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Liu D, Liu L, Li H, Huang Z, Wang Y. Sphingosine kinase 1 counteracts chemosensitivity and immune evasion in diffuse large B cell lymphoma cells via the PI3K/AKT/PD-L1 axis. Int Immunopharmacol 2024; 143:113361. [PMID: 39418735 DOI: 10.1016/j.intimp.2024.113361] [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: 06/02/2024] [Revised: 08/30/2024] [Accepted: 10/05/2024] [Indexed: 10/19/2024]
Abstract
Diffuse large B-cell lymphoma (DLBCL) is a highly aggressive neoplasm of lymphatic system that represent 38-58 % of non-Hodgkin lymphoma. Chemoresistance and immune escape constitute the major obstacles to the treatment of patients. Sphingosine kinase 1 (SphK1) is involved in multiple processes of cancer. Up to now, little research focuses on its function in DLBCL. In the current research, GEPIA and human Protein Atlas databases confirmed high expression of SphK1 in DLBCL tissues. Analogously, increased expression of SphK1 were determined in DLBCL tissues and cells. Intriguingly, knockdown of SphK1 suppressed DLBCL cell viability and increased chemosensitivity to doxorubicin by decreasing cell viability and increasing caspase-3 activity. Reversely, SphK1 elevation facilitated cancer cell resistance to doxorubicin. Furthermore, loss of SphK1 increased the productions of inflammatory cytokine IFN-γ and TNF-α, but reduced IL-10 levels in co-culture model of CD8 + T cells and DLBCL cells. Importantly, SphK1 knockdown enhanced T cell cytotoxicity to DLBCL cells, while its elevation restrained the ability of T cells to kill cancer cells. Concomitantly, targeting SphK1 enhanced the percentage of CD8 + T cells and attenuated co-culture-evoked CD8 + T cell apoptosis, indicating the important roles in T cell escape. Mechanically, SphK1 overexpression enhanced and its knockdown suppressed activation of the PI3K/AKT/PD-L1 pathway. After blockage of this pathway by its antagonist, the beneficial effects of SpHK1 on chemoresistance and immune escape were abrogated. In vivo, targeting SphK1 inhibited tumor growth and enhanced the anti-tumor efficacy of doxorubicin in DLBCL xenograft tumor, concomitant with the inhibition of the PI3K/AKT/PD-L1 signaling. Collectively, SphK1 knockdown counteracted chemoresistance and immune escape from T cell killing by inhibiting the PI3K/AKT/PD-L1 pathway. Therefore, targeting SphK1 may represent a promising therapeutic strategy for overcoming chemoresistance and immune escape in DLBCL.
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Affiliation(s)
- Dan Liu
- Department of Hematology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Longlong Liu
- Department of Hematology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Haiming Li
- Department of Hematology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Zhenqian Huang
- Department of Hematology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China.
| | - Yaya Wang
- Department of Hematology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China.
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Song L, Xu Q, Chen R, Sun W, Zhan J. KLF1 Activates RAC3 to Mediate Fatty Acid Synthesis and Enhance Cisplatin Resistance in Bladder Cancer Cells. Am J Mens Health 2024; 18:15579883241273305. [PMID: 39376007 PMCID: PMC11459471 DOI: 10.1177/15579883241273305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 09/10/2024] [Accepted: 07/05/2024] [Indexed: 10/09/2024] Open
Abstract
While cisplatin remains a frontline treatment for bladder cancer (BCa), the onset of resistance greatly hampers its effectiveness. RAC3 is closely linked to chemoresistance in cancer cells, but its specific role in cisplatin resistance within BCa is still elusive. RAC3 expression in BCa was analyzed using bioinformatics and quantitative polymerase chain reaction (qPCR). The gene set enrichment analysis (GSEA) identified RAC3-enriched pathways and the correlation between RAC3 and fatty acid synthase (FASN), a gene involved in fatty acid synthesis. Potential upstream transcription factors of RAC3 were predicted and their interaction with RAC3 was confirmed