreased serum T, E2 and LH levels but increased FSH level, restored estrus cycle, ovarian morphology and inhibited apoptosis of ovary in PCOS rats. Meanwhile, in vitro assays showed that si-HOTAIR upregulated the viability but inhibited the apoptosis of PCOS GCs. Furthermore, both in vivo and in vitro assays revealed that si-HOTAIR increased Bcl-2 expression but suppressed Bax, Bad, IGF-1 expressions and PI3K, AKT phosphorylation. However, the aforementioned effects of si-HOTAIR in vitro were further enhanced by LY294002 and partially reversed by IGF-1. CONCLUSIONS HOTAIR knockdown improved PCOS, and the mechanism may relate to IGF-1-mediated PI3K/Akt pathway, indicating HOTAIR may be a novel therapeutic target for PCOS.
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Affiliation(s)
- Chunyue Chen
- Department of Reproductive Medicine, Zhejiang Chinese Medicine and Western Medicine Integrated Hospital, Hangzhou, China
| | - Xuejuan Jiang
- Department of Reproductive Medicine, Zhejiang Chinese Medicine and Western Medicine Integrated Hospital, Hangzhou, China
| | - Caifei Ding
- Department of Reproductive Medicine, Zhejiang Chinese Medicine and Western Medicine Integrated Hospital, Hangzhou, China
| | - Xin Sun
- Department of Reproductive Medicine, Zhejiang Chinese Medicine and Western Medicine Integrated Hospital, Hangzhou, China
| | - Lingyi Wan
- Department of Reproductive Medicine, Zhejiang Chinese Medicine and Western Medicine Integrated Hospital, Hangzhou, China
| | - Chenye Wang
- Department of Reproductive Medicine, Zhejiang Chinese Medicine and Western Medicine Integrated Hospital, Hangzhou, China
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23
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Amicone L, Marchetti A, Cicchini C. The lncRNA HOTAIR: a pleiotropic regulator of epithelial cell plasticity. J Exp Clin Cancer Res 2023; 42:147. [PMID: 37308974 DOI: 10.1186/s13046-023-02725-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 05/30/2023] [Indexed: 06/14/2023] Open
Abstract
The epithelial-to-mesenchymal transition (EMT) is a trans-differentiation process that endows epithelial cells with mesenchymal properties, including motility and invasion capacity; therefore, its aberrant reactivation in cancerous cells represents a critical step to gain a metastatic phenotype. The EMT is a dynamic program of cell plasticity; many partial EMT states can be, indeed, encountered and the full inverse mesenchymal-to-epithelial transition (MET) appears fundamental to colonize distant secondary sites. The EMT/MET dynamics is granted by a fine modulation of gene expression in response to intrinsic and extrinsic signals. In this complex scenario, long non-coding RNAs (lncRNAs) emerged as critical players. This review specifically focuses on the lncRNA HOTAIR, as a master regulator of epithelial cell plasticity and EMT in tumors. Molecular mechanisms controlling its expression in differentiated as well as trans-differentiated epithelial cells are highlighted here. Moreover, current knowledge about HOTAIR pleiotropic functions in regulation of both gene expression and protein activities are described. Furthermore, the relevance of the specific HOTAIR targeting and the current challenges of exploiting this lncRNA for therapeutic approaches to counteract the EMT are discussed.
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Affiliation(s)
- Laura Amicone
- Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Dipartimento di Medicina Molecolare, Sapienza University of Rome, Viale Regina Elena 324, Rome, 00161, Italy
| | - Alessandra Marchetti
- Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Dipartimento di Medicina Molecolare, Sapienza University of Rome, Viale Regina Elena 324, Rome, 00161, Italy
| | - Carla Cicchini
- Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Dipartimento di Medicina Molecolare, Sapienza University of Rome, Viale Regina Elena 324, Rome, 00161, Italy.
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Qian L, Li L, Li Y, Li S, Zhang B, Zhu Y, Yang B. LncRNA HOTAIR as a ceRNA is related to breast cancer risk and prognosis. Breast Cancer Res Treat 2023:10.1007/s10549-023-06982-4. [PMID: 37294527 DOI: 10.1007/s10549-023-06982-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 05/10/2023] [Indexed: 06/10/2023]
Abstract
PURPOSE Breast cancer (BC) is one of the biggest threats to women's health. LncRNA HOTAIR is related to the recurrence and metastasis of BC. Whether HOTAIR can serve as an effective biomarker to distinguish BC patients with different prognosis need to be further studied. METHODS The miRNA and mRNA expression profile data of BC patients were downloaded from TCGA database. Univariate Cox regression was used to screen differential expression genes (DEGs). The miRcode database and miRWalk database were used to predict miRNA binding to HOTAIR and binding sites of miRNAs, respectively. Kaplan-Meier (KM) analysis was used to estimate the overall survival rate of BC patients. Finally, qRT-PCR and western blot were applied to evaluate the expression level of HOTAIR and mRNAs between BC cells and normal mammary cells. RESULTS The patients with high HOTAIR expression had poor prognosis in BC. Totally 10 genes correlated with BC prognosis were identified from 170 DEGs, among which PAX7, IYD, ZIC2, MS4A1, TPRXL, CD24, LHX1 were positively correlated with HOTAIR, while CHAD, NPY1R, TPRG1 were opposite. The levels of IYD, ZIC2, CD24 mRNA and protein were increased in BC tissues and BC cells. In BC cells, the levels of IYD, ZIC2 and CD24 mRNA and protein were significantly increased in HOTAIR overexpressed group. HOTAIR had the strongest interaction with hsa-miR-129-5p, followed by hsa-miR-107. CONCLUSION HOTAIR regulated the expression of downstream genes by interacting with 8 miRNAs and ultimately affected the prognosis of BC patients.
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Affiliation(s)
- Liyu Qian
- Department of Surgical Oncology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Li Li
- Department of Breast and Thyroid Surgery, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Yang Li
- Department of Cardiac Surgery, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Shen Li
- Institute of Mental Health, Tianjin Anding Hospital, Mental Health Center of Tianjin Medical University, Tianjin, China
| | - Bo Zhang
- Department of Immunology, College of Basic Medical Sciences, Tianjin Medical University, No.22 Qixiangtai Road, Heping District, Tianjin, 300070, China.
| | - Yu Zhu
- Department of Clinical Laboratory, Nankai University Affiliated Third Center Hospital, Nankai University, Tianjin, 300170, China.
- Department of Clinical Laboratory, Tianjin Third Center Hospital, 83 Jintang Road, Hedong District, Tianjin, 300170, China.
| | - Bing Yang
- Department of Cell Biology, College of Basic Medical Sciences, Tianjin Medical University, No.22 Qixiangtai Road, Heping District, Tianjin, 300070, China.
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Cao M, Jin W, Li Y, Wang M, Wan F, Ren Y, Gu Y, Ma J, Zhang L. Reversal of H 2O 2-induced cell death by knockdown of HOTAIR in HTR-8/SVneo cells by mediation of miR-106b-5p/ACSL4 axis. Funct Integr Genomics 2023; 23:161. [PMID: 37184696 DOI: 10.1007/s10142-023-01070-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 04/12/2023] [Accepted: 04/24/2023] [Indexed: 05/16/2023]
Abstract
Preeclampsia is a serious threat to the health of pregnant women. Injury of trophoblasts could contribute to the progression of preeclampsia, and H2O2 was able to induce apoptosis in trophoblasts. LncRNAs have been reported to be involved in the progression of preeclampsia. Additionally, lncRNA HOTAIR is upregulated in patients with preeclampsia. However, the function of HOTAIR in H2O2-treated trophoblasts remains unclear. To explore the function of HOTAIR in preeclampsia, HTR-8/SVneo cells were stimulated with H2O2. RT-qPCR was performed to measure HOTAIR expression in HTR-8/SVneo cells. The apoptosis of HTR-8/SVneo cells was measured using TUNEL staining. The mitochondrial membrane potential was measured using JC-1 staining. Western blotting was performed to detect the expression of ACSL4, GPX4, and FTH1 in HTR-8/SVneo cells. The level of HOTAIR in HTR-8/SVneo cells was upregulated by H2O2. In addition, H2O2 notably inhibited the proliferation of HTR-8/SVneo cells, whereas knockdown of HOTAIR reversed this phenomenon. The mitochondrial membrane potential in HTR-8/SVneo cells was significantly inhibited by H2O2 and partially abolished by HOTAIR silencing. Moreover, HOTAIR could bind to miR-106b-5p; ACSL4 was identified as the downstream target of miR-106b-5p. Furthermore, HOTAIR knockdown reversed H2O2-induced ferroptosis in HTR-8/SVneo cells by regulating miR-106b-5p/ACSL4. Collectively, the knockdown of HOTAIR reversed H2O2-induced ferroptosis in HTR-8/SVneo cells by mediating miR-106b-5p/ACSL4. Thus, HOTAIR may serve as a new therapeutic target against preeclampsia.
