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Yang S, Sun Y, Liu W, Zhang Y, Sun G, Xiang B, Yang J. Exosomes in Glioma: Unraveling Their Roles in Progression, Diagnosis, and Therapy. Cancers (Basel) 2024; 16:823. [PMID: 38398214 PMCID: PMC10887132 DOI: 10.3390/cancers16040823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 01/29/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
Gliomas, the most prevalent primary malignant brain tumors, present a challenging prognosis even after undergoing surgery, radiation, and chemotherapy. Exosomes, nano-sized extracellular vesicles secreted by various cells, play a pivotal role in glioma progression and contribute to resistance against chemotherapy and radiotherapy by facilitating the transportation of biological molecules and promoting intercellular communication within the tumor microenvironment. Moreover, exosomes exhibit the remarkable ability to traverse the blood-brain barrier, positioning them as potent carriers for therapeutic delivery. These attributes hold promise for enhancing glioma diagnosis, prognosis, and treatment. Recent years have witnessed significant advancements in exosome research within the realm of tumors. In this article, we primarily focus on elucidating the role of exosomes in glioma development, highlighting the latest breakthroughs in therapeutic and diagnostic approaches, and outlining prospective directions for future research.
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Affiliation(s)
- Song Yang
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Yumeng Sun
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Wei Liu
- Department of Immunology, College of Basic Medicine, Hebei Medical University, Shijiazhuang 050017, China
| | - Yi Zhang
- Department of Cancer Genetics and Epigenetics, Beckman Research Institute, City of Hope Cancer Center, Duarte, CA 91010, USA
| | - Guozhu Sun
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Bai Xiang
- College of Pharmacy, Hebei Medical University, Shijiazhuang 050000, China
| | - Jiankai Yang
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
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Nag S, Bhattacharya B, Dutta S, Mandal D, Mukherjee S, Anand K, Eswaramoorthy R, Thorat N, Jha SK, Gorai S. Clinical Theranostics Trademark of Exosome in Glioblastoma Metastasis. ACS Biomater Sci Eng 2023; 9:5205-5221. [PMID: 37578350 DOI: 10.1021/acsbiomaterials.3c00212] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Glioblastoma (GBM) is an aggressive type of cancer that has led to the death of a large population. The traditional approach fails to develop a solution for GBM's suffering life. Extensive research into tumor microenvironments (TME) indicates that TME extracellular vesicles (EVs) play a vital role in cancer development and progression. EVs are classified into microvacuoles, apoptotic bodies, and exosomes. Exosomes are the most highlighted domains in cancer research. GBM cell-derived exosomes participate in multiple cancer progression events such as immune suppression, angiogenesis, premetastatic niche formation (PMN), ECM (extracellular matrix), EMT (epithelial-to-mesenchymal transition), metastasis, cancer stem cell development and therapeutic and drug resistance. GBM exosomes also carry the signature of a glioblastoma-related status. The exosome-based GBM examination is part of the new generation of liquid biopsy. It also solved early diagnostic limitations in GBM. Traditional therapeutic approaches do not cross the blood-brain barrier (BBB). Exosomes are a game changer in GBM treatment and it is emerging as a potential platform for effective, efficient, and specific therapeutic development. In this review, we have explored the exosome-GBM interlink, the clinical impact of exosomes on GBM biomarkers, the therapeutics signature of exosomes in GBM, exosome-based research challenges, and future directions in GBM. Therefore, the GBM-derived exosomes offer unique therapeutic opportunities, which are currently under preclinical and clinical testing.
