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Liu Y, Xing Z, Yuan M, Xu B, Chen L, Zhang D, Zhou Y, Huang H, Zheng X, Zhang J, Jiang J. IL1R2 promotes tumor progression via JAK2/STAT3 pathway in human clear cell renal cell carcinoma. Pathol Res Pract 2022; 238:154069. [PMID: 36029680 DOI: 10.1016/j.prp.2022.154069] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 07/27/2022] [Accepted: 08/08/2022] [Indexed: 11/17/2022]
Abstract
Clear cell renal cell carcinoma (ccRCC) is known as the most aggressive subtype of genitourinary cancers. The lack of effective therapies has prompted us to further explore the complex network of genes involved in ccRCC tumor progression and metastasis and to seek new biomarkers and therapeutic strategies to improve clinical outcomes. Interleukin-1 receptor type 2 (IL1R2), a decoy receptor of IL-1, is found to be differentially expressed in various tumors types recently. However, the role of IL1R2 in ccRCC has not been documented. Herein, we found that the expression of IL1R2 in ccRCC tissues was significantly increased as the tumor's Furman pathological grade was elevated. Compared to lower IL1R2 expression, ccRCC patients with high IL1R2 expression had a significantly worse OS rate. IL1R2 could serve as an independent prognostic predictor for ccRCC patients. Depletion of IL1R2 could inhibit cell proliferation, migration, invasion, and cell cycle arrest at the G1 phase, while overexpression of IL1R2 could reverse this effect. Moreover, depletion of IL1R2 led to changes and enrichment of several signaling pathways, as shown by RNA sequencing. We subsequently verified that Janus kinase 2 / signal transducer and activator of transcription 3 (JAK2/STAT3) pathway was involved in the IL1R2 mediated regulation of cellular functions of ccRCC cells and these functions were acted by the intracellular domain of IL1R2, not the extracellular domain. Our findings suggested that IL1R2 could serve as a potential therapeutic target for ccRCC progression and metastasis via its regulation of the JAK2/STAT3 signaling pathway.
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Affiliation(s)
- Yingting Liu
- Department of Tumor Biological Treatment, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, China; Jiangsu Engineering Research Center for Tumor Immunotherapy, Changzhou, Jiangsu 213003, China; Institute of Cell Therapy, Soochow University, Changzhou, Jiangsu 213003, China; State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, Jiangsu 210023, China.
| | - Zhaoyu Xing
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, China.
| | - Maoling Yuan
- Department of Geriatrics, The Third Affiliated Hospital of Soochow University, Changzhou 213000, China.
| | - Bin Xu
- Department of Tumor Biological Treatment, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, China; Jiangsu Engineering Research Center for Tumor Immunotherapy, Changzhou, Jiangsu 213003, China; Institute of Cell Therapy, Soochow University, Changzhou, Jiangsu 213003, China.
| | - Lujun Chen
- Department of Tumor Biological Treatment, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, China; Jiangsu Engineering Research Center for Tumor Immunotherapy, Changzhou, Jiangsu 213003, China; Institute of Cell Therapy, Soochow University, Changzhou, Jiangsu 213003, China.
| | - Dachuan Zhang
- Department of Pathology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, China.
| | - You Zhou
- Department of Tumor Biological Treatment, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, China; Jiangsu Engineering Research Center for Tumor Immunotherapy, Changzhou, Jiangsu 213003, China; Institute of Cell Therapy, Soochow University, Changzhou, Jiangsu 213003, China.
| | - Hao Huang
- Department of Tumor Biological Treatment, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, China; Jiangsu Engineering Research Center for Tumor Immunotherapy, Changzhou, Jiangsu 213003, China; Institute of Cell Therapy, Soochow University, Changzhou, Jiangsu 213003, China.
| | - Xiao Zheng
- Department of Tumor Biological Treatment, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, China; Jiangsu Engineering Research Center for Tumor Immunotherapy, Changzhou, Jiangsu 213003, China; Institute of Cell Therapy, Soochow University, Changzhou, Jiangsu 213003, China.
| | - Jinping Zhang
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, Jiangsu 215123, China.
| | - Jingting Jiang
- Department of Tumor Biological Treatment, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu 213003, China; Jiangsu Engineering Research Center for Tumor Immunotherapy, Changzhou, Jiangsu 213003, China; Institute of Cell Therapy, Soochow University, Changzhou, Jiangsu 213003, China; State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, Jiangsu 210023, China.