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Affiliation(s)
- Minkai Cao
- Department of Obstetrics, Wuxi Maternity and Child Health Care Hospital, Women's Hospital of Jiangnan University, Wuxi, 214023, Jiangsu, China
| | - Weilai Jin
- Department of Neonatology, Affiliated Children's Hospital of Jiangnan University, Wuxi, China
| | - Ying Li
- Department of Obstetrics, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, 214023, Jiangsu, China
| | - Mingxin Wang
- School of Life Science and Technology, China Pharmaceutical University, Nanjing, Jiangsu, China
| | - Faguang Wan
- Department of Ultrasound Medicine, The Affiliated Wuxi Maternity and Child Health Care Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Yongwei Ren
- State Key Laboratory of Reproductive Medicine, Research Institute for Reproductive Health and Genetic Diseases, The Affiliated Wuxi Matemity and Child Health Care Hospital of Nanjing Medical University, Wuxi, Jiangsu, China
| | - Ying Gu
- Department of Obstetrics, Wuxi Maternity and Child Health Care Hospital, Women's Hospital of Jiangnan University, Wuxi, 214023, Jiangsu, China.
| | - Jinqi Ma
- Department of Obstetrics, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi, 214023, Jiangsu, China.
| | - Le Zhang
- Department of Neonatology, Affiliated Children's Hospital of Jiangnan University, Wuxi, China.
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Raju GSR, Pavitra E, Bandaru SS, Varaprasad GL, Nagaraju GP, Malla RR, Huh YS, Han YK. HOTAIR: a potential metastatic, drug-resistant and prognostic regulator of breast cancer. Mol Cancer 2023; 22:65. [PMID: 36997931 PMCID: PMC10061914 DOI: 10.1186/s12943-023-01765-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 03/14/2023] [Indexed: 04/01/2023] Open
Abstract
HOX transcript antisense intergenic RNA (HOTAIR) is an oncogenic non-coding RNA whose expression is strongly correlated with the tumor grade and prognosis of a variety of carcinomas including breast cancer (BC). HOTAIR regulates various target genes via sponging and epigenetic mechanisms and controls various oncogenic cellular and signaling mechanisms including metastasis and drug resistance. In BC cells, HOTAIR expression is regulated by a variety of transcriptional and epigenetic mechanisms. In this review, we describe the regulatory mechanisms that govern HOTAIR expression during cancer development and explore how HOTAIR drives BC development, metastasis, and drug resistance. In the final section of this review, we focus on the role of HOTAIR in BC management, therapeutic treatment, and prognosis, highlighting its potential therapeutic applications.
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Affiliation(s)
- Ganji Seeta Rama Raju
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul, 04620, Republic of Korea
| | - Eluri Pavitra
- NanoBio High-Tech Materials Research Center, Biological Sciences and Bioengineering, Inha University, Incheon, 22212, Republic of Korea
| | | | - Ganji Lakshmi Varaprasad
- NanoBio High-Tech Materials Research Center, Biological Sciences and Bioengineering, Inha University, Incheon, 22212, Republic of Korea
| | | | - Rama Rao Malla
- Cancer Biology Laboratory, Department of Biochemistry and Bioinformatics, GIS, GITAM (Deemed to be University), Visakhapatnam, Andhra Pradesh, 530045, India.
| | - Yun Suk Huh
- NanoBio High-Tech Materials Research Center, Biological Sciences and Bioengineering, Inha University, Incheon, 22212, Republic of Korea.
| | - Young-Kyu Han
- Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul, 04620, Republic of Korea.
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Xie Z, Xia J, Jiao M, Zhao P, Wang Z, Lin S, Xing Y, Li Y, Lu Z, Zhong Z, Miao C, Zhou P, Qian J, Wang L, Zhang D, Gu J, Chu Y, Liu R. Exosomal lncRNA HOTAIR induces PDL1(+) B cells to impede anti-tumor immunity in colorectal cancer. Biochem Biophys Res Commun 2023; 644:112-21. [PMID: 36640665 DOI: 10.1016/j.bbrc.2023.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 12/28/2022] [Accepted: 01/02/2023] [Indexed: 01/09/2023]
Abstract
Regulatory B cells (Bregs) contribute to tumor immunosuppression. However, how B cells acquire their regulatory features in tumors remain unclear. Exosomes are important messengers that transmit tumor information to remodel tumor immunity. Here we revealed that tumor-derived exosomes drive Bregs to suppress anti-tumor immunity by delivering long non-coding RNAs (lncRNAs). HOTAIR was screened by lncRNA profiling in both colorectal cancer (CRC)-derived exosomes and infiltrating B cells. Tumor-derived HOTAIR polarized B cells toward a regulatory feature marked by programmed cell death-ligand 1 (PDL1) in CRC, and induced PDL1+ B cells to suppress CD8+ T cell activity. Exosomal HOTAIR bound to and protected pyruvate kinase M2 (PKM2) against ubiquitination degradation, resulting in STAT3 activation and PDL1 expression. Results from CRC patients showed a positive correlation between exosomal HOTAIR and tumor-infiltrating PDL1+ B cells. These findings reveal how B cells acquire PDL1-dominant regulatory feature in CRC, implying the clinical significance of exosomal therapy targeting HOTAIR.
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Khaliefa AK, Desouky EM, Hozayen WG, Shaaban SM, Hasona NA. miRNA-1246, HOTAIR, and IL-39 signature as potential diagnostic biomarkers in breast cancer. Noncoding RNA Res 2023; 8:205-210. [PMID: 36865390 PMCID: PMC9972401 DOI: 10.1016/j.ncrna.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/19/2023] [Accepted: 02/08/2023] [Indexed: 02/11/2023] Open
Abstract
The molecular alterations in noncoding RNA can lead to a cellular storm that is correlated to higher mortality and morbidity rates and contributes to the progression and metastasis of cancer. Herein, we aim to evaluate the expression levels and correlations of microRNA-1246 (miR-1246), HOX transcript antisense RNA (HOTAIR), and interleukin-39 (IL-39) in patients with breast cancer (BC). In this study, 130 participants were recruited, including 90 breast cancer patients and 40 healthy control participants. Serum levels of miR-1246 and HOTAIR expression were assessed by quantitative real-time polymerase chain reaction (qRT-PCR). Also, the level of IL-39 expression was evaluated using a Western blot. All BC participants demonstrated a remarkable elevation in miR-1246 and HOTAIR expression levels. Moreover, IL-39 expression levels demonstrated a noticeable decline in BC patients. Furthermore, the differential expression fold of miR-1246 and HOTAIR revealed a strong positive correlation among breast cancer patients. In addition, a negative relationship between the IL-39 and the miR-1246 and HOTAIR differential expression was also noticed. This study revealed that HOTAIR/miR-1246 exerts an oncogenic impact in patients with breast cancer. The expression levels of circulation miR-1246, HOTAIR, and IL-39 could be considered early diagnostic biomarkers in BC patients.
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Affiliation(s)
- Amal K. Khaliefa
- Department of Biochemistry, Faculty of Science, Beni-Suef University, Salah Salim St., 62511, Beni-Suef, Egypt
| | - Ekram M. Desouky
- Department of Biochemistry, Faculty of Science, Beni-Suef University, Salah Salim St., 62511, Beni-Suef, Egypt
| | - Walaa G. Hozayen
- Department of Biochemistry, Faculty of Science, Beni-Suef University, Salah Salim St., 62511, Beni-Suef, Egypt
| | - Saeed M. Shaaban
- Oncology Department, Faculty of Medicine, Beni-Suef University, 62511, Beni-Suef, Egypt
| | - Nabil A. Hasona
- Department of Biochemistry, Faculty of Science, Beni-Suef University, Salah Salim St., 62511, Beni-Suef, Egypt,Beni Suef National University, Faculty of Science, Biochemistry Department, Beni Suef, 62511, Egypt,Corresponding author. Department of Biochemistry, Faculty of Science, Beni-Suef University, Salah Salim St., 62511, Beni-Suef, Egypt.
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Lu J, Liu L, Chen J, Zhi J, Li J, Li L, Jiang Z. LncRNA HOTAIR in exercise-induced neuro-protective function in Alzheimer's disease. Folia Neuropathol 2022; 60:414-20. [PMID: 36734383 DOI: 10.5114/fn.2022.118961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION Exercise is effective in Alzheimer's disease (AD), which is characterized by neuro-degenerative progress with increasing morbidity. The present study aimed to explore whether HOTAIR participated in the regulation of exercise in AD. MATERIAL AND METHODS A relative expression of serum HOTAIR was detected using quantitative real-time polymerase chain reaction (PCR). The diagnostic significance of HOTAIR on distinguishing AD patients was evaluated by receiver operating characteristic (ROC) curve. Correlations between HOTAIR expression and Mini-Mental State Examination (MMSE) score or Alzheimer's Disease Assessment Scale-Cognitive (ADAS-Cog) score were analyzed with Pearson's test. Logistic regression analysis was applied to investigate factors as independent indicators for HOTAIR expression. RESULTS In AD patients, the expression of HOTAIR was increased, and it could function as a diagnostic marker in AD patients. The expression of HOTAIR was associated with MMSE score and ADAS-Cog score in AD patients before exercise. Exercise ameliorated the cognitive impairment and reduced the relative serum expression of HOTAIR. Exercise was proved to be an independent indicator of HOTAIR expression. CONCLUSIONS HOTAIR was a possible biomarker for indicating AD patients, and it was correlated with MMSE scores and ADAS-Cog results. Exercise might moderate AD progress via controlling HOTAIR.
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Xiang Y, Hua Q. The Role and Mechanism of Long Non-Coding RNA HOTAIR in the Oncogenesis, Diagnosis, and Treatment of Head and Neck Squamous Cell Carcinoma. Clin Med Insights Oncol 2023; 17:11795549231169099. [PMID: 37153904 PMCID: PMC10161338 DOI: 10.1177/11795549231169099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 03/26/2023] [Indexed: 05/10/2023] Open
Abstract
The most frequent malignant tumor of the head and neck is head and neck squamous cell carcinoma (HNSCC), which has a high frequency, a poor prognosis in the late stages, and subpar therapeutic results. As a result, early HNSCC diagnosis and treatment are urgently needed; however, there are no good diagnostic biomarkers or efficient therapeutic targets at this time. The long-stranded non-coding RNA HOTAIR may be important in the pathogenesis of cancer, according to recent research. By interactions with DNA, RNA, and proteins, it has been demonstrated that HOTAIR, a >200 nucleotide RNA transcript, plays a role in the biological processes of many types of tumor cells, including proliferation, metastasis, and prognosis of HNSCC. Hence, this review discusses HOTAIR's function and molecular mechanisms in HNSCC.