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Affiliation(s)
- Sagnik Nag
- Department of Biosciences, School of Biosciences & Technology, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu 632014, India
| | - Bikramjit Bhattacharya
- Department of Applied Microbiology, School of Biosciences and Technology, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu 632014, India
| | - Swagata Dutta
- Department of Agricultural and food Engineering, IIT Kharagpur, Kharagpur, West Bengal 721302, India
| | - Debashmita Mandal
- Department of Biotechnology, Maulana Abul Kalam Azad University of Technology (MAKAUT), Haringhata, Nadia, West Bengal 741249, India
| | - Sayantanee Mukherjee
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala 682041, India
| | - Krishnan Anand
- Department of Chemical Pathology, School of Pathology, Faculty of Health Sciences, University of the Free State, Bloemfontein, 9300, South Africa
| | - Rajalakshmanan Eswaramoorthy
- Department of Biomaterials, Centre of Molecular Medicine and Diagnostics (COMManD), Saveetha Dental College and Hospitals, Saveetha institute of Medical and Technical sciences (SIMATS) Chennai 600077, India
| | - Nanasaheb Thorat
- Limerick Digital Cancer Research Centre and Department of Physics, Bernal Institute, University of Limerick, Castletroy, Co. Limerick, Limerick V94T9PX, Ireland
| | - Saurabh Kumar Jha
- Department of Biotechnology, School of Engineering & Technology (SET), Sharda University, Knowledge Park-III, Institutional Area, Greater Noida 201310, India
- Department of Biotechnology Engineering and Food Technology, Chandigarh University, Mohali 140413, India
- Department of Biotechnology, School of Applied and Life Sciences (SALS), Uttaranchal University, Dehradun 248007, India
| | - Sukhamoy Gorai
- Rush University Medical Center, 1620 W Harrison Street, Chicago, Illinois 60612, United States
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Nalavade R, Singh M. Intracellular Compartmentalization: A Key Determinant of MicroRNA Functions. Microrna 2023; 12:114-130. [PMID: 37638608 DOI: 10.2174/2211536612666230330184006] [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: 11/24/2022] [Revised: 12/26/2022] [Accepted: 01/19/2023] [Indexed: 08/29/2023]
Abstract
Being an integral part of the eukaryotic transcriptome, miRNAs are regarded as vital regulators of diverse developmental and physiological processes. Clearly, miRNA activity is kept in check by various regulatory mechanisms that control their biogenesis and decay pathways. With the increasing technical depth of RNA profiling technologies, novel insights have unravelled the spatial diversity exhibited by miRNAs inside a cell. Compartmentalization of miRNAs adds complexity to the regulatory circuits of miRNA expression, thereby providing superior control over the miRNA function. This review provides a bird's eye view of miRNAs expressed in different subcellular locations, thus affecting the gene regulatory pathways therein. Occurrence of miRNAs in diverse intracellular locales also reveals various unconventional roles played by miRNAs in different cellular organelles and expands the scope of miRNA functions beyond their traditionally known repressive activities.
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Affiliation(s)
- Rohit Nalavade
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India
| | - Mohini Singh
- Department of Life Sciences, Sharda School of Basic Sciences and Research, Sharda University, Greater Noida, India
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Giansanti MG, Piergentili R. Linking GOLPH3 and Extracellular Vesicles Content-a Potential New Route in Cancer Physiopathology and a Promising Therapeutic Target is in Sight? Technol Cancer Res Treat 2022; 21:15330338221135724. [PMID: 36320176 PMCID: PMC9630892 DOI: 10.1177/15330338221135724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Golgi phosphoprotein 3 (GOLPH3), a highly conserved phosphatidylinositol 4-phosphate effector, is required for maintenance of Golgi architecture, vesicle trafficking, and Golgi glycosylation. GOLPH3 overexpression has been reported in several human solid cancers, including glioblastoma, breast cancer, colorectal cancer, nonsmall cell lung cancer, epithelial ovarian cancer, prostate cancer, gastric cancer, and hepatocellular carcinoma. Although the molecular mechanisms that link GOLPH3 to tumorigenesis require further investigation, it is likely that GOLPH3 may act by controlling the intracellular movement of key oncogenic molecules, between the Golgi compartments and/or between the Golgi and the endoplasmic reticulum. Indeed, numerous evidence indicates that deregulation of intracellular vesicle trafficking contributes to several aspects of cancer phenotypes. However, a direct and clear link between extracellular vesicle movements and GOLPH3 is still missing. In the past years several lines of evidence have implicated GOLPH3 in the regulation of extracellular vesicle content. Specifically, a new role for GOLPH3 has emerged in controlling the internalization of exosomes containing either oncogenic proteins or noncoding RNAs, especially micro-RNA. Although far from being elucidated, growing evidence indicates that GOLPH3 does not increase quantitatively the excretion of exosomes, but rather regulates the exosome content. In particular, recent data support a role for GOLPH3 for loading specific oncogenic molecules into the exosomes, driving both tumor malignancy and metastasis formation. Additionally, the older literature indirectly implicates GOLPH3 in cancerogenesis through its function in controlling hepatitis C virus secretion, which in turn is linked to hepatocellular carcinoma formation. Thus, GOLPH3 might promote tumorigenesis in unexpected ways, involving both direct and indirect routes. If these data are further confirmed, the spectrum of action of GOLPH3 in tumor formation will significantly expand, indicating this protein as a strong candidate for targeted cancer therapy.
