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He T, Li NX, Pan ZJ, Zou ZH, Chen JC, Yu SZ, Lv F, Xie QC, Zou J. Serine/threonine kinase 36 induced epithelial-mesenchymal transition promotes docetaxel resistance in prostate cancer. Sci Rep 2024; 14:729. [PMID: 38184689 PMCID: PMC10771505 DOI: 10.1038/s41598-024-51360-9] [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: 10/13/2023] [Accepted: 01/03/2024] [Indexed: 01/08/2024] Open
Abstract
To investigate the role and potential mechanism of serine/threonine kinase 36 (STK36) in docetaxel resistance-prostate cancer (PCa). The expression of STK36 in PCa and the correlation with clinicopathological characteristics of PCa patients were analyzed using the data from different databases and tissue microarrays. To investigate the role of STK36 on cell proliferation, invasion, and migration, STK36 was overexpressed and silenced in DU-145 and PC-3 cell lines. Cell counting kit-8 (CCK8) was used to test cell proliferation. Cell invasion and migration were detected by cell wound scratch assay and trans well, respectively. The expression profile of STK36, E-Cadherin, and Vimentin was analyzed by Western blot. Cell apoptosis was detected by the TUNEL assay. STK36 expression was upregulated in PCa tissue compared with adjacent benign PCa tissue; it was higher in patients with advanced stages compared with lower stages and was significantly correlated with decreased overall survival. Up-regulation of STK36 significantly promoted the proliferation, invasion, and migration of DU-145 and PC-3 cells and compensated for the suppression caused by docetaxel treatment in vitro. A striking apoptosis inhibition could be observed when dealing with docetaxel, although the apoptosis of DU-145 and PC-3 cells was not affected by the STK36 exclusive overexpression. Besides, E-Cadherin expression was restrained while the expression levels of vimentin were all enhanced. The knockdown of STK36 reversed the above process. STK36 up-regulation could accelerate the biological behavior and docetaxel resistance of PCa by epithelial-mesenchymal transition (EMT) activation. STK36 may be potentially used as a target in PCa resolvent with docetaxel.
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Affiliation(s)
- Tao He
- Department of Emergency Surgery, Guangdong Provincial Key Laboratory of Major Obstetric Diseases; Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology; The Third Affiliated Hospital of Guangzhou Medical University, 63 DuoBao Road, Guangzhou, Guangdong, 510150, People's Republic of China
| | - Nan-Xing Li
- Department of Emergency Surgery, Guangdong Provincial Key Laboratory of Major Obstetric Diseases; Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology; The Third Affiliated Hospital of Guangzhou Medical University, 63 DuoBao Road, Guangzhou, Guangdong, 510150, People's Republic of China
| | - Zhao-Jun Pan
- Department of Urology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases; Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology; The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510150, People's Republic of China
| | - Zi-Hao Zou
- Department of Urology, Guangdong Provincial Key Laboratory of Major Obstetric Diseases; Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology; The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, 510150, People's Republic of China
| | - Jie-Chuan Chen
- The Third Clinical College of Guangzhou Medical University, Guangzhou, Guangdong, 511436, People's Republic of China
| | - Si-Zhe Yu
- The Third Clinical College of Guangzhou Medical University, Guangzhou, Guangdong, 511436, People's Republic of China
| | - Fa Lv
- The Third Clinical College of Guangzhou Medical University, Guangzhou, Guangdong, 511436, People's Republic of China
| | - Quan-Cheng Xie
- The Third Clinical College of Guangzhou Medical University, Guangzhou, Guangdong, 511436, People's Republic of China
| | - Jun Zou
- Department of Emergency Surgery, Guangdong Provincial Key Laboratory of Major Obstetric Diseases; Guangdong Provincial Clinical Research Center for Obstetrics and Gynecology; The Third Affiliated Hospital of Guangzhou Medical University, 63 DuoBao Road, Guangzhou, Guangdong, 510150, People's Republic of China.