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Affiliation(s)
| | - Qingquan Hua
- Qingquan Hua, Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, People’s Republic of China.
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Wang B, Yuan F, Zhang F, Miao Z, Jiang D. A systematic review and meta-analysis of the association between HOTAIR polymorphisms and susceptibility to breast cancer. Arch Med Sci 2023; 19:128-137. [PMID: 36817654 PMCID: PMC9897084 DOI: 10.5114/aoms.2019.87537] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 08/01/2019] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION Many studies are drawing attention to the associations of HOTAIR polymorphisms and susceptibility to breast cancer, while the results remain inconsistent. We conducted a meta-analysis on the association of four common HOTAIR polymorphisms with breast cancer susceptibility. MATERIAL AND METHODS Eligible published articles were searched in PubMed, Embase, Cochrane library databases and Web of Science databases up to July 2019. Odds ratios with 95% confidence intervals were used to identify potential links between lncRNA HOTAIR polymorphisms and the risk of breast cancer. RESULTS Our results showed no significance in all genetic models of all four SNPs. Pooled analyses detected crucial links between the rs1899663 polymorphism and decreased susceptibility to breast cancer in five genetic models rather than the dominant model in the hospital-based control subgroup. For the rs920778 polymorphism, we found that it significantly decreased breast cancer risk under recessive, homozygous and heterozygous models within the west Asian subgroup and increased breast cancer risk under allele and dominant models within the East Asian subgroup. Additionally, rs920778 polymorphism decreased breast cancer risk under recessive and heterozygous models in the hospital-based control subgroup. However, no significant association was observed between the rs4759314 polymorphism and breast cancer risk in overall and stratified analyses. For rs12826786 polymorphism, it was greatly associated with decreased breast cancer risk under recessive, homozygous and heterozygous models in the hospital-based control subgroup. CONCLUSIONS HOTAIR rs920778, rs1899663 and rs12826786 polymorphisms may contribute to breast cancer susceptibility.
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Affiliation(s)
- Bei Wang
- Department of Central Laboratory, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu, China
- Department of Central Laboratory, The Third Hospital Affiliated to Nantong University, Wuxi, Jiangsu, China
| | - Fenglai Yuan
- Department of Central Laboratory, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu, China
- Department of Central Laboratory, The Third Hospital Affiliated to Nantong University, Wuxi, Jiangsu, China
| | - Feng Zhang
- Department of Central Laboratory, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu, China
- Department of Central Laboratory, The Third Hospital Affiliated to Nantong University, Wuxi, Jiangsu, China
| | - Zongning Miao
- Department of Central Laboratory, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu, China
- Department of Central Laboratory, The Third Hospital Affiliated to Nantong University, Wuxi, Jiangsu, China
| | - Donglin Jiang
- Department of Central Laboratory, The Hospital Affiliated to Jiangnan University, Wuxi, Jiangsu, China
- Department of Central Laboratory, The Third Hospital Affiliated to Nantong University, Wuxi, Jiangsu, China
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Guo Y, Liu B, Huang T, Qi X, Li S. HOTAIR modulates hepatocellular carcinoma progression by activating FUT8/core-fucosylated Hsp90/MUC1/STAT3 feedback loop via JAK1/STAT3 cascade. Dig Liver Dis 2023; 55:113-122. [PMID: 35504805 DOI: 10.1016/j.dld.2022.04.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/22/2022] [Accepted: 04/13/2022] [Indexed: 12/31/2022]
Abstract
BACKGROUND Glycosylation exhibits crucial effect on hepatocellular carcinoma (HCC) progression. Long non-coding RNAs (lncRNAs) are involved in multilevel regulation of gene transcription during tumor development. The purpose of this study is to clarify the potential mechanism that HOTAIR modulates hepatocellular carcinoma progression by activating FUT8/core-fucosylated Hsp90/MUC1/STAT3 feedback loop via JAK1/STAT3 cascade. METHODS qRT-PCR was used to show the differential expression of genes. Functional experiments were used to measure the malignancy of HCC cells. ChIP and co-IP assays showed the directly interaction of the key molecules. Xenografts was conducted to show the in vivo effects. RESULTS Upregulation of FUT8 showed closely correlation with HCC progression. Core-fucosylation of Hsp90 stabilized MUC1 binding to the downstream p-STAT3, which involved in the activation of JAK1/STAT3 cascade. STAT3 was identified as the regulator of FUT8 and MUC1 transcription, while FUT8 and MUC1 impacted STAT3 level both in nuclear and cytoplasm. HOTAIR recruited P300 to efficiently bind with STAT3. The transcript complex co-modulated the transcrption of FUT8 and MUC1. Moreover, highly HOTAIR expression also exhibited closely correlation with HCC progression. CONCLUSIONS FUT8 triggered core-fucosylated-Hsp90/MUC1/P300-HOTAIR-STAT3 cascade via JAK1/STAT3 pathway, which exhibited as positive feedback loop during HCC progression.
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Affiliation(s)
- Yanru Guo
- Department of Clinical Laboratory, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, China
| | - Bing Liu
- College of Laboratory Medicine, Dalian Medical University, Dalian, Liaoning 116044, China
| | - Tong Huang
- College of Laboratory Medicine, Dalian Medical University, Dalian, Liaoning 116044, China
| | - Xia Qi
- College of Laboratory Medicine, Dalian Medical University, Dalian, Liaoning 116044, China
| | - Shijun Li
- Department of Clinical Laboratory, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, China; College of Laboratory Medicine, Dalian Medical University, Dalian, Liaoning 116044, China.
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Tan W, Wang K, Yang X, Wang K, Wang N, Jiang TB. LncRNA HOTAIR promotes myocardial fibrosis in atrial fibrillation through binding with PTBP1 to increase the stability of Wnt5a. Int J Cardiol 2022; 369:21-28. [PMID: 35787431 DOI: 10.1016/j.ijcard.2022.06.073] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/02/2022] [Accepted: 06/29/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND Atrial fibrillation (AF) is one of the most common arrhythmia in clinical practice, and atrial fibrosis is the important mediator in AF. LncRNA HOTAIR was reported to be up-regulated in AF, while the underlying mechanism of HOTAIR in AF remains unclear. METHODS In vitro and in vivo AF model was established. qRT-PCR and Western blotting were used to assess the mRNA expression (HOTAIR, Wnt5a and PTBP1) and protein levels (Wnt5a, collagen I/III, α-SMA, CTGF, p-ERK, ERK, p-JNK, and JNK), respectively. MTT, CCK8, transwell assay was used to test cell viability, proliferation and migration, respectively. RIP assay assessed the correlation among HOTAIR, PTBP1 and Wnt5a. The level of α-SMA was detected by immunofluorescence. HE and Masson staining detected the histological changes and fibrosis in mouse heart tissues. RESULTS Ang II significantly increased the viability of atrial fibroblasts. The levels of HOTAIR and Wnt5a in fibroblasts were up-regulated by Ang II. HOTAIR silencing or Wnt5a significantly inhibited Ang II-induced proliferation, migration and fibrosis in fibroblasts. HOTAIR silencing repressed Wnt5a-mediated ERK and JNK signaling pathway, and Wnt5a partially abolished the effect of HOTAIR silencing on cell proliferation, migration and fibrosis. Meanwhile, HOTAIR could increase the mRNA stability of Wnt5a via recruiting PTBP1. Furthermore, HOTAIR knockdown notably inhibited the fibrosis in heart tissues of AF mice via regulation of Wnt signaling. CONCLUSION HOTAIR could promote atrial fibrosis in AF through binding with PTBP1 to increase Wnt5a stability. Our study might shed new insights on exploring new strategies against AF.
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Affiliation(s)
- Wei Tan
- Department of Cardiovascular, The First Affiliated Hospital of Soochow University, Suzhou 215000, Jiangsu Province, PR China; Department of Cardiovascular, Suqian First Hospital, Suqian 223800, Jiangsu Province, PR China
| | - Kun Wang
- Department of Thoracic and Cardiac Surgery, Suqian First Hospital, Suqian 223800, Jiangsu Province, PR China
| | - Xue Yang
- Department of Cardiovascular, Suqian First Hospital, Suqian 223800, Jiangsu Province, PR China
| | - Kun Wang
- Department of Cardiovascular, Suqian First Hospital, Suqian 223800, Jiangsu Province, PR China
| | - Ning Wang
- Department of Cardiovascular, Suqian First Hospital, Suqian 223800, Jiangsu Province, PR China
| | - Ting-Bo Jiang
- Department of Cardiovascular, The First Affiliated Hospital of Soochow University, Suzhou 215000, Jiangsu Province, PR China.
