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Sarker DB, Xue Y, Mahmud F, Jocelyn JA, Sang QXA. Interconversion of Cancer Cells and Induced Pluripotent Stem Cells. Cells 2024; 13:125. [PMID: 38247819 PMCID: PMC10814385 DOI: 10.3390/cells13020125] [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: 12/19/2023] [Revised: 01/07/2024] [Accepted: 01/08/2024] [Indexed: 01/23/2024] Open
Abstract
Cancer cells, especially cancer stem cells (CSCs), share many molecular features with induced pluripotent stem cells (iPSCs) that enable the derivation of induced pluripotent cancer cells by reprogramming malignant cells. Conversely, normal iPSCs can be converted into cancer stem-like cells with the help of tumor microenvironment components and genetic manipulation. These CSC models can be utilized in oncogenic initiation and progression studies, understanding drug resistance, and developing novel therapeutic strategies. This review summarizes the role of pluripotency factors in the stemness, tumorigenicity, and therapeutic resistance of cancer cells. Different methods to obtain iPSC-derived CSC models are described with an emphasis on exposure-based approaches. Culture in cancer cell-conditioned media or cocultures with cancer cells can convert normal iPSCs into cancer stem-like cells, aiding the examination of processes of oncogenesis. We further explored the potential of reprogramming cancer cells into cancer-iPSCs for mechanistic studies and cancer dependencies. The contributions of genetic, epigenetic, and tumor microenvironment factors can be evaluated using these models. Overall, integrating iPSC technology into cancer stem cell research holds significant promise for advancing our knowledge of cancer biology and accelerating the development of innovative and tailored therapeutic interventions.
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Affiliation(s)
- Drishty B. Sarker
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, USA; (D.B.S.); (Y.X.); (F.M.); (J.A.J.)
| | - Yu Xue
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, USA; (D.B.S.); (Y.X.); (F.M.); (J.A.J.)
| | - Faiza Mahmud
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, USA; (D.B.S.); (Y.X.); (F.M.); (J.A.J.)
| | - Jonathan A. Jocelyn
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, USA; (D.B.S.); (Y.X.); (F.M.); (J.A.J.)
| | - Qing-Xiang Amy Sang
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, USA; (D.B.S.); (Y.X.); (F.M.); (J.A.J.)
- Institute of Molecular Biophysics, Florida State University, Tallahassee, FL 32306-4380, USA
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Risinskaya N, Gladysheva M, Abdulpatakhov A, Chabaeva Y, Surimova V, Aleshina O, Yushkova A, Dubova O, Kapranov N, Galtseva I, Kulikov S, Obukhova T, Sudarikov A, Parovichnikova E. DNA Copy Number Alterations and Copy Neutral Loss of Heterozygosity in Adult Ph-Negative Acute B-Lymphoblastic Leukemia: Focus on the Genes Involved. Int J Mol Sci 2023; 24:17602. [PMID: 38139431 PMCID: PMC10744257 DOI: 10.3390/ijms242417602] [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: 11/10/2023] [Revised: 12/08/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023] Open
Abstract
The landscape of chromosomal aberrations in the tumor cells of the patients with B-ALL is diverse and can influence the outcome of the disease. Molecular karyotyping at the onset of the disease using chromosomal microarray (CMA) is advisable to identify additional molecular factors associated with the prognosis of the disease. Molecular karyotyping data for 36 patients with Ph-negative B-ALL who received therapy according to the ALL-2016 protocol are presented. We analyzed copy number alterations and their prognostic significance for CDKN2A/B, DMRTA, DOCK8, TP53, SMARCA2, PAX5, XPA, FOXE1, HEMGN, USP45, RUNX1, NF1, IGF2BP1, ERG, TMPRSS2, CRLF2, FGFR3, FLNB, IKZF1, RUNX2, ARID1B, CIP2A, PIK3CA, ATM, RB1, BIRC3, MYC, IKZF3, ETV6, ZNF384, PTPRJ, CCL20, PAX3, MTCH2, TCF3, IKZF2, BTG1, BTG2, RAG1, RAG2, ELK3, SH2B3, EP300, MAP2K2, EBI3, MEF2D, MEF2C, CEBPA, and TBLXR1 genes, choosing t(4;11) and t(7;14) as reference events. Of the 36 patients, only 5 (13.8%) had a normal molecular karyotype, and 31 (86.2%) were found to have various molecular karyotype abnormalities-104 deletions, 90 duplications or amplifications, 29 cases of cnLOH and 7 biallelic/homozygous deletions. We found that 11q22-23 duplication involving the BIRC3, ATM and MLL genes was the most adverse prognostic event in the study cohort.