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2
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Zhou Q, Zhang P, Man J, Zhang B, Xue C, Ke X, Zhou J. Correlation analysis of tumor purity with clinicopathological, molecular, and imaging features in high-grade gliomas. Neurosurg Rev 2022; 45:3699-3708. [PMID: 36156749 DOI: 10.1007/s10143-022-01871-8] [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: 07/19/2022] [Revised: 08/23/2022] [Accepted: 09/16/2022] [Indexed: 10/14/2022]
Abstract
High-grade gliomas (HGG) have high malignancy, high heterogeneity, and a poor prognosis. Tumor purity is an intrinsic feature of the HGG microenvironment and an independent prognostic factor. The purpose of this study was to analyze the correlation of tumor purity with clinicopathological, molecular, and imaging features. We performed a retrospective analysis of 112 patients diagnosed with HGG (grades III and IV) in our center. Eleven regions of interest (ROI) were randomly selected on whole-slide images (WSI, 40 × magnification) based on HGG tissue paraffin sections and hematoxylin-eosin (H&E) staining. Of these 11 ROIs, five ROIs were visually estimated by pathologists and six ROIs were automatically analyzed using ImageJ software. Last, the average tumor purity (%) of the 11 ROIs was calculated. Correlation analysis of tumor purity with clinicopathological, molecular, and imaging features was conducted. Of the 112 patients included in the study, the mean tumor purity of HGG was 70.96%. There were differences in tumor purity between WHO grades III and IV; the tumor purity of grade IV patients (67.59%) was lower than that of grade III patients (76.00%) (p < 0.001). There were also differences in tumor purity between IDH1 mutant and wild type, and the tumor purity of IDH1 mutant patients was higher than that of IDH1 wild-type patients (p = 0.006). The average range of peritumoral edema was about 19.18 mm, and the diameter of edema, ADCmean, and ADCmin were negatively correlated with tumor purity(r = - 0.236, r = - 0.306, and r = - 0.242; p < 0.05). The grade of HGG, IDH1 mutant/wild type, peritumoral edema, and ADC value were correlated with tumor purity. HGG grade, IDH1 mutant/wild type, peritumoral edema, and ADC value can predict tumor purity and indirectly reflect patient prognosis.
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Affiliation(s)
- Qing Zhou
- Department of Radiology, Lanzhou University Second Hospital, Lanzhou, Gansu, China.,Second Clinical School, Lanzhou University, Lanzhou, Gansu, China.,Key Laboratory of Medical Imaging of Gansu Province, Lanzhou, China.,Gansu International Scientific and Technological Cooperation Base of Medical Imaging Artificial Intelligence, Lanzhou, China
| | - Peng Zhang
- Second Clinical School, Lanzhou University, Lanzhou, Gansu, China.,Department of Pathology, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Jiangwei Man
- Department of Surgery, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Bin Zhang
- Department of Radiology, Lanzhou University Second Hospital, Lanzhou, Gansu, China.,Second Clinical School, Lanzhou University, Lanzhou, Gansu, China.,Key Laboratory of Medical Imaging of Gansu Province, Lanzhou, China.,Gansu International Scientific and Technological Cooperation Base of Medical Imaging Artificial Intelligence, Lanzhou, China
| | - Caiqiang Xue
- Department of Radiology, Lanzhou University Second Hospital, Lanzhou, Gansu, China.,Second Clinical School, Lanzhou University, Lanzhou, Gansu, China.,Key Laboratory of Medical Imaging of Gansu Province, Lanzhou, China.,Gansu International Scientific and Technological Cooperation Base of Medical Imaging Artificial Intelligence, Lanzhou, China
| | - Xiaoai Ke
- Department of Radiology, Lanzhou University Second Hospital, Lanzhou, Gansu, China.,Key Laboratory of Medical Imaging of Gansu Province, Lanzhou, China.,Gansu International Scientific and Technological Cooperation Base of Medical Imaging Artificial Intelligence, Lanzhou, China
| | - Junlin Zhou
- Department of Radiology, Lanzhou University Second Hospital, Lanzhou, Gansu, China. .,Second Clinical School, Lanzhou University, Lanzhou, Gansu, China. .,Key Laboratory of Medical Imaging of Gansu Province, Lanzhou, China. .,Gansu International Scientific and Technological Cooperation Base of Medical Imaging Artificial Intelligence, Lanzhou, China.
