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Yu H, Megawati D, Zheng C, Rothenberg S. Protein Kinase R (PKR) as a Novel dsRNA Sensor in Antiviral Innate Immunity. Methods Mol Biol 2025; 2854:265-282. [PMID: 39192136 DOI: 10.1007/978-1-0716-4108-8_25] [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] [Indexed: 08/29/2024]
Abstract
Protein kinase R (PKR), a key double-stranded RNA (dsRNA)-activated sensor, is pivotal for cellular responses to diverse stimuli. This protocol delineates a comprehensive methodological framework employing single luciferase assays, yeast assays, immunoblot assays, and quantitative PCR (qPCR) to discern and validate PKR activities and their downstream impacts on NF-κB-activating signaling pathways. These methodologies furnish a systematic approach to unraveling the role of PKR as a dsRNA sensor and effector in antiviral innate immunity, enabling in-depth analyses of dsRNA sensor activities.
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Affiliation(s)
- Huibin Yu
- Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, Davis, CA, USA
- Laboratory of Viral Diseases, NIAID NIH, Bethesda, MD, USA
| | - Dewi Megawati
- Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, Davis, CA, USA
| | - Chunfu Zheng
- Department of Microbiology, Immunology and Infectious Diseases, University of Calgary, Calgary, AB, Canada
| | - Stefan Rothenberg
- Department of Medical Microbiology and Immunology, School of Medicine, University of California, Davis, Davis, CA, USA.
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2
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Alhazmi AI, El-Refaei MF, Abdallah EAA. Protective effects of gallic acid against nickel-induced kidney injury: impact of antioxidants and transcription factor on the incidence of nephrotoxicity. Ren Fail 2024; 46:2344656. [PMID: 38685608 PMCID: PMC11062283 DOI: 10.1080/0886022x.2024.2344656] [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: 10/18/2023] [Accepted: 04/14/2024] [Indexed: 05/02/2024] Open
Abstract
Nickel (Ni) is a common metal with a nephrotoxic effect, damaging the kidneys. This study investigated the mechanism by which gallic acid (GA) protects mice kidneys against renal damage induced by Nickel oxide nanoparticles (NiO-NPs). Forty male Swiss albino mice were randomly assigned into four groups, each consisting of ten mice (n = 10/group): Group I the control group, received no treatment; Group II, the GA group, was administrated GA at a dosage of 110 mg/kg/day body weight; Group III, the NiO-NPs group, received injection of NiO-NPs at a concentration of 20 mg/kg body weight for 10 consecutive days; Group IV, the GA + NiO-NPs group, underwent treatment with both GA and NiO-NPs. The results showed a significant increase in serum biochemical markers and a reduction in antioxidant activities. Moreover, levels of 8-hydroxy-2'-deoxyguanosine (8-OH-dG), phosphorylated nuclear factor kappa B (p65), and protein carbonyl (PC) were significantly elevated in group III compared with group I. Furthermore, the western blot analysis revealed significant high NF-κB p65 expression, immunohistochemistry of the NF-κB and caspase-1 expression levels were significantly increased in group III compared to group I. Additionally, the histopathological inspection of the kidney in group III exhibited a substantial increase in extensive necrosis features compared with group I. In contrast, the concomitant coadministration of GA and NiO-NPs in group IV showed significant biochemical, antioxidant activities, immunohistochemical and histopathological improvements compared with group III. Gallic acid has a protective role against kidney dysfunction and renal damage in Ni-nanoparticle toxicity.
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Affiliation(s)
| | - Mohamed F. El-Refaei
- Faculty of Medicine, Al-Baha University, Al Baha, Saudi Arabia
- Biochemistry and Molecular Biology, Genetic Institute, Sadat City University, Sadat City, Egypt
| | - Eman A. A. Abdallah
- Faculty of Medicine, Al-Baha University, Al Baha, Saudi Arabia
- Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Zagazig University, Egypt
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3
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Manaithiya A, Bhowmik R, Acharjee S, Sharma S, Kumar S, Imran M, Mathew B, Parkkila S, Aspatwar A. Elucidating molecular mechanism and chemical space of chalcones through biological networks and machine learning approaches. Comput Struct Biotechnol J 2024; 23:2811-2836. [PMID: 39045026 PMCID: PMC11263914 DOI: 10.1016/j.csbj.2024.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 07/03/2024] [Accepted: 07/04/2024] [Indexed: 07/25/2024] Open
Abstract
We developed a bio-cheminformatics method, exploring disease inhibition mechanisms using machine learning-enhanced quantitative structure-activity relationship (ML-QSAR) models and knowledge-driven neural networks. ML-QSAR models were developed using molecular fingerprint descriptors and the Random Forest algorithm to explore the chemical spaces of Chalcones inhibitors against diverse disease properties, including antifungal, anti-inflammatory, anticancer, antimicrobial, and antiviral effects. We generated and validated robust machine learning-based bioactivity prediction models (https://github.com/RatulChemoinformatics/QSAR) for the top genes. These models underwent ROC and applicability domain analysis, followed by molecular docking studies to elucidate the molecular mechanisms of the molecules. Through comprehensive neural network analysis, crucial genes such as AKT1, HSP90AA1, SRC, and STAT3 were identified. The PubChem fingerprint-based model revealed key descriptors: PubchemFP521 for AKT1, PubchemFP180 for SRC, PubchemFP633 for HSP90AA1, and PubchemFP145 and PubchemFP338 for STAT3, consistently contributing to bioactivity across targets. Notably, chalcone derivatives demonstrated significant bioactivity against target genes, with compound RA1 displaying a predictive pIC50 value of 5.76 against HSP90AA1 and strong binding affinities across other targets. Compounds RA5 to RA7 also exhibited high binding affinity scores comparable to or exceeding existing drugs. These findings emphasize the importance of knowledge-based neural network-based research for developing effective drugs against diverse disease properties. These interactions warrant further in vitro and in vivo investigations to elucidate their potential in rational drug design. The presented models provide valuable insights for inhibitor design and hold promise for drug development. Future research will prioritize investigating these molecules for mycobacterium tuberculosis, enhancing the comprehension of effectiveness in addressing infectious diseases.