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Beheshti R, Halstead S, McKeone D, Hicks SD. Understanding immunological origins of atopic dermatitis through multi-omic analysis. Pediatr Allergy Immunol 2022; 33:e13817. [PMID: 35754121 DOI: 10.1111/pai.13817] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 05/19/2022] [Accepted: 05/30/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND The pathophysiology of atopic dermatitis (AD) is multifactorial, impacted by individual medical, demographic, environmental, and immunologic factors. This study used multi-omic analyses to assess how host and microbial factors could contribute to infant AD development. METHODS This longitudinal cohort study included 129 term infants, identified as AD (n = 37) or non-AD (n = 92) using the Infant Feeding Practices-II survey and review of medical records. Standardized surveys were used to assess medical and demographic traits (gestational age, sex, race, maternal AD, and atopy family history), and environmental exposures (delivery method, maternal tobacco use, pets, breastfeeding duration, and timing of solid food introduction). Saliva was collected at 6 months for multi-omic assessment of cytokines, microRNAs, mRNAs, and the microbiome. The contribution of each factor to AD status was assessed with logistic regression. RESULTS Medical, demographic, and environmental factors did not differ between AD and non-AD infants. Five "omic" factors (IL-8/IL-6, miR-375-3p, miR-21-5p, bacterial diversity, and Proteobacteria) differed between groups (p < .05). The severity of AD was positively associated with levels of miR-375-3p (R = .17, p = .049) and Proteobacteria (R = .22, p = .011), and negatively associated with levels of miR-21-5p (R = .20, p = .022). Multi-omic features accounted for 17% of variance between groups, significantly improving an AD risk model employing medical, demographic, and environmental factors (X2 = 32.47, p = .006). CONCLUSION Interactions between the microbiome and host signaling may predispose certain infants to AD by promoting a pro-inflammatory environment.
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Affiliation(s)
- Ramin Beheshti
- Department of Pediatrics, Pennsylvania State Health Children's Hospital, Hershey, Pennsylvania, USA
| | - Scott Halstead
- Department of Pediatrics, Pennsylvania State Health Children's Hospital, Hershey, Pennsylvania, USA
| | - Daniel McKeone
- Department of Pediatrics, Pennsylvania State Health Children's Hospital, Hershey, Pennsylvania, USA
| | - Steven D Hicks
- Department of Pediatrics, Pennsylvania State Health Children's Hospital, Hershey, Pennsylvania, USA
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Wang S, Wei X, Ji C, Wang Y, Zhang X, Cong R, Song N. Adipogenic Transdifferentiation and Regulatory Factors Promote the Progression and the Immunotherapy Response of Renal Cell Carcinoma: Insights From Integrative Analysis. Front Oncol 2022; 12:781932. [PMID: 35356208 PMCID: PMC8959453 DOI: 10.3389/fonc.2022.781932] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 02/09/2022] [Indexed: 12/24/2022] Open
Abstract
Background Adipogenic transdifferentiation was an important carcinogenic factor in various tumors, while studies on its role in clear cell renal cell carcinoma (ccRCC) were still relatively few. This study aimed to investigate its prognostic value and mechanism of action in ccRCC. Methods Gene expression profiles and clinical data of ccRCC patients were obtained from The Cancer Genome Atlas database. Nonnegative matrix factorization was used for clustering. Gene set variation analysis (GSVA) and gene set enrichment analysis (GSEA) were used to analyze the pathways and biological process activities. single-sample GSEA (ssGSEA) was utilized to quantify the relative abundance of each immune cell. Tumor Immune Estimation Resource (TIMER) was used to evaluate the proportion of various immune infiltrating cells across diverse cancer types. Real-Time PCR was performed to examine the gene expression. R software was utilized to analyze the expression and prognostic role of genes in ccRCC. Results A total of 49 adipose-related genes (ARGs) were screened for differential expression between normal and ccRCC tissues. Based on differentially expressed ARGs, patients with ccRCC were divided into two adipose subtypes with different clinical, molecular, and pathway characteristics. Patients in cluster A exhibited more advanced pathological stages, higher expressions of RARRES2 and immune checkpoint genes, higher immune infiltration scores, and less nutrient metabolism pathways. Adipose differentiation index (ADI) was constructed according to the above ARGs and survival data, and its robustness and accuracy was validated in different cohorts. In addition, it was found that the expression of ARGs was associated with immune cell infiltration and immune checkpoint in ccRCC, among which GBP2 was thought to be the most relevant gene to the tumor immune microenvironment and play a potential role in carcinogenesis and invasion of tumor cells. Conclusion Our analysis revealed the consistency of higher adipogenic transdifferentiation of tumor cells with worse clinical outcomes in ccRCC. The 16-mRNA signature could predict the prognosis of ccRCC patients with high accuracy. ARGs such as GBP2 might shed light on the development of novel biomarkers and immunotherapies of ccRCC.
