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Wen X, Hou Y, Zhou L, Fang X. LINC00969 inhibits proliferation with metastasis of breast cancer by regulating phosphorylation of PI3K/AKT and ILP2 expression through HOXD8. PeerJ 2023; 11:e16679. [PMID: 38130932 PMCID: PMC10734406 DOI: 10.7717/peerj.16679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 11/23/2023] [Indexed: 12/23/2023] Open
Abstract
Background Breast cancer (BC) is a malignancy that is inadequately treated and poses a significant global health threat to females. The aberrant expression of long noncoding RNAs (lncRNAs) acts as a complex with a precise regulatory role in BC progression. LINC00969 has been linked to pyroptotic cell death and resistance to gefitinib in lung cancer cells. However, the precise function and regulatory mechanisms of LINC00969 in BC remain largely unexplored. Methods Cell proliferation, migration, and invasion of BC cells were evaluated using CCK-8 and Transwell assays. Western blotting was employed to analyze the protein expression levels of HOXD8, ILP2, PI3K, t-AKT, and p-AKT. Results LINC00969 was drastically reduced in BC tissues LINC00969 overexpression markedly suppressed proliferation, migration, and invasion, and blocked PI3K and p-AKT protein expression in MCF-7 cells. Activation of the PI3K/AKT pathway reversed the suppressive effect of LINC0096 overexpression on the proliferation, migration, and invasion of MCF-7 cells. Moreover, LINC00969 overexpression enhanced HOXD8 and blocked ILP2 protein expression in MCF-7 cells. In contrast, activating the PI3K/AKT pathway had no effect on HOXD8 and blocked ILP2 protein expression in MCF-7 cells overexpressing LINC00969. HOXD8 knockdown enhanced ILP2, PI3K, and p-AKT protein expression, and the proliferation, migration, and invasion of MCF-7 cells co-transfected with si-HOXD8 and ov-LINC00969. LINC00969 regulated HOXD8 via binding to miR-425-5p. Conclusion LINC00969 inhibits the proliferation and metastasis of BC cells by regulating PI3K/AKT phosphorylation through HOXD8/ILP2.
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Affiliation(s)
- Xiaoyun Wen
- Clinical Laboratory, The First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Ya Hou
- The First School of Clinical Medicine,Gannan Medical University, Ganzhou, China
| | - Liang Zhou
- The First School of Clinical Medicine,Gannan Medical University, Ganzhou, China
| | - Xiansong Fang
- Blood transfusion department,The First Affiliated Hospital of Gannan Medical University, Ganzhou, China
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Li Z, Liu Q. The Oncogenic Role of KLF7 in Colon Adenocarcinoma and Therapeutic Perspectives. Int J Genomics 2023; 2023:5520926. [PMID: 38116138 PMCID: PMC10730248 DOI: 10.1155/2023/5520926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 10/02/2023] [Accepted: 11/16/2023] [Indexed: 12/21/2023] Open
Abstract
Colon adenocarcinoma, a highly prevalent and aggressive form of colorectal cancer, necessitates a comprehensive understanding of its molecular mechanisms to identify potential therapeutic targets. The Krüppel-like factor 7 (KLF7), a transcription factor, has been associated with various malignancies, yet its specific role in colon adenocarcinoma remains largely unexplored. Here, we aimed to determine the expression and functional significance of KLF7 in colon adenocarcinoma. Our findings revealed a significant upregulation of KLF7 expression in colon adenocarcinoma tissues compared to adjacent normal tissues. Moreover, elevated KLF7 expression correlated with advanced tumor stage, lymph node metastasis, and poor overall survival in colon adenocarcinoma patients. Functional assays demonstrated that silencing KLF7 resulted in reduced cell proliferation, migration, and invasion, indicating its involvement in promoting tumor growth and metastasis. Additionally, we identified potential downstream targets of KLF7, including genes associated with cell cycle regulation and epithelial-mesenchymal transition. These results underscore the tumor-promoting role of KLF7 in colon adenocarcinoma, positioning it as a potential prognostic biomarker and therapeutic target for this aggressive disease.