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Affiliation(s)
- Ajay Manaithiya
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Ratul Bhowmik
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Satarupa Acharjee
- Department of Pharmacy, NSHM Knowledge Campus, Kolkata-Group of Institutions, Kolkata, West Bengal 700053, India
| | - Sameer Sharma
- Department of Bioinformatics, BioNome, Bangalore 560043, India
| | - Sunil Kumar
- Department of Pharmaceutical Chemistry, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS, Health Sciences Campus, Kochi, India
| | - Mohd. Imran
- Department of Pharmaceutical Chemistry, College of Pharmacy, Northern Border University, Rafha 91911, Saudi Arabia
| | - Bijo Mathew
- Department of Pharmaceutical Chemistry, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS, Health Sciences Campus, Kochi, India
| | - Seppo Parkkila
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Fimlab Ltd., Tampere University Hospital, Tampere, Finland
| | - Ashok Aspatwar
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
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Gupta P, Choudhari V, Kumar R. Exploring the genetic mechanisms: SELP gene's contribution to alleviating vaso-occlusive crisis in sickle cell disease. Gene 2024; 928:148805. [PMID: 39079562 DOI: 10.1016/j.gene.2024.148805] [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: 05/15/2024] [Revised: 07/09/2024] [Accepted: 07/26/2024] [Indexed: 08/03/2024]
Abstract
Sickle cell disease is a catastrophic inflammatory disorder characterized by microvascular vaso-occlusion, leading to high morbidity and increased mortality. P-selectin, a cell adhesion molecule, plays a crucial role in the pathogenesis and severity of sickle cell disease. Its expression and binding with its ligand PSGL-1 is involved in various mechanisms that contribute to inflammation and immune response, resulting in complications in sickle cell disease. Preclinical data have verified the efficacy of P-Selectin inhibition in mitigating vaso-occlusive events and severity of disease. Currently clinical trials are ongoing to evaluate the safety and efficiency of P-Selectin-targeted therapies and concede the challenges and limitations associated with their use. Despite of its proven role in reducing severity in sickle cell disease, future research should focus on identifying other novel targets within the adhesion cascade and explore combination therapies. Conducting trials and addressing concerns about accessibility are crucial steps towards fully harnessing the potential of P selectin inhibitors as a groundbreaking treatment option. This review focuses on understanding the role of p selectin and its interactions with molecules involved in inflammation providing insights about the molecular etiology, pathophysiology, and potential therapeutic targets in sickle cell disease.
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Affiliation(s)
- Parul Gupta
- ICMR-National Institute of Research in Tribal Health, India
| | | | - Ravindra Kumar
- ICMR-National Institute of Research in Tribal Health, India.
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Li J, Zhang SX, Wang DL, Qi JJ, Bai CY, Sun H, Sun BX, Liang S. Thyroxine regulates pig Sertoli cell line proliferation and maturation through the IKK/NFκB and p38 MAPK signaling pathways. Theriogenology 2024; 227:1-8. [PMID: 38981313 DOI: 10.1016/j.theriogenology.2024.06.031] [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: 11/20/2023] [Revised: 06/20/2024] [Accepted: 06/27/2024] [Indexed: 07/11/2024]
Abstract
The aim of this study was to investigate the signaling pathways involved in the proliferation and differentiation of pig Sertoli cells (SCs) mediated by thyroid hormone (T3) to provide a theoretical and practical basis for enhancing pig semen production. The effects of different concentrations of T3 on the proliferation of pig SCs were evaluated using the CCK8 assay. The impact of T3 on the proliferation and differentiation of pig SCs was further examined using RNA-seq, qPCR, and Western Blotting techniques. Additionally, the involvement of the p38 MAPK and NFκB pathways in mediating the effects of T3 on SCs proliferation and differentiation was investigated. Our findings revealed a strong correlation between the dosage of T3 and the inhibition of pig SCs proliferation and promotion of maturation. T3 regulated the activation state of the NFκB signaling pathway by upregulating IKKα, downregulating IKKβ, and promoting IκB phosphorylation. Furthermore, T3 facilitated SCs maturation by upregulating AR and FSHR expression while downregulating KRT-18. In conclusion, T3 inhibits pig SCs proliferation and promote pig SCs maturation through the IKK/NFκB and p38 MAPK pathways. These findings provide valuable insights into the mechanisms by which T3 influences the proliferation and maturation of pig SCs.
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Affiliation(s)
- Jing Li
- Department of Animals Sciences, College of Animal Sciences, Jilin University, Changchun, China
| | - Shao-Xuan Zhang
- Department of Animals Sciences, College of Animal Sciences, Jilin University, Changchun, China
| | - Da-Li Wang
- Department of Animals Sciences, College of Animal Sciences, Jilin University, Changchun, China
| | - Jia-Jia Qi
- Department of Animals Sciences, College of Animal Sciences, Jilin University, Changchun, China
| | - Chun-Yan Bai
- Department of Animals Sciences, College of Animal Sciences, Jilin University, Changchun, China
| | - Hao Sun
- Department of Animals Sciences, College of Animal Sciences, Jilin University, Changchun, China
| | - Bo-Xing Sun
- Department of Animals Sciences, College of Animal Sciences, Jilin University, Changchun, China.
| | - Shuang Liang
- Department of Animals Sciences, College of Animal Sciences, Jilin University, Changchun, China.
