1
|
Travis G, McGowan EM, Simpson AM, Marsh DJ, Nassif NT. PTEN, PTENP1, microRNAs, and ceRNA Networks: Precision Targeting in Cancer Therapeutics. Cancers (Basel) 2023; 15:4954. [PMID: 37894321 PMCID: PMC10605164 DOI: 10.3390/cancers15204954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023] Open
Abstract
The phosphatase and tensin homolog deleted on chromosome 10 (PTEN) is a well characterised tumour suppressor, playing a critical role in the maintenance of fundamental cellular processes including cell proliferation, migration, metabolism, and survival. Subtle decreases in cellular levels of PTEN result in the development and progression of cancer, hence there is tight regulation of the expression, activity, and cellular half-life of PTEN at the transcriptional, post-transcriptional, and post-translational levels. PTENP1, the processed pseudogene of PTEN, is an important transcriptional and post-transcriptional regulator of PTEN. PTENP1 expression produces sense and antisense transcripts modulating PTEN expression, in conjunction with miRNAs. Due to the high sequence similarity between PTEN and the PTENP1 sense transcript, the transcripts possess common miRNA binding sites with the potential for PTENP1 to compete for the binding, or 'sponging', of miRNAs that would otherwise target the PTEN transcript. PTENP1 therefore acts as a competitive endogenous RNA (ceRNA), competing with PTEN for the binding of specific miRNAs to alter the abundance of PTEN. Transcription from the antisense strand produces two functionally independent isoforms (PTENP1-AS-α and PTENP1-AS-β), which can regulate PTEN transcription. In this review, we provide an overview of the post-transcriptional regulation of PTEN through interaction with its pseudogene, the cellular miRNA milieu and operation of the ceRNA network. Furthermore, its importance in maintaining cellular integrity and how disruption of this PTEN-miRNA-PTENP1 axis may lead to cancer but also provide novel therapeutic opportunities, is discussed. Precision targeting of PTENP1-miRNA mediated regulation of PTEN may present as a viable alternative therapy.
Collapse
Affiliation(s)
- Glena Travis
- Cancer Biology, Faculty of Science, School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia; (G.T.); (E.M.M.)
| | - Eileen M. McGowan
- Cancer Biology, Faculty of Science, School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia; (G.T.); (E.M.M.)
- Central Laboratory, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China
| | - Ann M. Simpson
- Gene Therapy and Translational Molecular Analysis Laboratory, Faculty of Science, School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia;
| | - Deborah J. Marsh
- Translational Oncology Group, Faculty of Science, School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia;
| | - Najah T. Nassif
- Cancer Biology, Faculty of Science, School of Life Sciences, University of Technology Sydney, Ultimo, NSW 2007, Australia; (G.T.); (E.M.M.)
| |
Collapse
|
2
|
Dou Q, Wang J, Yang Y, Zhuo W. Roles of exosome-derived non-coding RNA in tumor micro-environment and its clinical application. Zhejiang Da Xue Xue Bao Yi Xue Ban 2023; 52:429-438. [PMID: 37643977 PMCID: PMC10495245 DOI: 10.3724/zdxbyxb-2023-0056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 07/20/2023] [Indexed: 08/12/2023]
Abstract
Tumor-derived exosomes play an important role in the tumor micro-environment. The exosome-derived non-coding RNAs are transmitted in the tumor microenvironment in three ways, communication between tumor cells, normal cells affecting tumor cells, and tumor cells affecting normal cells. Through these three ways, exosomal non-coding RNAs are involved in the regulation of tumor progression, affecting tumor angiogenesis, tumor invasiveness, drug resistance, stemness, tumor metabolic repro-gramming and immune escape, resulting in dual roles in promoting or inhibiting tumor development. Exosomes have a membranous structure and their contents are resistant to degradation by extracellular proteases and remain highly stable in body fluids, thus exosome-derived non-coding RNAs are expected to serve as diagnostic and prognostic indicators for a variety of cancers. In addition, exosomes can be used to deliver non-coding RNAs for targeted therapy, or to knock down or modify tumor-promoting non-coding RNAs for tumor therapy. This article reviews the function and communication mechanism of exosomal non-coding RNAs in the tumor microenvironment, including their pathways of action, effects, potential values for tumor biomarkers and treatment targets. This article also points out the issues that need to be further studied in order to promote the progress of extracellular non-coding RNAs in cancer research and their application in tumor diagnosis and treatment.