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Levy D, Jeyaram A, Born LJ, Chang KH, Abadchi SN, Hsu ATW, Solomon T, Aranda A, Stewart S, He X, Harmon JW, Jay SM. Impact of storage conditions and duration on function of native and cargo-loaded mesenchymal stromal cell extracellular vesicles. Cytotherapy 2022; 25:502-509. [PMID: 36513574 PMCID: PMC10079553 DOI: 10.1016/j.jcyt.2022.11.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND AIMS As evidenced by ongoing clinical trials and increased activity in the commercial sector, extracellular vesicle (EV)-based therapies have begun the transition from bench to bedside. As this progression continues, one critical aspect of EV clinical translation is understanding the effects of storage and transport conditions. Several studies have assessed the impact of storage on EV characteristics such as morphology, uptake and component content, but effects of storage duration and temperature on EV functional bioactivity and, especially, loaded cargo are rarely reported. METHODS The authors assessed EV outcomes following storage at different temperatures (room temperature, 4°C, -20°C, -80°C) for various durations as well as after lyophilization. RESULTS Mesenchymal stromal cell (MSC) EVs were observed to retain key aspects of their bioactivity (pro-vascularization, anti-inflammation) for up to 4-6 weeks at -20°C and -80°C and after lyophilization. Furthermore, via in vitro assays and an in vivo wound healing model, these same storage conditions were also demonstrated to enable preservation of the functionality of loaded microRNA and long non-coding RNA cargo in MSC EVs. CONCLUSIONS These findings extend the current understanding of how EV therapeutic potential is impacted by storage conditions and may inform best practices for handling and storing MSC EVs for both basic research and translational purposes.
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Affiliation(s)
- Daniel Levy
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, USA
| | - Anjana Jeyaram
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, USA
| | - Louis J Born
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, USA
| | - Kai-Hua Chang
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | | | - Angela Ting Wei Hsu
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Talia Solomon
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, USA
| | - Amaya Aranda
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, USA
| | - Samantha Stewart
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, USA
| | - Xiaoming He
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, USA
| | - John W Harmon
- Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Steven M Jay
- Fischell Department of Bioengineering, University of Maryland, College Park, Maryland, USA; Program in Molecular and Cell Biology, University of Maryland, College Park, Maryland, USA.
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Kuo FC, Wang YT, Liu CH, Li YF, Lu CH, Su SC, Liu JS, Li PF, Huang CL, Ho LJ, Lin CM, Lee CH. LncRNA HOTAIR impairs the prognosis of papillary thyroid cancer via regulating cellular malignancy and epigenetically suppressing DLX1. Cancer Cell Int 2022; 22:396. [PMID: 36494673 PMCID: PMC9733112 DOI: 10.1186/s12935-022-02817-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 11/30/2022] [Indexed: 12/13/2022] Open
Abstract
PURPOSE Papillary thyroid cancer (PTC) is the most common endocrine malignancy with a fast-growing incidence in recent decades. HOTAIR as a long non-coding RNA has been shown to be highly expressed in papillary thyroid cancer tissues with only a limited understanding of its functional roles and downstream regulatory mechanisms in papillary thyroid cancer cells. METHODS We applied three thyroid cancer cell lines (MDA-T32, MDA-T41 and K1) to investigate the phenotypic influence after gain or loss of HOTAIR. The Cancer Genome Atlas (TCGA) database were utilised to select candidate genes possibly regulated by HOTAIR with validation in the cellular system and immunohistochemical (IHC) staining of PTC tissues. RESULTS We observed HOTAIR was highly expressed in MDA-T32 cells but presents significantly decreased levels in MDA-T41 and K1 cells. HOTAIR knockdown in MDA-T32 cells significantly suppressed proliferation, colony formation, migration with cell cycle retardation at G1 phase. On the contrary, HOTAIR overexpression in MDA-T41 cells dramatically enhanced proliferation, colony formation, migration with cell cycle driven toward S and G2/M phases. Similar phenotypic effects were also observed as overexpressing HOTAIR in K1 cells. To explore novel HOTAIR downstream mechanisms, we analyzed TCGA transcriptome in PTC tissues and found DLX1 negatively correlated to HOTAIR, and its lower expression associated with reduced progression free survival. We further validated DLX1 gene was epigenetically suppressed by HOTAIR via performing chromatin immunoprecipitation. Moreover, IHC staining shows a significantly stepwise decrease of DLX1 protein from normal thyroid tissues to stage III PTC tissues. CONCLUSIONS Our study pointed out that HOTAIR is a key regulator of cellular malignancy and its epigenetic suppression on DLX1 serves as a novel biomarker to evaluate the PTC disease progression.
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Affiliation(s)
- Feng-Chih Kuo
- grid.260565.20000 0004 0634 0356Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Yu-Ting Wang
- grid.260565.20000 0004 0634 0356Department and Graduate Institute of Life Biochemistry, National Defense Medical Center, Taipei, Taiwan
| | - Chia-Hsin Liu
- grid.260565.20000 0004 0634 0356Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Yao-Feng Li
- grid.260565.20000 0004 0634 0356Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Chieh-Hua Lu
- grid.260565.20000 0004 0634 0356Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Sheng-Chiang Su
- grid.260565.20000 0004 0634 0356Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Jhih-Syuan Liu
- grid.260565.20000 0004 0634 0356Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Peng-Fei Li
- grid.260565.20000 0004 0634 0356Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Chia-Luen Huang
- grid.260565.20000 0004 0634 0356Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Li-Ju Ho
- grid.260565.20000 0004 0634 0356Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Chien-Ming Lin
- grid.260565.20000 0004 0634 0356Department of Pediatrics, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Chien-Hsing Lee
- grid.260565.20000 0004 0634 0356Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan ,grid.260565.20000 0004 0634 0356Department and Graduate Institute of Life Biochemistry, National Defense Medical Center, Taipei, Taiwan
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Hu CY, Su BH, Lee YC, Wang CT, Yang ML, Shen WT, Fu JT, Chen SY, Huang WY, Ou CH, Tsai YS, Kuo FC, Shiau AL, Shieh GS, Wu CL. Interruption of the long non-coding RNA HOTAIR signaling axis ameliorates chemotherapy-induced cachexia in bladder cancer. J Biomed Sci 2022; 29:104. [PMID: 36471329 PMCID: PMC9724340 DOI: 10.1186/s12929-022-00887-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 11/22/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Cisplatin-based chemotherapy is the first line of treatment for bladder cancer. However, cisplatin induces muscle wasting associated with NF-κB and cancer cachexia. HOTAIR, an oncogenic long non-coding RNA (lncRNA), promotes cancer progression in different cancers. Crosstalk between HOTAIR and NF-κB is documented. Prothymosin α (ProT) plays important roles in cancer progression and inflammation. However, the potential link between HOTAIR, ProT, and cisplatin-induced cancer cachexia remains unexplored. Here, we investigated the contribution of HOTAIR in cisplatin-induced cancer cachexia and dissected the potential signaling cascade involving the epidermal growth factor receptor (EGFR), ProT, NF-κB, and HOTAIR. MATERIALS AND METHODS Expression of ProT and HOTAIR transcripts and their correlations in tumor tissues of bladder cancer patients and bladder cancer cell lines were determined by RT-qPCR. Next, levels of phospho-EGFR, EGFR, phospho-NF-κB, and NF-κB were examined by immunoblot analysis in human bladder cancer cells treated with cisplatin. Expression of HOTAIR in cisplatin-treated cells was also assessed by RT-qPCR. Pharmacological inhibitors and overexpression and knockdown approaches were exploited to decipher the signaling pathway. The murine C2C12 myoblasts were used as an in vitro muscle atrophy model. The syngeneic murine MBT-2 bladder tumor was used to investigate the role of mouse Hotair in cisplatin-induced cancer cachexia. RESULTS Expression of ProT and HOTAIR was higher in bladder tumors than in normal adjacent tissues. There were positive correlations between ProT and HOTAIR expression in clinical bladder tumors and bladder cancer cell lines. Cisplatin treatment increased EGFR and NF-κB activation and upregulated ProT and HOTAIR expression in bladder cancer cells. ProT overexpression increased, whereas ProT knockdown decreased, HOTAIR expression. Notably, cisplatin-induced HOTAIR upregulation was abrogated by EGFR inhibitors or ProT knockdown. ProT-induced HOTAIR overexpression was diminished by NF-κB inhibitors. HOTAIR overexpression enhanced, whereas its knockdown reduced, cell proliferation, cachexia-associated pro-inflammatory cytokine expression, and muscle atrophy. Cachexia-associated symptoms were ameliorated in mice bearing Hotair-knockdown bladder tumors undergoing cisplatin treatment. CONCLUSIONS We demonstrate for the first time a critical role for HOTAIR and identify the involvement of the EGFR-ProT-NF-κB-HOTAIR signaling axis in cisplatin-induced cachexia in bladder cancer and likely other cancers. Our findings also provide therapeutic targets for this disease.