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Affiliation(s)
- Natalya Risinskaya
- National Medical Research Center for Hematology, 125167 Moscow, Russia; (M.G.); (A.A.); (Y.C.); (V.S.); (O.A.); (A.Y.); (O.D.); (N.K.); (I.G.); (S.K.); (A.S.); (E.P.)
| | - Maria Gladysheva
- National Medical Research Center for Hematology, 125167 Moscow, Russia; (M.G.); (A.A.); (Y.C.); (V.S.); (O.A.); (A.Y.); (O.D.); (N.K.); (I.G.); (S.K.); (A.S.); (E.P.)
| | - Abdulpatakh Abdulpatakhov
- National Medical Research Center for Hematology, 125167 Moscow, Russia; (M.G.); (A.A.); (Y.C.); (V.S.); (O.A.); (A.Y.); (O.D.); (N.K.); (I.G.); (S.K.); (A.S.); (E.P.)
| | - Yulia Chabaeva
- National Medical Research Center for Hematology, 125167 Moscow, Russia; (M.G.); (A.A.); (Y.C.); (V.S.); (O.A.); (A.Y.); (O.D.); (N.K.); (I.G.); (S.K.); (A.S.); (E.P.)
| | - Valeriya Surimova
- National Medical Research Center for Hematology, 125167 Moscow, Russia; (M.G.); (A.A.); (Y.C.); (V.S.); (O.A.); (A.Y.); (O.D.); (N.K.); (I.G.); (S.K.); (A.S.); (E.P.)
| | - Olga Aleshina
- National Medical Research Center for Hematology, 125167 Moscow, Russia; (M.G.); (A.A.); (Y.C.); (V.S.); (O.A.); (A.Y.); (O.D.); (N.K.); (I.G.); (S.K.); (A.S.); (E.P.)
| | - Anna Yushkova
- National Medical Research Center for Hematology, 125167 Moscow, Russia; (M.G.); (A.A.); (Y.C.); (V.S.); (O.A.); (A.Y.); (O.D.); (N.K.); (I.G.); (S.K.); (A.S.); (E.P.)
| | - Olga Dubova
- National Medical Research Center for Hematology, 125167 Moscow, Russia; (M.G.); (A.A.); (Y.C.); (V.S.); (O.A.); (A.Y.); (O.D.); (N.K.); (I.G.); (S.K.); (A.S.); (E.P.)
- Institute of Biodesign and Modeling of Complex Systems, I.M. Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Nikolay Kapranov
- National Medical Research Center for Hematology, 125167 Moscow, Russia; (M.G.); (A.A.); (Y.C.); (V.S.); (O.A.); (A.Y.); (O.D.); (N.K.); (I.G.); (S.K.); (A.S.); (E.P.)
| | - Irina Galtseva
- National Medical Research Center for Hematology, 125167 Moscow, Russia; (M.G.); (A.A.); (Y.C.); (V.S.); (O.A.); (A.Y.); (O.D.); (N.K.); (I.G.); (S.K.); (A.S.); (E.P.)
| | - Sergey Kulikov
- National Medical Research Center for Hematology, 125167 Moscow, Russia; (M.G.); (A.A.); (Y.C.); (V.S.); (O.A.); (A.Y.); (O.D.); (N.K.); (I.G.); (S.K.); (A.S.); (E.P.)
