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Wu Y, Cai J, Pang B, Cao L, He Q, He Q, Zhang A. Bioinformatic Identification of Signaling Pathways and Hub Genes in Vascular Dementia. ACTAS ESPANOLAS DE PSIQUIATRIA 2024; 52:83-98. [PMID: 38622006 PMCID: PMC11015743 DOI: 10.62641/aep.v52i2.1601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
BACKGROUND Vascular dementia (VaD) is a prevalent neurodegenerative disease characterized by cognitive impairment due to cerebrovascular factors, affecting a significant portion of the aging population and highlighting the critical need to understand specific targets and mechanisms for effective prevention and treatment strategies. We aimed to identify pathways and crucial genes involved in the progression of VaD through bioinformatics analysis and subsequently validate these findings. METHODS We conducted differential expression analysis, Weighted Gene Co-expression Network Analysis (WGCNA), Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis, and Protein-Protein Interaction (PPI) analysis. We utilized pheochromocytoma 12 (PC12) cells to create an in vitro oxygen-glucose deprivation (OGD) model. We investigated the impact of overexpression and interference of adrenoceptor alpha 1D (ADRA1D) on OGD PC12 cells using TdT-mediated dUTP nick-end labeling (TUNEL), reverse transcription-quantitative polymerase chain reaction (RT-qPCR), western blot (WB), and Fluo-3-pentaacetoxymethyl ester (Fluo-3 AM) analysis. RESULTS We found 187 differentially expressed genes (DEGs) in the red module that were strongly associated with VaD and were primarily enriched in vasoconstriction, G protein-coupled amine receptor activity, and neuroactive ligand-receptor interaction, mitogen-activated protein kinase (MAPK) signaling pathway, and cell adhesion. Among these pathways, we identified ADRA1D as a gene shared by vasoconstriction, G protein-coupled amine receptor activity, and neuroactive ligand-receptor interaction. The TUNEL assay revealed a significant decrease in PC12 cell apoptosis with ADRA1D overexpression (p < 0.01) and a significant increase in apoptosis upon silencing ADRA1D (p < 0.01). RT-qPCR and WB analysis revealed elevated ADRA1D expression (p < 0.001) and decreased phospholipase C beta (PLCβ) and inositol 1,4,5-trisphosphate receptor (IP3R) expression (p < 0.05) with ADRA1D overexpression. Moreover, the Fluo-3 AM assessment indicated significantly lower intracellular Ca2+ levels with ADRA1D overexpression (p < 0.001). Conversely, interference with ADRA1D yielded opposite results. CONCLUSION Our study provides a new perspective on the pathogenic mechanisms of VaD and potential avenues for therapeutic intervention. The results highlight the role of ADRA1D in modulating cellular responses to OGD and VaD, suggesting its potential as a target for VaD treatment.
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Affiliation(s)
- Yuanhua Wu
- Department of Neurology, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, 550002 Guiyang, Guizhou, China
| | - Jing Cai
- Department of Neurology, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, 550002 Guiyang, Guizhou, China
| | - Bo Pang
- Department of Neurology, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, 550002 Guiyang, Guizhou, China
| | - Liping Cao
- Department of Neurology, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, 550002 Guiyang, Guizhou, China
| | - Qiankun He
- The First School of Clinical Medicine of Guizhou University of Traditional Chinese Medicine, 550001 Guiyang, Guizhou, China
| | - Qiansong He
- Department of Neurology, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, 550002 Guiyang, Guizhou, China
| | - Anbang Zhang
- Department of Neurology, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, 550002 Guiyang, Guizhou, China
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Anwar MJ, Altaf A, Imran M, Amir M, Alsagaby SA, Abdulmonem WA, Mujtaba A, El-Ghorab AH, Ghoneim MM, Hussain M, Jbawi EA, Shaker ME, Abdelgawad MA. Anti-cancer perspectives of resveratrol: a comprehensive review. FOOD AGR IMMUNOL 2023; 34. [DOI: https:/doi.org/10.1080/09540105.2023.2265686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 09/27/2023] [Indexed: 05/18/2024] Open
Affiliation(s)
- Muhammad Junaid Anwar
- Faculty of Food Science and Nutrition, Bahauddin Zakariya University, Multan, Pakistan
| | - Areeba Altaf
- Faculty of Food Science and Nutrition, Bahauddin Zakariya University, Multan, Pakistan
| | - Muhammad Imran
- Department of Food Science and Technology, University of Narowal, Narowal, Pakistan
| | - Muhammad Amir
- Faculty of Food Science and Nutrition, Bahauddin Zakariya University, Multan, Pakistan
| | - Suliman A. Alsagaby
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Majmaah University, Majmaah, Saudi Arabia
| | - Waleed Al Abdulmonem
- Department of Pathology, College of Medicine, Qassim University, Buraidah, Kingdom of Saudi Arabia
| | - Ahmed Mujtaba
- Department of Food Science and Technology, Faculty of Engineering and Technology, Hamdard University Islamabad. Islamabad Campus, Islamabad, Pakistan
| | - Ahmed H. El-Ghorab
- Department of Chemistry, College of Science, Jouf University, Sakaka, Saudi Arabia
| | - Mohammed M. Ghoneim
- Department of Pharmacy Practice, College of Pharmacy, AlMaarefa University, Ad Diriyah, Saudi Arabia
- Pharmacognosy and Medicinal Plants Department, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Muzzamal Hussain
- Department of Food Sciences, Government College University Faisalabad, Pakistan
| | | | - Mohamed E. Shaker
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka, Saudi Arabia
- Department of Pharmacology & Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Mohamed A. Abdelgawad
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka, Saudi Arabia
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Beni-Suef University, Beni suef, Egypt
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Onyango OH, Mwenda CM, Gitau G, Muoma J, Okoth P. In-silico analysis of potent Mosquirix vaccine adjuvant leads. J Genet Eng Biotechnol 2023; 21:155. [PMID: 38032502 PMCID: PMC10689608 DOI: 10.1186/s43141-023-00590-x] [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: 08/08/2023] [Accepted: 11/06/2023] [Indexed: 12/01/2023]
Abstract