via dual-luciferase and chromatin immunoprecipitation (ChIP) assays. T24/DDP, a cisplatin-resistant BCa cell line, was established to probe into the regulatory role of RAC3 in cisplatin resistance. Cell proliferation was evaluated by colony formation and the IC50 values after cisplatin treatment were determined using cell counting kit-8 (CCK-8). The levels of free fatty acids and triglycerides (TGs), as well as the expression of DGAT2 and FASN proteins, were measured to gauge the extent of fatty acid synthesis in cells. Elevated expression of RAC3 was observed in BCa and the cisplatin-resistant BCa cells (T24/DDP). The knockdown of RAC3 within T24/DDP cells was demonstrated to counteract cisplatin resistance. Subsequent analyses identified RAC3 as being notably enriched in the fatty acid synthesis pathway, with Kruppel-like factor 1 (KLF1) emerging as a key upstream regulator. The overexpression of RAC3 was correlated with increased cisplatin resistance in T24/DDP cells, an effect that was mitigated by the addition of the FASN inhibitor, Orlistat. Furthermore, the downregulation of KLF1 suppressed RAC3 expression, disrupted fatty acid synthesis, and attenuated cisplatin resistance in T24/DDP cells. Conversely, the co-overexpression of RAC3 counteracted the effects conferred by KLF1 knockdown. Our study has validated that KLF1 activates RAC3 to mediate fatty acid synthesis and promote cisplatin resistance in BCa, suggesting the KLF1/RAC3 axis as a potential target for combating cisplatin-resistant BCa.
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Affiliation(s)
- Lide Song
- Department of Urology, Zhuji People’s Hospital, Zhuji, China
| | - Qi Xu
- Department of Urology, Zhuji People’s Hospital, Zhuji, China
| | - Rong Chen
- Department of Urology, Zhuji People’s Hospital, Zhuji, China
| | - Wanghong Sun
- Department of Urology, Zhuji People’s Hospital, Zhuji, China
| | - Jianfei Zhan
- Department of Urology, Zhuji People’s Hospital, Zhuji, China
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Wang C, Li Q, Song K, Wang W, Zhang N, Dai L, Di W. Nanoparticle co-delivery of carboplatin and PF543 restores platinum sensitivity in ovarian cancer models through inhibiting platinum-induced pro-survival pathway activation. NANOSCALE ADVANCES 2024; 6:4082-4093. [PMID: 39114142 PMCID: PMC11302180 DOI: 10.1039/d4na00227j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 05/29/2024] [Indexed: 08/10/2024]
Abstract
Resistance to platinum-based chemotherapy is the major cause of poor prognosis and cancer-associated mortality in ovarian cancer patients, so novel therapeutic strategies to restore platinum sensitivity are needed to improve patient outcomes. Sphingosine Kinase (SphK) 1 is involved in regulating multiple pro-survival pathways, key mediators in the sensitivity of tumor cells toward platinum. By encapsulating CBP and the SphK1 inhibitor PF543 in PLGA (poly lactic-co-glycolic acid) nanoparticles, a dual-drug delivery system (C/PNPs) was formed to simultaneously deliver CBP and PF543. The physicochemical characteristics, cell uptake rate and biodistribution behavior of C/PNPs were evaluated. Then the anti-tumor ability of C/PNPs in vitro and in vivo was further investigated. The C/PNPs could deliver CBP and PF543 simultaneously to a platinum-insensitive cell line (SKOV3) both in vitro and in vivo. Furthermore, benefiting from the enhanced permeability and retention (EPR) effect of PLGA NPs, C/PNPs exhibited an improved tumor region accumulation. As a result, a synergistic anti-tumor effect was found in the SKOV3 tumor-bearing mice, with tumor volume inhibiting rates of 84.64% and no side effects in major organs. The mechanistic studies confirmed that the inhibition of SphK1 by PF543 sensitized SKOV3 cells to CBP chemotherapy, partly by inhibiting the CBP-induced activation of pro-survival pathways, including ERK, AKT and STAT3 signaling. Our study reveals that C/PNPs can serve as an efficient dual-drug delivery system to restore platinum sensitivity in ovarian cancer models partly through inhibiting platinum-induced pro-survival pathway activation.