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Zhang Y, Tu J, Wang J, Dai T, Zheng L, Sun S, Tu C, Li H, Qian L. NFKBIE is a predictive factor of survival and is correlated with immune infiltration and antigen processing and presentation in hepatocellular carcinoma. Oncol Lett 2024; 28:480. [PMID: 39161335 PMCID: PMC11332585 DOI: 10.3892/ol.2024.14613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 02/21/2024] [Indexed: 08/21/2024] Open
Abstract
The important role of the nuclear factor κB (NFκB) pathway in tumour development has long been recognized; however, the role of the NFκB inhibitor family in liver cancer has not been elucidated. Hepatocellular carcinoma (HCC) is a serious public health burden with a high incidence, poor prognosis, and early detection, especially in Asia, where hepatitis is prevalent. In the present study, the mRNA expression level of the NFκB inhibitor family was assessed in HCC and normal tissues using the Metabolic Gene Rapid Visualizer, University of Alabama at Birmingham Cancer Data Analysis Portal, and the Tumor Immune Estimation Resource database (TIMER). Survival curves of nuclear factor of κ light polypeptide gene enhancer in B-cells inhibitor (NFKBI)E were obtained using the Kaplan-Meier method. Genes co-expressed with NFKBIE in HCC samples were studied using data from the LinkedOmics and the Hepatocellular Carcinoma Databases. Protein-protein interaction networks, Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment pathway analyses were used to assess the NFKBIE mechanism in HCC. Using the TIMER database, the association between immune infiltration and NFKBIE was determined. RNA-sequencing (RNA-seq) was used to evaluate the function of NFKBIE in HCC and its impact on proliferation and migration. Western blotting was used to confirm the expression of NFKBIE in HCC cell lines. In addition, NFKBIE overexpression in HCC was demonstrated using tissue microarrays encompassing 80 pairs of HCC and normal liver tissues. NFKBIE was the only NFκB inhibitor with high expression and an improved prognosis in HCC compared with other NFκB inhibitors. NFKBIE was correlated with clinical characteristics, such as tumour grade, tumour protein P53 mutation status and tumour stage. Data obtained from Gene Set Cancer Analysis suggested that NFKBIE may inhibit the PI3K/AKT, RAS/MAPK, RTK and TSC/mTOR pathways. In addition, NFKBIE was significantly associated with B-cell immune infiltration and the RNA-seq data demonstrated that knockdown of NFKBIE significantly affected 'Antigen processing and presentation' and 'hepatocellular carcinoma' pathways. Immunohistochemistry of microarrays of tissue samples revealed that NFKBIE was overexpressed in several stages of HCC. Finally, inhibition of NFKBIE decreased the proliferation and migration of HCC cells. In conclusion, due to its prognostic value and overexpression in HCC, NFKBIE distinguished itself from other NFκB inhibitors. As such, it may provide a novel prognostic indicator and immunotherapeutic target for HCC.
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Affiliation(s)
- Yang Zhang
- Department of Comprehensive Surgery, The First Affiliated Hospital of University of Science and Technology of China West District, Hefei, Anhui 230031, P.R. China
| | - Jinqi Tu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College), Wuhu, Anhui 241001, P.R. China
| | - Jian Wang
- Department of Comprehensive Surgery, The First Affiliated Hospital of University of Science and Technology of China West District, Hefei, Anhui 230031, P.R. China
| | - Tiancheng Dai
- Department of Medical Laboratory Technology, The First Clinical College of Anhui Medical University, Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Lin Zheng
- Department of Comprehensive Surgery, The First Affiliated Hospital of University of Science and Technology of China West District, Hefei, Anhui 230031, P.R. China
| | - Sinan Sun
- Department of Radiation Oncology, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230031, P.R. China
| | - Conyin Tu
- Department of Comprehensive Surgery, The First Affiliated Hospital of University of Science and Technology of China West District, Hefei, Anhui 230031, P.R. China
| | - Heng Li
- Department of Comprehensive Surgery, The First Affiliated Hospital of University of Science and Technology of China West District, Hefei, Anhui 230031, P.R. China
| | - Liting Qian
- Department of Radiation Oncology, The First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230031, P.R. China
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Lu Y, Berenson A, Lane R, Guelin I, Li Z, Chen Y, Shah S, Yin M, Soto-Ugaldi LF, Fiszbein A, Fuxman Bass JI. A large-scale cancer-specific protein-DNA interaction network. Life Sci Alliance 2024; 7:e202402641. [PMID: 39013578 PMCID: PMC11252446 DOI: 10.26508/lsa.202402641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 07/03/2024] [Accepted: 07/04/2024] [Indexed: 07/18/2024] Open
Abstract
Cancer development and progression are generally associated with gene dysregulation, often resulting from changes in the transcription factor (TF) sequence or expression. Identifying key TFs involved in cancer gene regulation provides a framework for potential new therapeutics. This study presents a large-scale cancer gene TF-DNA interaction network, as well as an extensive promoter clone resource for future studies. Highly connected TFs bind to promoters of genes associated with either good or poor cancer prognosis, suggesting that strategies aimed at shifting gene expression balance between these two prognostic groups may be inherently complex. However, we identified potential for oncogene-targeted therapeutics, with half of the tested oncogenes being potentially repressed by influencing specific activators or bifunctional TFs. Finally, we investigate the role of intrinsically disordered regions within the key cancer-related TF ESR1 in DNA binding and transcriptional activity, and found that these regions can have complex trade-offs in TF function. Altogether, our study broadens our knowledge of the TFs involved in cancer gene regulation and provides a valuable resource for future studies and therapeutics.