BACKGROUND World Health Organization recommend the use of malaria vaccine, Mosquirix, as a malaria prevention strategy. However, Mosquirix has failed to reduce the global burden of malaria because of its inefficacy. The Mosquirix vaccine's modest effectiveness against malaria, 36% among kids aged 5 to 17 months who need at least four doses, fails to aid malaria eradication. Therefore, highly effective and efficacious malaria vaccines are required. The well-characterized P. falciparum circumsporozoite surface protein can be used to discover adjuvants that can increase the efficacy of Mosquirix. Therefore, the study sought to undertake an in-silico discovery of Plasmodium falciparum circumsporozoite surface protein inhibitors with pharmacological properties on Mosquirix using hierarchical virtual screening and molecular dynamics simulation. RESULTS Monoclonal antibody L9, an anti-Plasmodium falciparum circumsporozoite surface protein molecule, was used to identify Plasmodium falciparum circumsporozoite surface protein inhibitors with pharmacological properties on Mosquirix during a virtual screening process in ZINCPHARMER that yielded 23 hits. After drug-likeness and absorption, distribution, metabolism, excretion, and toxicity property analysis in the SwissADME web server, only 9 of the 23 hits satisfied the requirements. The 9 compounds were docked with Plasmodium falciparum circumsporozoite surface protein using the PyRx software to understand their interactions. ZINC25374360 (-8.1 kcal/mol), ZINC40144754 (-8.3 kcal/mol), and ZINC71996727 (-8.9 kcal/mol) bound strongly to Plasmodium falciparum circumsporozoite surface protein with binding affinities of less than -8.0 kcal/mol. The stability of these molecularly docked Plasmodium falciparum circumsporozoite surface protein-inhibitor complexes were assessed through molecular dynamics simulation using GROMACS 2022. ZINC25374360 and ZINC71996727 formed stable complexes with Plasmodium falciparum circumsporozoite surface protein. They were subjected to in vitro validation for their inhibitory potential. The IC50 values ranging between 250 and 350 ng/ml suggest inhibition of parasite development. CONCLUSION Therefore, the two Plasmodium falciparum circumsporozoite surface protein inhibitors can be used as vaccine adjuvants to increase the efficacy of the existing Mosquirix vaccine. Nevertheless, additional in vivo tests, structural optimization studies, and homogenization analysis are essential to determine the anti-plasmodial action of these adjuvants in humans.
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Affiliation(s)
- Okello Harrison Onyango
- Department of Biological Sciences (Molecular Biology, Computational Biology, and Bioinformatics Section), School of Natural and Applied Sciences, Masinde Muliro University of Science and Technology, P.O. BOX 190-50100, Kakamega, Kenya.
| | - Cynthia Mugo Mwenda
- Department of Biological Sciences, School of Pure and Applied Sciences, Meru University of Science and Technology, P.O. BOX 972-60200, Meru, Kenya
| | - Grace Gitau
- Department of Biochemistry and Biotechnology, School of Biological and Life Sciences, The Technical University of Kenya, P.O. BOX 52428-00200, Nairobi, Kenya
| | - John Muoma
- Department of Biological Sciences (Molecular Biology, Computational Biology, and Bioinformatics Section), School of Natural and Applied Sciences, Masinde Muliro University of Science and Technology, P.O. BOX 190-50100, Kakamega, Kenya
| | - Patrick Okoth
- Department of Biological Sciences (Molecular Biology, Computational Biology, and Bioinformatics Section), School of Natural and Applied Sciences, Masinde Muliro University of Science and Technology, P.O. BOX 190-50100, Kakamega, Kenya
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Liu H, Tang T. Pan-cancer genetic analysis of disulfidptosis-related gene set. Cancer Genet 2023; 278-279:91-103. [PMID: 37879141 DOI: 10.1016/j.cancergen.2023.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 09/11/2023] [Accepted: 10/08/2023] [Indexed: 10/27/2023]
Abstract
BACKGROUND A recent study has identified a novel programmed cell death pathway, termed disulfidptosis, which is based on disulfide proteins. This discovery provides new insight into the mechanisms of cell death and may have implications for therapeutic strategies targeting cell death pathways. This study aimed to evaluate the pan-cancer genomics and clinical association of disulfidptosis and disulfidptosis-related cell death genes, including SLC7A11, INF2, CD2AP, PDLIM1, ACTN4, MYH9, MYH10, IQGAP1, FLNA, FLNB, TLN1, MYL6, ACTB, DSTN, and CAPZB. METHODS Using multi-omics profiling data, this study provides a comprehensive and systematic characterization of disulfidptosis genes across more than 9000 samples of over 30 types of cancer. RESULTS FLNA and FLNB were the two most frequently mutated disulfidptosis cell death genes in cancer. UCEC and SKCM were the two cancer types that have the highest mutation rates while the mutation of ACTN4 was associated with worse survival of CESC and ESCA. Breast cancer was potentially affected by disulfidptosis because its subtypes are different in disulfidptosis gene expression. Similarly, KIRC might also be associated with disulfidptosis. Additionally, the association of disulfidptosis-related cell death genes with survival was analyzed, with MESO and LGG as the top cancer types with survival associated with disulfidptosis cell death genes. The correlation between CNV and survival across multiple cancer types found that UCEC, KIRP, LGG, and KIRC were the top cancer types where the CNV level was associated with survival. There was a negative correlation between expression and methylation for most of the genes and there was only a slight correlation between methylation levels and survival of cancer in LGG. About half of the disulfidptosis-related cell death proteins were associated with the activation of EMT. Disulfidptosis genes were correlated to immune cell infiltration levels in cancers. Multiple compounds were identified as potential drugs that might be affected by disulfidptosis-related cell death for future study. CONCLUSION Disulfidptosis cell death genes are potentially involved in many cancer types and can be developed as candidates for cancer diagnosis, prognosis, and therapeutic biomarkers.