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Affiliation(s)
- Chen Wang
- Department of Obstetrics and Gynecology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai 200127 China
- Shanghai Key Laboratory of Gynecologic Oncology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai 200127 China
| | - Qing Li
- Department of Obstetrics and Gynecology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai 200127 China
- Shanghai Key Laboratory of Gynecologic Oncology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai 200127 China
| | - Keqi Song
- Department of Obstetrics and Gynecology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai 200127 China
- Shanghai Key Laboratory of Gynecologic Oncology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai 200127 China
| | - Wenjing Wang
- Department of Obstetrics and Gynecology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai 200127 China
- Shanghai Key Laboratory of Gynecologic Oncology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai 200127 China
| | - Ning Zhang
- Department of Obstetrics and Gynecology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai 200127 China
- Shanghai Key Laboratory of Gynecologic Oncology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai 200127 China
| | - Lan Dai
- Department of Obstetrics and Gynecology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai 200127 China
- Shanghai Key Laboratory of Gynecologic Oncology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai 200127 China
| | - Wen Di
- Department of Obstetrics and Gynecology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai 200127 China
- Shanghai Key Laboratory of Gynecologic Oncology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai 200127 China
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University Shanghai 200127 China
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Zhang YQ, Li J, Qin Z, Li DM, Ye FZ, Bei SH, Zhang XH, Feng L. METTL5 promotes gastric cancer progression via sphingomyelin metabolism. World J Gastrointest Oncol 2024; 16:1925-1946. [PMID: 38764837 PMCID: PMC11099429 DOI: 10.4251/wjgo.v16.i5.1925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/09/2024] [Accepted: 02/19/2024] [Indexed: 05/09/2024] Open
Abstract
BACKGROUND The treatment of gastric cancer (GC) has caused an enormous social burden worldwide. Accumulating studies have reported that N6-methyladenosine (m6A) is closely related to tumor progression. METTL5 is a m6A methyltransferase that plays a pivotal role in maintaining the metabolic stability of cells. However, its aberrant regulation in GC has not been fully elucidated. AIM To excavate the role of METTL5 in the development of GC. METHODS METTL5 expression and clinicopathological characteristics were analyzed via The Cancer Genome Atlas dataset and further verified via immunohistochemistry, western blotting and real-time quantitative polymerase chain reaction in tissue microarrays and clinical samples. The tumor-promoting effect of METTL5 on HGC-27 and AGS cells was explored in vitro by Cell Counting Kit-8 assays, colony formation assays, scratch healing assays, transwell assays and flow cytometry. The tumor-promoting role of METTL5 in vivo was evaluated in a xenograft tumor model. The EpiQuik m6A RNA Methylation Quantification Kit was used for m6A quantification. Next, liquid chromatography-mass spectrometry was used to evaluate the association between METTL5 and sphingomyelin metabolism, which was confirmed by Enzyme-linked immunosorbent assay and rescue tests. In addition, we investigated whether METTL5 affects the sensitivity of GC cells to cisplatin via colony formation and transwell experiments. RESULTS Our research revealed substantial upregulation of METTL5, which suggested a poor prognosis of GC patients. Increased METTL5 expression indicated distant lymph node metastasis, advanced cancer stage and pathological grade. An increased level of METTL5 correlated with a high degree of m6A methylation. METTL5 markedly promotes the proliferation, migration, and invasion of GC cells in vitro. METTL5 also promotes the growth of GC in animal models. METTL5 knockdown resulted in significant changes in sphingomyelin metabolism, which implies that METTL5 may impact the development of GC via sphingomyelin metabolism. In addition, high METTL5 expression led to cisplatin resistance. CONCLUSION METTL5 was found to be an oncogenic driver of GC and may be a new target for therapy since it facilitates GC carcinogenesis through sphingomyelin metabolism and cisplatin resistance.