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Affiliation(s)
- Shuai Wang
- The State Key Lab of Reproductive Medicine, Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xiyi Wei
- The State Key Lab of Reproductive Medicine, Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Chengjian Ji
- The State Key Lab of Reproductive Medicine, Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yichun Wang
- The State Key Lab of Reproductive Medicine, Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xi Zhang
- The State Key Lab of Reproductive Medicine, Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Rong Cong
- The State Key Lab of Reproductive Medicine, Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ninghong Song
- The State Key Lab of Reproductive Medicine, Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Department of Urology, The Affiliated Kezhou People's Hospital of Nanjing Medical University, Kezhou, China
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Yao H, Li X, Pan X, Xu J, Zhao S, Su Z, Qiu S. Fraxetin exerts anticancer effect in glioma by suppressing MiR-21-3p. Drug Dev Res 2021; 83:501-511. [PMID: 34523750 DOI: 10.1002/ddr.21881] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 09/02/2021] [Accepted: 09/06/2021] [Indexed: 01/21/2023]
Abstract
Fraxetin (FXT) exerts anticancer function in multiple cancers, but its function on glioma was ill-defined. This article expounded the mechanism by which FXT exerts an anticancer effect in glioma. The effect of gradient concentration of FXT on the viability of glioma cell lines was determined by cell counting kit 8. Effects of FXT on proliferation, apoptosis, and cell cycle in glioma cell lines were determined by colony formation assay, flow cytometry, and Hoechst 33342 staining. Expressions of apoptosis-related gene, cycle-related gene, and glioma-related miRNAs after FXT (25 and 50 μmol/L) treatment were determined by quantitative reverse transcription polymerase chain reaction and western blot as needed. After miR-21-3p overexpression, cell viability and apoptosis of glioma cell lines treated with FXT (50 μmol/L) were tested again. Although 1 μmol/L FXT had no significant effect on cell viability, 5, 10, 25, and 50 μmol/L FXT suppressed cell viability in a concentration-dependent manner. FXT inhibited proliferation, promoted apoptosis, and induced cell cycle arrest in G0/G1 phase in glioma cell lines. These effects may be achieved by elevated expressions of Bax and cleaved caspase-3 and diminished expressions of Bcl-2, Bcl-XL, cyclin E1, cyclin D1, and cyclin-dependent kinase-6. FXT attenuated the contents of miR-21-3p and miR-455-3p, and escalated the contents of miR-124-3p and miR-7-5p. The regulation of FXT on cell viability, proliferation and apoptosis was reversed by miR-21-3p overexpression. FXT suppressed the development of glioma cells by downregulating miR-21-3p.