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Affiliation(s)
| | - Tao Tang
- Department of Molecular Diagnostics, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, China.
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Foda BM, Neubig RR. Role of Rho/MRTF in Aggressive Vemurafenib-Resistant Murine Melanomas and Immune Checkpoint Upregulation. Int J Mol Sci 2023; 24:13785. [PMID: 37762086 PMCID: PMC10531039 DOI: 10.3390/ijms241813785] [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: 08/04/2023] [Revised: 09/01/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
Cutaneous melanoma is the deadliest skin cancer. Most have Ras-MAPK pathway (BRAFV600E or NRAS) mutations and highly effective targeted therapies exist; however, they and immune therapies are limited by resistance, in part driven by small GTPase (Rho and Rac) activation. To facilitate preclinical studies of combination therapies to provide durable responses, we describe the first mouse melanoma lines resistant to BRAF inhibitors. Treatment of mouse lines, YUMM1.7 and YUMMER, with vemurafenib (Vem), the BRAFV600E-selective inhibitor, resulted in high-level resistance (IC50 shifts 20-30-fold). Resistant cells showed enhanced activation of Rho and the downstream transcriptional coactivator, myocardin-related transcription factor (MRTF). Resistant cells exhibited increased stress fibers, nuclear translocation of MRTF-A, and an increased MRTF-A gene signature. Pharmacological inhibition of the Rho/MRTF pathway using CCG-257081 reduced viability of resistant lines and enhanced sensitivity to Vem. Remarkably, co-treatment of parental lines with Vem and CCG-257081 eliminated resistant colony development. Resistant cells grew more slowly in vitro, but they developed highly aggressive tumors with a shortened survival of tumor-bearing mice. Increased expression of immune checkpoint inhibitor proteins (ICIs) in resistant lines may contribute to aggressive in vivo behavior. Here, we introduce the first drug-resistant mouse melanoma models for assessing combinations of targeted and immune therapies.
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Affiliation(s)
- Bardees M. Foda
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI 48823, USA;
- Molecular Genetics and Enzymology Department, National Research Centre, Dokki 12622, Egypt
| | - Richard R. Neubig
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI 48823, USA;
- Nicholas V. Perricone, M.D. Division of Dermatology, Department of Medicine, Michigan State University, East Lansing, MI 48823, USA
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Nadeem AY, Shehzad A, Islam SU, Al-Suhaimi EA, Lee YS. Mosquirix™ RTS, S/AS01 Vaccine Development, Immunogenicity, and Efficacy. Vaccines (Basel) 2022; 10:vaccines10050713. [PMID: 35632469 PMCID: PMC9143879 DOI: 10.3390/vaccines10050713] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/11/2022] [Accepted: 04/17/2022] [Indexed: 12/10/2022] Open
Abstract
Malaria is a parasitic infection caused by bites from Plasmodium falciparum (P. falciparum)-infected mosquitoes with a present scale of symptoms ranging from moderate fever to neurological disorders. P. falciparum is the most lethal of the five strains of malaria, and is a major case of morbidity and mortality in endemic regions. Recent advancements in malaria diagnostic tools and prevention strategies have improved conjugation antimalarial therapies using fumigation and long-lasting insecticidal sprays, thus lowering malarial infections. Declines in the total number of infected individuals have been correlated with antimalarial drugs. Despite this, malaria remains a major health threat, affecting more than 30 million men, women, and children around the globe, and 20 percent of all children around the globe have malaria parasites in their blood. To overcome this life-threatening condition, novel therapeutic strategies, including immunization, are urgently needed to tackle this infection around the world. In line with this, the development of the RTS, S vaccine was a significant step forward in the fight against malaria. RTS, S is a vaccine for P. falciparum in which R specifies central repeat units, T the T-cell epitopes, and S indicates surface antigen. The RTS, S/AS01 malarial vaccine was synthesized and screened in several clinical trials between 2009 and 2014, involving thousands of young children in seven African countries, showing that children who received the vaccine did not suffer from severe malaria. Mosquirix™ was approved by the World Health Organization in 2021, indicating it to be safe and advocating its integration into routine immunization programs and existing malaria control measures. This paper examines the various stages of the vaccine’s development, including the evaluation of its immunogenicity and efficacy on the basis of a total of 2.3 million administered doses through a routine immunization program. The protection and effectiveness provided by the vaccine are strong, and evidence shows that it can be effectively delivered through the routine child immunization platform. The economic cost of the vaccine remains to be considered.
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Affiliation(s)
- Aroosa Younis Nadeem
- Department of Biomedical Sciences, School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan; (A.Y.N.); (A.S.)
| | - Adeeb Shehzad
- Department of Biomedical Sciences, School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan; (A.Y.N.); (A.S.)
| | - Salman Ul Islam
- Department of Pharmacy, CECOS University, Peshawar 25000, Pakistan;
| | - Ebtesam A. Al-Suhaimi
- Biology Department, College of Science and Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia;
| | - Young Sup Lee
- BK21 FOUR KNU Creative BioResearch Group, School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea
- Correspondence: ; Tel.: +82-53-950-6353; Fax: +82-53-943-2762
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Islam SU, Ahmed MB, Sonn JK, Jin EJ, Lee YS. PRP4 Induces Epithelial–Mesenchymal Transition and Drug Resistance in Colon Cancer Cells via Activation of p53. Int J Mol Sci 2022; 23:ijms23063092. [PMID: 35328513 PMCID: PMC8955441 DOI: 10.3390/ijms23063092] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 11/16/2022] Open
Abstract
Pre-mRNA processing factor 4B (PRP4) promotes pre-mRNA splicing and signal transduction. Recent studies have shown that PRP4 modulates the assembly of actin cytoskeleton in cancer cells and induces epithelial–mesenchymal transition (EMT) and drug resistance. PRP4 displays kinase domain-like cyclin-dependent kinases and mitogen-activated protein kinases, making it capable of phosphorylating p53 and other target proteins. In the current study, we report that PRP4 induces drug resistance and EMT via direct binding to the p53 protein, inducing its phosphorylation. Moreover, PRP4 overexpression activates the transcription of miR-210 in a hypoxia-inducible factor 1α (HIF-1α)-dependent manner, which activates p53. The involvement of miR-210 in the activation of p53 was confirmed by utilizing si-miR210. si-miR210 blocked the PRP4-activated cell survival pathways and reversed the PRP4-induced EMT phenotype. Moreover, we used deferoxamine as a hypoxia-mimetic agent, and si-HIF to silence HIF-1α. This procedure demonstrated that PRP4-induced EMT and drug resistance emerged in response to consecutive activation of HIF-1α, miR-210, and p53 by PRP4 overexpression. Collectively, our findings suggest that the PRP4 contributes to EMT and drug resistance induction via direct interactions with p53 and actions that promote upregulation of HIF-1α and miR-210. We conclude that PRP4 is an essential factor promoting cancer development and progression. Specific PRP4 inhibition could benefit patients with colon cancer.