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Affiliation(s)
- Yunwei Lu
- https://ror.org/05qwgg493 Biology Department, Boston University, Boston, MA, USA
| | - Anna Berenson
- https://ror.org/05qwgg493 Biology Department, Boston University, Boston, MA, USA
- https://ror.org/05qwgg493 Molecular Biology, Cellular Biology and Biochemistry Program, Boston University, Boston, MA, USA
| | - Ryan Lane
- https://ror.org/05qwgg493 Biology Department, Boston University, Boston, MA, USA
| | - Isabelle Guelin
- https://ror.org/05qwgg493 Biology Department, Boston University, Boston, MA, USA
| | - Zhaorong Li
- https://ror.org/05qwgg493 Bioinformatics Program, Boston University, Boston, MA, USA
| | - Yilin Chen
- https://ror.org/05qwgg493 Biology Department, Boston University, Boston, MA, USA
| | - Sakshi Shah
- https://ror.org/05qwgg493 Biology Department, Boston University, Boston, MA, USA
| | - Meimei Yin
- https://ror.org/05qwgg493 Biology Department, Boston University, Boston, MA, USA
| | | | - Ana Fiszbein
- https://ror.org/05qwgg493 Biology Department, Boston University, Boston, MA, USA
- https://ror.org/05qwgg493 Molecular Biology, Cellular Biology and Biochemistry Program, Boston University, Boston, MA, USA
- https://ror.org/05qwgg493 Bioinformatics Program, Boston University, Boston, MA, USA
| | - Juan Ignacio Fuxman Bass
- https://ror.org/05qwgg493 Biology Department, Boston University, Boston, MA, USA
- https://ror.org/05qwgg493 Molecular Biology, Cellular Biology and Biochemistry Program, Boston University, Boston, MA, USA
- https://ror.org/05qwgg493 Bioinformatics Program, Boston University, Boston, MA, USA
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Althobaiti NA, Al-Abbas NS, Alsharif I, Albalawi AE, Almars AI, Basabrain AA, Jafer A, Ellatif SA, Bauthman NM, Almohaimeed HM, Soliman MH. Gadd45A-mediated autophagy regulation and its impact on Alzheimer's disease pathogenesis: Deciphering the molecular Nexus. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167353. [PMID: 39004381 DOI: 10.1016/j.bbadis.2024.167353] [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: 12/30/2023] [Revised: 06/18/2024] [Accepted: 07/08/2024] [Indexed: 07/16/2024]
Abstract
BACKGROUND The growth arrest and DNA damage-inducible 45 (Gadd45) gene has been implicated in various central nervous system (CNS) functions, both normal and pathological, including aging, memory, and neurodegenerative diseases. In this study, we examined whether Gadd45A deletion triggers pathways associated with neurodegenerative diseases including Alzheimer's disease (AD). METHODS Utilizing transcriptome data from AD-associated hippocampus samples, we identified Gadd45A as a pivotal regulator of autophagy. Comprehensive analyses, including Gene Ontology enrichment and protein-protein interaction network assessments, highlighted Cdkn1A as a significant downstream target of Gadd45A. Experimental validation confirmed Gadd45A's role in modulating Cdkn1A expression and autophagy levels in hippocampal cells. We also examined the effects of autophagy on hippocampal functions and proinflammatory cytokine secretion. Additionally, a murine model was employed to validate the importance of Gadd45A in neuroinflammation and AD pathology. RESULTS Our study identified 20 autophagy regulatory factors associated with AD, with Gadd45A emerging as a critical regulator. Experimental findings demonstrated that Gadd45A influences hippocampal cell fate by reducing Cdkn1A expression and suppressing autophagic activity. Comparisons between wild-type (WT) and Gadd45A knockout (Gadd45A-/-) mice revealed that Gadd45A-/- mice exhibited significant cognitive impairments, including deficits in working and spatial memory, increased Tau hyperphosphorylation, and elevated levels of kinases involved in Tau phosphorylation in the hippocampus. Additionally, Gadd45A-/- mice showed significant increases in pro-inflammatory cytokines and decreases autophagy markers in the brain. Neurotrophin levels and dendritic spine length were also reduced in Gadd45A-/- mice, likely contributing to the observed cognitive deficits. CONCLUSIONS These findings support the direct involvement of the Gadd45A gene in AD pathogenesis, and enhancing the expression of Gadd45A may represent a promising therapeutic strategy for the treatment of AD.
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Affiliation(s)
- Norah A Althobaiti
- Biology Department, College of Science and Humanities, Shaqra University, Saudi Arabia
| | - Nouf S Al-Abbas
- Department of Biology, Jamoum University College, Umm Al-Qura University, 21955 Makkah, Saudi Arabia
| | - Ifat Alsharif
- Department of Biology, Jamoum University College, Umm Al-Qura University, 21955 Makkah, Saudi Arabia
| | - Aishah E Albalawi
- Faculty of Science, Department of Biology, University of Tabuk, Tabuk 47913, Saudi Arabia
| | - Amany I Almars
- Department of Medial Laboratory Sciences, Faculty of Applied Medical Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Ammar A Basabrain
- Department of Medial Laboratory Sciences, Faculty of Applied Medical Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Hematology Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Ayman Jafer
- Department of Medial Laboratory Sciences, Faculty of Applied Medical Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Sawsan Abd Ellatif
- Bioprocess Development Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications (SRTA-City), Alexandria 21934, Egypt
| | - Nuha M Bauthman
- Department of Obstetric & Gynecology, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
| | - Hailah M Almohaimeed
- Department of Basic Science, College of Medicine, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Mona H Soliman
- Botany and Microbiology Department, Faculty of Science, Cairo University, Giza 12613, Egypt; Biology Department, Faculty of Science, Taibah University, Al-Sharm, Yanbu El-Bahr, Yanbu 46429, Saudi Arabia.
