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Genaro-Mattos TC, Korade Z, Sahar NE, Angeli JPF, Mirnics K, Peeples ES. Enhancing 7-dehydrocholesterol suppresses brain ferroptosis and tissue injury after neonatal hypoxia-ischemia. Sci Rep 2024; 14:7924. [PMID: 38575644 PMCID: PMC10994918 DOI: 10.1038/s41598-024-58579-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 04/01/2024] [Indexed: 04/06/2024] Open
Abstract
Neonatal hypoxic-ischemic brain injury (HIBI) results in part from excess reactive oxygen species and iron-dependent lipid peroxidation (i.e. ferroptosis). The vitamin D precursor 7-dehydrocholesterol (7-DHC) may inhibit iron-dependent lipid peroxidation. Primary neurons underwent oxygen and glucose deprivation (OGD) injury and treatment with 7-DHC-elevating medications such as cariprazine (CAR) or vehicle. Postnatal day 9 mice underwent sham surgery or carotid artery ligation and hypoxia and received intraperitoneal CAR. In neurons, CAR administration resulted in significantly increased cell survival compared to vehicle controls, whether administered 48 h prior to or 30 min after OGD, and was associated with increased 7-DHC. In the mouse model, malondialdehyde and infarct area significantly increased after HIBI in the vehicle group, which were attenuated by post-treatment with CAR and were negatively correlated with tissue 7-DHC concentrations. Elevating 7-DHC concentrations with CAR was associated with improved cellular and tissue viability after hypoxic-ischemic injury, suggesting a novel therapeutic avenue.
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Affiliation(s)
- Thiago C Genaro-Mattos
- Munroe-Meyer Institute for Genetics and Rehabilitation, University of Nebraska Medical Center, Omaha, NE, 68106, USA
| | - Zeljka Korade
- Department of Pediatrics, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Child Health Research Institute, Omaha, NE, 68198, USA
| | - Namood-E Sahar
- Department of Pediatrics, University of Nebraska Medical Center, Omaha, NE, 68198, USA
- Child Health Research Institute, Omaha, NE, 68198, USA
| | - Jose Pedro Friedmann Angeli
- Rudolf Virchow Zentrum - Center for Integrative and Translational Bioimaging, University of Würzburg, Würzburg, Germany
| | - Károly Mirnics
- Munroe-Meyer Institute for Genetics and Rehabilitation, University of Nebraska Medical Center, Omaha, NE, 68106, USA
- Child Health Research Institute, Omaha, NE, 68198, USA
| | - Eric S Peeples
- Department of Pediatrics, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
- Child Health Research Institute, Omaha, NE, 68198, USA.
- Department of Pediatrics, Children's Nebraska, Omaha, NE, 68114, USA.
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Ashraf MA, Sahar NE, Kamran M, Alam J. Impact of Self-Efficacy and Perfectionism on Academic Procrastination among University Students in Pakistan. Behav Sci (Basel) 2023; 13:537. [PMID: 37503984 PMCID: PMC10376137 DOI: 10.3390/bs13070537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/19/2023] [Accepted: 06/20/2023] [Indexed: 07/29/2023] Open
Abstract
This study aimed to evaluate the impact of self-efficacy and perfectionism on academic procrastination among university students and its differences among genders in Pakistan. It was hypothesized that self-efficacy and perfectionism would significantly impact academic procrastination and that there is a significant difference in students' views concerning their gender. The sample comprised 405 university students, 104 male and 301 female. The study used the general self-efficacy scale, the multidimensional perfectionism scale, and the academic procrastination scale to measure the constructs. SmartPLS 4 was applied for the analysis of the data. The results indicated that all three variables-self-efficacy, perfectionism, and academic procrastination-were present among university students. Perfectionism showed a significant effect on academic procrastination. However, self-efficacy showed no significant effect on academic procrastination. Further, no significant difference was found in students' views concerning their gender. The findings provide significant evidence for stakeholders to improve academic procrastination among university students.
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Affiliation(s)
| | - Namood-E Sahar
- National Institute of Psychology, Quaid e Azam University, Islamabad 04403, Pakistan
| | - Muhammad Kamran
- Department of Education, University of Loralai, Balochistan 85200, Pakistan
| | - Jan Alam
- Department of Education, University of Wah, Rawalpindi 47010, Pakistan
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Vann KR, Pal D, Smith AL, Sahar NE, Krishnaiah M, El-Gamal D, Kutateladze TG. Combinatorial inhibition of BTK, PI3K-AKT and BRD4-MYC as a strategy for treatment of mantle cell lymphoma. Mol Biomed 2022; 3:2. [PMID: 35031886 PMCID: PMC8760370 DOI: 10.1186/s43556-021-00066-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 12/17/2021] [Indexed: 11/10/2022] Open
Abstract
Mantle cell lymphoma (MCL) is a subtype of non-Hodgkin's lymphoma characterized by poor prognosis. The complexity of MCL pathogenesis arises from aberrant activities of diverse signaling pathways, including BTK, PI3K-AKT-mTOR and MYC-BRD4. Here, we report that MCL-related signaling pathways can be altered by a single small molecule inhibitor, SRX3305. Binding and kinase activities along with resonance changes in NMR experiments reveal that SRX3305 targets both bromodomains of BRD4 and is highly potent in inhibition of the PI3K isoforms α, γ and δ, as well as BTK and the drug-resistant BTK mutant. Preclinical investigations herein reveal that SRX3305 perturbs the cell cycle, promotes apoptosis in MCL cell lines and shows dose dependent anti-proliferative activity in both MCL and drug-resistant MCL cells. Our findings underscore the effectiveness of novel multi-action small molecule inhibitors for potential treatment of MCL.