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Affiliation(s)
| | - Roberto Piergentili
- Istituto di Biologia e Patologia Molecolari del CNR
(CNR-IBPM), Roma, Italy,Roberto Piergentili, Istituto di Biologia e
Patologia Molecolari del CNR (CNR-IBPM), Piazzale Aldo Moro 5, 00185, Roma,
Italy.
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Qin F, Chen G, Yu KN, Yang M, Cao W, Kong P, Peng S, Sun M, Nie L, Han W. Golgi Phosphoprotein 3 Mediates Radiation-Induced Bystander Effect via ERK/EGR1/TNF-α Signal Axis. Antioxidants (Basel) 2022; 11:2172. [PMID: 36358544 PMCID: PMC9686538 DOI: 10.3390/antiox11112172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 07/30/2023] Open
Abstract
The radiation-induced bystander effect (RIBE), an important non-targeted effect of radiation, has been proposed to be associated with irradiation-caused secondary cancers and reproductive damage beyond the irradiation-treated area after radiotherapy. However, the mechanisms for RIBE signal(s) regulation and transduction are not well understood. In the present work, we found that a Golgi protein, GOLPH3, was involved in RIBE transduction. Knocking down GOLPH3 in irradiated cells blocked the generation of the RIBE, whereas re-expression of GOLPH3 in knockdown cells rescued the RIBE. Furthermore, TNF-α was identified as an important intercellular signal molecule in the GOLPH3-mediated RIBE. A novel signal axis, GOLPH3/ERK/EGR1, was discovered to modulate the transcription of TNF-α and determine the level of released TNF-α. Our findings provide new insights into the molecular mechanism of the RIBE and a potential target for RIBE modulation.
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Affiliation(s)
- Feng Qin
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Scinece Island Branch, Graduate School of USTC, Hefei 230026, China
- Institute of Sericultural, Anhui Academy of Agricultural Sciences, Hefei 230061, China
| | - Guodong Chen
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei 230031, China
| | - Kwan Ngok Yu
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong 999077, Hong Kong
- State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon Tong 999077, Hong Kong
| | - Miaomiao Yang
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Scinece Island Branch, Graduate School of USTC, Hefei 230026, China
| | - Wei Cao
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Scinece Island Branch, Graduate School of USTC, Hefei 230026, China
| | - Peizhong Kong
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - Shengjie Peng
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Scinece Island Branch, Graduate School of USTC, Hefei 230026, China
| | - Mingyu Sun
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Scinece Island Branch, Graduate School of USTC, Hefei 230026, China
| | - Lili Nie
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Institute of Sericultural, Anhui Academy of Agricultural Sciences, Hefei 230061, China
| | - Wei Han
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- Institute of Sericultural, Anhui Academy of Agricultural Sciences, Hefei 230061, China
- Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions and School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou 215006, China
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Liu H, Qi L, Tang X, Tan S, Gou Z, Qi J, Lu X, Li D, Chen C. Astragalus Polysaccharides Affect Glioblastoma Cells Through Targeting miR-34a-5p. J BIOMATER TISS ENG 2022. [DOI: 10.1166/jbt.2022.3048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study discussed Astragalus Polysaccharides (APS)’s effect on the cytobiology of glioma. U87 glioma cells were assigned into control group (U87 cells), miR-34a-5p mimic group (transfected with miR-34a-5p mimic), and APS group (treated with 10 μM APS) followed by
analysis of miR-34a-5p level, cell proliferation and invasion, Caspase3 and SOD activity as well as E-cadherin, Vimentin and survivn expression. APS treatment significantly upregulated miR-34a-5p expression, inhibits cell proliferation and invasion, and promoted cell apoptosis. In addition,
APS also significantly upregulated E-cadherin, downregulated Vimentin and survivn level in glioma cells as well as inhibited ROS generation and increased SOD activity. In conclusion, the level of miR-34a-5a in glioma cells is up-regulated by APS so as to restrain the biological behaviors of
glioma cells, indicating that it might be used as novel agent for the treatment of glioma.