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3
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Cyclopamine sensitizes glioblastoma cells to temozolomide treatment through Sonic hedgehog pathway. Life Sci 2020; 257:118027. [PMID: 32622951 DOI: 10.1016/j.lfs.2020.118027] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 06/12/2020] [Accepted: 06/26/2020] [Indexed: 12/11/2022]
Abstract
AIM Glioblastoma is an extremely aggressive glioma, resistant to radio and chemotherapy usually performed with temozolomide. One of the main reasons for glioblastoma resistance to conventional therapies is due to the presence of cancer stem-like cells. These cells could recapitulate some signaling pathways important for embryonic development, such as Sonic hedgehog. Here, we investigated if the inhibitor of the Sonic hedgehog pathway, cyclopamine, could potentiate the temozolomide effect in cancer stem-like cells and glioblastoma cell lines in vitro. MAIN METHODS The viability of glioblastoma cells exposed to cyclopamine and temozolomide treatment was evaluated by using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay while the induction of apoptosis was assessed by western blot. The stemness properties of glioma cells were verified by clonogenic and differentiation assay and the expression of stem cell markers were measured by fluorescence microscopy and western blot. KEY FINDINGS The glioblastoma viability was reduced by cyclopamine treatment. Cyclopamine potentiated temozolomide treatment in glioblastoma cell lines by inducing apoptosis through activation of caspase-3 cleaved. Conversely, the combined treatment of cyclopamine and temozolomide potentiated the stemness properties of glioblastoma cells by inducing the expression of SOX-2 and OCT-4. SIGNIFICANCE Cyclopamine plays an effect on glioblastoma cell lines but also sensibilize them to temozolomide treatment. Thus, first-line treatment with Sonic hedgehog inhibitor followed by temozolomide could be used as a new therapeutic strategy for glioblastoma patients.
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4
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Chen X, Guo ZQ, Cao D, Chen Y, Chen J. Knockdown of DEPDC1B inhibits the development of glioblastoma. Cancer Cell Int 2020; 20:310. [PMID: 32684847 PMCID: PMC7362545 DOI: 10.1186/s12935-020-01404-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 07/06/2020] [Indexed: 11/10/2022] Open
Abstract
Background Glioblastoma (GBM) is the most common primary malignant brain tumor in adults with a poor prognosis. DEPDC1B (DEP domain-containing protein 1B) has been shown to be associated with some types of malignancies. However, the role and underlying regulatory mechanisms of DEPDC1B in GBM remain elusive. Methods In this research, the expression level of DEPDC1B in GBM tissues was detected by IHC. The DEPDC1B knockdown cell line was constructed, identified by qRT-PCR and western blot and used to construct the xenotransplantation mice model and intracranial xenograft model. MTT assay, colony formation assay, flow cytometry, and Transwell assay were used to detected cell proliferation, apoptosis and migration. Results The results proved that DEPDC1B was significantly upregulated in tumor tissues, and silencing DEPDC1B could inhibit proliferation, migration and promote apoptosis of GBM cell. In addition, human apoptosis antibody array detection showed that after DEPDC1B knockdown, the expression of apoptosis-related proteins was downregulated, such as IGFBP-2, Survivin, N-cadherin, Vimentin and Snail. Finally, we indicated that knockdown of DEPDC1B significantly inhibited tumor growth in vivo. Conclusions In summary, DEPDC1B was involved in the development and progression of GBM, which may be a potential therapeutic target and bring a breakthrough in the treatment.
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Affiliation(s)
- Xu Chen
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Ave, 1095, Wuhan, 430030 China
| | - Zheng-Qian Guo
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Ave, 1095, Wuhan, 430030 China
| | - Dan Cao
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Ave, 1095, Wuhan, 430030 China
| | - Yong Chen
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Ave, 1095, Wuhan, 430030 China
| | - Jian Chen
- Department of Neurosurgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Ave, 1095, Wuhan, 430030 China
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5
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Honorato JR, Hauser-Davis RA, Saggioro EM, Correia FV, Sales-Junior SF, Soares LOS, Lima LDR, Moura-Neto V, Lopes GPDF, Spohr TCLDS. Role of Sonic hedgehog signaling in cell cycle, oxidative stress, and autophagy of temozolomide resistant glioblastoma. J Cell Physiol 2019; 235:3798-3814. [PMID: 31613002 DOI: 10.1002/jcp.29274] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 09/27/2019] [Indexed: 12/19/2022]
Abstract
The first-line chemotherapy treatment for Glioblastoma (GBM) - the most aggressive and frequent brain tumor - is temozolomide (TMZ). The Sonic hedgehog (SHH) pathway is involved with GBM tumorigenesis and TMZ chemoresistance. The role of SHH pathway inhibition in the potentiation of TMZ's effects using T98G, U251, and GBM11 cell lines is investigated herein. The combination of GANT-61 and TMZ over 72 hr suggested a synergistic effect. All TMZ-resistant cell lines displayed a significant decrease in cell viability, increased DNA fragmentation and loss of membrane integrity. For T98G cells, G2 /M arrest was observed, while U251 cells presented a significant increase in reactive oxygen species production and catalase activity. All the cell lines presented acidic vesicles formation correlated to Beclin-1 overexpression. The combined treatment also enhanced GLI1 expression, indicating the presence of select resistant cells. The selective inhibition of the SHH pathway potentiated the cytotoxic effect of TMZ, thus becoming a promising in vitro strategy for GBM treatment.