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9
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Xia Q, Liu F, Zhou Y, Yang G, Li F, Liang T, Liu J, Li W, Huang Y, Zhu C. CD47-SIRPα signaling-inspired engineered monocytes for preventing the progression of atherosclerotic plaques. Mater Today Bio 2024; 28:101178. [PMID: 39211288 PMCID: PMC11357865 DOI: 10.1016/j.mtbio.2024.101178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 07/14/2024] [Accepted: 08/01/2024] [Indexed: 09/04/2024] Open
Abstract
The accumulation of foam cells in the subendothelial space of the vascular wall to form plaques is the real cause of atherosclerotic lesions. Conventional interventions, such as statins and anti-cytokine or anti-inflammatory therapies, suffer problems in terms of their short therapeutic outcomes and potential disruption of the immune system. The development of more efficient therapeutics to restrict the initial progression of plaques appears to be crucial for treating and preventing atherosclerosis. Decreasing foam cell formation by reversing the excessive phagocytosis of modified low-density lipoprotein (LDL) in macrophages is highly desirable. Here, we developed a strategy based on engineered monocytes to dynamically regulate lipid uptake by macrophages inspired by a CD47-SIRPα signaling-induced defect in the phagocytosis of lesional macrophages at the advanced stage of AS. Briefly, a complex called CD47p-GQDs-miR223, which is designed to interact with SIRPα, was synthesized to remodel monocytes by decreasing the uptake of oxidized LDL through the activation of CD47-SIRPα signaling. After injection, these monocytes compete for recruitment to atherosclerotic plaques, release gene drugs and mediate anti-inflammatory phenotypic remodeling of the aboriginal macrophages, effectively inhibiting the development of foam cells. Our strategy provides a new therapeutic for preventing the progression of atherosclerosis.
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Affiliation(s)
- Qing Xia
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Feila Liu
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Yue Zhou
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Guanyuan Yang
- Department of Anatomy, State Key Laboratory of Trauma, Burn and Combined Injury, National and Regional Engineering Laboratory of Tissue Engineering, Third Military Medical University, Chongqing, 400038, China
| | - Fangzhou Li
- Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300192, China
| | - Tingting Liang
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Jun Liu
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Wanling Li
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Yaqing Huang
- School of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Chuhong Zhu
- Department of Anatomy, State Key Laboratory of Trauma, Burn and Combined Injury, National and Regional Engineering Laboratory of Tissue Engineering, Third Military Medical University, Chongqing, 400038, China
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10
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Huang F, Gao J, Li A, Mizokami A, Matsuda M, Aoki K, Katagiri T, Kawakubo-Yasukochi T, Jimi E. Activation of NF-κB signaling regulates ovariectomy-induced bone loss and weight gain. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167320. [PMID: 38936515 DOI: 10.1016/j.bbadis.2024.167320] [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: 03/14/2024] [Revised: 06/13/2024] [Accepted: 06/19/2024] [Indexed: 06/29/2024]
Abstract
Postmenopausal women experience bone loss and weight gain. To date, crosstalk between estrogen receptor signals and nuclear factor-κB (NF-κB) has been reported, and estrogen depletion enhances bone resorption by osteoclasts via NF-κB activation. However, it is unclear when and in which tissues NF-κB is activated after menopause, and how NF-κB acts as a common signaling molecule for postmenopausal weight gain and bone loss. Therefore, we examined the role of NF-κB in bone and energy metabolism following menopause. NF-κB reporter mice, which can be used to measure NF-κB activation in vivo, were ovariectomized (OVX) and the luminescence intensity after OVX increased in the metaphyses of the long bones and perigonadal white adipose tissue, but not in the other tissues. OVX was performed on wild-type (WT) and p65 mutant knock-in (S534A) mice, whose mutation enhances the transcriptional activity of NF-κB. Weight gain with worsening glucose tolerance was significant in S534A mice after OVX compared with those of WT mice. The bone density of the sham group in WT or S534A mice did not change, whereas in the S534A-OVX group it significantly decreased due to the suppression of bone formation and increase in bone marrow adipocytes. Disulfiram, an anti-alcoholic drug, suppressed OVX-induced activation of NF-κB in the metaphyses of long bones and white adipose tissue (WAT), as well as weight gain and bone loss. Overall, the activation of NF-κB in the metaphyses of long bones and WAT after OVX regulates post-OVX weight gain and bone loss.
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Affiliation(s)
- Fei Huang
- Laboratory of Molecular and Cellular Biochemistry, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Jing Gao
- Laboratory of Molecular and Cellular Biochemistry, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Aonan Li
- Laboratory of Molecular and Cellular Biochemistry, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Akiko Mizokami
- Oral Health/Brain Health/Total Health Research Center, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Miho Matsuda
- Laboratory of Molecular and Cellular Biochemistry, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Kazuhiro Aoki
- Department of Basic Oral Health Engineering, Graduate School, Tokyo Medical and Dental University, 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
| | - Takenobu Katagiri
- Division of Biomedical Sciences, Research Center for Genomic Medicine, Saitama Medical University, Hidaka-shi, Saitama 350-1241, Japan
| | - Tomoyo Kawakubo-Yasukochi
- Oral Health/Brain Health/Total Health Research Center, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Eijiro Jimi
- Laboratory of Molecular and Cellular Biochemistry, Division of Oral Biological Sciences, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; Oral Health/Brain Health/Total Health Research Center, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
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11
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Campbell CA, Calderon R, Pavani G, Cheng X, Barakat R, Snella E, Liu F, Peng X, Essner JJ, Dorman KS, McGrail M, Gadue P, French DL, Espin-Palazon R. p65 signaling dynamics drive the developmental progression of hematopoietic stem and progenitor cells through cell cycle regulation. Nat Commun 2024; 15:7787. [PMID: 39242546 PMCID: PMC11379711 DOI: 10.1038/s41467-024-51922-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 08/20/2024] [Indexed: 09/09/2024] Open
Abstract
Most gene functions have been discovered through phenotypic observations under loss of function experiments that lack temporal control. However, cell signaling relies on limited transcriptional effectors, having to be re-used temporally and spatially within the organism. Despite that, the dynamic nature of signaling pathways have been overlooked due to the difficulty on their assessment, resulting in important bottlenecks. Here, we have utilized the rapid and synchronized developmental transitions occurring within the zebrafish embryo, in conjunction with custom NF-kB reporter embryos driving destabilized fluorophores that report signaling dynamics in real time. We reveal that NF-kB signaling works as a clock that controls the developmental progression of hematopoietic stem and progenitor cells (HSPCs) by two p65 activity waves that inhibit cell cycle. Temporal disruption of each wave results in contrasting phenotypic outcomes: loss of HSPCs due to impaired specification versus proliferative expansion and failure to delaminate from their niche. We also show functional conservation during human hematopoietic development using iPSC models. Our work identifies p65 as a previously unrecognized contributor to cell cycle regulation, revealing why and when pro-inflammatory signaling is required during HSPC development. It highlights the importance of considering and leveraging cell signaling as a temporally dynamic entity.