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Affiliation(s)
- Ya-Qiong Zhang
- Endoscopy Center, Minhang Hospital Affiliated to Fudan University, Shanghai 201100, China
| | - Jian Li
- Endoscopy Center, Minhang Hospital Affiliated to Fudan University, Shanghai 201100, China
| | - Zhe Qin
- Endoscopy Center, Minhang Hospital Affiliated to Fudan University, Shanghai 201100, China
| | - De-Ming Li
- Endoscopy Center, Minhang Hospital Affiliated to Fudan University, Shanghai 201100, China
| | - Fang-Zhou Ye
- Endoscopy Center, Minhang Hospital Affiliated to Fudan University, Shanghai 201100, China
| | - Song-Hua Bei
- Endoscopy Center, Minhang Hospital Affiliated to Fudan University, Shanghai 201100, China
| | - Xiao-Hong Zhang
- Endoscopy Center, Minhang Hospital Affiliated to Fudan University, Shanghai 201100, China
| | - Li Feng
- Endoscopy Center, Minhang Hospital Affiliated to Fudan University, Shanghai 201100, China
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Vembuli H, Gor R, Ramalingam S, Perales S, Rajasingh J. RNA binding proteins in cancer chemotherapeutic drug resistance. Front Cell Dev Biol 2024; 12:1308102. [PMID: 38328550 PMCID: PMC10847363 DOI: 10.3389/fcell.2024.1308102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 01/12/2024] [Indexed: 02/09/2024] Open
Abstract
Drug resistance has been a major obstacle in the quest for a cancer cure. Many chemotherapeutic treatments fail to overcome chemoresistance, resulting in tumor remission. The exact process that leads to drug resistance in many cancers has not been fully explored or understood. However, the discovery of RNA binding proteins (RBPs) has provided insight into various pathways and post-transcriptional gene modifications involved in drug tolerance. RBPs are evolutionarily conserved proteins, and their abnormal gene expression has been associated with cancer progression. Additionally, RBPs are aberrantly expressed in numerous neoplasms. RBPs have also been implicated in maintaining cancer stemness, epithelial-to-mesenchymal transition, and other processes. In this review, we aim to provide an overview of RBP-mediated mechanisms of drug resistance and their implications in cancer malignancy. We discuss in detail the role of major RBPs and their correlation with noncoding RNAs (ncRNAs) that are associated with the inhibition of chemosensitivity. Understanding and exploring the pathways of RBP-mediated chemoresistance will contribute to the development of improved cancer diagnosis and treatment strategies.
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Affiliation(s)
- Hemanathan Vembuli
- Department of Genetic Engineering, School of Bio-Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
- Department of Bioscience Research, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Ravi Gor
- Department of Genetic Engineering, School of Bio-Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Satish Ramalingam
- Department of Genetic Engineering, School of Bio-Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Selene Perales
- Department of Bioscience Research, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Johnson Rajasingh
- Department of Genetic Engineering, School of Bio-Engineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
- Department of Bioscience Research, University of Tennessee Health Science Center, Memphis, TN, United States
- Department of Microbiology, Immunology, and Biochemistry, University of Tennessee Health Science Center, Memphis, TN, United States
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6
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Yin H, Wang Z, Wang D, Nuer M, Han M, Ren P, Ma S, Lin C, Chen J, Xian H, Ai D, Li X, Ma S, Lin Z, Pan Y. TIMELESS promotes the proliferation and migration of lung adenocarcinoma cells by activating EGFR through AMPK and SPHK1 regulation. Eur J Pharmacol 2023; 955:175883. [PMID: 37433364 DOI: 10.1016/j.ejphar.2023.175883] [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: 01/16/2023] [Revised: 06/23/2023] [Accepted: 06/26/2023] [Indexed: 07/13/2023]
Abstract
BACKGROUND Lung adenocarcinoma (LUAD) has high morbidity and is prone to recurrence. TIMELESS (TIM), which regulates circadian rhythms in Drosophila, is highly expressed in various tumors. Its role in LUAD has gained attention, but the detailed function and mechanism have not been clarified completely at present. METHODS Tumor samples from patients with LUAD patient data from public databases were used to confirm the relationship of TIM expression with lung cancer. LUAD cell lines were used and siRNA of TIM was adopted to knock down TIM expression in LUAD cells, and further cell proliferation, migration and colony formation were analyzed. By using Western blot and qPCR, we detected the influence of TIM on epidermal growth factor receptor (EGFR), sphingosine kinase 1 (SPHK1) and AMP-activated protein kinase (AMPK). With proteomics analysis, we comprehensively inspected the different changed proteins influenced by TIM and did global bioinformatic analysis. RESULTS We found that TIM expression was elevated in LUAD and that this high expression was positively correlated with more advanced tumor pathological stages and shorter overall and disease-free survival. TIM knockdown inhibited