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Affiliation(s)
- Zhenjia Li
- Department of Digestive Surgery, Shanghai Songjiang District Central Hospital, Shanghai 201600, China
| | - Qi Liu
- Department of Digestive Surgery, Shanghai Songjiang District Central Hospital, Shanghai 201600, China
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Dong H, Yang C, Chen X, Sun H, He X, Wang W. Breast cancer-derived exosomal lncRNA SNHG14 induces normal fibroblast activation to cancer-associated fibroblasts via the EBF1/FAM171A1 axis. Breast Cancer 2023; 30:1028-1040. [PMID: 37653187 DOI: 10.1007/s12282-023-01496-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 08/16/2023] [Indexed: 09/02/2023]
Abstract
BACKGROUND Exosomes released from cancer cells can activate normal fibroblasts (NFs) into cancer-associated fibroblasts (CAFs), which promotes cancer development. Our study aims to explore the role and potential mechanisms of breast cancer exosomes-delivered long non-coding RNA (lncRNA) SNHG14 in regulating CAFs transformation. METHODS Adjacent normal tissues, cancerous and serum specimens were gathered in breast cancer patients. Exosomes and NFs were separated from breast cancer cells (SKBR-3) and normal tissues of patients, respectively. Cell viability and migration were measured with CCK-8 and Transwell assays. CAFs markers, fibroblast activation protein (FAP) and a-smooth muscle actin (α-SMA) were detected for assessing CAFs activation. The interactions between molecules were evaluated using dual luciferase reporter assay, RNA immunoprecipitation and chromatin immunoprecipitation. RESULTS SNHG14 and FAM171A1 were upregulated in breast cancer. Exosomes secreted by SKBR-3 cells induced NFs activation in CAFs, as indicated by upregulating CAFs marker levels and facilitated cell viability and migration. Exosomal SNHG14 silencing in SKBR-3 cells inhibited CAFs activation. SNHG14 positively regulated FAM171A1 expression through EBF1. FAM171A1 overexpression eliminated the inhibition effect of exosomal SNHG14 silencing in CAFs transformation. CONCLUSION Breast cancer-derived exosomal SNHG14 contributed to NFs transformation into CAFs by the EBF1/FAM171A1 axis.
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Affiliation(s)
- Huaying Dong
- Department of General Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, No 19, Xiuhua Road, Xiuying District, Haikou, 570311, Hainan Province, People's Republic of China
| | - Changcheng Yang
- Department of Oncology, The First Affiliated Hospital of Hainan Medical University, Haikou, 570102, Hainan Province, People's Republic of China
| | - Xiang Chen
- Department of General Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, No 19, Xiuhua Road, Xiuying District, Haikou, 570311, Hainan Province, People's Republic of China
| | - Hening Sun
- Department of General Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, No 19, Xiuhua Road, Xiuying District, Haikou, 570311, Hainan Province, People's Republic of China
| | - Xionghui He
- Department of General Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, No 19, Xiuhua Road, Xiuying District, Haikou, 570311, Hainan Province, People's Republic of China
| | - Wei Wang
- Department of General Surgery, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, No 19, Xiuhua Road, Xiuying District, Haikou, 570311, Hainan Province, People's Republic of China.
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Huldani H, Gandla K, Asiri M, Romero-Parra RM, Alsalamy A, Hjazi A, Najm MAA, Fawaz A, Hussien BM, Singh R. A comprehensive insight into the role of small nucleolar RNAs (snoRNAs) and SNHGs in human cancers. Pathol Res Pract 2023; 249:154679. [PMID: 37567032 DOI: 10.1016/j.prp.2023.154679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/04/2023] [Accepted: 07/07/2023] [Indexed: 08/13/2023]
Abstract
Long non-coding RNAs (lncRNAs), which comprise most non-coding RNAs (ncRNAs), have recently become a focus of cancer research. How many functional ncRNAs exist is still a matter of debate. Although insufficient evidence supports that most lncRNAs function as transcriptional by-products, it is widely known that an increasing number of lncRNAs play essential roles in cells. Small nucleolar RNAs (snoRNAs), 60-300 nucleotides in length, have been better studied than long non-coding RNAs (lncRNAs) and are predominantly present in the nucleolus. Most snoRNAs are encoded in introns of protein- and non-protein-coding genes called small nucleolar RNA host genes (SNHGs). In this article, we explore the biology and characteristics of SNHGs and their role in developing human malignancies. In addition, we provide an update on the ability of these snoRNAs to serve as prognostic and diagnostic variables in various forms of cancer.