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Affiliation(s)
- Salman Ul Islam
- Department of Pharmacy, Cecos University, Hayatabad, Peshawar 25000, Pakistan;
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea;
| | - Muhammad Bilal Ahmed
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea;
| | - Jong-Kyung Sonn
- Department of Biology, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea;
| | - Eun-Jung Jin
- Department of Biological Science, College of Natural Science, Wonkwang University, Iksan 54538, Korea
- Correspondence: (E.-J.J.); (Y.-S.L.); Tel.: +82-63-8500-6197(E.-J.J.); +82-53-950-6353 (Y.-S.L.); Fax: +82-53-943-2762 (E.-J.J.)
| | - Young-Sup Lee
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea;
- Correspondence: (E.-J.J.); (Y.-S.L.); Tel.: +82-63-8500-6197(E.-J.J.); +82-53-950-6353 (Y.-S.L.); Fax: +82-53-943-2762 (E.-J.J.)
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Khayer N, Jalessi M, Jahanbakhshi A, Tabib Khooei A, Mirzaie M. Nkx3-1 and Fech genes might be switch genes involved in pituitary non-functioning adenoma invasiveness. Sci Rep 2021; 11:20943. [PMID: 34686726 PMCID: PMC8536755 DOI: 10.1038/s41598-021-00431-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 10/12/2021] [Indexed: 12/12/2022] Open
Abstract
Non-functioning pituitary adenomas (NFPAs) are typical pituitary macroadenomas in adults associated with increased mortality and morbidity. Although pituitary adenomas are commonly considered slow-growing benign brain tumors, numerous of them possess an invasive nature. Such tumors destroy sella turcica and invade the adjacent tissues such as the cavernous sinus and sphenoid sinus. In these cases, the most critical obstacle for complete surgical removal is the high risk of damaging adjacent vital structures. Therefore, the development of novel therapeutic strategies for either early diagnosis through biomarkers or medical therapies to reduce the recurrence rate of NFPAs is imperative. Identification of gene interactions has paved the way for decoding complex molecular mechanisms, including disease-related pathways, and identifying the most momentous genes involved in a specific disease. Currently, our knowledge of the invasion of the pituitary adenoma at the molecular level is not sufficient. The current study aimed to identify critical biomarkers and biological pathways associated with invasiveness in the NFPAs using a three-way interaction model for the first time. In the current study, the Liquid association method was applied to capture the statistically significant triplets involved in NFPAs invasiveness. Subsequently, Random Forest analysis was applied to select the most important switch genes. Finally, gene set enrichment (GSE) and gene regulatory network (GRN) analyses were applied to trace the biological relevance of the statistically significant triplets. The results of this study suggest that "mRNA processing" and "spindle organization" biological processes are important in NFAPs invasiveness. Specifically, our results suggest Nkx3-1 and Fech as two switch genes in NFAPs invasiveness that may be potential biomarkers or target genes in this pathology.
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Affiliation(s)
- Nasibeh Khayer
- Skull Base Research Center, The Five Senses Health Institute, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Jalessi
- Skull Base Research Center, The Five Senses Health Institute, Iran University of Medical Sciences, Tehran, Iran.
- ENT and Head & Neck Research Center and Department, Hazrat Rasoul Hospital, Iran University of Medical Sciences, Tehran, Iran.
| | - Amin Jahanbakhshi
- Skull Base Research Center, The Five Senses Health Institute, Iran University of Medical Sciences, Tehran, Iran
- Neurology Department, Hazrat Rasoul Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Alireza Tabib Khooei
- Neurology Department, Hazrat Rasoul Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Mirzaie
- Department of Applied Mathematics, Faculty of Mathematical Sciences, Tarbiat Modares University, Tehran, Iran.
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PRP4 Promotes Skin Cancer by Inhibiting Production of Melanin, Blocking Influx of Extracellular Calcium, and Remodeling Cell Actin Cytoskeleton. Int J Mol Sci 2021; 22:ijms22136992. [PMID: 34209674 PMCID: PMC8268783 DOI: 10.3390/ijms22136992] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/18/2021] [Accepted: 06/23/2021] [Indexed: 11/16/2022] Open
Abstract
Pre-mRNA processing factor 4B (PRP4) has previously been shown to induce epithelial-mesenchymal transition (EMT) and drug resistance in cancer cell lines. As melanin plays an important photoprotective role in the risk of sun-induced skin cancers, we have investigated whether PRP4 can induce drug resistance and regulate melanin biosynthesis in a murine melanoma (B16F10) cell line. Cells were incubated with a crucial melanogenesis stimulator, alpha-melanocyte-stimulating hormone, followed by transfection with PRP4. This resulted in the inhibition of the production of melanin via the downregulation of adenylyl cyclase-cyclic adenosine 3′,5′-monophosphate (AC)–(cAMP)–tyrosinase synthesis signaling pathway. Inhibition of melanin production by PRP4 leads to the promotion of carcinogenesis and induced drug resistance in B16F10 cells. Additionally, PRP4 overexpression upregulated the expression of β-arrestin 1 and desensitized the extracellular calcium-sensing receptor (CaSR), which in turn, inhibited the influx of extracellular Ca2+ ions. The decreased influx of Ca2+ was confirmed by a decreased expression level of calmodulin. We have demonstrated that transient receptor potential cation channel subfamily C member 1 was involved in the influx of CaSR-induced Ca2+ via a decreasing level of its expression. Furthermore, PRP4 overexpression downregulated the expression of AC, decreased the synthesis of cAMP, and modulated the actin cytoskeleton by inhibiting the expression of Ras homolog family member A (RhoA). Our investigation suggests that PRP4 inhibits the production of melanin in B16F10 cells, blocks the influx of Ca2+ through desensitization of CaSR, and modulates the actin cytoskeleton through downregulating the AC–cAMP pathway; taken together, these observations collectively lead to the promotion of skin carcinogenesis.