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Affiliation(s)
- Jessica R Honorato
- Laboratório de Biomedicina do Cérebro, Instituto Estadual do Cérebro Paulo Niemeyer (IECPN), Secretaria de Estado de Saúde, Rio de Janeiro, Brazil.,Programa de Pós-Graduação em Anatomia Patológica, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rachel A Hauser-Davis
- Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Enrico M Saggioro
- Departamento de Saneamento e Saúde Ambiental, Escola Nacional de Saúde Pública (ENSP), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Fábio V Correia
- Departamento de Ciências Naturais, Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Rio de Janeiro, Brazil
| | - Sidney F Sales-Junior
- Programa de Pós-Graduação em Saúde Pública e Meio Ambiente, Escola Nacional de Saúde Pública (ENSP), Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Lorena O S Soares
- Departamento de Ciências Naturais, Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Rio de Janeiro, Brazil
| | - Leandro da R Lima
- Departamento de Ciências Naturais, Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Rio de Janeiro, Brazil
| | - Vivaldo Moura-Neto
- Laboratório de Biomedicina do Cérebro, Instituto Estadual do Cérebro Paulo Niemeyer (IECPN), Secretaria de Estado de Saúde, Rio de Janeiro, Brazil.,Programa de Pós-Graduação em Anatomia Patológica, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Giselle P de F Lopes
- Programa de Pós-Graduação em Anatomia Patológica, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.,Departamento de Biotecnologia Marinha, Instituto de Estudos do Mar Almirante Paulo Moreira (IEAPM)/Coordenação de Pesquisa, Instituto Nacional de Câncer (INCA), Rio de Janeiro, Brazil
| | - Tania C L de S Spohr
- Laboratório de Biomedicina do Cérebro, Instituto Estadual do Cérebro Paulo Niemeyer (IECPN), Secretaria de Estado de Saúde, Rio de Janeiro, Brazil.,Programa de Pós-Graduação em Anatomia Patológica, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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6
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Jovčevska I, Zottel A, Šamec N, Mlakar J, Sorokin M, Nikitin D, Buzdin AA, Komel R. High FREM2 Gene and Protein Expression Are Associated with Favorable Prognosis of IDH-WT Glioblastomas. Cancers (Basel) 2019; 11:cancers11081060. [PMID: 31357584 PMCID: PMC6721429 DOI: 10.3390/cancers11081060] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 07/24/2019] [Accepted: 07/25/2019] [Indexed: 11/16/2022] Open
Abstract
World Health Organization grade IV diffuse gliomas, known as glioblastomas, are the most common malignant brain tumors, and they show poor prognosis. Multimodal treatment of surgery followed by radiation and chemotherapy is not sufficient to increase patient survival, which is 12 to 18 months after diagnosis. Despite extensive research, patient life expectancy has not significantly improved over the last decade. Previously, we identified FREM2 and SPRY1 as genes with differential expression in glioblastoma cell lines compared to nonmalignant astrocytes. In addition, the FREM2 and SPRY1 proteins show specific localization on the surface of glioblastoma cells. In this study, we explored the roles of the FREM2 and SPRY1 genes and their proteins in glioblastoma pathology using human tissue samples. We used proteomic, transcriptomic, and bioinformatics approaches to detect changes at different molecular levels. We demonstrate increased FREM2 protein expression levels in glioblastomas compared to reference samples. At the transcriptomic level, both FREM2 and SPRY1 show increased expression in tissue samples of different glioma grades compared to nonmalignant brain tissue. To broaden our experimental findings, we analyzed The Cancer Genome Atlas glioblastoma patient datasets. We discovered higher FREM2 and SPRY1 gene expression levels in glioblastomas compared to lower grade gliomas and reference samples. In addition, we observed that low FREM2 expression was associated with progression of IDH-mutant low-grade glioma patients. Multivariate analysis showed positive association between FREM2 and favorable prognosis of IDH-wild type glioblastoma. We conclude that FREM2 has an important role in malignant progression of glioblastoma, and we suggest deeper analysis to determine its involvement in glioblastoma pathology.