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Affiliation(s)
- Hongjun Liu
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, 637000, China
| | - Lingjun Qi
- Department of Neurosurgery, Daping Hospital, Army Medical University, Chongqing, 400042, China
| | - Xiaoping Tang
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, 637000, China
| | - Shasha Tan
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, 637000, China
| | - Zhangyang Gou
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, 637000, China
| | - Jian Qi
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, 637000, China
| | - Xingyu Lu
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, 637000, China
| | - Dong Li
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, 637000, China
| | - Chunbao Chen
- Department of Neurosurgery, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, 637000, China
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Gao Y, Yin Z, Qi Y, Peng H, Ma W, Wang R, Li W. Golgi phosphoprotein 3 promotes angiogenesis and sorafenib resistance in hepatocellular carcinoma via upregulating exosomal miR-494-3p. Cancer Cell Int 2022; 22:35. [PMID: 35073936 PMCID: PMC8785582 DOI: 10.1186/s12935-022-02462-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 01/11/2022] [Indexed: 12/24/2022] Open
Abstract
Background Golgi phosphoprotein 3 (GOLPH3) has been frequently reported as an oncoprotein in a variety of tumors. However, its role in the cancer-associated intercellular signaling communication has not yet been explored. This study aimed at exploring whether GOLPH3 regulates angiogenesis and sorafenib resistance via exosomal mechanisms in hepatocellular carcinoma (HCC). Methods In vivo assays were performed to elucidate the function of GOLPH3 in HCC. Exosomes of HCC cells were isolated by differential centrifugation, and then measured and quantified using nanoparticle tracking analysis (NTA), BCA assay, western blot (WB), and transmission electron microscopy (TEM). Differentially expressed miRNAs in exosome were analyzed and verified through small RNA sequencing (sRNA-seq) and reverse-transcription polymerase chain reaction (RT-PCR). In addition, a series of in vitro assays were performed to determine the function of exosomes and miR-494-3p in HCC. The candidate target gene of miR-494-3p was identified by bioinformatics prediction and dual-luciferase reporter assay. Results Downregulation of GOLPH3 expression could suppress angiogenesis and enhance sorafenib sensitivity in HCC. Exosomes derived from GOLPH3 overexpression HCC cells promoted the angiogenesis ability of HUVECs and induced sorafenib resistance in HCC cells. A total of 13 differentially expressed miRNAs between negative control and GOLPH3 knockdown group were found in exosomes. However, GOLPH3 was only associated with miR-494-3p expression level in exosomes derived from HCC cells without affecting total cellular miR-494-3p content. Results confirmed that exosomal miR-494-3p promotes angiogenesis of HUVECs and sorafenib resistance in HCC cells through directly targeting PTEN. Conclusions HCC cells with high expression levels of GOLPH3 could promote angiogenesis and sorafenib resistance by enhancing exosomal miR-494-3p secretion to recipient HUVECs and HCC cells, respectively.