EGFR activation and also AKT/mTOR phosphorylation. We also clarified that TIM regulated the activation of SPHK1 in LUAD cells. And with SPHK1 siRNA to knock down the expression level of SPHK1, we found that EGFR activation were inhibited greatly too. Quantitative proteomics techniques combined with bioinformatics analysis clarified the global molecular mechanisms regulated by TIM in LUAD. The results of proteomics suggested that mitochondrial translation elongation and termination were altered, which were closely related to the process of mitochondrial oxidative phosphorylation. We further confirmed that TIM knockdown reduced ATP content and promoted AMPK activation in LUAD cells. CONCLUSIONS Our study revealed that siTIM could inhibit EGFR activation through activating AMPK and inhibiting SPHK1 expression, as well as influencing mitochondrial function and altering the ATP level; TIM's high expression in LUAD is an important factor and a potential key target in LUAD.
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Affiliation(s)
- Houqing Yin
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Peking University, Beijing, 100191, China
| | - Zequn Wang
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Peking University, Beijing, 100191, China
| | - Dan Wang
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Peking University, Beijing, 100191, China
| | - Muhadaisi Nuer
- Department of Pharmacology, Xinjiang Medical University, Urumqi, Xinjiang, 830011, China
| | - Mengyuan Han
- Department of Pharmacology, Xinjiang Medical University, Urumqi, Xinjiang, 830011, China
| | - Peng Ren
- Peking University Third Hospital Thoracic Surgery Department, China
| | - Shanwu Ma
- Peking University Third Hospital Thoracic Surgery Department, China
| | - Chutong Lin
- Peking University Third Hospital Thoracic Surgery Department, China
| | - Jingjing Chen
- Department of Pharmacology, Changzhi Medical College, Changzhi City, Shanxi Province, 046000, China
| | - Haocheng Xian
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Peking University, Beijing, 100191, China
| | - Dongmei Ai
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 100083, China
| | - Xuejun Li
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Peking University, Beijing, 100191, China; Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, 100191, China
| | - Shaohua Ma
- Peking University Third Hospital Thoracic Surgery Department, China.
| | - Zhiqiang Lin
- Institute of Systems Biomedicine, Beijing Key Laboratory of Tumor Systems Biology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China.
| | - Yan Pan
- Department of Pharmacology, School of Basic Medical Sciences, Health Science Center, Peking University, Beijing, 100191, China; Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, 100191, China.
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Zhao L, Wang Z, Xu Y, Zhang P, Qiu J, Nie D, Wu G, Chen C, Chang Y, Xia Q. Sphingosine kinase 1 regulates lipid metabolism to promote progression of kidney renal clear cell carcinoma. Pathol Res Pract 2023; 248:154641. [PMID: 37467634 DOI: 10.1016/j.prp.2023.154641] [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: 03/16/2023] [Revised: 06/14/2023] [Accepted: 06/20/2023] [Indexed: 07/21/2023]
Abstract
PURPOSE To detect the expression of sphingosine kinase 1 (SPHK1) in clear cell renal cell carcinoma (ccRCC) and explore its biological role in the occurrence and development of ccRCC through regulation of fatty acid metabolism. METHODS Using the Cancer Genome Atlas database, SPHK1 expression and its clinical significance were detected in clear cell renal cell carcinoma. Immunohistochemistry was performed to detect SPHK1 expression in RCC samples in our hospital. The connection between the SPHK1 levels and clinicopathological features of patients was assessed. Nile Red was used to detect fatty acids in cells. Cell Counting Kit-8 and 5-ethynyl-2'-deoxyuridine assays were performed to determine the effect of SPHK1 on renal cell viability and proliferation, respectively. Additionally, the effects of SPHK1 on the proliferation and metastasis of ccRCC were studied using wound healing and Transwell assays. Fatty acids were added exogenously in recovery experiments and western blotting was performed to determine the effect of SPHK1 on fatty acid metabolism in ccRCC. Finally, the effects of SPHK1 on tumor growth were investigated in a xenograft model. RESULTS Bioinformatics analysis revealed that SPHK1 expression was upregulated in kidney RCC. OverSPHK1 expression was associated with poor prognosis for ccRCC patients. High SPHK1 expression was detected in human ccRCC. SPHK1 expression was related to clinicopathological features, such as tumor size and Furman grade. Additionally, cell proliferation, migration, and invasion were inhibited in ccRCC cells with low SPHK1 expression. In rescue experiments, proliferation, migration, and invasion were restored. In vivo, reduced SPHK1 levels correlated with lower expression of fatty acid synthase, stearoyl-CoA desaturase 1, and acetyl CoA carboxylase, and slowed tumor growth. CONCLUSIONS SPHK1 is abnormally overexpressed in human ccRCC. Patients with ccRCC may benefit from treatments that target SPHK1, which may also serve as a prognostic indicator.