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Affiliation(s)
- Che-Yuan Hu
- grid.64523.360000 0004 0532 3255Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan ,grid.64523.360000 0004 0532 3255Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 138, Sheng Li Road, Tainan, 704302 Taiwan
| | - Bing-Hua Su
- grid.412896.00000 0000 9337 0481School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Ya-Che Lee
- grid.413878.10000 0004 0572 9327Department of Urology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan
| | - Chung-Teng Wang
- grid.64523.360000 0004 0532 3255Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, 1 University Road, Tainan, 701401 Taiwan
| | - Mei-Lin Yang
- grid.64523.360000 0004 0532 3255Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, 1 University Road, Tainan, 701401 Taiwan ,grid.413878.10000 0004 0572 9327Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan
| | - Wan-Ting Shen
- grid.64523.360000 0004 0532 3255Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, 1 University Road, Tainan, 701401 Taiwan
| | - Jing-Ting Fu
- grid.64523.360000 0004 0532 3255Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, 1 University Road, Tainan, 701401 Taiwan
| | - Shih-Yao Chen
- grid.411636.70000 0004 0634 2167Department of Nursing, College of Nursing, Chung Hwa University of Medical Technology, Tainan, Taiwan
| | - Wei-Yun Huang
- grid.64523.360000 0004 0532 3255Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, 1 University Road, Tainan, 701401 Taiwan
| | - Chien-Hui Ou
- grid.64523.360000 0004 0532 3255Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 138, Sheng Li Road, Tainan, 704302 Taiwan
| | - Yuh-Shyan Tsai
- grid.64523.360000 0004 0532 3255Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 138, Sheng Li Road, Tainan, 704302 Taiwan
| | - Feng-Chih Kuo
- grid.260565.20000 0004 0634 0356Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Ai-Li Shiau
- grid.64523.360000 0004 0532 3255Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, 1 University Road, Tainan, 701401 Taiwan ,grid.413878.10000 0004 0572 9327Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan
| | - Gia-Shing Shieh
- grid.64523.360000 0004 0532 3255Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 138, Sheng Li Road, Tainan, 704302 Taiwan ,grid.454740.6Department of Urology, Tainan Hospital, Ministry of Health and Welfare, Executive Yuan, Tainan, Taiwan
| | - Chao-Liang Wu
- grid.413878.10000 0004 0572 9327Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan ,grid.64523.360000 0004 0532 3255Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, 1 University Road, Tainan, 701401 Taiwan
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Park HW, Kim YR, Lee JY, Ko EJ, Kwon MJ, Kim JH, Kim NK. Association of Polymorphisms in the Long Non-Coding RNA HOTAIR with Recurrent Pregnancy Loss in a Korean Population. Genes (Basel) 2022; 13:2138. [PMID: 36421813 PMCID: PMC9690393 DOI: 10.3390/genes13112138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 11/05/2022] [Accepted: 11/11/2022] [Indexed: 01/21/2024] Open
Abstract
Recurrent pregnancy loss (RPL) affects 1% to 5% of women, with devastating effects on both reproductive health and psychological well-being. Homeobox (HOX) transcript antisense RNA (HOTAIR) is a long non-coding RNA (lncRNA) produced by HOXC; it plays a major role in invasion and development of ovarian and other cancers. The aim of the present study was to analyze effects of HOTAIR polymorphisms (rs4759314 A>G, rs920778 T>C, rs1899663 G>T, and rs7958904 G>C) on RPL in Korean women. A total of 403 women with RPL and 383 healthy women were selected for this study. Genotyping analysis was performed with the polymerase chain reaction, restriction fragment length polymorphism, and the TaqMan genotyping assay. Clinical characteristics were compared using Student's unpaired t-test and the chi-square test for categorical variables. Logistic regression was performed to evaluate associations between single nucleotide polymorphisms and RPL incidence. In all assays, p < 0.05 was considered significant. HOTAIR polymorphisms rs4759314A>G and rs920778T>C were highly associated with increased risk of RPL, specifically the haplotypes rs4759314A>G/rs1899663G>T (G-T) and rs4759314A>G/rs920778 T>C (G-C). These associations were maintained in haplotypes that contained three polymorphisms (rs4759314 A>G, rs920778 T>C, and rs1899663 G>T) A-C-G, G-T-G, and G-T-T, further indicating that the HOTAIR rs4759314 and rs920778 polymorphisms play significant roles in idiopathic RPL in Korean women.
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Affiliation(s)
- Hyeon Woo Park
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13488, Republic of Korea
| | - Young Ran Kim
- CHA Bundang Medical Center, Department of Obstetrics and Gynecology, School of Medicine, CHA University, Seongnam 13496, Republic of Korea
| | - Jeong Yong Lee
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13488, Republic of Korea
| | - Eun Ju Ko
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13488, Republic of Korea
| | - Min Jung Kwon
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13488, Republic of Korea
| | - Ji Hyang Kim
- CHA Bundang Medical Center, Department of Obstetrics and Gynecology, School of Medicine, CHA University, Seongnam 13496, Republic of Korea
| | - Nam Keun Kim
- Department of Biomedical Science, College of Life Science, CHA University, Seongnam 13488, Republic of Korea
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Amer HT, Eissa RA, El Tayebi HM. A cutting-edge immunomodulatory interlinkage between HOTAIR and MALAT1 in tumor-associated macrophages in breast cancer: A personalized immunotherapeutic approach. Front Mol Biosci 2022; 9:1032517. [PMID: 36387279 PMCID: PMC9649622 DOI: 10.3389/fmolb.2022.1032517] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 10/10/2022] [Indexed: 07/30/2023] Open
Abstract
Breast cancer (BC) is one of the most common cancers, accounting for 2.3 million cases worldwide. BC can be molecularly subclassified into luminal A, luminal B HER2-, luminal B HER2+, HER2+, and triple-negative breast cancer (TNBC). These molecular subtypes differ in their prognosis and treatment strategies; thus, understanding the tumor microenvironment (TME) of BC could lead to new potential treatment strategies. The TME hosts a population of cells that act as antitumorigenic such as tumor-associated eosinophils or pro-tumorigenic such as cancer-associated fibroblasts (CAFs), tumor-associated neutrophils (TANs), monocytic-derived populations such as MDSCs, or most importantly "tumor-associated macrophages (TAMs)," which are derived from CD14+ monocytes. TAMs are reported to have the pro-inflammatory phenotype M1, which is found only in the very early stages of tumor and is not correlated with progression; however, the M2 phenotype is anti-inflammatory that is correlated with tumor progression and metastasis. The current study focused on controlling the anti-inflammatory activity in TAMs of hormonal, HER2+, and TNBC by epigenetic fine-tuning of two immunomodulatory proteins, namely, CD80 and mesothelin (MSLN), which are known to be overexpressed in BC with pro-tumorigenic activity. Long non-coding RNAs are crucial key players in tumor progression whether acting as oncogenic or tumor suppressors. We focused on the regulatory role of MALAT1 and HOTAIR lncRNAs and their role in controlling the tumorigenic activity of TAMs. This study observed the impact of manipulation of MALAT1 and HOTAIR on the expression of both CD80 and MSLN in TAMs of BC. Moreover, we analyzed the interlinkage between HOTAIR and MALAT1 as regulators to one another in TAMs of BC. The current study reported an upstream regulatory effect of HOTAIR on MALAT1. Moreover, our results showed a promising use of MALAT1 and HOTAIR in regulating oncogenic immune-modulatory proteins MSLN and CD80 in TAMs of HER2+ and TNBC. The downregulation of MALAT1 and HOTAIR resulted in the upregulation of CD80 and MSLN, which indicates that they might have a cell-specific activity in TAMs. These data shed light on novel key players affecting the anti-inflammatory activity of TAMs as a possible therapeutic target in HER2+ and TNBC.
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Affiliation(s)
- Hoda T. Amer
- Department of Pharmacology and Toxicology, The Molecular Pharmacology Research Group, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo, Egypt
| | - Reda A. Eissa
- Department of Surgery, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Hend M. El Tayebi
- Department of Pharmacology and Toxicology, The Molecular Pharmacology Research Group, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo, Egypt
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Beiramzadeh A, Heidari Z, Norouzi M, Saravani M. Association Between HOTAIR rs920778 and H19 rs3741219 Polymorphisms with Hashimoto's Thyroiditis (HT) and Graves' Disease (GD). Rep Biochem Mol Biol 2022; 11:377-85. [PMID: 36718300 DOI: 10.52547/rbmb.11.3.377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 04/21/2022] [Indexed: 01/18/2023]
Abstract
Background Graves' disease (GD) and Hashimoto's thyroiditis (HT) are two autoimmune thyroid diseases (AITDs). The current study aimed to assess possible association between HOTAIR rs920778 and H19 rs3741219 polymorphisms with GD and HT. Methods We recruited 248 patients with autoimmune thyroid disease (133 HT patients and 115 GD patients) and 135 age- and sex-matched controls. The PCR-RFLP method was applied for genotyping of HOTAIR rs920778, and H19 rs3741219 polymorphisms. Results The HOTAIR rs920778 GA frequency was significantly higher in control compared to HT group. The Overdominant model showed a significant association with the risk of HT. However, no significant association was observed between this polymorphism and HT susceptibility in dominant and recessive models. The H19 rs3741219 GA was more repeated in HT patients compared to control group, but the difference was not significant. There was no association between HOTAIR rs920778 and H19 rs3741219 polymorphisms with GD in all genetic models. Discussion Our findings indicated that HOTAIR rs920778 polymorphism decreased the risk of HT. Since, this the first study, further studies with different races are required to confirm our results.