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Affiliation(s)
- Hanxun Yao
- Department of Neurosurgery, Huzhou Central Hospital, Huzhou, China
| | - Xiaobin Li
- Department of Neurosurgery, Huzhou Central Hospital, Huzhou, China
| | - Xuyan Pan
- Department of Neurosurgery, Huzhou Central Hospital, Huzhou, China
| | - Jie Xu
- Department of Neurosurgery, Huzhou Central Hospital, Huzhou, China
| | - Shufa Zhao
- Department of Neurosurgery, Huzhou Central Hospital, Huzhou, China
| | - Zhongzhou Su
- Department of Neurosurgery, Huzhou Central Hospital, Huzhou, China
| | - Sheng Qiu
- Department of Neurosurgery, Huzhou Central Hospital, Huzhou, China
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Mesyl phosphoramidate backbone modified antisense oligonucleotides targeting miR-21 with enhanced in vivo therapeutic potency. Proc Natl Acad Sci U S A 2020; 117:32370-32379. [PMID: 33288723 DOI: 10.1073/pnas.2016158117] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The design of modified oligonucleotides that combine in one molecule several therapeutically beneficial properties still poses a major challenge. Recently a new type of modified mesyl phosphoramidate (or µ-) oligonucleotide was described that demonstrates high affinity to RNA, exceptional nuclease resistance, efficient recruitment of RNase H, and potent inhibition of key carcinogenesis processes in vitro. Herein, using a xenograft mouse tumor model, it was demonstrated that microRNA miR-21-targeted µ-oligonucleotides administered in complex with folate-containing liposomes dramatically inhibit primary tumor growth via long-term down-regulation of miR-21 in tumors and increase in biosynthesis of miR-21-regulated tumor suppressor proteins. This antitumoral effect is superior to the effect of the corresponding phosphorothioate. Peritumoral administration of µ-oligonucleotide results in its rapid distribution and efficient accumulation in the tumor. Blood biochemistry and morphometric studies of internal organs revealed no pronounced toxicity of µ-oligonucleotides. This new oligonucleotide class provides a powerful tool for antisense technology.
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Urotensin receptor antagonist urantide improves atherosclerosis-related kidney injury by inhibiting JAK2/STAT3 signaling pathway in rats. Life Sci 2020; 247:117421. [DOI: 10.1016/j.lfs.2020.117421] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 02/05/2020] [Accepted: 02/08/2020] [Indexed: 12/16/2022]
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Chen L, Wang X, Qu X, Pan L, Wang Z, Lu Y, Hu H. Activation of the STAT3/microRNA-21 pathway participates in angiotensin II-induced angiogenesis. J Cell Physiol 2019; 234:19640-19654. [PMID: 30950039 PMCID: PMC6767590 DOI: 10.1002/jcp.28564] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 02/22/2019] [Accepted: 03/06/2019] [Indexed: 12/26/2022]
Abstract
Angiotensin II (AngII) facilitates angiogenesis that is associated with the continuous progression of atherosclerotic plaques, but the underlying mechanisms are still not fully understood. Several microRNAs (miRNAs) have been shown to promote angiogenesis; however, whether miRNAs play a crucial role in AngII-induced angiogenesis remains unclear. This study evaluated the functional involvement of miRNA-21 (miR-21) in the AngII-mediated proangiogenic response in human microvascular endothelial cells (HMECs). We found that AngII exerted a proangiogenic role, indicated by the promotion of proliferation, migration, and tube formation in HMECs. Next, miR-21 was found to be upregulated in AngII-treated HMECs, and its specific inhibitor potently blocked the proangiogenic effects of AngII. Subsequently, we focused on the constitutive activation of STAT3 in the AngII-mediated proangiogenic process. Bioinformatic analysis indicated that STAT3 acted as a transcription factor initiating miR-21 expression, which was verified by ChIP-PCR. A reporter assay further identified three functional binding sites of STAT3 in the miR-21 promoter region. Moreover, phosphatase and tensin homolog (PTEN) was recognized as a target of miR-21, and STAT3 inhibition restored AngII-induced reduction in PTEN. Similarly, the STAT3/miR-21 axis was shown to mediate AngII-provoked angiogenesis in vivo, which was demonstrated by using the appropriate inhibitors. Our data suggest that AngII was involved in proangiogenic responses through miR-21 upregulation and reduced PTEN expression, which was, at least in part, linked to STAT3 signaling. The present study provides novel insights into AngII-induced angiogenesis and suggests potential treatment strategies for attenuating the progression of atherosclerotic lesions and preventing atherosclerosis complications.