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Liu Q, Liu DW, Zheng MJ, Deng L, Wang HM, Jin S, Liu JJ, Hao YY, Zhu LC, Lin B. Human epididymis protein 4 promotes P‑glycoprotein‑mediated chemoresistance in ovarian cancer cells through interactions with Annexin II. Mol Med Rep 2021; 24:496. [PMID: 33955501 PMCID: PMC8127061 DOI: 10.3892/mmr.2021.12135] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 03/16/2021] [Indexed: 12/11/2022] Open
Abstract
The aim of the present study was to investigate the effects of human epididymis protein 4 (HE4) on drug resistance and its underlying mechanisms. The associations among proteins were detected by immunoprecipitation and immunofluorescence assays. Then, stably transfected cell lines CAOV3-HE4-L and CAOV3-A2-L expressing HE4 short hairpin (sh)RNAs and ANXA2 shRNAs, respectively, were constructed. MTT assay, immunocytochemistry, western blotting, reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and flow cytometry were employed to examine drug sensitivity, as well as the expression and activity of P-glycoprotein (P-gp). HE4 and P-gp in epithelial ovarian cancer tissues were assessed via immunohistochemistry. MicroRNAs that targeted the P-gp gene, ABCB1, were predicted using bioinformatics methods, and their expression was evaluated by RT-qPCR. The common signaling pathways shared by HE4, ANXA2 and P-gp were selected by Gene Set Enrichment Analysis (GSEA). The interaction of HE4, ANXA2 and P-gp were confirmed. P-gp expression was positively associated with HE4 and ANXA2 expression, respectively. Moreover, it was observed that there was no significant rescue of P-gp expression in CAOV3-A2-L cells following the administration of active HE4 protein. In addition, the expression of HE4 and P-gp in ovarian cancer tissues of drug-resistant patients were higher compared with that of the drug-sensitive group (P<0.05). Furthermore, the results revealed that hsa-miR-129-5p was significantly increased accompanied by decreased HE4 or ANXA2 expression and P-gp expression in CAOV3-HE4-L and CAOV3-A2-L cells. GSEA analyses disclosed that HE4, ANXA2 and P-gp genes were commonly enriched in the signaling pathway involved in regulating the actin cytoskeleton. These results indicated that HE4 promotes P-gp-mediated drug resistance in ovarian cancer cells through the interactions with ANXA2, and the underlying mechanism may be associated with decreased expression of hsa-miR-129-5p and dysregulation of the actin cytoskeleton signaling pathway.
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Affiliation(s)
- Qing Liu
- Department of Obstetrics and Gynecology, Shengjing Hospital Affiliated to China Medical University, Shenyang, Liaoning 110000, P.R. China
| | - Da-Wo Liu
- Department of Obstetrics and Gynecology, Shengjing Hospital Affiliated to China Medical University, Shenyang, Liaoning 110000, P.R. China
| | - Ming-Jun Zheng
- Department of Obstetrics and Gynecology, University Hospital, LMU Munich, D‑80337 Munich, Germany
| | - Lu Deng
- Department of Obstetrics and Gynecology, Hospital of Fudan University, Shanghai 200000, P.R. China
| | - Hui-Min Wang
- Department of Obstetrics and Gynecology, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110000, P.R. China
| | - Shan Jin
- Department of Obstetrics and Gynecology, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110000, P.R. China
| | - Juan-Juan Liu
- Department of Obstetrics and Gynecology, Shengjing Hospital Affiliated to China Medical University, Shenyang, Liaoning 110000, P.R. China
| | - Ying-Ying Hao
- Department of Obstetrics and Gynecology, Shengjing Hospital Affiliated to China Medical University, Shenyang, Liaoning 110000, P.R. China
| | - Lian-Cheng Zhu
- Department of Obstetrics and Gynecology, Shengjing Hospital Affiliated to China Medical University, Shenyang, Liaoning 110000, P.R. China
| | - Bei Lin
- Department of Obstetrics and Gynecology, Shengjing Hospital Affiliated to China Medical University, Shenyang, Liaoning 110000, P.R. China
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Islam SU, Ahmed MB, Ahsan H, Islam M, Shehzad A, Sonn JK, Lee YS. An Update on the Role of Dietary Phytochemicals in Human Skin Cancer: New Insights into Molecular Mechanisms. Antioxidants (Basel) 2020; 9:E916. [PMID: 32993035 PMCID: PMC7600476 DOI: 10.3390/antiox9100916] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/21/2020] [Accepted: 09/24/2020] [Indexed: 12/24/2022] Open
Abstract
Human skin is continuously subjected to environmental stresses, as well as extrinsic and intrinsic noxious agents. Although skin adopts various molecular mechanisms to maintain homeostasis, excessive and repeated stresses can overwhelm these systems, leading to serious cutaneous damage, including both melanoma and non-melanoma skin cancers. Phytochemicals present in the diet possess the desirable effects of protecting the skin from damaging free radicals as well as other benefits. Dietary phytochemicals appear to be effective in preventing skin cancer and are inexpensive, widely available, and well tolerated. Multiple in vitro and in vivo studies have demonstrated the significant anti-inflammatory, antioxidant, and anti-angiogenic characteristics of dietary phytochemicals against skin malignancy. Moreover, dietary phytochemicals affect multiple important cellular processes including cell cycle, angiogenesis, and metastasis to control skin cancer progression. Herein, we discuss the advantages of key dietary phytochemicals in whole fruits and vegetables, their bioavailability, and underlying molecular mechanisms for preventing skin cancer. Current challenges and future prospects for research are also reviewed. To date, most of the chemoprevention investigations have been conducted preclinically, and additional clinical trials are required to conform and validate the preclinical results in humans.