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Affiliation(s)
- Leizuo Zhao
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250021, China; Department of Urology, Dongying People's Hospital, Dongying 257000, China
| | - Zicheng Wang
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China; Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, China
| | - Yingkun Xu
- Department of Breast and Thyroid Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Peizhi Zhang
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250021, China
| | - Jiechuan Qiu
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Dengke Nie
- Department of Chest Surgery, The First Affiliated Hospital of Henan University, Kaifeng 475001, China
| | - Guangzhen Wu
- Department of Urology, The First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - Chen Chen
- Department of Urology, Liaocheng People's Hospital, Shandong University 252000, China
| | - Yao Chang
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Qinghua Xia
- Department of Urology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250021, China.
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Li C, Wang F, Cui L, Li S, Zhao J, Liao L. Association between abnormal lipid metabolism and tumor. Front Endocrinol (Lausanne) 2023; 14:1134154. [PMID: 37305043 PMCID: PMC10248433 DOI: 10.3389/fendo.2023.1134154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 05/05/2023] [Indexed: 06/13/2023] Open
Abstract
Metabolic Reprogramming is a sign of tumor, and as one of the three major substances metabolism, lipid has an obvious impact. Abnormal lipid metabolism is related to the occurrence of various diseases, and the proportion of people with abnormal lipid metabolism is increasing year by year. Lipid metabolism is involved in the occurrence, development, invasion, and metastasis of tumors by regulating various oncogenic signal pathways. The differences in lipid metabolism among different tumors are related to various factors such as tumor origin, regulation of lipid metabolism pathways, and diet. This article reviews the synthesis and regulatory pathways of lipids, as well as the research progress on cholesterol, triglycerides, sphingolipids, lipid related lipid rafts, adipocytes, lipid droplets, and lipid-lowering drugs in relation to tumors and their drug resistance. It also points out the limitations of current research and potential tumor treatment targets and drugs in the lipid metabolism pathway. Research and intervention on lipid metabolism abnormalities may provide new ideas for the treatment and survival prognosis of tumors.