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Affiliation(s)
- Ivana Jovčevska
- Medical Centre for Molecular Biology, Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia.
| | - Alja Zottel
- Medical Centre for Molecular Biology, Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Neja Šamec
- Medical Centre for Molecular Biology, Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Jernej Mlakar
- Institute of Pathology, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Maxim Sorokin
- Laboratory of Clinical and Genomic Bioinformatics, I. M. Sechenov First Moscow State Medical University, 119146 Moscow, Russia
- Omicsway Corp., Walnut, CA 91789, USA
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Daniil Nikitin
- Laboratory of Clinical and Genomic Bioinformatics, I. M. Sechenov First Moscow State Medical University, 119146 Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Anton A Buzdin
- Laboratory of Clinical and Genomic Bioinformatics, I. M. Sechenov First Moscow State Medical University, 119146 Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
- Oncobox Ltd., 121205 Moscow, Russia
| | - Radovan Komel
- Medical Centre for Molecular Biology, Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia
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7
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Melamed JR, Ioele SA, Hannum AJ, Ullman VM, Day ES. Polyethylenimine-Spherical Nucleic Acid Nanoparticles against Gli1 Reduce the Chemoresistance and Stemness of Glioblastoma Cells. Mol Pharm 2018; 15:5135-5145. [PMID: 30260647 PMCID: PMC6469355 DOI: 10.1021/acs.molpharmaceut.8b00707] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Glioblastoma (GBM) is the most common and lethal primary brain tumor in adults, with nearly 100% of patients ultimately succumbing to the disease. Median patient survival is 15 months, and no standard of care currently exists for recurrent cases. Glioma stem cells (GSCs), a rare and highly aggressive subpopulation of cells within these tumors, have recently emerged as drivers of tumor initiation and recurrence, and a growing body of evidence suggests that they must be completely eradicated to prevent relapse. Toward this goal, we have developed polyethylenimine-wrapped spherical nucleic acid nanoparticles (PEI-SNAs) targeting Gli1, a transcription factor within the Hedgehog signaling pathway that is crucial for the maintenance of GSCs. Here, we demonstrate that Gli1 PEI-SNAs bind scavenger receptors on GBM cells to undergo endocytosis in a caveolae/lipid raft/dynamin-dependent manner. They further achieve ∼30% silencing of tumor-promoting Hedgehog pathway genes and downstream target genes that promote the aggressive, chemoresistant phenotype of GBM. This produces a 30% decrease in proliferation that correlates with a robust onset of GBM cell senescence as well as an ∼60% decrease in metabolic activity with or without cotreatment with temozolomide (TMZ), the frontline chemotherapy for GBM. Most importantly, Gli1 PEI-SNAs impair the self-renewal capacity of GBM cells as indicated by a 30-40% reduction in the expression of stemness genes and further impair the formation of stem-like neurospheres. They also substantially improve neurosphere chemosensitivity as demonstrated by a 2-fold increase in the fraction of cells undergoing apoptosis in response to low doses of TMZ. These results underscore the potential for siRNA therapeutics targeting Gli1 to reduce GBM resistance to therapy and warrant further development of PEI-SNAs and Gli1-targeted therapies to alleviate drug resistance and recurrence for GBM patients.