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Affiliation(s)
- Salman Ul Islam
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea; (S.U.I.); (M.B.A.); (H.A.); (J.K.S.)
| | - Muhammad Bilal Ahmed
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea; (S.U.I.); (M.B.A.); (H.A.); (J.K.S.)
| | - Haseeb Ahsan
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea; (S.U.I.); (M.B.A.); (H.A.); (J.K.S.)
- Department of Pharmacy, Faculty of Life and Environmental Sciences, University of Peshawar, Peshawar 25120, Pakistan
| | - Mazharul Islam
- Department of Chemical Engineering, College of Engineering, Dhofar University, Salalah 2509, Oman;
| | - Adeeb Shehzad
- Department of Clinical Pharmacy, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia;
| | - Jong Kyung Sonn
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea; (S.U.I.); (M.B.A.); (H.A.); (J.K.S.)
| | - Young Sup Lee
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea; (S.U.I.); (M.B.A.); (H.A.); (J.K.S.)
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Ahmed MB, Islam SU, Sonn JK, Lee YS. PRP4 Kinase Domain Loss Nullifies Drug Resistance and Epithelial-Mesenchymal Transition in Human Colorectal Carcinoma Cells. Mol Cells 2020; 43:662-670. [PMID: 32576716 PMCID: PMC7398799 DOI: 10.14348/molcells.2020.2263] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 04/23/2020] [Accepted: 04/26/2020] [Indexed: 01/24/2023] Open
Abstract
We have investigated the involvement of the pre-mRNA processing factor 4B (PRP4) kinase domain in mediating drug resistance. HCT116 cells were treated with curcumin, and apoptosis was assessed based on flow cytometry and the generation of reactive oxygen species (ROS). Cells were then transfected with PRP4 or pre-mRNA-processing-splicing factor 8 (PRP8), and drug resistance was analyzed both in vitro and in vivo. Furthermore, we deleted the kinase domain in PRP4 using GatewayTM technology. Curcumin induced cell death through the production of ROS and decreased the activation of survival signals, but PRP4 overexpression reversed the curcumin-induced oxidative stress and apoptosis. PRP8 failed to reverse the curcumin-induced apoptosis in the HCT116 colon cancer cell line. In xenograft mouse model experiments, curcumin effectively reduced tumour size whereas PRP4 conferred resistance to curcumin, which was evident from increasing tumour size, while PRP8 failed to regulate the curcumin action. PRP4 overexpression altered the morphology, rearranged the actin cytoskeleton, triggered epithelial-mesenchymal transition (EMT), and decreased the invasiveness of HCT116 cells. The loss of E-cadherin, a hallmark of EMT, was observed in HCT116 cells overexpressing PRP4. Moreover, we observed that the EMT-inducing potential of PRP4 was aborted after the deletion of its kinase domain. Collectively, our investigations suggest that the PRP4 kinase domain is responsible for promoting drug resistance to curcumin by inducing EMT. Further evaluation of PRP4-induced inhibition of cell death and PRP4 kinase domain interactions with various other proteins might lead to the development of novel approaches for overcoming drug resistance in patients with colon cancer.
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Affiliation(s)
- Muhammad Bilal Ahmed
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 4566, Korea
| | - Salman Ul Islam
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 4566, Korea
| | - Jong Kyung Sonn
- Department of Biology, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea
| | - Young Sup Lee
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 4566, Korea
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Salman Ul Islam, Ahmed MB, Mazhar Ul-Islam, Shehzad A, Lee YS. Switching from Conventional to Nano-natural Phytochemicals to Prevent and Treat Cancers: Special Emphasis on Resveratrol. Curr Pharm Des 2020; 25:3620-3632. [PMID: 31605574 DOI: 10.2174/1381612825666191009161018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 10/01/2019] [Indexed: 01/08/2023]
Abstract
BACKGROUND Natural phytochemicals and their derivatives have been used in medicine since prehistoric times. Natural phytochemicals have potential uses against various disorders, including cancers. However, due to low bioavailability, their success in clinical trials has not been reproduced. Nanotechnology has played a vital role in providing new directions for diagnosis, prevention, and treatment of different disorders, and of cancer in particular. Nanotechnology has demonstrated the capability to deliver conventional natural products with poor solubility or a short half-life to target specific sites in the body and regulate the release of drugs. Among the natural products, the phytoalexin resveratrol has demonstrated therapeutic effects, including antioxidant, antiinflammatory, and anti-proliferative effects, as well as the potential to inhibit the initiation and promotion of cancer. However, low water solubility and extensive first-pass metabolism lead to poor bioavailability of resveratrol, hindering its potential. Conventional dosage forms of resveratrol, such as tablets, capsules, dry powder, and injections, have met with limited success. Nanoformulations are now being investigated to improve the pharmacokinetic characteristics, as well as to enhance the bioavailability and targetability of resveratrol. OBJECTIVES This review details the therapeutic effectiveness, mode of action, and pharmacokinetic limitations of resveratrol, as well as discusses the successes and challenges of resveratrol nanoformulations. Modern nanotechnology techniques to enhance the encapsulation of resveratrol within nanoparticles and thereby enhance its therapeutic effects are emphasized. CONCLUSION To date, no resveratrol-based nanosystems are in clinical use, and this review would provide a new direction for further investigations on innovative nanodevices that could consolidate the anticancer potential of resveratrol.