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AbdAllah NB, Al Ageeli E, Shbeer A, Abdulhakim JA, Toraih EA, Salman DO, Fawzy MS, Nassar SS. Long Non-Coding RNAs ANRIL and HOTAIR Upregulation is Associated with Survival in Neonates with Sepsis in a Neonatal Intensive Care Unit. Int J Gen Med 2022; 15:6237-6247. [PMID: 35898301 PMCID: PMC9309290 DOI: 10.2147/ijgm.s373434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 07/12/2022] [Indexed: 11/23/2022] Open
Abstract
Background Recently, long non-coding RNAs (lncRNAs) have emerged as potential molecular biomarkers for sepsis. We aimed to profile the expression signature of three inflammation-related lncRNAs, MALAT1, ANRIL, and HHOTAIR, in the plasma of neonates with sepsis and correlate these signatures with the phenotype. Patients and Methods This case–control study included 124 neonates with sepsis (88 survivors/36 non-survivors) admitted to the neonatal ICU and 17 healthy neonates. The relative expressions were quantified by real-time PCR and correlated to the clinic-laboratory data. Results The three circulating lncRNAs were upregulated in the cases; the median levels were MALAT1 (median = 1.71, IQR: −0.5 to 3.27), ANRIL (median = 1.09, IQR: 0.89 to 1.30), and HOTAIR (median = 1.83, IQR: 1.44 to 2.41). Co-expression analysis showed that the three studied lncRNAs were directly correlated (all p-values <0.001). Overall and stratification by sex analyses revealed significantly higher levels of the three lncRNAs in non-survivors compared to the survivor group (all p-values <0.001). Principal component analysis showed a clear demarcation between the two study cohorts in males and females. Cohorts with upregulated ANRIL (hazard ratio; HR = 4.21, 95% CI = 1.15–10.4, p=0.030) and HOTAIR (HR = 2.49, 95% CI = 1.02–6.05, p=0.044) were at a higher risk of mortality. Conclusion Circulatory MALAT1, ANRIL, and HOTAIR were upregulated in neonatal sepsis, and the latter two may have the potential as prognostic biomarkers for survival in neonatal sepsis.
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Affiliation(s)
- Nouran B AbdAllah
- Department of Pediatrics, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Essam Al Ageeli
- Department of Clinical Biochemistry (Medical Genetics), Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Abdullah Shbeer
- Anesthesiology and Intensive Care, Department of Surgery, Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Jawaher A Abdulhakim
- Medical Laboratory Department, College of Applied Medical Sciences, Taibah University, Yanbu, Saudi Arabia
| | - Eman A Toraih
- Division of Endocrine and Oncologic Surgery, Department of Surgery, School of Medicine, Tulane University, New Orleans, LA, USA.,Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Doaa O Salman
- Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Manal S Fawzy
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.,Department of Biochemistry, Faculty of Medicine, Northern Border University, Arar, Saudi Arabia
| | - Sanaa S Nassar
- Department of Pediatrics, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
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Kuo FC, Neville MJ, Sabaratnam R, Wesolowska-Andersen A, Phillips D, Wittemans LBL, van Dam AD, Loh NY, Todorčević M, Denton N, Kentistou KA, Joshi PK, Christodoulides C, Langenberg C, Collas P, Karpe F, Pinnick KE. HOTAIR interacts with PRC2 complex regulating the regional preadipocyte transcriptome and human fat distribution. Cell Rep 2022; 40:111136. [PMID: 35905723 PMCID: PMC10073411 DOI: 10.1016/j.celrep.2022.111136] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 05/06/2022] [Accepted: 07/01/2022] [Indexed: 12/12/2022] Open
Abstract
Mechanisms governing regional human adipose tissue (AT) development remain undefined. Here, we show that the long non-coding RNA HOTAIR (HOX transcript antisense RNA) is exclusively expressed in gluteofemoral AT, where it is essential for adipocyte development. We find that HOTAIR interacts with polycomb repressive complex 2 (PRC2) and we identify core HOTAIR-PRC2 target genes involved in adipocyte lineage determination. Repression of target genes coincides with PRC2 promoter occupancy and H3K27 trimethylation. HOTAIR is also involved in modifying the gluteal adipocyte transcriptome through alternative splicing. Gluteal-specific expression of HOTAIR is maintained by defined regions of open chromatin across the HOTAIR promoter. HOTAIR expression levels can be modified by hormonal (estrogen, glucocorticoids) and genetic variation (rs1443512 is a HOTAIR eQTL associated with reduced gynoid fat mass). These data identify HOTAIR as a dynamic regulator of the gluteal adipocyte transcriptome and epigenome with functional importance for human regional AT development.
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Affiliation(s)
- Feng-Chih Kuo
- Oxford Centre for Diabetes, Endocrinology, and Metabolism, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Headington OX3 7LE, UK; Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defence Medical Centre, Taipei, Taiwan
| | - Matt J Neville
- Oxford Centre for Diabetes, Endocrinology, and Metabolism, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Headington OX3 7LE, UK; NIHR Oxford Biomedical Research Centre, OUH Foundation Trust, Oxford, UK
| | - Rugivan Sabaratnam
- Oxford Centre for Diabetes, Endocrinology, and Metabolism, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Headington OX3 7LE, UK; Institute of Clinical Research, University of Southern Denmark, 5000 Odense C, Denmark; Steno Diabetes Center Odense, Odense University Hospital, 5000 Odense C, Denmark
| | | | - Daniel Phillips
- Oxford Centre for Diabetes, Endocrinology, and Metabolism, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Headington OX3 7LE, UK
| | - Laura B L Wittemans
- MRC Epidemiology Unit, Institute of Metabolic Science, University of Cambridge School of Clinical Medicine, Cambridge CB2 0QQ, UK; The Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, University of Oxford, Oxford, UK
| | - Andrea D van Dam
- Oxford Centre for Diabetes, Endocrinology, and Metabolism, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Headington OX3 7LE, UK
| | - Nellie Y Loh
- Oxford Centre for Diabetes, Endocrinology, and Metabolism, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Headington OX3 7LE, UK
| | - Marijana Todorčević
- Oxford Centre for Diabetes, Endocrinology, and Metabolism, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Headington OX3 7LE, UK
| | - Nathan Denton
- Oxford Centre for Diabetes, Endocrinology, and Metabolism, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Headington OX3 7LE, UK
| | - Katherine A Kentistou
- Centre for Global Health Research, Usher Institute, University of Edinburgh, Teviot Place, Edinburgh EH8 9AG, UK; Centre for Cardiovascular Sciences, Queen's Medical Research Institute, University of Edinburgh, Edinburgh EH16 4TJ, UK
| | - Peter K Joshi
- Centre for Global Health Research, Usher Institute, University of Edinburgh, Teviot Place, Edinburgh EH8 9AG, UK
| | - Constantinos Christodoulides
- Oxford Centre for Diabetes, Endocrinology, and Metabolism, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Headington OX3 7LE, UK
| | - Claudia Langenberg
- MRC Epidemiology Unit, Institute of Metabolic Science, University of Cambridge School of Clinical Medicine, Cambridge CB2 0QQ, UK
| | - Philippe Collas
- Department of Molecular Medicine, Institute of Basic Medical Sciences, Faculty of Medicine, University of Oslo, Oslo, Norway; Department of Immunology, Oslo University Hospital, Oslo, Norway
| | - Fredrik Karpe
- Oxford Centre for Diabetes, Endocrinology, and Metabolism, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Headington OX3 7LE, UK; NIHR Oxford Biomedical Research Centre, OUH Foundation Trust, Oxford, UK.
| | - Katherine E Pinnick
- Oxford Centre for Diabetes, Endocrinology, and Metabolism, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Headington OX3 7LE, UK.
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Sargazi S, Zahedi Abghari A, Mirinejad S, Heidari Nia M, Majidpour M, Danesh H, Saravani R, Sheervalilou R, Shakiba M, Zahedi Abghari F. Long noncoding RNA HOTAIR polymorphisms and susceptibility to bipolar disorder: a preliminary case-control study. Nucleosides Nucleotides Nucleic Acids 2022; 41:684-701. [PMID: 35469536 DOI: 10.1080/15257770.2022.2065017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Recent studies have shown that long noncoding RNAs contribute to the pathogenesis of bipolar disorder (BD). In this study, we genotyped four HOX Transcript Antisense Intergenic RNA (HOTAIR) gene polymorphisms to investigate if these variations could affect the risk of BD and its clinical subtypes. A total of 357 subjects, comprised of 194 BD patients and 163 age-matched healthy controls, were enrolled. Genotyping was carried out using PCR-RFLP and ARMS-PCR methods. We detected significant associations between the HOTAIR gene rs1899663 G/T, rs12826786 C/T, rs4759314 A/G, and rs920778 C/T polymorphism and the risk of BD under allelic, recessive, dominant, and codominant contrasted genetic models. The CT genotype of rs920778 C/T, GT genotype of rs1899663 G/T, and CT genotype of rs12826786 C/T polymorphisms enhanced the risk of BD type II (BDII). In contrast, the GG genotype of rs4759314 A/G polymorphism significantly diminished BDII risk by 83%. A positive association was noticed between CTTA and CTCG haplotypes of rs920778/rs1899663/rs12826786/rs4759314 and BD risk. Our findings reveal an interactive effect of HOTAIR polymorphisms on the development of BD and its subtypes. Further functional studies are needed to elucidate the role of these variations on HOTAIR expression and epigenetic status.