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Affiliation(s)
- Jilian R. Melamed
- Biomedical Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Stephen A. Ioele
- Biomedical Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Ariel J. Hannum
- Biomedical Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Violet M. Ullman
- Biomedical Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Emily S. Day
- Biomedical Engineering, University of Delaware, Newark, Delaware 19716, United States
- Materials Science & Engineering, University of Delaware, Newark, Delaware 19716, United States
- Helen F. Graham Cancer Center and Research Institute, Newark, Delaware 19713, United States
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8
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Melamed JR, Morgan JT, Ioele SA, Gleghorn JP, Sims-Mourtada J, Day ES. Investigating the role of Hedgehog/GLI1 signaling in glioblastoma cell response to temozolomide. Oncotarget 2018; 9:27000-27015. [PMID: 29930746 PMCID: PMC6007474 DOI: 10.18632/oncotarget.25467] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 05/08/2018] [Indexed: 02/07/2023] Open
Abstract
Resistance to chemotherapy substantially hinders successful glioblastoma (GBM) treatment, contributing to an almost 100% mortality rate. Resistance to the frontline chemotherapy, temozolomide (TMZ), arises from numerous signaling pathways that are deregulated in GBM, including Hedgehog (Hh) signaling. Here, we investigate suppression of Hh signaling as an adjuvant to TMZ using U87-MG and T98G cell lines as in vitro models of GBM. We found that silencing GLI1 with siRNA reduces cell metabolic activity by up to 30% in combination with TMZ and reduces multidrug efflux activity by 2.5-fold. Additionally, pharmacological GLI inhibition modulates nuclear p53 levels and decreases MGMT expression in combination with TMZ. While we surprisingly found that silencing GLI1 does not induce apoptosis in the absence of TMZ co-treatment, we discovered silencing GLI1 without TMZ co-treatment induces senescence as evidenced by a significant 2.3-fold increase in senescence associated β-galactosidase staining, and this occurs in a loss of PTEN-dependent manner. Finally, we show that GLI inhibition increases apoptosis in glioma stem-like cells by up to 6.8-fold in combination with TMZ, and this reduces the size and number of neurospheres grown from glioma stem-like cells. In aggregate, our data warrant the continued investigation of Hh pathway inhibitors as adjuvants to TMZ chemotherapy and highlight the importance of identifying signaling pathways that determine whether co-treatment will be successful.
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Affiliation(s)
| | - Joshua T Morgan
- Bioengineering, University of California, Riverside, CA, USA
| | - Stephen A Ioele
- Biomedical Engineering, University of Delaware, Newark, DE, USA
| | - Jason P Gleghorn
- Biomedical Engineering, University of Delaware, Newark, DE, USA.,Biological Sciences, University of Delaware, Newark, DE, USA
| | | | - Emily S Day
- Biomedical Engineering, University of Delaware, Newark, DE, USA.,Helen F. Graham Cancer Center and Research Institute, Newark, DE, USA.,Materials Science and Engineering, University of Delaware, Newark, DE, USA
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9
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Kast RE, Skuli N, Karpel-Massler G, Frosina G, Ryken T, Halatsch ME. Blocking epithelial-to-mesenchymal transition in glioblastoma with a sextet of repurposed drugs: the EIS regimen. Oncotarget 2017; 8:60727-60749. [PMID: 28977822 PMCID: PMC5617382 DOI: 10.18632/oncotarget.18337] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 05/12/2017] [Indexed: 12/11/2022] Open
Abstract
This paper outlines a treatment protocol to run alongside of standard current treatment of glioblastoma- resection, temozolomide and radiation. The epithelial to mesenchymal transition (EMT) inhibiting sextet, EIS Regimen, uses the ancillary attributes of six older medicines to impede EMT during glioblastoma. EMT is an actively motile, therapy-resisting, low proliferation, transient state that is an integral feature of cancers’ lethality generally and of glioblastoma specifically. It is believed to be during the EMT state that glioblastoma’s centrifugal migration occurs. EMT is also a feature of untreated glioblastoma but is enhanced by chemotherapy, by radiation and by surgical trauma. EIS Regimen uses the antifungal drug itraconazole to block Hedgehog signaling, the antidiabetes drug metformin to block AMP kinase (AMPK), the analgesic drug naproxen to block Rac1, the anti-fibrosis drug pirfenidone to block transforming growth factor-beta (TGF-beta), the psychiatric drug quetiapine to block receptor activator NFkB ligand (RANKL) and the antibiotic rifampin to block Wnt- all by their previously established ancillary attributes. All these systems have been identified as triggers of EMT and worthy targets to inhibit. The EIS Regimen drugs have a good safety profile when used individually. They are not expected to have any new side effects when combined. Further studies of the EIS Regimen are needed.