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Current landscape of tumor-derived exosomal ncRNAs in glioma progression, detection, and drug resistance. Cell Death Dis 2021; 12:1145. [PMID: 34887381 PMCID: PMC8660802 DOI: 10.1038/s41419-021-04430-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 11/11/2021] [Accepted: 11/19/2021] [Indexed: 02/07/2023]
Abstract
Glioma is the most common and fatal tumor of the central nervous system in humans. Despite advances in surgery, radiotherapy, and chemotherapeutic agents, glioma still has a poor prognosis. The tumor microenvironment (TME) of glioma is of highly complex heterogeneity, which relies on a network-based communication between glioma cells and other stromal cell types. Exosomes are the most common type of naturally occurring extracellular vesicles, ranging in size from 40 to 160 nm, and can serve as carriers for proteins, RNAs, and other biologically active molecules. Recent evidence has shown that glioma-derived exosomes (GDEs) can be integrally detected in the local tissue and circulatory blood samples, and also can be transferred to recipient cells to mediate transmission of genetic information. Non-coding RNAs (ncRNAs) mainly including microRNA, long non-coding RNA, and circular RNA, account for a large portion of the human transcriptome. A broad range of ncRNAs encapsulated in GDEs is reported to exert regulatory functions in various pathophysiological processes of glioma. Herein, this review summarizes the latest findings on the fundamental roles of GDE ncRNAs that have been implicated in glioma behaviors, immunological regulation, diagnosis potential, and treatment resistance, as well as the current limitations and perspectives. Undoubtedly, a thorough understanding of this area will provide comprehensive insights into GDE-based clinical applications for combating gliomas.
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GOLPH3/CKAP4 promotes metastasis and tumorigenicity by enhancing the secretion of exosomal WNT3A in non-small-cell lung cancer. Cell Death Dis 2021; 12:976. [PMID: 34671013 PMCID: PMC8528870 DOI: 10.1038/s41419-021-04265-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 09/30/2021] [Accepted: 10/06/2021] [Indexed: 12/21/2022]
Abstract
Cancer metastasis is the main cause of mortality associated with non-small-cell lung cancer (NSCLC), accounting for up to 70% of deaths among patients. The mechanisms underlying distal metastasis remain largely unknown. Golgi phosphoprotein 3 (GOLPH3) correlates negatively with overall survival in multiple tumors. In this study, we evaluated the function of GOLPH3 in NSCLC distal metastasis. GOLPH3 was expressed at high levels in samples from patients with NSCLC and was positively associated with clinicopathologic characteristics including clinical stage (P < 0.001), T (P = 0.001), N (P = 0.007), and M (P = 0.001) classification. Functionally, Transwell and wound-healing assays suggested that GOLPH3 overexpression enhances NSCLC cell migration and invasion abilities. Tumor-sphere formation and flow cytometry assays demonstrated that GOLPH3 overexpression enhances a stem cell-like phenotype of NSCLC cells. Metastasis models established by tail vein and intracardiac injection confirmed the pro-metastatic function of GOLPH3 in vivo. A subcutaneous tumor formation model confirmed that GOLPH3 overexpression increased the tumorigenicity of NSCLC cells. Mechanistically, gene set enrichment analysis revealed a positive association of GOLPH3 mRNA expression with WNT-activated gene signatures. Luciferase-reporter and nuclear extract assays showed that GOLPH3 overexpression enhances metastasis and tumorigenicity through activation of the WNT/β-catenin pathway. Immunoprecipitation-mass spectrometry and gene ontology analysis demonstrated that GOLPH3 interacts with cytoskeleton-associated protein 4 (CKAP4) in exosome-mediated distal metastasis. We found that GOLPH3 decreased the amount of plasma membrane-localized CKAP4 and increased the amount of exosome-localized CKAP4 to promote the formation of CKAP4-containing exosomes. Furthermore, we demonstrated that CKAP4 binds exosomal WNT3A to enhance its secretion. Therefore, the GOLPH3/CKAP4 axis plays a crucial role in promoting exosomal-WNT3A secretion to enhance and maintain the stem-like phenotype and metastasis in NSCLC, thus indicating the therapeutic potential of GOLPH3 in patients with NSCLC metastasis.
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