| | - Tatiana Obukhova
- National Medical Research Center for Hematology, 125167 Moscow, Russia; (M.G.); (A.A.); (Y.C.); (V.S.); (O.A.); (A.Y.); (O.D.); (N.K.); (I.G.); (S.K.); (A.S.); (E.P.)
| | - Andrey Sudarikov
- National Medical Research Center for Hematology, 125167 Moscow, Russia; (M.G.); (A.A.); (Y.C.); (V.S.); (O.A.); (A.Y.); (O.D.); (N.K.); (I.G.); (S.K.); (A.S.); (E.P.)
| | - Elena Parovichnikova
- National Medical Research Center for Hematology, 125167 Moscow, Russia; (M.G.); (A.A.); (Y.C.); (V.S.); (O.A.); (A.Y.); (O.D.); (N.K.); (I.G.); (S.K.); (A.S.); (E.P.)
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Khan N, Rehman B, Almanaa TN, Aljahdali SM, Waheed Y, Ullah A, Asfandayar M, Al-Harbi AI, Naz T, Arshad M, Sanami S, Ahmad S. A novel therapeutic approach to prevent Helicobacter pylori induced gastric cancer using networking biology, molecular docking, and simulation approaches. J Biomol Struct Dyn 2023:1-14. [PMID: 37962871 DOI: 10.1080/07391102.2023.2279276] [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: 11/08/2022] [Accepted: 10/27/2023] [Indexed: 11/15/2023]
Abstract
Helicobacter pylori infects 50% of the world population and in 80% of cases, the infection progresses to the point where an ulcer develops leading to gastric cancer (GC). This study aimed to prevent GC by predicting Hub genes that are inducing GC. Furthermore, the study objective was to screen inhibitory molecules that block the function of predicted genes through several biophysical approaches. These proteins, such as Mucin 4 (MUC4) and Baculoviral IAP repeat containing 3 (BIRC3), had LogFC values of 2.28 and 3.39, respectively, and were found to be substantially expressed in those who had H. pylori infection. The MUC4 and BIRC3 inhibit apoptosis of infected cells and promote cancerous cell survival. The proteins were examined for their Physico-chemical characteristics, 3D structure and secondary structure analysis, solvent assessable surface area (SASA), active site identification, and network analysis. The MUC4 and BIRC3 expression was inhibited by docking eighty different compounds collected from the ZINC database. Fifty-seven compounds were successfully docked into the active site resulting in the lowest binding energy scores. The ZINC585267910 and ZINC585268691 compounds showed the lowest binding energy of -8.5 kcal/mol for MUC4 and -7.1 kcal/mol for BIRC3, respectively, and were considered best-docked solutions for molecular dynamics simulations. The mean root mean square deviation (RMSD) value for the ZINC585267910-MUC4 complex was 0.86 Å and the ZINC585268691-BIRC3 complex was 1.01 Å. The net MM/GBSA energy value of the ZINC585267910-MUC4 complex estimated was -46.84 kcal/mol and that of the ZINC585268691-BIRC3 complex was -44.84 kcal/mol. In a nutshell, the compounds might be investigated further as an inhibitor of the said proteins to stop the progress of GC induced by H. pylori.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Nadeem Khan
- Department of Health and Biological Sciences, Abasyn University, Peshawar, Pakistan
| | - Bushra Rehman
- Institute of Biotechnology and Microbiology, Bacha Khan University, Charsadaa, Pakistan
| | - Taghreed N Almanaa
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | | | - Yasir Waheed
- Office of Research, Innovation and Commercialization, Shaheed Zulfiqar Ali Bhutto Medical University (SZABMU), Islamabad, Pakistan
- Gilbert and Rose-Marie Chagoury School of Medicine, Lebanese American University, Byblos, Lebanon