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Affiliation(s)
| | - Nicolas Skuli
- INSERM, Centre de Recherches en Cancérologie de Toulouse, CRCT, Inserm/Université Toulouse III, Paul Sabatier, Hubert Curien, Toulouse, France
| | - Georg Karpel-Massler
- Department of Neurosurgery, Ulm University Hospital, Albert-Einstein-Allee, Ulm, Germany
| | - Guido Frosina
- Mutagenesis & Cancer Prevention Unit, IRCCS Azienda Ospedaliera Universitaria San Martino, IST Istituto Nazionale per la Ricerca sul Cancro, Largo Rosanna Benzi, Genoa, Italy
| | - Timothy Ryken
- Department of Neurosurgery, University of Kansas, Lawrence, KS, USA
| | - Marc-Eric Halatsch
- Department of Neurosurgery, Ulm University Hospital, Albert-Einstein-Allee, Ulm, Germany
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10
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Liu M, Xu P, O'Brien T, Shen S. Multiple roles of Ulk4 in neurogenesis and brain function. NEUROGENESIS 2017; 4:e1313646. [PMID: 28596978 DOI: 10.1080/23262133.2017.1313646] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 11/27/2016] [Accepted: 01/18/2017] [Indexed: 10/19/2022]
Abstract
Neurogenesis is essential for proper brain formation and function, and abnormal neural proliferation is an underlying neuropathology of many brain disorders. Recent advances on adult neurogenesis demonstrate that neural stem cells (NSCs) at the subventricular zone (SVZ) are largely derived during mid-embryonic neurogenesis from a subset of cells, which slow down in their pace of cell division,1 become quiescent cells and can be reactivated in need.2 The NSCs at birth constitute the stem cell pool for both postnatal oligodendrogenesis3 and adult neurogenesis.1,2 However, little is known about factors that control the size of NSC pool. The article published in Stem Cells on Jun 14, 2016 by Liu and colleagues described a member of the Unc-51-like serine/threonine kinase family, Ulk4, which plays a critical role in regulating the NSC pool size.4 Authors presented evidence of cell cycle-dependent Ulk4 expression in vitro and in vivo, and reduced NSC pool in targetedly disrupted Ulk4 newborn mice, with disturbed pathways of cell cycle regulation and WNT signaling (Fig. 1), suggesting that ULK4 may be associated with neurodevelopmental, neuropsychiatric as well as neurodegenerative diseases.
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Affiliation(s)
- Min Liu
- Regenerative Medicine Institute, School of Medicine, National University of Ireland (NUI) Galway, Galway, Ireland
| | - Ping Xu
- State Key Laboratory of Proteomics, National Center for Protein Sciences, Beijing Proteome Research Center, National Engineering Research Center for Protein Drugs, Beijing Institute of Radiation Medicine, Beijing, China
| | - Timothy O'Brien
- Regenerative Medicine Institute, School of Medicine, National University of Ireland (NUI) Galway, Galway, Ireland
| | - Sanbing Shen
- Regenerative Medicine Institute, School of Medicine, National University of Ireland (NUI) Galway, Galway, Ireland
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11
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Azimi V, Chang YH, Thibault G, Smith J, Tsujikawa T, Kukull B, Jensen B, Corless C, Margolin A, Gray JW. BREAST CANCER HISTOPATHOLOGY IMAGE ANALYSIS PIPELINE FOR TUMOR PURITY ESTIMATION. PROCEEDINGS. IEEE INTERNATIONAL SYMPOSIUM ON BIOMEDICAL IMAGING 2017; 2017:1137-1140. [PMID: 30364881 PMCID: PMC6198647 DOI: 10.1109/isbi.2017.7950717] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The translation of genomic sequencing technology to the clinic has greatly advanced personalized medicine. However, the presence of normal cells in tumors is a confounding factor in genome sequence analysis. Tumor purity, or the percentage of cancerous cells in whole tissue section, is a correction factor that can be used to improve the clinical utility of genomic sequencing. Currently, tumor purity is estimated visually by expert pathologists; however, it has been shown that there exist vast inter-observer discrepancies in tumor purity scoring. In this paper, we propose a quantitative image analysis pipeline for tumor purity estimation and provide a systematic comparison between pathologists' scores and our image-based tumor purity estimation.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Joe W Gray
- Oregon Health and Science University (OHSU)
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12