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Affiliation(s)
- Salman Ul Islam
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea
| | - Muhammad B Ahmed
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea
| | - Mazhar Ul-Islam
- Department of Chemical Engineering, College of Engineering, Dhofar University, Salalah, Oman
| | - Adeeb Shehzad
- Department of Clinical Pharmacy, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman bin Faisal University, Dammam, Saudi Arabia
| | - Young S Lee
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea
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Ahmed MB, Islam SU, Lee YS. Decursin negatively regulates LPS-induced upregulation of the TLR4 and JNK signaling stimulated by the expression of PRP4 in vitro. Anim Cells Syst (Seoul) 2020; 24:44-52. [PMID: 32158615 PMCID: PMC7048231 DOI: 10.1080/19768354.2020.1726811] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 01/09/2020] [Accepted: 02/03/2020] [Indexed: 02/08/2023] Open
Abstract
The current investigation was carried out to analyze the correlation of bacterial lipopolysaccharide (LPS) and pre-mRNA processing factor 4B (PRP4) in inducing inflammatory response and cell actin cytoskeleton rearrangement in macrophages (Raw 264.7) and colorectal (HCT116) as well as skin cancer (B16-F10) cells. Cell lines were stimulated with LPS, and the expression of PRP4 as well as pro-inflammatory cytokines and proteins like IL-6, IL-1β, TLR4, and NF-κB were assayed. The results demonstrated that LPS markedly increased the expression of PRP4, IL-6, IL-1β, TLR4, and NF-κB in the cells. LPS and PRP4 concomitantly altered the morphology of cells from an aggregated, flattened shape to a round shape. Decursin, a pyranocoumarin from Angelica gigas, inhibited the LPS and PRP4-induced inflammatory response, and reversed the induction of morphological changes. Finally, we established a possible link of LPS with TLR4 and JNK signaling, through which it activated PRP4. Our study provides molecular insights for LPS and PRP4-related pathogenesis and a basis for developing new strategies against metastasis in colorectal cancer and skin melanoma. Our study emphasizes that decursin may be an effective treatment strategy for various cancers in which LPS and PRP4 perform a critical role in inducing inflammatory response and morphological changes leading to cell survival and protection against anti-cancer drugs.
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Affiliation(s)
- Muhammad Bilal Ahmed
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu, Korea
| | - Salman Ul Islam
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu, Korea
| | - Young Sup Lee
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu, Korea
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Biomechanical and functional properties of trophoblast cells exposed to Group B Streptococcus in vitro and the beneficial effects of uvaol treatment. Biochim Biophys Acta Gen Subj 2019; 1863:1417-1428. [PMID: 31254547 DOI: 10.1016/j.bbagen.2019.06.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 06/21/2019] [Accepted: 06/24/2019] [Indexed: 11/23/2022]
Abstract
BACKGROUND Group B streptococcus (GBS) is the main bacteria that infects pregnant women and can cause abortion and chorioamnionitis. The impact of GBS effects on human trophoblast cells remains largely elusive, and actions toward anti-inflammatory strategies in pregnancy are needed. A potent anti-inflammatory molecule, uvaol is a triterpene from olive oil and its functions in trophoblasts are unknown. We aimed to analyze biomechanical and functional effects of inactivated GBS in trophoblast cells, with the addition of uvaol to test potential benefits. METHODS HTR-8/SVneo cells were treated with uvaol and incubated with inactivated GBS. Cell viability and death were analyzed. Cellular elasticity and topography were accessed by atomic force microscopy. Nitrite production was evaluated by Griess reaction. Nuclear translocation of NFkB p65 was detected by immunofluorescence and Th1/Th2 cytokines by bead-based multiplex assay. RESULTS GBS at 108 CFU increased cell death, which was partially prevented by uvaol. Cell stiffness, cytoskeleton organization and morphology were changed by GBS, and uvaol partially restored these alterations. Nuclear translocation of NFkB p65 began 15 min after GBS incubation and uvaol inhibited this process. GBS decreased IL-4 secretion and increased IL-1β, IFN-γ and IL-2, whereas uvaol reverted this. CONCLUSIONS The increased inflammation and cell death caused by GBS correlated with biomechanical and cytoskeleton changes found in trophoblast cells, while uvaol was effective its protective role. GENERAL SIGNIFICANCE Uvaol is a natural anti-inflammatory product efficient against GBS-induced inflammation and it has potential to be acquired through diet in order to prevent GBS deleterious effects in pregnancy.
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Methanolic Extract of Artemia salina Eggs and Various Fractions in Different Solvents Contain Potent Compounds That Decrease Cell Viability of Colon and Skin Cancer Cell Lines and Show Antibacterial Activity against Pseudomonas aeruginosa. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:9528256. [PMID: 31198432 PMCID: PMC6526577 DOI: 10.1155/2019/9528256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/10/2019] [Accepted: 04/22/2019] [Indexed: 11/29/2022]
Abstract
Artemia salina, crustaceans of class Branchiopoda and order Anostraca, are living and reproducing only in highly saline natural lakes and in other reservoirs where sea water is evaporated to produce salt. Artemia salina eggs can be purchased from pet stores, where they are sold as tropical fish food and a ready source for hatching shrimp. In the current study, methanolic crude extracts and various fractions of Artemia salina eggs extracted in other solvents were tested for effects on cell viability of human colorectal cancer cells (HCT116) and melanoma cells (B16F10) using an MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay. A methanolic crude extract of eggs was obtained by cold maceration, followed by fractionation to obtain hexane, chloroform, ethyl acetate, n-butanol, and aqueous fractions. The methanolic crude extract decreased cell viability of HCT-116 and B16F10 cell lines at higher concentrations. The other fractions were evaluated using a cell viability assay, and chloroform and hexane showed the highest activity at significantly lower concentrations than did the methanolic fraction. Full scan profiles of the methanolic crude extract and the chloroform and hexane fractions were obtained by gas chromatography mass spectrometry (GC-MS), and the resultant compounds were identified by comparing their spectral data to those available in spectral matching libraries. ROS generation assay, flow cytometry, and western blot analysis provided supporting evidence that the hexane and chloroform fractions induced cell death in HCT116 and B16-F10 cell lines. All fractions were further tested for antibacterial activity against Pseudomonas aeruginosa, among which the hexane fraction showed the highest zone of inhibition on LB nutrient agar plates. This study demonstrated promising anticancer and antibacterial effects of Artemia salina egg extracts. Our results suggest that pure bioactive compounds obtained from Artemia salina eggs can provide new insights into the mechanisms of colon and skin cancer, as well as Pseudomonas aeruginosa inhibition.