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Affiliation(s)
- Chunyu Li
- Department of Endocrinology and Metabology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong First Medical University, Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, Shandong Institute of Nephrology, Jinan, China
| | - Fei Wang
- Department of Endocrinology and Metabology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong First Medical University, Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, Shandong Institute of Nephrology, Jinan, China
| | - Lili Cui
- Department of Endocrinology and Metabology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong First Medical University, Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, Shandong Institute of Nephrology, Jinan, China
| | - Shaoxin Li
- Department of Endocrinology and Metabology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong First Medical University, Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, Shandong Institute of Nephrology, Jinan, China
| | - Junyu Zhao
- Department of Endocrinology and Metabology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong First Medical University, Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, Shandong Institute of Nephrology, Jinan, China
- Department of Endocrinology and Metabology, Shandong Provincial Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lin Liao
- Department of Endocrinology and Metabology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Shandong First Medical University, Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, Shandong Institute of Nephrology, Jinan, China
- Department of Endocrinology and Metabology, Shandong Provincial Qianfoshan Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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Li F, Zheng Z, Chen W, Li D, Zhang H, Zhu Y, Mo Q, Zhao X, Fan Q, Deng F, Han C, Tan W. Regulation of cisplatin resistance in bladder cancer by epigenetic mechanisms. Drug Resist Updat 2023; 68:100938. [PMID: 36774746 DOI: 10.1016/j.drup.2023.100938] [Citation(s) in RCA: 48] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/30/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023]
Abstract
Bladder cancer is one of the most common malignancies in the world. Cisplatin is one of the most potent and widely used anticancer drugs and has been employed in several malignancies. Cisplatin-based combination chemotherapies have become important adjuvant therapies for bladder cancer patients. Cisplatin-based treatment often results in the development of chemoresistance, leading to therapeutic failure and limiting its application and effectiveness in bladder cancer. To develop improved and more effective cancer therapy, research has been conducted to elucidate the underlying mechanism of cisplatin resistance. Epigenetic modifications have been demonstrated involved in drug resistance to chemotherapy, and epigenetic biomarkers, such as urine tumor DNA methylation assay, have been applied in patients screening or monitoring. Here, we provide a systematic description of epigenetic mechanisms, including DNA methylation, noncoding RNA regulation, m6A modification and posttranslational modifications, related to cisplatin resistance in bladder cancer.
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Affiliation(s)
- Fei Li
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Zaosong Zheng
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Wei Chen
- Department of Urology, Institute of Precision Medicine, Zigong Forth People's Hospital, Zigong, Sichuan, China
| | - Dongqing Li
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Henghui Zhang
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yuanchao Zhu
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Qixin Mo
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Xinlei Zhao
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Qin Fan
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Fan Deng
- Department of Cell Biology, School of Basic Medical Science, Southern Medical University, Guangzhou, Guangdong, China
| | - Conghui Han
- Department of Urology, Xuzhou Clinical School of Xuzhou Medical University, Jiangsu, China.
| | - Wanlong Tan
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
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10
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Targeting the "undruggable": RNA-binding proteins in the spotlight in cancer therapy. Semin Cancer Biol 2022; 86:69-83. [PMID: 35772609 DOI: 10.1016/j.semcancer.2022.06.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 05/19/2022] [Accepted: 06/24/2022] [Indexed: 01/27/2023]
Abstract
Tumors refractory to conventional therapy belong to specific subpopulations of cancer cells, which have acquired a higher number of mutations/epigenetic changes than the majority of cancer cells. This property provides them the ability to become resistant to therapy. Aberrant expression of certain RNA-binding proteins (RBPs) can regulate the sensitivity of tumor cells to chemotherapeutic drugs by binding to specific regions present in the 3´-UTR of certain mRNAs to promote or repress mRNA translation or by interacting with other proteins (including RBPs) and non-coding RNAs that are part of ribonucleoprotein complexes. In particular, an increasing interest in the RBPs involved in chemoresistance has recently emerged. In this review, we discuss how RBPs are not only affected by chemotherapeutic treatments, but also play an active role in therapeutic responses via the direct modulation of crucial cancer-related proteins. A special focus is being placed on the development of therapeutic strategies targeting these RBPs.