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Liu M, Guan Z, Shen Q, Flinter F, Domínguez L, Ahn JW, Collier DA, O'Brien T, Shen S. Ulk4 Regulates Neural Stem Cell Pool. Stem Cells 2016; 34:2318-31. [PMID: 27300315 DOI: 10.1002/stem.2423] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 03/29/2016] [Accepted: 04/24/2016] [Indexed: 12/26/2022]
Abstract
The size of neural stem cell (NSC) pool at birth determines the starting point of adult neurogenesis. Aberrant neurogenesis is associated with major mental illness, in which ULK4 is proposed as a rare risk factor. Little is known about factors regulating the NSC pool, or function of the ULK4. Here, we showed that Ulk4(tm1a/tm1a) mice displayed a dramatically reduced NSC pool at birth. Ulk4 was expressed in a cell cycle-dependent manner and peaked in G2/M phases. Targeted disruption of the Ulk4 perturbed mid-neurogenesis and significantly reduced cerebral cortex in postnatal mice. Pathway analyses of dysregulated genes in Ulk4(tm1a/tm1a) mice revealed Ulk4 as a key regulator of cell cycle and NSC proliferation, partially through regulation of the Wnt signaling. In addition, we identified hemizygous deletion of ULK4 gene in 1.2/1,000 patients with pleiotropic symptoms including severe language delay and learning difficulties. ULK4, therefore, may significantly contribute to neurodevelopmental, neuropsychiatric, and neurodegenerative disorders. Stem Cells 2016;34:2318-2331.
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Affiliation(s)
- Min Liu
- Regenerative Medicine Institute, School of Medicine, National University of Ireland (NUI) Galway, Galway, Ireland
| | - Zhenlong Guan
- Department of Physiology, College of Life Science, Hebei Normal University, Shijiazhuang, People's Republic of China
| | - Qin Shen
- Center for Stem Cell Biology and Regenerative Medicine, Center for Life Sciences, School of Medicine, Tsinghua University, Beijing, People's Republic of China
| | - Frances Flinter
- Genetics Department, Guy's & St. Thomas' NHS Foundation Trust, Guy's Hospital, Great Maze Pond, London, United Kingdom
| | - Laura Domínguez
- Regenerative Medicine Institute, School of Medicine, National University of Ireland (NUI) Galway, Galway, Ireland
| | - Joo Wook Ahn
- Genetics Laboratories, Guy's Hospital, London, United Kingdom
| | - David A Collier
- Eli Lilly and Company Ltd. Erl Wood Manor, Windlesham, Surrey, United Kingdom
| | - Timothy O'Brien
- Regenerative Medicine Institute, School of Medicine, National University of Ireland (NUI) Galway, Galway, Ireland
| | - Sanbing Shen
- Regenerative Medicine Institute, School of Medicine, National University of Ireland (NUI) Galway, Galway, Ireland. sanbing.shen@nuigalway
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13
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Yakoub AM, Shukla D. Autophagy stimulation abrogates herpes simplex virus-1 infection. Sci Rep 2015; 5:9730. [PMID: 25856282 PMCID: PMC4929686 DOI: 10.1038/srep09730] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 03/18/2015] [Indexed: 01/07/2023] Open
Abstract
Herpes simplex virus-1 (HSV-1) is a double-stranded DNA virus that causes life-long infections. HSV-1 infections may lead to herpetic stromal keratitis that may advance to corneal blindness. HSV-1 infections can also cause fatal conditions, such as herpes encephalitis, or neonatal disease. A major virulence mechanism of HSV-1 is the control of autophagy, an innate immune defense strategy that could otherwise degrade viral particles. Here, to investigate a new mechanism for antiviral therapy, we tested the effect of various autophagy inducers (physiological and pharmacological) on infection. Autophagy stimulation was confirmed to significantly suppress HSV-1 infection in various cell types, without affecting cell viability. This study establishes the importance of autophagy for regulating HSV-1 infection, and provides a proof-of-principle evidence for a novel antiviral mechanism.
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Affiliation(s)
- Abraam M Yakoub
- 1] Department of Microbiology and Immunology, University of Illinois, Chicago. IL USA, 60612 [2] Department of Ophthalmology and Visual Sciences, University of Illinois Medical Center, Chicago. IL USA, 60612
| | - Deepak Shukla
- 1] Department of Microbiology and Immunology, University of Illinois, Chicago. IL USA, 60612 [2] Department of Ophthalmology and Visual Sciences, University of Illinois Medical Center, Chicago. IL USA, 60612
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