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Affiliation(s)
- Clyde A Campbell
- Department of Genetics, Development and Cell Biology; Iowa State University, Ames, IA, 50011, USA.
| | - Rodolfo Calderon
- Department of Genetics, Development and Cell Biology; Iowa State University, Ames, IA, 50011, USA
| | - Giulia Pavani
- Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Xiaoyi Cheng
- Department of Genetics, Development and Cell Biology; Iowa State University, Ames, IA, 50011, USA
| | - Radwa Barakat
- Department of Genetics, Development and Cell Biology; Iowa State University, Ames, IA, 50011, USA
- Department of Toxicology, Faculty of Veterinary Medicine, Benha University, Qalyubia, 13518, Egypt
| | - Elizabeth Snella
- Department of Genetics, Development and Cell Biology; Iowa State University, Ames, IA, 50011, USA
| | - Fang Liu
- Department of Genetics, Development and Cell Biology; Iowa State University, Ames, IA, 50011, USA
| | - Xiyu Peng
- Department of Statistics, Iowa State University, Ames, IA, 50011, USA
| | - Jeffrey J Essner
- Department of Genetics, Development and Cell Biology; Iowa State University, Ames, IA, 50011, USA
| | - Karin S Dorman
- Department of Genetics, Development and Cell Biology; Iowa State University, Ames, IA, 50011, USA
- Department of Statistics, Iowa State University, Ames, IA, 50011, USA
| | - Maura McGrail
- Department of Genetics, Development and Cell Biology; Iowa State University, Ames, IA, 50011, USA
| | - Paul Gadue
- Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Deborah L French
- Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Raquel Espin-Palazon
- Department of Genetics, Development and Cell Biology; Iowa State University, Ames, IA, 50011, USA.
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12
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Gamal El-Din MI, Mantawy EM, Said RS, Fahmy NM, Fayez S, Shahin MI, Nasr M, Elissawy AM, Singab ANB. Hibiscus schizopetalus boosts wound healing via restoring redox balance and hindering inflammatory responses in rats: Insights on metabolome profiling and molecular docking. Arch Pharm (Weinheim) 2024:e2400392. [PMID: 39240066 DOI: 10.1002/ardp.202400392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2024] [Revised: 08/17/2024] [Accepted: 08/19/2024] [Indexed: 09/07/2024]
Abstract
Hibiscus species (Malvaceae) possess a plethora of appealing pharmacological activities with an extended history of customary use in diverse medical conditions. The present study aimed at comparing the metabolomic analyses of three Hibiscus species native to Egypt, namely H. tiliaceus, H. schizopetalus extract (HSE), and H. rosa-sinensis, alongside identifying a promising natural wound healing candidate. Chemical profiling of the leaf extracts was achieved via UPLC-ESI/MS/MS-guided analysis that resulted in the tentative identification of a total of 48 secondary metabolites pertaining to phenolic acids, flavonoids, anthocyanins, fatty acids, and fatty amides. Remarkably, in vitro studies revealed that HSE exhibited the topmost wound healing activity. Subsequently, HSE was formulated into hydro- and nanogel (1% w/v) formulations for further assessing its efficacy in the wound excision model. HSE-nanogel demonstrated a significant in vivo wound contraction activity alongside improving histopathological abnormalities. Mechanistically, HSE-nanogel upregulated the wound antioxidant status through increasing the levels of reduced glutathione (GSH) and catalase activity. Moreover, HSE-nanogel suppressed the wound inflammatory responses by diminishing the expressions of NF-ĸB, TNF-α, and IL-6. Molecular docking studies were performed on HSE's major constituents using CDOCKER, which further supported the in vivo findings. Collectively, HSE nanogel exhibits notable aptitude as a wound-healing agent, warranting further clinical appraisal.
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Affiliation(s)
- Mariam I Gamal El-Din
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Eman M Mantawy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Riham S Said
- Department of Drug Radiation Research, National Center for Radiation Research & Technology, Egyptian Atomic Energy Authority, Cairo, Egypt
| | - Nouran M Fahmy
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Shaimaa Fayez
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Mai I Shahin
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Maha Nasr
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Ahmed M Elissawy
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
- Center for Drug Discovery Research and Development, Ain Shams University, Cairo, Egypt
| | - Abdel Nasser B Singab
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
- Center for Drug Discovery Research and Development, Ain Shams University, Cairo, Egypt
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13
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Ahmadi S, Majidi M, Koraei M, Vasef S. The Inflammation/NF-κB and BDNF/TrkB/CREB Pathways in the Cerebellum Are Implicated in the Changes in Spatial Working Memory After Both Morphine Dependence and Withdrawal in Rat. Mol Neurobiol 2024; 61:6721-6733. [PMID: 38347284 DOI: 10.1007/s12035-024-03993-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 01/27/2024] [Indexed: 08/22/2024]
Abstract
We aimed to explore the impact of the cerebellum on the decline in spatial working memory following morphine dependence and withdrawal. Two groups of male Wistar rats received intraperitoneal injections of either saline (1 ml/kg) or morphine (10 mg/kg) twice daily for 10 days, serving as the control and dependent groups. Additionally, a withdrawal group underwent a 30-day withdrawal period after the dependence phase. Spatial working memory was assessed using a Y maze test. ELISA and western blot were used to assess protein levels in the cerebellum. On day 1, morphine impaired spatial working memory, deteriorated further after 10 days of morphine use, and nearly returned to its initial level following a 30-day withdrawal period. On day 10, significant increases in TNF-α, IL-1β, and CXCL12 and a notable decrease in IL-10 levels were detected in the morphine-dependent group, which did not completely restore in the withdrawal group. The protein levels of CXCR4, TLR4, P2X7R, and NF-κB sharply increased in the morphine-dependent group. However, these levels almost returned to normal after withdrawal. In the morphine-dependent group, BDNF decreased, while TrkB and CREB1 increased noticeably. Nevertheless, after withdrawal, TrkB and CREB1 but not BDNF levels returned to normal. In the morphine-dependent group, both CACNA1 and KCNMA1 decreased significantly and after withdrawal, only KCNMA1 showed partial restoration, while CACNA1 did not. It can be concluded that inflammation/NF-κB and BDNF/TrkB/CREB pathways play key roles in neural adaptation within the cerebellum, contributing to the decline in spatial working memory after both morphine dependence and withdrawal.