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Affiliation(s)
- Li‐Yuan Chen
- Department of CardiologySouthwest Hospital, Third Military Medical UniversityChongqingChina
| | - Xue Wang
- Department of Occupational HealthThird Military Medical UniversityChongqingChina
| | - Xiao‐Long Qu
- Department of CardiologySouthwest Hospital, Third Military Medical UniversityChongqingChina
| | - Li‐Na Pan
- Department of CardiologySouthwest Hospital, Third Military Medical UniversityChongqingChina
| | - Ze‐Yang Wang
- Department of CardiologySouthwest Hospital, Third Military Medical UniversityChongqingChina
| | - Yong‐Hui Lu
- Department of Occupational HealthThird Military Medical UniversityChongqingChina
| | - Hou‐Yuan Hu
- Department of CardiologySouthwest Hospital, Third Military Medical UniversityChongqingChina
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Zhu J, Zhu D, Zhang Y, Liu Q, Wang P, Li H, Ma X, Zhang X. MicroRNA‐363 inhibits angiogenesis, proliferation, invasion, and migration of renal cell carcinoma via inactivation of the Janus tyrosine kinases 2–signal transducers and activators of transcription 3 axis by suppressing growth hormone receptor gene. J Cell Physiol 2018; 234:2581-2592. [DOI: 10.1002/jcp.27020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 06/25/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Jie Zhu
- Department of UrologyChinese PLA General HospitalBeijing China
| | - Da‐Qing Zhu
- Department of UrologyHainan Branch of Chinese PLA General HospitalSanya China
| | - Yu Zhang
- Department of UrologyChinese PLA General HospitalBeijing China
| | - Qi‐Ming Liu
- Department of UrologyHainan Branch of Chinese PLA General HospitalSanya China
| | - Peng‐Chao Wang
- Department of UrologyHainan Branch of Chinese PLA General HospitalSanya China
| | - Hong‐Zhao Li
- Department of UrologyChinese PLA General HospitalBeijing China
| | - Xin Ma
- Department of UrologyChinese PLA General HospitalBeijing China
| | - Xu Zhang
- Department of UrologyChinese PLA General HospitalBeijing China
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Lokeshwar SD, Talukder A, Yates TJ, Hennig MJP, Garcia-Roig M, Lahorewala SS, Mullani NN, Klaassen Z, Kava BR, Manoharan M, Soloway MS, Lokeshwar VB. Molecular Characterization of Renal Cell Carcinoma: A Potential Three-MicroRNA Prognostic Signature. Cancer Epidemiol Biomarkers Prev 2018; 27:464-472. [PMID: 29440068 DOI: 10.1158/1055-9965.epi-17-0700] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Revised: 10/28/2017] [Accepted: 01/09/2018] [Indexed: 11/16/2022] Open
Abstract
Background: Aberrantly expressed miRNAs promote renal cell carcinoma (RCC) growth and metastasis and are potentially useful biomarkers for metastatic disease. However, a consensus clinically significant miRNA signature has not been identified. To identify an miRNA signature for predicting clinical outcome in RCC patients, we used a four-pronged interconnected approach.Methods: Differentially expressed miRNAs were identified and analyzed in 113 specimens (normal kidney: 59; tumor: 54). miRNA profiling was performed in matched normal and tumor specimens from 8 patients and extended to 32 specimens. Seven aberrantly expressed miRNAs were analyzed by qPCR, and their levels were correlated with RCC subtypes and clinical outcome. miRNA signature was confirmed in The Cancer Genome Atlas RCC dataset (n = 241).Results: Discovery phase identified miR-21, miR-142-3p, miR-142-5p, miR-150, and miR-155 as significantly upregulated (2-4-fold) and miR-192 and miR-194 as downregulated (3-60-fold) in RCC; miR-155 distinguished small tumors (<4 cm) from benign oncocytomas. In univariate and multivariate analyses, miRNA combinations (miR-21+194; miR-21+142-5p+194) significantly predicted metastasis and/or disease-specific mortality; miR-21+142-5p+194 (for metastasis): P = 0.0017; OR, 0.53; 95% confidence interval (CI), 0.75-0.33; 86.7% sensitivity; 82% specificity. In the TCGA dataset, combined biomarkers associated with metastasis and overall survival (miR-21+142-5p+194: P < 0.0001; OR, 0.37; 95% CI, 0.58-0.23).Conclusions: The interconnected discovery-validation approach identified a three-miRNA signature as a potential predictor of disease outcome in RCC patients.Impact: With 10% survival at 5 years, metastatic disease presents poor prognosis for RCC patients. The three-miRNA signature discovered and validated may potentially at an early stage detect and predict metastasis, to allow early intervention for improving patient prognosis. Cancer Epidemiol Biomarkers Prev; 27(4); 464-72. ©2018 AACR.