| | - Asad Ullah
- Department of Health and Biological Sciences, Abasyn University, Peshawar, Pakistan
| | - Muhammad Asfandayar
- Department of Health and Biological Sciences, Abasyn University, Peshawar, Pakistan
| | - Alhanouf I Al-Harbi
- Department of Medical Laboratory, College of Applied Medical Sciences, Taibah University, Yanbu, Saudi Arabia
| | - Tahira Naz
- Department of Chemical and Life Sciences, Qurtuba University of Science and Technology, Peshawar, Pakistan
| | - Muhammad Arshad
- Center of Biotechnology and Microbiology, University of Peshawar, Peshawar, Pakistan
| | - Samira Sanami
- Nervous System Stem Cells Research Center, Semnan University of Medical Sciences, Semnan, Iran
| | - Sajjad Ahmad
- Department of Health and Biological Sciences, Abasyn University, Peshawar, Pakistan
- Department of Computer Science, Virginia Tech, Blacksburg, VA, USA
- Department of Natural Sciences, Lebanese American University, Beirut, Lebanon
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4
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Wu Q, Berglund AE, Macaulay RJ, Etame AB. Epigenetic Activation of TUSC3 Sensitizes Glioblastoma to Temozolomide Independent of MGMT Promoter Methylation Status. Int J Mol Sci 2023; 24:15179. [PMID: 37894860 PMCID: PMC10606804 DOI: 10.3390/ijms242015179] [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: 09/14/2023] [Revised: 10/10/2023] [Accepted: 10/12/2023] [Indexed: 10/29/2023] Open
Abstract
Temozolomide (TMZ) is an important first-line treatment for glioblastoma (GBM), but there are limitations to TMZ response in terms of durability and dependence on the promoter methylation status of the DNA repair gene O6-methylguanine DNA methyltransferase (MGMT). MGMT-promoter-hypermethylated (MGMT-M) GBMs are more sensitive to TMZ than MGMT-promoter-hypomethylated (MGMT-UM) GBMs. Moreover, TMZ resistance is inevitable even in TMZ-sensitive MGMT-M GBMs. Hence, epigenetic reprogramming strategies are desperately needed in order to enhance TMZ response in both MGMT-M and MGMT-UM GBMs. In this study, we present novel evidence that the epigenetic reactivation of Tumor Suppressor Candidate 3 (TUSC3) can reprogram sensitivity of GBM stem cells (GSCs) to TMZ irrespective of MGMT promoter methylation status. Interrogation of TCGA patient GBM datasets confirmed TUSC3 promoter regulation of TUSC3 expression and also revealed a strong positive correlation between TUSC3 expression and GBM patient survival. Using a combination of loss-of-function, gain-of-function and rescue studies, we demonstrate that TUSC3 reactivation is associated with enhanced TMZ response in both MGMT-M and MGMT-UM GSCs. Further, we provide novel evidence that the demethylating agent 5-Azacitidine (5-Aza) reactivates TUSC3 expression in MGMT-M GSCs, whereas the combination of 5-Aza and MGMT inhibitor Lomeguatrib is necessary for TUSC3 reactivation in MGMT-UM GSCs. Lastly, we propose a pharmacological epigenetic reactivation strategy involving TUSC3 that leads to significantly prolonged survival in MGMT-M and MGMT-UM orthotopic GSCs models. Collectively, our findings provide a framework and rationale to further explore TUSC3-mediated epigenetic reprogramming strategies that could enhance TMZ sensitivity and outcomes in GBM. Mechanistic and translational evidence gained from such studies could contribute towards optimal design of impactful trials for MGMT-UM GBMs that currently do not have good treatment options.