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Affiliation(s)
- Shamseddin Ahmadi
- Department of Biological Science, Faculty of Science, University of Kurdistan, P.O. Box 416, Sanandaj, Iran.
| | - Mohammad Majidi
- Department of Biological Science, Faculty of Science, University of Kurdistan, P.O. Box 416, Sanandaj, Iran
| | - Maryam Koraei
- Department of Biological Science, Faculty of Science, University of Kurdistan, P.O. Box 416, Sanandaj, Iran
| | - Samira Vasef
- Department of Biological Science, Faculty of Science, University of Kurdistan, P.O. Box 416, Sanandaj, Iran
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14
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Mustakim KR, Eo MY, Kim SM. The role of endoplasmic reticulum stress in the pathogenesis of oral diseases. J Korean Assoc Oral Maxillofac Surg 2024; 50:177-188. [PMID: 39211966 PMCID: PMC11372229 DOI: 10.5125/jkaoms.2024.50.4.177] [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: 08/20/2023] [Accepted: 10/13/2023] [Indexed: 09/04/2024] Open
Abstract
The endoplasmic reticulum (ER) is crucial for protein synthesis, transport, and folding, as well as calcium storage, lipid and steroid synthesis, and carbohydrate metabolism. Endoplasmic reticulum stress (ERS) occurs when misfolded or unfolded proteins accumulate in the ER lumen due to increased protein secretion or impaired folding. While the role of ERS in disease pathogenesis has been widely studied, most research has focused on extraoral diseases, leaving the role of ERS in intraoral diseases unclear. This review examines the role of ERS in oral diseases and oral fibrosis pathogenesis. A systematic search of literature through July 2023 was conducted in the MEDLINE database (via PubMed) using specific terms related to ERS, oral diseases, and fibrosis. The findings were summarized in both table and narrative form. Emerging evidence indicates that ERS significantly contributes to the pathogenesis of oral diseases and fibrosis. ERS-induced dysregulation of protein folding and the unfolded protein response can lead to cellular dysfunction and inflammation in oral tissues. Understanding the relationship between ERS and oral disease pathogenesis could offer new therapeutic targets for managing oral health and fibrosis-related complications.
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Affiliation(s)
- Kezia Rachellea Mustakim
- Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea
| | - Mi Young Eo
- Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea
| | - Soung Min Kim
- Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea
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15
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El-Reda GA, Mahmoud UT, Ali FAZ, Abdel-Maksoud FM, Mahmoud MAM, El-Hossary FM. Neurobehavioral toxicity of Cold plasma activated water following oral gavage in mice. Neurotoxicology 2024; 105:45-57. [PMID: 39216604 DOI: 10.1016/j.neuro.2024.08.007] [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: 05/06/2024] [Revised: 08/14/2024] [Accepted: 08/27/2024] [Indexed: 09/04/2024]
Abstract
Cold plasma-activated water (PAW) is a novel technology that was recently used in biomedical research; Despite its potential, PAW's safety remains inadequately assessed. The study explores the impact of PAW on behavioral responses and brain tissue histopathology in mice. Ten-week-old female albino mice were divided into three groups each containing 10 mice (5 replicates, 2 mice/cage) and received either distilled water (DW), or distilled water exposed to cold atmospheric plasma (CAP) for 3 min (PAW-3), or 15 min (PAW-15) by oral gavage in a dose of 200 μL/mice (3 times/week) for four weeks. PAW exhibited altered physicochemical properties compared to DW. Mice exposed to PAW demonstrated reduced burrowing activity, marble burying ability, and novel object recognition compared to controls, indicating potential neurobehavioral alterations. PAW-treated groups displayed notable histological lesions in brain tissues, including nerve cell necrosis, vascular congestion, and Purkinje cell degeneration, confirming neurotoxic effects. Positive reactions for NF-κB and iNOS in brain tissues of PAW-treated mice corroborated the histopathological findings, suggesting neuroinflammation and oxidative stress. The study highlights the need for further investigation into PAW's safety profile and optimal treatment protocols to mitigate potential neurobehavioral toxicity in biomedical research.