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Affiliation(s)
- Soum D Lokeshwar
- Honors Program in Medical Education, Miller School of Medicine, University of Miami, Miami, Florida.,Department of Biochemistry and Molecular Biology, Department of Surgery, Medical College of Georgia, Augusta University, Augusta, Georgia
| | - Asif Talukder
- Department of Surgery, Medical College of Georgia, Augusta University, Augusta, Georgia
| | - Travis J Yates
- Sheila and David Fuente Graduate Program in Cancer Biology, Sylvester Comprehensive Cancer Center, University of Miami, Miller School of Medicine, Miami, Florida
| | - Martin J P Hennig
- Department of Urology, University of Schleswig-Holstein, Lübeck, Germany
| | - Michael Garcia-Roig
- Department of Urology, Miller School of Medicine, University of Miami, Miami, Florida
| | - Sarrah S Lahorewala
- Honors Program in Medical Education, Miller School of Medicine, University of Miami, Miami, Florida
| | - Naureen N Mullani
- Honors Program in Medical Education, Miller School of Medicine, University of Miami, Miami, Florida
| | - Zachary Klaassen
- Division of Urology, Department of Surgery, Medical College of Georgia, Augusta University, Augusta, Georgia
| | - Bruce R Kava
- Department of Urology, Miller School of Medicine, University of Miami, Miami, Florida
| | - Murugesan Manoharan
- Division of Urologic Oncology Surgery, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida
| | | | - Vinata B Lokeshwar
- Honors Program in Medical Education, Miller School of Medicine, University of Miami, Miami, Florida.
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Zhang J, Liu C, You G. AG490, a JAK2-specific inhibitor, downregulates the expression and activity of organic anion transporter-3. J Pharmacol Sci 2018; 136:142-148. [PMID: 29487013 PMCID: PMC7863619 DOI: 10.1016/j.jphs.2018.01.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 12/29/2017] [Accepted: 01/22/2018] [Indexed: 01/10/2023] Open
Abstract
Human organic anion transporter-3 (hOAT3) is richly expressed in the kidney, where it plays critical roles in the secretion of clinically important drugs, including anti-viral therapeutics, anti-cancer drugs, antibiotics, antihypertensives, and anti-inflammatories. In the current study, we examined the role of AG490, a specific inhibitor of the Janus tyrosine kinase 2 (JAK2), in hOAT3 transport activity in the kidney COS-7 cells. AG490 induced a time- and concentration-dependent inhibition of hOAT3-mediated uptake of estrone sulfate, a prototypical substrate for the transporter. The inhibitory effect of AG490 correlated with a reduced expression of hOAT3 at the cell surface. Our lab previously demonstrated that Nedd4-2, a ubiquitin ligase, down regulates OAT expression and transport activity by enhancing OAT ubiquitination, which leads to an internalization of OAT from cell surface to intracellular compartments and subsequent degradation. In the current study, we showed that treatment of hOAT3-expressing cells with AG490 resulted in an enhanced hOAT3 ubiquitination and degradation, which was accompanied by a strengthened association of Nedd4-2 with hOAT3 and a reduction in Nedd4-2 phosphorylation. SiRNA knockdown of endogenous Nedd4-2 abrogated the effects of AG490 on hOAT3. In summary, our study demonstrated that AG490 regulates hOAT3 expression and transport activity through the modulation of Nedd4-2.
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Affiliation(s)
- Jinghui Zhang
- Department of Pharmaceutics, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854, USA
| | - Chenchang Liu
- Department of Pharmaceutics, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854, USA
| | - Guofeng You
- Department of Pharmaceutics, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854, USA.
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