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11
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Lin Z, Li Y, Han X, Fu Z, Tian Z, Li C. Targeting SPHK1/PBX1 Axis Induced Cell Cycle Arrest in Non-Small Cell Lung Cancer. Int J Mol Sci 2022; 23:12741. [PMID: 36361531 PMCID: PMC9657307 DOI: 10.3390/ijms232112741] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 10/14/2022] [Accepted: 10/19/2022] [Indexed: 03/05/2024] Open
Abstract
Non-small cell lung cancer (NSCLC) accounts for 85~90% of lung cancer cases, with a poor prognosis and a low 5-year survival rate. Sphingosine kinase-1 (SPHK1), a key enzyme in regulating sphingolipid metabolism, has been reported to be involved in the development of NSCLC, although the underlying mechanism remains unclear. In the present study, we demonstrated the abnormal signature of SPHK1 in NSCLC lesions and cell lines of lung cancers with a potential tumorigenic role in cell cycle regulation. Functionally, ectopic Pre-B cell leukemia homeobox-1 (PBX1) was capable of restoring the arrested G1 phase induced by SPHK1 knockdown. However, exogenous sphingosine-1-phosphate (S1P) supply had little impact on the cell cycle arrest by PBX1 silence. Furthermore, S1P receptor S1PR3 was revealed as a specific switch to transport the extracellular S1P signal into cells, and subsequently activated PBX1 to regulate cell cycle progression. In addition, Akt signaling partially participated in the SPHK1/S1PR3/PBX1 axis to regulate the cell cycle, and the Akt inhibitor significantly decreased PBX1 expression and induced G1 arrest. Targeting SPHK1 with PF-543 significantly inhibited the cell cycle and tumor growth in preclinical xenograft tumor models of NSCLC. Taken together, our findings exhibit the vital role of the SPHK1/S1PR3/PBX1 axis in regulating the cell cycle of NSCLC, and targeting SPHK1 may develop a therapeutic effect in tumor treatment.
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Affiliation(s)
- Zhoujun Lin
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Yin Li
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Xiao Han
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
| | - Zhenkun Fu
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
- Heilongjiang Provincial Key Laboratory for Infection and Immunity, Department of Immunology, Wu Lien-Teh Institute, Heilongjiang Academy of Medical Science, Harbin Medical University, Harbin 150081, China
| | - Zhenhuan Tian
- Department of Thoracic Surgery, Peking Union Medical College Hospital, No. 1 Shuaifuyuan, Dongcheng District, Beijing 100730, China
| | - Chenggang Li
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, No. 38 Tongyan Road, Jinnan District, Tianjin 300350, China
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12
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Hashemi M, Mirzaei S, Barati M, Hejazi ES, Kakavand A, Entezari M, Salimimoghadam S, Kalbasi A, Rashidi M, Taheriazam A, Sethi G. Curcumin in the treatment of urological cancers: Therapeutic targets, challenges and prospects. Life Sci 2022; 309:120984. [PMID: 36150461 DOI: 10.1016/j.lfs.2022.120984] [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: 07/01/2022] [Revised: 09/09/2022] [Accepted: 09/17/2022] [Indexed: 11/26/2022]
Abstract
Urological cancers include bladder, prostate and renal cancers that can cause death in males and females. Patients with urological cancers are mainly diagnosed at an advanced disease stage when they also develop resistance to therapy or poor response. The use of natural products in the treatment of urological cancers has shown a significant increase. Curcumin has been widely used in cancer treatment due to its ability to trigger cell death and suppress metastasis. The beneficial effects of curcumin in the treatment of urological cancers is the focus of current review. Curcumin can induce apoptosis in the three types of urological cancers limiting their proliferative potential. Furthermore, curcumin can suppress invasion of urological cancers through EMT inhibition. Notably, curcumin decreases the expression of MMPs, therefore interfering with urological cancer metastasis. When used in combination with chemotherapy agents, curcumin displays synergistic effects in suppressing cancer progression. It can also be used as a chemosensitizer. Based on pre-clinical studies, curcumin administration is beneficial in the treatment of urological cancers and future clinical applications might be considered upon solving problems related to the poor bioavailability of the compound. To improve the bioavailability of curcumin and increase its therapeutic index in urological cancer suppression, nanostructures have been developed to favor targeted delivery.
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Affiliation(s)
- Mehrdad Hashemi
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Sepideh Mirzaei
- Department of Biology, Faculty of Science, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Maryamsadat Barati
- Department of Biology, Faculty of Basic (Fundamental) Science, Shahr Qods Branch, Islamic Azad University, Tehran, Iran
| | - Elahe Sadat Hejazi
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Amirabbas Kakavand
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Maliheh Entezari
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Shokooh Salimimoghadam
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Alireza Kalbasi
- Department of Pharmacy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, United States of America
| | - Mohsen Rashidi
- Department Pharmacology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran; The Health of Plant and Livestock Products Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Afshin Taheriazam
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Orthopedics, Faculty of medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore; NUS Centre for Cancer Research, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117599, Singapore.
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