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Targeted Therapy-Resistant Melanoma Cells Acquire Transcriptomic Similarities with Human Melanoblasts. Cancers (Basel) 2018; 10:cancers10110451. [PMID: 30453548 PMCID: PMC6265976 DOI: 10.3390/cancers10110451] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 11/06/2018] [Accepted: 11/13/2018] [Indexed: 01/08/2023] Open
Abstract
The mechanisms of adaptive and acquired drug resistance in tumors are not completely understood. So far, gene amplifications or mutations, leading to the reactivation of the MAPK or PI3K pathways have been described. In this study, we used two different methods to generate human melanoblasts: (1) via differentiation from induced pluripotent stem cells (iPSCs) and (2) via dedifferentiation from melanocytes. The melanoblast transcriptomes were then compared to the transcriptome of MAPK inhibitor-resistant melanoma cells. We observed that the expression of genes associated with cell cycle control, DNA damage control, metabolism, and cancer was altered in both melanoblast populations and in both adaptive and acquired resistant melanoma samples, compared to drug-sensitive samples. However, genes involved in antigen presentation and cellular movement were only regulated in the melanoblast populations and in the acquired resistant melanoma samples, compared to the drug-sensitive samples. Moreover, melanocyte-derived melanoblasts and adaptive resistant melanoma samples were characterized by different expression levels of certain transcription factors or genes involved in the CDK5 pathway. In conclusion, we show here that in vitro models of human melanoblasts are very important tools to comprehend the expression profiles of drug-resistant melanoma.
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Wang N, Zhang M, Chang Y, Niu N, Guan Y, Ye M, Li C, Tang J. Directly observing alterations of morphology and mechanical properties of living cancer cells with atomic force microscopy. Talanta 2018; 191:461-468. [PMID: 30262086 DOI: 10.1016/j.talanta.2018.09.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 08/29/2018] [Accepted: 09/03/2018] [Indexed: 12/18/2022]
Abstract
Epithelial-mesenchymal transition (EMT) is a biological process during which cells lose their characteristic structure and biochemical properties then adopt typical features of a mesenchymal phenotype. Alterations in the morphology, structure, and mechanical properties of cells during EMT are associated with a series of pathological processes. In this work, atomic force microscopy (AFM) is used for investigating effects of TGF-β1 on morphology and mechanical properties of living bladder cancer cells (T24) during EMT for the first time. High-resolution topography and Young's modulus images of T24 living cell are obtained simultaneously. The results show that TGF-β1 is able to induce EMT, leading to the increased F-actin stress fibers and much higher Young's modulus values of T24 living cells. It reveals that the cytoskeletal-associated cell architecture is closely related to the mechanical dynamics of T24 cells during EMT. This work provides new insights into the changes of cell morphology and mechanical properties during EMT. It enables us to gain a deeper understanding of the growth, development and metastasis of the bladder cancer cell therefore it is of great significance for studying the pathological mechanism of cells at single-cell level.
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Affiliation(s)
- Nan Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; School of Pharmacy, Hebei Medical University, Shijiazhuang 050017, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Miaomiao Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of Science and Technology of China, Hefei 230026, PR China
| | - Yaqing Chang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Niu Niu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of Science and Technology of China, Hefei 230026, PR China
| | - Yanxue Guan
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Ming Ye
- Bruker (Beijing) Scientific Technology Co., Ltd, Shanghai 200233, PR China
| | - Chen Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of Science and Technology of China, Hefei 230026, PR China
| | - Jilin Tang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; University of Science and Technology of China, Hefei 230026, PR China.
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PRP4 kinase induces actin rearrangement and epithelial-mesenchymal transition through modulation of the actin-binding protein cofilin. Exp Cell Res 2018; 369:158-165. [PMID: 29787735 DOI: 10.1016/j.yexcr.2018.05.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 05/17/2018] [Accepted: 05/18/2018] [Indexed: 01/26/2023]
Abstract
Cell actin cytoskeleton is primarily modulated by Rho family proteins. RhoA regulates several downstream targets, including Rho-associated protein kinase (ROCK), LIM-Kinase (LIMK), and cofilin. Pre-mRNA processing factor 4B (PRP4) modulates the actin cytoskeleton of cancer cells via RhoA activity inhibition. In this study, we discovered that PRP4 over-expression in HCT116 colon cancer cells induces cofilin dephosphorylation by inhibiting the Rho-ROCK-LIMK-cofilin pathway. Two-dimensional gel electrophoresis, and matrix-assisted laser desorption/ionization time-of-flight mass-spectrometry (MALDI-TOF MS) analysis indicated increased expression of protein phosphatase 1A (PP1A) in PRP4-transfected HCT116 cells. The presence of PRP4 increased the expression of PP1A both at the mRNA and protein levels, which possibly activated cofilin through dephosphorylation and subsequently modulated the cell actin cytoskeleton. Furthermore, we found that PRP4 over-expression did not induce cofilin dephosphorylation in the presence of okadaic acid, a potent phosphatase inhibitor. Moreover, we discovered that PRP4 over-expression in HCT116 cells induced dephosphorylation of migration and invasion inhibitory protein (MIIP), and down-regulation of E-cadherin protein levels, which were further restored by the presence of okadaic acid. These findings indicate a possible molecular mechanism of PRP4-induced actin cytoskeleton remodeling and epithelial-mesenchymal transition, and make PRP4 an important target in colon cancer.
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