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Affiliation(s)
- Kendra R Vann
- Department of Pharmacology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Dhananjaya Pal
- Molecular Targeted Therapeutics Laboratory, Levine Cancer Institute, Charlotte, NC, USA
- Division of Hematology and Oncology, Department of Pediatrics, Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
| | - Audrey L Smith
- Eppley Institute for Research in Cancer and Allied Diseases, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Namood-E Sahar
- Division of Hematology and Oncology, Department of Pediatrics, Moores Cancer Center, University of California San Diego, La Jolla, CA, USA
| | - Maddeboina Krishnaiah
- Molecular Targeted Therapeutics Laboratory, Levine Cancer Institute, Charlotte, NC, USA
| | - Dalia El-Gamal
- Eppley Institute for Research in Cancer and Allied Diseases, Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Tatiana G Kutateladze
- Department of Pharmacology, University of Colorado School of Medicine, Aurora, CO, USA.
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Sultan A, Sahar NE, Riaz SK, Qadir J, Waqar SH, Haq F, Khaliq T, Malik MFA. Metadherin (MTDH) overexpression significantly correlates with advanced tumor grade and stages among colorectal cancer patients. Mol Biol Rep 2021; 48:7999-8007. [PMID: 34741710 DOI: 10.1007/s11033-021-06834-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 10/12/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Colorectal cancer is the 4th leading cause of cancer related deaths affecting both men and women worldwide. In the present study, any probable role of MTDH mRNA expression in CRC tumorigenesis was explored using both discovery and validation cohorts. METHODS AND RESULTS After prior ethical and biosafety approvals, tumor tissue samples along with their adjacent controls were collected for this study from Pakistani patients diagnosed with colorectal cancer. RNA was isolated using Trizol reagent, followed by cDNA synthesis. Transcript analysis of MTDH was performed by using qPCR. Moreover, genome-wide expression of MTDH was also determined through micro-array data analysis using BRB-array tools software. MTDH expression was significantly high in tumor tissue samples (p < 0.05) compared to their respective controls. Likewise, results of microarray analysis also revealed overamplification of MTDH in tumor samples as compared to controls. Expression of MTDH was also found to be positively correlated with KI-67 index (p < 0.05) and were observed to be significantly upregulated in advance tumor grade (p < 0.05) and stage (p < 0.05). However, no association of MTDH overexpression with age and gender could be established. CONCLUSION Hence, it can be concluded that MTDH is a core element that plays a pivotal role in colorectal tumorigenesis irrespective of patient's age and gender. Molecular insight into the tumor microenvironment revealed MTDH as a niche, representing distinctive framework for cancer progression, thus, making it an innovative target strategy for colorectal cancer treatment.