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Affiliation(s)
- Huldani Huldani
- Department of Physiology, Faculty of Medicine, Lambung Mangkurat University, Banjarmasin, South Kalimantan, Indonesia
| | - Kumaraswamy Gandla
- Department of Pharmaceutical Analysis, Chaitanya Deemed to be University, Hanamkonda, India.
| | - Mohammed Asiri
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | | | - Ali Alsalamy
- College of Medical Technology, Imam Ja'afar Al-Sadiq University, Al-Muthanna 66002, Iraq
| | - Ahmed Hjazi
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Mazin A A Najm
- Pharmaceutical Chemistry Department, College of Pharmacy, Al-Ayen University, Thi-Qar, Iraq
| | - Albab Fawaz
- Medical Technical College, Al-Farahidi University, Baghdad, Iraq
| | - Beneen M Hussien
- Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq
| | - Rajesh Singh
- Uttaranchal Institute of Technology, Uttaranchal University, Dehradun 248007, India
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Agrawal D, Kumari R, Ratre P, Rehman A, Srivastava RK, Reszka E, Goryacheva IY, Mishra PK. Cell-free circulating miRNAs-lncRNAs-mRNAs as predictive markers for breast cancer risk assessment in women exposed to indoor air pollution. CASE STUDIES IN CHEMICAL AND ENVIRONMENTAL ENGINEERING 2022; 6:100267. [DOI: 10.1016/j.cscee.2022.100267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/03/2023]
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Expression and Clinical Significance of Serum Krüppel-Like Factor 7 (KLF7) in NSCLC Patients. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:9270789. [PMID: 35936369 PMCID: PMC9348920 DOI: 10.1155/2022/9270789] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 07/09/2022] [Indexed: 11/18/2022]
Abstract
Nonsmall cell lung cancer (NSCLC) is a serious threat to the life and health of patients with high incidence rate and mortality. The present research was to assess the relationship between the serum Krüppel-like factor 7 (KLF7) level and the recurrence and metastasis of NSCLC patients. 150 patients with NSCLC treated by thoracoscopic radical resection of lung cancer in our hospital from January 2016 to February 2017 were selected. As the control group, 148 healthy people who went to the hospital for physical examination in the same period were screened. The expression levels of serum KLF7 in the observation group and the control group were compared and analyzed. According to the level of KLF7 expression, the patients in the observation group were divided into KLF7 high expression group (≥258.6 ng/L, n =75) and KLF7 low expression group (<258.6 ng/L, n =75). The 3-year recurrence and metastasis rate of patients in each group was compared and analyzed. It was found the concentration of serum KLF7 in peripheral blood of NSCLC (2.25 ± 0.65) ng/ml was significantly higher than that in healthy population (1.42 ± 0.38) ng/ml (P < 0.05). The expression level of serum KLF7 was not related to gender, age, smoking history, and tumor diameter of NSCLC patients (P > 0.05), but related to the degree of differentiation and TNM stage of NSCLC patients (P < 0.05). Univariate analysis showed that the degree of differentiation, TNM stage, and KLF7 were significantly correlated with 3-year recurrence and metastasis of NSCLC patients (P < 0.05). Cox regression analysis showed that low degree of differentiation, TNM stage IIIa, and KLF7 were independent risk factors for recurrence and metastasis in NSCLC patients in 3 years (P < 0.05). Taken together, the expression level of serum KLF7 in patients with NSCLC is significantly increased, which is an independent risk factor for recurrence and metastasis in 3 years, and is worthy of clinical application.
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