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Affiliation(s)
- Qiong Wu
- Department of Neuro-Oncology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, USA
| | - Anders E. Berglund
- Department of Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, USA
| | - Robert J. Macaulay
- Department of Anatomic Pathology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, USA
| | - Arnold B. Etame
- Department of Neuro-Oncology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, USA
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5
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Kałuzińska-Kołat Ż, Kołat D, Kośla K, Płuciennik E, Bednarek AK. Delineating the glioblastoma stemness by genes involved in cytoskeletal rearrangements and metabolic alterations. World J Stem Cells 2023; 15:302-322. [PMID: 37342224 PMCID: PMC10277965 DOI: 10.4252/wjsc.v15.i5.302] [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: 12/10/2022] [Revised: 02/03/2023] [Accepted: 03/08/2023] [Indexed: 05/26/2023] Open
Abstract
Literature data on glioblastoma ongoingly underline the link between metabolism and cancer stemness, the latter is one responsible for potentiating the resistance to treatment, inter alia due to increased invasiveness. In recent years, glioblastoma stemness research has bashfully introduced a key aspect of cytoskeletal rearrangements, whereas the impact of the cytoskeleton on invasiveness is well known. Although non-stem glioblastoma cells are less invasive than glioblastoma stem cells (GSCs), these cells also acquire stemness with greater ease if characterized as invasive cells and not tumor core cells. This suggests that glioblastoma stemness should be further investigated for any phenomena related to the cytoskeleton and metabolism, as they may provide new invasion-related insights. Previously, we proved that interplay between metabolism and cytoskeleton existed in glioblastoma. Despite searching for cytoskeleton-related processes in which the investigated genes might have been involved, not only did we stumble across the relation to metabolism but also reported genes that were found to be implicated in stemness. Thus, dedicated research on these genes in GSCs seems justifiable and might reveal novel directions and/or biomarkers that could be utilized in the future. Herein, we review the previously identified cytoskeleton/metabolism-related genes through the prism of glioblastoma stemness.
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Affiliation(s)
- Żaneta Kałuzińska-Kołat
- Department of Experimental Surgery, Medical University of Lodz, Lodz 90-136, Lodzkie, Poland
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz 90-752, Lodzkie, Poland
| | - Damian Kołat
- Department of Experimental Surgery, Medical University of Lodz, Lodz 90-136, Lodzkie, Poland
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz 90-752, Lodzkie, Poland
| | - Katarzyna Kośla
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz 90-752, Lodzkie, Poland
| | - Elżbieta Płuciennik
- Department of Functional Genomics, Medical University of Lodz, Lodz 90-752, Lodzkie, Poland
| | - Andrzej K Bednarek
- Department of Molecular Carcinogenesis, Medical University of Lodz, Lodz 90-752, Lodzkie, Poland
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Zhang H, Ma B, Li N, Zhang L, Xu J, Zhang S, Guo Z, Han C, Xu S, Li X, Zhang B. SNHG1, a KLF4-upregulated gene, promotes glioma cell survival and tumorigenesis under endoplasmic reticulum stress by upregulating BIRC3 expression. J Cell Mol Med 2023. [PMID: 37243389 DOI: 10.1111/jcmm.17779] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 04/13/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Increasing evidence indicates that long noncoding RNAs (lncRNAs) play crucial roles in the resistance to endoplasmic reticulum (ER) stress in many cancers. However, ER stress-regulated lncRNAs are still unknown in glioma. In the present study, we investigated the altered lncRNAs upon ER stress in glioma and found that small nucleolar RNA host gene 1 (SNHG1) was markedly increased in response to ER stress. Increased SNHG1 suppressed ER stress-induced apoptosis and promoted tumorigenesis in vitro and in vivo. Further mechanistic studies indicated that SNHG1 elevated BIRC3 mRNA stability and enhanced BIRC3 expression. We also found that KLF4 transcriptionally upregulated SNHG1 expression and contributed to the ER stress-induced SNHG1 increase. Collectively, the present findings indicated that SNHG1 is a KLF4-regulated lncRNA that suppresses ER stress-induced apoptosis and facilitates gliomagenesis by elevating BIRC3 expression.