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Affiliation(s)
- Saman Sargazi
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Armin Zahedi Abghari
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran.,Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Shekoufeh Mirinejad
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Milad Heidari Nia
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Mahdi Majidpour
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran.,Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Hiva Danesh
- Department of Clinical Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Ramin Saravani
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran.,Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | | | - Mansoor Shakiba
- Department of Psychiatry, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Fateme Zahedi Abghari
- Department of Medical Genetics and Molecular Biology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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Kang S, Park M, Cho JY, Ahn SJ, Yoon C, Kim SG, Cho SJ. Tumorigenic mechanisms of estrogen and Helicobacter pylori cytotoxin-associated gene A in estrogen receptor α-positive diffuse-type gastric adenocarcinoma. Gastric Cancer 2022; 25:678-696. [PMID: 35391613 DOI: 10.1007/s10120-022-01290-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 03/09/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND Diffuse-type gastric cancer (DGC), for which Helicobacter pylori infection is a causal factor, is associated with poor prognosis among young women, possibly due to female hormones such as estrogen. We aimed to identify the carcinogenesis induced by estrogen and H. pylori in DGC. METHODS We screened and selected estrogen receptor alpha (ERα)-positive (MKN45) and ERα-negative (SNU5) DGC cell lines. H. pylori strain 60190 and its isogenic mutant strain lacking cytotoxin-associated gene A (60190ΔCagA) were used to infect MKN45 cells. And the cytotoxin-related gene A (CagA) cDNA which was cloned into pSP65-SR-HA (cagA-pSP65SRa) vector was used to transfect MKN45 cells. Tumor samples were used for DGC organoid culture. RESULTS In MKN45 cells, we found that estradiol promotes epithelial-mesenchymal transition (EMT) and stemness phenotypes via HOTAIR expression. These effects were further enhanced by the addition of CagA secreted by H. pylori but were reversed by co-treatment with fulvestrant (ICI 182,780), a selective ER degrader. We also validated the effect of estrogen on DGC organoids. ERα expression was associated with tumor invasion and HOTAIR expression in DGC patients with overt H. pylori infection. CONCLUSIONS These findings may explain the rapid DGC progression in young women with physiologically high levels of estrogen and suggest that fulvestrant with ovarian function suppression could serve as a tumor-suppressive agent in premenopausal patients with DGC.
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Affiliation(s)
- Seungkyung Kang
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Miree Park
- Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Jung Yeon Cho
- Seoul National University Hospital, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Su Jin Ahn
- Seoul National University College of Medicine, 103, Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Changhwan Yoon
- Department of Surgery, Columbia University Irving Medical Center, 630 W. 168th St, New York, NY, 10032, USA
| | - Sang Gyun Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea
| | - Soo-Jeong Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Republic of Korea.
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An C, Wang I, Li X, Xia R, Deng F. Long non-coding RNA in prostate cancer. Am J Clin Exp Urol 2022; 10:170-179. [PMID: 35874287 PMCID: PMC9301060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 03/15/2022] [Indexed: 06/15/2023]
Abstract
Prostate cancer is the most frequently diagnosed cancer in males and its development and progression remains an important area of study. Recently, long non-coding RNAs (lncRNAs) have been evidenced as key players in cancer pathogenesis. Specifically, dysregulation of long non-coding RNA (lncRNA) expression has shown to affect tumor proliferation and metastasis, acting as either tumor suppressors or oncogenes. However, its specific mechanisms and functions in prostate cancer remain unclear. This review provides an overview of currently available information on prostate cancer-related lncRNAs, including GAS5, GAS-007, MEG3, PCA3, PCAT14, PCAT1, PVT1, UCA1, SChLAP1, MALAT1, HOTAIR, and NEAT1. Notable tumor growth inhibitors include GAS5 and MEG3. GAS5 is evidenced to interfere with the AKT/MTOR signaling pathway through targeting microRNA mir-103. MEG3, however, is proposed to inhibit the cycle, sponge miR-9-5p, and induce gene silencing. PCAT1, PVT1, and UCA1 are important tumor growth promoters. PCAT1 is indicated to be a transcriptional repressor, a mir-145-5P sponge, and a P13K/AKT pathway activator. Studies suggest that PVT1 acts via microRNA targeting and regulating proliferating cell nuclear antigen. UCA1 may sponge miR-204 and miR-331-3p as well as regulate myosin VI. Thorough understanding of these lncRNAs may elucidate new aspects of prostate cancer pathology and serve a pivotal role in developing novel diagnostic and prognostic techniques.
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Affiliation(s)
- Christine An
- Institute of Human Nutrition, Columbia UniversityNew York, NY, USA
| | - Ian Wang
- State University of New York, Hofstra UniversityHempstead, NY, USA
| | - Xin Li
- Department of Molecular Pathobiology, New York University College of DentistryNY, USA
| | - Rong Xia
- Department of Pathology and Urology, New York University School of MedicineNY, USA
| | - Fangming Deng
- Department of Pathology and Urology, New York University School of MedicineNY, USA
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Guo S, King P, Liang E, Guo AA, Liu M. LncRNA HOTAIR sponges miR-301a-3p to promote glioblastoma proliferation and invasion through upregulating FOSL1. Cell Signal 2022; 94:110306. [PMID: 35292358 DOI: 10.1016/j.cellsig.2022.110306] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/07/2022] [Accepted: 03/08/2022] [Indexed: 01/29/2023]
Abstract
Glioblastoma, one of the most fatal brain tumors, is associated with a dismal prognosis and an extremely short overall survival. We previously reported that the overexpressed transient receptor potential channel TRPM7 is an essential glioblastoma regulator. Accumulating evidence suggests that long noncoding RNAs (lncRNAs) play an important role in glioma's initiation and progression. However, the function of lncRNA, HOX transcript antisense intergenic RNA (HOTAIR) mediated by TRPM7 in glioma remains unclear. In this study, HOTAIR expression was found to be positively regulated by TRPM7, significantly upregulated in glioma tissues, and is a poor prognosis factor for glioma patients. Moreover, reduced HOTAIR expression impeded the proliferation and invasion of glioma cells. Mechanistically, HOTAIR directly interacted with miR-301a-3p, and downregulation of miR-301a-3p efficiently reversed FOSL1 suppression induced by siRNA HOTAIR, which implied that HOTAIR positively regulated FOSL1 level through sponging miR-301a-3p and played an oncogenic role in glioma progression. In contrast to HOTAIR's role, miR-301a-3p alone served as a tumor suppressor to decrease glioma cell viability and migration/invasion. In agreement with HOTAIR's role, FOSL1 functioned as a tumorigenic gene in glioma pathogenesis, which was highly expressed in glioma tissues, and was shown to be an unfavorable prognostic factor for glioma patients. Mechanically, FOSL1 inhibition by siRNA FOSL1 efficiently rescued the oncogenic-like phenotypes caused by the miR-301a-3p inhibitor in glioma pathogenesis. SIGNIFICANCE: Our study elucidated the role of TRPM7-mediated HOTAIR as a miRNA sponge to target downstream FOSL1 oncogene and therefore consequently contribute to gliomagenesis, which shed new light on TRPM7/lncRNA-directed diagnostic and therapeutic approach in glioma.
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Szabó CL, Szabó B, Sebák F, Bermel W, Tantos A, Bodor A. The Disordered EZH2 Loop: Atomic Level Characterization by 1H N- and 1H α-Detected NMR Approaches, Interaction with the Long Noncoding HOTAIR RNA. Int J Mol Sci 2022; 23:6150. [PMID: 35682829 DOI: 10.3390/ijms23116150] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 05/26/2022] [Accepted: 05/27/2022] [Indexed: 02/06/2023] Open
Abstract
The 96-residue-long loop of EZH2 is proposed to play a role in the interaction with long non-coding RNAs (lncRNAs) and to contribute to EZH2 recruitment to the chromatin. However, molecular details of RNA recognition have not been described so far. Cellular studies have suggested that phosphorylation of the Thr345 residue localized in this loop influences RNA binding; however, no mechanistic explanation has been offered. To address these issues, a systematic NMR study was performed. As the 1HN-detected NMR approach presents many challenges under physiological conditions, our earlier developed, as well as improved, 1Hα-detected experiments were used. As a result of the successful resonance assignment, the obtained chemical shift values indicate the highly disordered nature of the EZH2 loop, with some nascent helical tendency in the Ser407–Ser412 region. Further investigations conducted on the phosphomimetic mutant EZH2T345D showed that the mutation has only a local effect, and that the loop remains disordered. On the other hand, the mutation influences the cis/trans Pro346 equilibrium. Interactions of both the wild-type and the phosphomimetic mutant with the lncRNA HOTAIR140 (1–140 nt) highlight that the Thr367–Ser375 region is affected. This segment does not resemble any of the previously reported RNA-binding motifs, therefore the identified binding region is unique. As no structural changes occur in the EZH2 loop upon RNA binding, we can consider the protein–RNA interaction as a “fuzzy” complex.
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Ismail NM, Toraih EA, Almars AI, Al Ageeli E, Fawzy MS, Maher SA. Genotype Triad for HOTAIR rs10783618, LINC-ROR rs1942347, and MALAT1 rs3200401 as Molecular Markers in Systemic Lupus Erythematous. Diagnostics (Basel) 2022; 12. [PMID: 35626352 DOI: 10.3390/diagnostics12051197] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 05/04/2022] [Accepted: 05/06/2022] [Indexed: 11/17/2022] Open
Abstract
Accumulating evidence supports the implication of long non-coding RNAs (lncRNAs) in autoimmune diseases, including systemic lupus erythematosus (SLE). LncRNA variants could impact the development and/or outcome of the disease with variable diagnostic/prognostic utility in the clinic. We aimed to explore the contribution of HOTAIR (rs10783618), LINC-ROR (rs1942347), and MALAT1 (rs3200401) variants to SLE susceptibility and/or severity in 163 SLE patients and age-/sex-matched controls using real-time TaqMan allelic discrimination PCR. HOTAIR rs10783618*C/C was associated with a 77% increased risk of SLE (OR = 1.77, 95%CI = 1.09−2.87, p = 0.020) under the recessive model. Similarly, MALAT1 rs3200401*T/T carriers were three times more likely to develop SLE (OR = 2.89, 95%CI = 1.42−5.90) under the recessive model. While the rs3200401*T/C genotype was associated with a 49−57% decreased risk of SLE under codominant (OR = 0.51, 95%CI = 0.31−0.82, p < 0.001) and over-dominant (OR = 0.43, 95%CI = 0.27−0.68, p < 0.001) models. LINC-ROR rs1942347*A/A patients were more likely to have a positive family history of SLE. At the same time, HOTAIR rs10783618*C/C was associated with a higher frequency of arthritis (p = 0.001) and the presence of oral ulcers (p = 0.002), while patients carrying rs10783618*T/T genotype were more likely to develop hair loss (p < 0.001), weight loss (p = 0.001), and neurological symptoms (p = 0.003). In conclusion, the studied lncRNAs, HOTAIR, and MALAT1 gene polymorphisms confer susceptibility for SLE, providing a potential theoretical basis for their clinical translation in SLE disease.