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Affiliation(s)
- Aimen Sultan
- Department of Biosciences, COMSATS University Islamabad, Park Road, Islamabad, Pakistan
| | - Namood-E Sahar
- Department of Biosciences, COMSATS University Islamabad, Park Road, Islamabad, Pakistan.,College of Medicine, University of Nebraska, Medical Center, Omaha, USA
| | - Syeda Kiran Riaz
- Department of Molecular Biology, Shaheed Zulfiqar Ali Bhutto Medical University, Islamabad, Pakistan
| | - Javeria Qadir
- Department of Biosciences, COMSATS University Islamabad, Park Road, Islamabad, Pakistan.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Shahzad Hussain Waqar
- Department of General Surgery, Shaheed Zulfiqar Ali Bhutto Medical University, Islamabad, Pakistan
| | - Farhan Haq
- Department of Biosciences, COMSATS University Islamabad, Park Road, Islamabad, Pakistan
| | - Tanwir Khaliq
- Department of General Surgery, Shaheed Zulfiqar Ali Bhutto Medical University, Islamabad, Pakistan
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Qadir J, Riaz SK, Sahar NE, Aman D, Khan MJ, Malik MFA. Transcriptional elucidation of tumor necrosis factor-α-mediated nuclear factor-κB1 activation in breast cancer cohort of Pakistan. J Cancer Res Ther 2021; 16:1443-1448. [PMID: 33342810 DOI: 10.4103/jcrt.jcrt_484_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background Initiation, promotion, progression, and metastasis of mammary tumors are mediated by dysregulation of multiple genes involved in various signaling pathways. Expressional variation of these molecules significantly influences cancer cell proliferation in breast cancer. Aims and Objectives In the current study, tumor necrosis factor-alpha (TNF-α) and its downstream effector nuclear factor kappa-B1 (NF-κB1) mean transcript levels were explored and associated with molecular subtypes in breast cancer cohort of Pakistan. Freshly excised tumors (n = 150) along with background tissues were collected for RNA isolation and cDNA synthesis. Materials and Methods Quantitative polymerase chain reaction was carried out for quantification of TNF-α, NF-κB1, and β-actin gene transcripts along with estrogen receptor, progesterone receptor, HER2, and Ki-67, followed by statistical analysis. Results For TNF-α and NF-κB1, 95% and 77% of the cohort was found to be positive, respectively. Both of these molecules were found to be significantly upregulated in tumors when compared against their respective controls (P < 0.0001). Association of TNF-α and NF-κB1 with late clinical stages, poorly differentiated tumors, increased tumor size, nodal involvement, and metastasis was observed to be statistically significant (P < 0.05). Strong positive correlation was established between TNF-α and NF-κB1(r = 0.465, P< 0.05). Moreover, mean transcript levels of TNF-α and NF-κB1 were significantly elevated in Luminal A and Luminal B subtypes of breast cancer patients, respectively. Conclusion Strong positive correlation between TNF-α and NF-κB1 proposed the putative role of these molecules as prognostic biomarkers in breast cancer.
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Affiliation(s)
- Javeria Qadir
- Department of Biosciences, COMSATS Institute of Information Technology, Islamabad, Pakistan
| | - Syeda Kiran Riaz
- Department of Biosciences, COMSATS Institute of Information Technology, Islamabad, Pakistan
| | - Namood-E Sahar
- Department of Biosciences, COMSATS Institute of Information Technology, Islamabad, Pakistan
| | - Durkhshan Aman
- Department of Biosciences, COMSATS Institute of Information Technology, Islamabad, Pakistan
| | - Muhammad Jawad Khan
- Department of Biosciences, COMSATS Institute of Information Technology, Islamabad, Pakistan
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Qadir J, Riaz SK, Taj K, Sattar N, Sahar NE, Khan JS, Kayani MA, Haq F, Arshad Malik MF. Increased YAP1 expression is significantly associated with breast cancer progression, metastasis and poor survival. Future Oncol 2021; 17:2725-2734. [PMID: 33880946 DOI: 10.2217/fon-2020-1080] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
YAP1 plays a key role as a transcriptional coactivator in the Hippo pathway. Based on conflicting reports regarding YAP1 function in cancer, this study discerned its role in breast carcinogenesis. First, a systematic review of salient breast cancer studies targeting YAP1 dysregulation was performed. Additionally, freshly excised tumor specimens of approximately 200 breast cancer patients were processed for quantification of YAP1 expression at mRNA and protein levels using quantitative PCR and immunohistochemistry, respectively. YAP1 expression was nine folds higher in tumors versus controls and significantly associated with metastasis (p < 0.05) and poor survival in Pakistani breast cancer patients. These findings establish the role of YAP1 overexpression in tumorigenesis and metastasis. Hence, YAP1 inhibition may be considered a possible therapeutic strategy.
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Affiliation(s)
- Javeria Qadir
- Department of Biosciences, Cancer Genetics Lab, COMSATS University Islamabad, Islamabad, 44000, Pakistan
| | - Syeda Kiran Riaz
- Department of Molecular Biology, Shaheed Zulfiqar Ali Bhutto Medical University, Islamabad, 44000, Pakistan
| | - Kiran Taj
- Department of Biosciences, Cancer Genetics Lab, COMSATS University Islamabad, Islamabad, 44000, Pakistan
| | - Natasha Sattar
- Department of Biosciences, Cancer Genetics Lab, COMSATS University Islamabad, Islamabad, 44000, Pakistan
| | - Namood-E Sahar
- Department of Biosciences, Cancer Genetics Lab, COMSATS University Islamabad, Islamabad, 44000, Pakistan.,College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Jahangir Sarwar Khan
- Department of General Surgery, Rawalpindi Medical University, Rawalpindi, 46000, Pakistan
| | - Mahmood Akhtar Kayani
- Department of Biosciences, Cancer Genetics Lab, COMSATS University Islamabad, Islamabad, 44000, Pakistan
| | - Farhan Haq
- Department of Biosciences, Cancer Genetics Lab, COMSATS University Islamabad, Islamabad, 44000, Pakistan
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