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Affiliation(s)
- Hongqiang Zhang
- Department of Neurosurgery, The Second Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Binbin Ma
- Department of Neurosurgery, The Second Affiliated Hospital, Dalian Medical University, Dalian, China
| | - Na Li
- Institute of Cancer Stem Cell, College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Li Zhang
- Institute of Cancer Stem Cell, College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Jialu Xu
- Institute of Cancer Stem Cell, College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Shuqi Zhang
- Institute of Cancer Stem Cell, College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Ziming Guo
- Institute of Cancer Stem Cell, College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Chuanchun Han
- Institute of Cancer Stem Cell, College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Shasha Xu
- Department of Gastroendoscopy, the Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Xiaodong Li
- Institute of Cancer Stem Cell, College of Basic Medical Science, Dalian Medical University, Dalian, China
| | - Bo Zhang
- Department of Neurosurgery, The Second Affiliated Hospital, Dalian Medical University, Dalian, China
- Department of Neurosurgery, The Shenzhen Luohu Hospital Group, The Third Affiliated Hospital of Shenzhen University, Shenzhen, China
- Neurosurgery Department of School of Medicine, The Chinese University of Hong Kong, Shenzhen, China
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E3 ligase MAEA-mediated ubiquitination and degradation of PHD3 promotes glioblastoma progression. Oncogene 2023; 42:1308-1320. [PMID: 36882523 DOI: 10.1038/s41388-023-02644-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 02/15/2023] [Accepted: 02/17/2023] [Indexed: 03/09/2023]
Abstract
Glioblastoma (GBM) is the most common malignant glioma, with a high recurrence rate and a poor prognosis. However, the molecular mechanism behind the malignant progression of GBM is still unclear. In the present study, through the tandem mass tag (TMT)-based quantitative proteomic analysis of clinical primary and recurrent glioma samples, we identified that aberrant E3 ligase MAEA was expressed in recurrent samples. The results of bioinformatics analysis showed that the high expression of MAEA was related to the recurrence and poor prognosis of glioma and GBM. Functional studies showed that MAEA could promote proliferation, invasion, stemness and temozolomide (TMZ) resistance. Mechanistically, the data indicated that MAEA targeted prolyl hydroxylase domain 3 (PHD3) K159 to promote its K48-linked polyubiquitination and degradation, thus enhancing the stability of HIF-1α, thereby promoting the stemness and TMZ resistance of GBM cells through upregulating CD133. The in vivo experiments further confirmed that knocking down MAEA could inhibit the growth of GBM xenograft tumors. In summary, MAEA enhances the expression of HIF-1α/CD133 through the degradation of PHD3 and promotes the malignant progression of GBM.
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Different Approaches to Study Molecular Blueprint and Biological Behavior of Brain Tumors: Editorial to the Special Issue "Advances in Molecular Genetics of Brain Tumors". Int J Mol Sci 2023; 24:ijms24020948. [PMID: 36674461 PMCID: PMC9865200 DOI: 10.3390/ijms24020948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/18/2022] [Accepted: 12/23/2022] [Indexed: 01/06/2023] Open
Abstract
Cancer remains one of the leading causes of mortality worldwide [...].
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Expression Analysis of BIRC3 as One Target Gene of Transcription Factor NF-κB for Esophageal Cancer. Processes (Basel) 2022. [DOI: 10.3390/pr10091673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Esophageal cancer (ESCA) is one of the highest lethal malignancy tumors worldwide. Baculoviral IAP repeat-containing protein 3 (BIRC3) is the main inhibitor of apoptosis in many malignancies. The aim of this study was to clarify how BIRC3 acts in ESCA cells. Through TNMplot and GEPIA2 analysis, BIRC3 was found abundantly expressed in ESCA cells. The quantitative RT-PCR assay confirmed BIRC3 was pronouncedly induced in all used ESCA cell lines. In addition, proinflammatory cytokines TNFα and IL-1β were shown to have promotion effects on BIRC3 expression in ESCA cells. These promotive effects were blocked when the function of NF-κB was inhibited by bay 11-7082, which indicates the expression of the BIRC3 gene was regulated via the NF-κB transcription pathway in ESCA. Moreover, bioinformatics analysis showed that the BIRC3 gene had many NF-κB binding cis-elements. Chromatin immunoprecipitation was then performed and it was found that NF-κB directly interacts with cis-elements of the BIRC3 gene. In conclusion, our data proved that the high expression level of BIRC3 maintained the survival of ESCA cells. BIRC3 was up-regulated by proinflammatory cytokine TNFα and IL-1β through the NF-κB signaling pathway, and this may be helpful for esophageal cancer prevention and therapy.
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