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Erdos E, Divoux A, Sandor K, Halasz L, Smith SR, Osborne TF. Unique role for lncRNA HOTAIR in defining depot-specific gene expression patterns in human adipose-derived stem cells. Genes Dev 2022; 36:566-581. [PMID: 35618313 PMCID: PMC9186385 DOI: 10.1101/gad.349393.122] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 05/12/2022] [Indexed: 01/12/2023]
Abstract
In this study, Erdos et al. investigated the role of HOX transcript antisense intergenic RNA (HOTAIR) in adipose tissue biology. Using three different approaches (silencing of HOTAIR in GF human adipose-derived stem cells [GF hASCs], overexpression of HOTAIR in ABD hASCs, and ChIRP-seq) to localize HOTAIR binding in GF hASC chromatin, they found that HOTAIR binds and modulates expression, both positively and negatively, of genes involved in adipose tissue-specific pathways, including adipogenesis, and demonstrate a unique function for HOTAIR in hASC depot-specific regulation of gene expression. Accumulation of fat above the waist is an important risk factor in developing obesity-related comorbidities independently of BMI or total fat mass. Deciphering the gene regulatory programs of the adipose tissue precursor cells within upper body or abdominal (ABD) and lower body or gluteofemoral (GF) depots is important to understand their differential capacity for lipid accumulation, maturation, and disease risk. Previous studies identified the HOX transcript antisense intergenic RNA (HOTAIR) as a GF-specific lncRNA; however, its role in adipose tissue biology is still unclear. Using three different approaches (silencing of HOTAIR in GF human adipose-derived stem cells [GF hASCs], overexpression of HOTAIR in ABD hASCs, and ChIRP-seq) to localize HOTAIR binding in GF hASC chromatin, we found that HOTAIR binds and modulates expression, both positively and negatively, of genes involved in adipose tissue-specific pathways, including adipogenesis. We further demonstrate a direct interaction between HOTAIR and genes with high RNAPII binding in their gene bodies, especially at their 3′ ends or transcription end sites. Computational analysis suggests HOTAIR binds preferentially to the 3′ ends of genes containing predicted strong RNA–RNA interactions with HOTAIR. Together, these results reveal a unique function for HOTAIR in hASC depot-specific regulation of gene expression.
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Affiliation(s)
- Edina Erdos
- Division of Diabetes Endocrinology and Metabolism, Johns Hopkins University School of Medicine; Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida 33701, USA.,Department of Medicine, Johns Hopkins University School of Medicine; Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida 33701, USA.,Department of Biological Chemistry, Johns Hopkins University School of Medicine; Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida 33701, USA.,Department of Pediatrics, Johns Hopkins University School of Medicine; Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida 33701, USA
| | - Adeline Divoux
- Translational Research Institute, AdventHealth, Orlando, Florida 32804, USA
| | - Katalin Sandor
- Division of Diabetes Endocrinology and Metabolism, Johns Hopkins University School of Medicine; Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida 33701, USA.,Department of Medicine, Johns Hopkins University School of Medicine; Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida 33701, USA.,Department of Biological Chemistry, Johns Hopkins University School of Medicine; Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida 33701, USA.,Department of Pediatrics, Johns Hopkins University School of Medicine; Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida 33701, USA
| | - Laszlo Halasz
- Division of Diabetes Endocrinology and Metabolism, Johns Hopkins University School of Medicine; Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida 33701, USA.,Department of Medicine, Johns Hopkins University School of Medicine; Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida 33701, USA.,Department of Biological Chemistry, Johns Hopkins University School of Medicine; Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida 33701, USA.,Department of Pediatrics, Johns Hopkins University School of Medicine; Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida 33701, USA
| | - Steven R Smith
- Translational Research Institute, AdventHealth, Orlando, Florida 32804, USA
| | - Timothy F Osborne
- Division of Diabetes Endocrinology and Metabolism, Johns Hopkins University School of Medicine; Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida 33701, USA.,Department of Medicine, Johns Hopkins University School of Medicine; Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida 33701, USA.,Department of Biological Chemistry, Johns Hopkins University School of Medicine; Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida 33701, USA.,Department of Pediatrics, Johns Hopkins University School of Medicine; Institute for Fundamental Biomedical Research, Johns Hopkins All Children's Hospital, St. Petersburg, Florida 33701, USA
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Wu W, Wang L, Li S. Hox transcript antisense RNA knockdown inhibits osteosarcoma progression by regulating the phosphoinositide 3-kinase/AKT pathway through the microRNA miR-6888-3p/spleen tyrosine kinase axis. Bioengineered 2022; 13:9397-9410. [PMID: 35435107 PMCID: PMC9161905 DOI: 10.1080/21655979.2022.2059614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Long non-coding RNA HOX transcript antisense RNA (lncRNA HOTAIR) is thought to be a key regulator of the occurrence and development of osteosarcoma (OS). The expression of HOTAIR, microRNA miR-6888-3p, spleen tyrosine kinase (SYK), and phosphoinositide 3-kinase/AKT (PI3K/AKT) pathway-related proteins in OS was detected by quantitative reverse transcription-PCR (qRT-PCR) and western blotting. Changes in the proliferation and migration of OS cells were detected by Cell Counting Kit-8 (CCK-8) and transwell assays after the knockdown of HOTAIR, miR-6888-3p, or SYK. Luciferase assays, RNA immunoprecipitation (RIP), and RNA pull-down assays were used to detect the relationship between miR-6888-3p and HOTAIR or SYK. We found that HOTAIR and SYK were highly expressed in OS, whereas miR-6888-3p expression was low. In addition, downregulation of HOTAIR or SYK significantly inhibited the growth and migration of OS cells and the PI3K/AKT pathway, both in vitro and in vivo. Additionally, downregulation of miR-6888-3p promoted the proliferation and migration of OS cells and activated the PI3K/AKT pathway. Mechanistically, these results suggest that the HOTAIR sponge, miR-6888-3p, regulates SYK expression. To summarize, HOTAIR regulates SYK by acting on miR-6888-3p, thereby promoting the proliferation and migration of OS cells.
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Affiliation(s)
- Wei Wu
- College of Integration of Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou, Sichuan, China.,Department of Orthopedics, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan, China
| | - Linxiu Wang
- Department of Orthopedics, The Second Affiliated Hospital of Chengdu Medical College, China National Nuclear Corporation 416 Hospital, Chengdu, Sichuan, China
| | - Sen Li
- Department of Spinal Surgery, Chinese Medicine Hospital Affiliated to Southwest Medical University, Luzhou, Sichuan, China
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Kong X, Fei Q, Pan C, Jin J, Zheng J, Wu D, Li H, Huang X. LncRNA HOTAIR promotes proliferation and suppresses apoptosis of mouse spermatogonium GC-1 cells by sponging miR-761 to modulate NANOS2 expression. In Vitro Cell Dev Biol Anim 2022; 58:295-306. [PMID: 35426065 DOI: 10.1007/s11626-022-00657-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 02/06/2022] [Indexed: 12/12/2022]
Abstract
LncRNA HOX antisense intergenic RNA (HOTAIR) can regulate cancer-related gene expression and promote stem cell and tumor cell proliferation via mechanisms including the competing endogenous RNA (ceRNA) mechanism. HOTAIR is abundantly expressed in the genital tubercle of E11.5, E12.5, and E13.5 embryos, whereas it became barely detectable at E13.5 and expressed again in adult mouse testis. However, the underlying function and mechanism of HOTAIR in spermatogenesis have not been elucidated. Interestingly, other researchers reported that the function of gene Nanos C2HC-Type Zinc Finger 2 (nanos2) includes the maintenance of both the primordial germ cells (PGCs) and germline stem cells, and Nanos2 protein and transcripts (NANOS2) were detected only in PGCs from day E11.5 and undifferentiated spermatogonia in spermatogenesis. We therefore investigated the relationship between HOTAIR and NANOS2 in maintaining spermatogonial stem cell population. We found that, compared to the adult mouse, the expression levels of HOTAIR and NANOS2 in embryo mouse were significantly higher and miR-761expression level was lower. In mouse GC-1 spermatogonia cells, overexpression of miRNA-761 significantly inhibited the expression of NANOS2 and HOTAIR, suppressed the proliferation, and promotes apoptosis of cells. Knock down and overexpression of HOTAIR indicated that HOTAIR expression was positively correlated with NANOS2 expression; overexpressed HOTAIR could promote proliferation and suppresses apoptosis of GC-1 cells. By a rescue experiment and dual luciferase reporter assay, miR-761 was identified as a direct target of HOTAIR, and NANOS2 was identified as the direct target of miR-761. The above results indicate that HOTAIR promotes proliferation and suppresses apoptosis of mouse spermatogonium GC-1 cells by sponging miR-761 to modulate NANOS2 expression. Our findings elucidate one of possible mechanisms and importance of HOTAIR in maintaining spermatogonial stem cell population, and provide new candidate genes and possible pathogenesis for male infertility.
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