Collapse
Affiliation(s)
- Qinyi Dou
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou 310058, China.
- The Second Affiliated Hospital, Zhejiang University School of Medicine, Center for Medical Research and Innovation in Digestive System Tumors of the Ministry of Education, Hangzhou 310020, China.
- Zhejiang University Cancer Center, Hangzhou 310058, China.
| | - Jiazheng Wang
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou 310058, China.
- The Second Affiliated Hospital, Zhejiang University School of Medicine, Center for Medical Research and Innovation in Digestive System Tumors of the Ministry of Education, Hangzhou 310020, China.
- Zhejiang University Cancer Center, Hangzhou 310058, China.
| | - Yingshuo Yang
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou 310058, China.
- The Second Affiliated Hospital, Zhejiang University School of Medicine, Center for Medical Research and Innovation in Digestive System Tumors of the Ministry of Education, Hangzhou 310020, China.
- Zhejiang University Cancer Center, Hangzhou 310058, China.
| | - Wei Zhuo
- Department of Cell Biology, Zhejiang University School of Medicine, Hangzhou 310058, China.
- The Second Affiliated Hospital, Zhejiang University School of Medicine, Center for Medical Research and Innovation in Digestive System Tumors of the Ministry of Education, Hangzhou 310020, China.
- Zhejiang University Cancer Center, Hangzhou 310058, China.
| |
Collapse
|
3
|
Xu Y, Sun Y, Song X, Ren J. The mechanisms and diagnostic potential of lncRNAs, miRNAs, and their related signaling pathways in cervical cancer. Front Cell Dev Biol 2023; 11:1170059. [PMID: 37215076 PMCID: PMC10192553 DOI: 10.3389/fcell.2023.1170059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 04/11/2023] [Indexed: 05/24/2023] Open
Abstract
Cervical cancer (CC), the fourth most prevalent type of cancer among women worldwide, is associated with high rates of morbidity and mortality. Due to the long period of latency in CC, most patients are already in the middle to late stages when initially diagnosed, which greatly reduces the clinical cure rate and quality of survival, thus resulting in poor outcomes. In recent years, with continuous exploration in the fields of bioinformatics and molecules, it has been found that ncRNAs, including miRNAs and lncRNAs, without the ability to translate proteins are capable of activating or inhibiting certain signaling pathways by targeting and modulating the level of expression of proteins involved in these signaling pathways. ncRNAs play important roles in assisting with diagnosis, drug administration, and prediction of prognosis during CC progression. As an entry point, the mechanisms of interaction between miRNAs, lncRNAs, and signaling pathways have long been a focus in basic research relating to CC, and numerous experimental studies have confirmed the close relationship of miRNAs, lncRNAs, and signaling pathways with CC development. Against this background, we summarize the latest advances in the involvement of lncRNA- and miRNA-related signaling pathways in the development of CC to provide guidance for CC treatment.
Collapse
|
4
|
Ghafouri-Fard S, Khoshbakht T, Hussen BM, Taheri M, Akbari Dilmaghani N. A review on the role of PTENP1 in human disorders with an especial focus on tumor suppressor role of this lncRNA. Cancer Cell Int 2022; 22:207. [PMID: 35655204 PMCID: PMC9161594 DOI: 10.1186/s12935-022-02625-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 03/24/2022] [Indexed: 11/16/2022] Open
Abstract
PTENP1 is a long non-coding RNA which has been regarded as a pseudogene of the PTEN tumor suppressor gene. However, it has been shown to be a biologically active transcript that can function as a competing endogenous RNA and enhance expression of PTEN protein. This lncRNA has two transcripts, namely PTENP1-202 and PTENP1-202 with sizes of 3996 and 1215 bps, respectively. PTENP1 acts as a sponge for some PETN-targeting miRNAs, such as miR-17, miR-20a, miR-19b, miR-106b, miR-200c, miR-193a-3p, miR-499-5p and miR-214. Besides, it can affect miR-20a/PDCD4, miR-27a-3p/EGR1, miR-17‐5p/SOCS6 and miR-19b/TSC1 axes. This long non-coding RNA participates in the pathoetiology of several types of cancers as well as non-malignant conditions such as alcohol-induced osteopenia, insulin resistance, osteoporosis, sepsis-associated cardiac dysfunction and spinal cord injury. In the current review, we elucidate the role of PTENP1 in human disorders, particularly malignant conditions based on evidence acquired from cell line assays, animal studies and investigations on human samples.
Collapse
|
5
|
Kovalenko TF, Morozova KV, Pavlyukov MS, Anufrieva KS, Bobrov MY, Gamisoniya AM, Ozolinya LA, Dobrokhotova YE, Shakhparonov MI, Patrushev LI. Methylation of the PTENP1 pseudogene as potential epigenetic marker of age-related changes in human endometrium. PLoS One 2021; 16:e0243093. [PMID: 33481830 PMCID: PMC7822536 DOI: 10.1371/journal.pone.0243093] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 11/16/2020] [Indexed: 01/09/2023] Open
Abstract
The processed pseudogene PTENP1 is involved in the regulation of the expression of the PTEN and acts as a tumor suppressor in many types of malignances. In our previous study we showed that PTENP1 methylation is present not only in tumor, but also in normal endometrium tissues of women over 45 years old. Here we used methylation-specific PCR to analyze methylation status of CpG island located near promoter region of PTENP1 in malignant and non-malignant endometrium tissues collected from 236 women of different age groups. To confirm our results, we also analyzed RNA sequencing and microarray data from 431 women with endometrial cancer from TCGA database. We demonstrated that methylation of PTENP1 is significantly increased in older patients. We also found an age-dependent increase in the level of PTENP1 expression in endometrial tissue. According to our data, PTENP1 methylation elevates the level of the pseudogene sense transcript. In turn, a high level of this transcript correlates with a more favorable prognosis in endometrial cancer. The data obtained suggested that PTENP1 methylation is associated with age-related changes in normal and hyperplastic endometrial tissues. We assumed that age-related increase in PTENP1 methylation and subsequent elevation of its expression may serve as a protective mechanism aimed to prevent malignant transformation of endometrial tissue in women during the perimenopause, menopause, and postmenopause periods.
Collapse
Affiliation(s)
- Tatyana F. Kovalenko
- Laboratory of membrane bioenergetics, Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences, Moscow, Russia
- * E-mail:
| | - Ksenia V. Morozova
- Department of Obstetrics and Gynecology, Pirogov Russian National Research Medical University, Moscow, Russia
| | - Marat S. Pavlyukov
- Laboratory of membrane bioenergetics, Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences, Moscow, Russia
| | - Ksenia S. Anufrieva
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
- Laboratory of Cell Biology, Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow, Russia
- Moscow Institute of Physics and Technology (State University), Moscow Region, Russia
| | - Mikhail Yu. Bobrov
- Laboratory of Molecular Pathophysiology, Kulakov Research Center of Obstetrics, Gynecology and Perinatology, Ministry of Healthcare of Russian Federation, Moscow, Russia
| | - Alina M. Gamisoniya
- Laboratory of Molecular Pathophysiology, Kulakov Research Center of Obstetrics, Gynecology and Perinatology, Ministry of Healthcare of Russian Federation, Moscow, Russia
- Laboratory of oxylipins, Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences, Moscow, Russia
| | - Lyudmila A. Ozolinya
- Department of Obstetrics and Gynecology, Pirogov Russian National Research Medical University, Moscow, Russia
| | - Yulia E. Dobrokhotova
- Department of Obstetrics and Gynecology, Pirogov Russian National Research Medical University, Moscow, Russia
| | - Mikhail I. Shakhparonov
- Laboratory of membrane bioenergetics, Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences, Moscow, Russia
| | - Lev I. Patrushev
- Educational & scientific center, Shemyakin–Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences, Moscow, Russia
| |
Collapse
|