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Affiliation(s)
- Ghada Abd El-Reda
- Physics Department, Faculty of Science, Assiut University, Assiut 71516, Egypt; Physics Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
| | - Usama T Mahmoud
- Department of Animal, poultry and aquatic life behavior and management, Faculty of Veterinary Medicine, Assiut University, Assiut 71526, Egypt
| | - Fatma Abo Zakaib Ali
- Department of Pathology and Clinical Pathology, Faculty of Veterinary Medicine, Sohag University, Sohag 82524, Egypt
| | - Fatma M Abdel-Maksoud
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Assiut University, Assiut 71526, Egypt.
| | - Manal A M Mahmoud
- Department of Animal Hygiene and environmental pollution, Faculty of Veterinary Medicine, Assiut University, Assiut 71526, Egypt
| | - F M El-Hossary
- Physics Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
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16
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Hu X, Chen M, Nawaz J, Duan X. Regulatory Mechanisms of Natural Active Ingredients and Compounds on Keratinocytes and Fibroblasts in Mitigating Skin Photoaging. Clin Cosmet Investig Dermatol 2024; 17:1943-1962. [PMID: 39224224 PMCID: PMC11368101 DOI: 10.2147/ccid.s478666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2024] [Accepted: 08/16/2024] [Indexed: 09/04/2024]
Abstract
Background The mechanism underlying skin photoaging remains elusive because of the intricate cellular and molecular changes that contribute to this phenomenon, which have yet to be elucidated. In photoaging, the roles of keratinocytes and fibroblasts are vital for maintaining skin structure and elasticity. But these cells can get photo-induced damage during photoaging, causing skin morphological changes. Recently, the function of natural active ingredients in treating and preventing photoaging has drawn more attention, with researches often focusing on keratinocytes and fibroblasts. Methods We searched for studies published from 2007 to January 2024 in the Web of Science, PubMed, and ScienceDirect databases through the following keywords: natural plant, natural plant products or phytochemicals, traditional Chinese Medicine or Chinese herbal, plant extracts, solar skin aging, skin photoaging, and skin wrinkling. This review conducted the accordance of Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines. Results In total, 87 researches were included in this review (Figure 1). In keratinocytes, natural compounds may primarily regulate signal pathways such as the NF-κB, MAPK, PI3K/AKT, and Nrf2/ARE pathways, reducing inflammation and cellular damage, thus slowing skin photoaging. Additionally, in fibroblasts, natural active ingredients primarily promote the TGF-β pathway, inhibit MMPs activity, and enhance collagen synthesis while potentially modulating the mTOR pathway, thereby protecting the dermal collagen network and reducing wrinkle formation. Several trials showed that natural compounds that regulate keratinocytes and fibroblasts responses have significant and safe therapeutic effects. Conclusion The demand for natural product-based ingredients in sunscreen formulations is rising. Natural compounds show promising anti-photoaging effects by targeting cellular pathways in keratinocytes and fibroblasts, providing potential therapeutic strategies. However, comprehensive clinical studies are needed to verify their efficacy and safety in mitigating photoaging, which should use advanced pharmacological methods to uncover the complex anti-photoaging mechanisms of natural compounds.
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Affiliation(s)
- Xinru Hu
- Department of Dermatovenereology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, People’s Republic of China
| | - Meng Chen
- Department of Dermatovenereology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, People’s Republic of China
| | - Jahanzeb Nawaz
- Department of Dermatovenereology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, People’s Republic of China
| | - Xi Duan
- Department of Dermatovenereology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan, People’s Republic of China
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17
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Wang Z, Thakare RP, Chitale S, Mishra AK, Goldstein SI, Fan AC, Li R, Zhu LJ, Brown LE, Cencic R, Huang S, Green MR, Pelletier J, Malonia SK, Porco JA. Identification of Rocaglate Acyl Sulfamides as Selective Inhibitors of Glioblastoma Stem Cells. ACS CENTRAL SCIENCE 2024; 10:1640-1656. [PMID: 39220711 PMCID: PMC11363328 DOI: 10.1021/acscentsci.4c01073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2024] [Revised: 07/22/2024] [Accepted: 07/23/2024] [Indexed: 09/04/2024]
Abstract
Glioblastoma (GBM) is the most aggressive and frequently occurring type of malignant brain tumor in adults. The initiation, progression, and recurrence of malignant tumors are known to be driven by a small subpopulation of cells known as tumor-initiating cells or cancer stem cells (CSCs). GBM CSCs play a pivotal role in orchestrating drug resistance and tumor relapse. As a prospective avenue for GBM intervention, the targeted suppression of GBM CSCs holds considerable promise. In this study, we found that rocaglates, compounds which are known to inhibit translation via targeting of the DEAD-box helicase eIF4A, exert a robust, dose-dependent cytotoxic impact on GBM CSCs with minimal killing of nonstem GBM cells. Subsequent optimization identified novel rocaglate derivatives (rocaglate acyl sulfamides or Roc ASFs) that selectively inhibit GBM CSCs with nanomolar EC50 values. Furthermore, comparative evaluation of a lead CSC-optimized Roc ASF across diverse mechanistic and target profiling assays revealed suppressed translation inhibition relative to that of other CSC-selective rocaglates, with enhanced targeting of the DEAD-box helicase DDX3X, a recently identified secondary target of rocaglates. Overall, these findings suggest a promising therapeutic strategy for targeting GBM CSCs.
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Affiliation(s)
- Zihao Wang
- Department
of Chemistry and Center for Molecular Discovery (BU-CMD), Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Ritesh P. Thakare
- Department
of Molecular, Cell and Cancer Biology, University
of Massachusetts Chan Medical School, Worcester, Massachusetts 01605, United States
| | - Shalaka Chitale
- Department
of Molecular, Cell and Cancer Biology, University
of Massachusetts Chan Medical School, Worcester, Massachusetts 01605, United States
| | - Alok K. Mishra
- Department
of Molecular, Cell and Cancer Biology, University
of Massachusetts Chan Medical School, Worcester, Massachusetts 01605, United States
| | - Stanley I. Goldstein
- Boston
University Target Discovery Laboratory (BU-TDL), Boston, Massachusetts 02215, United States
- Department
of Pharmacology, Physiology, and Biophysics, Boston University, Boston, Massachusetts 02118, United States
| | - Alice C. Fan
- Department
of Chemistry and Center for Molecular Discovery (BU-CMD), Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
- Boston
University Target Discovery Laboratory (BU-TDL), Boston, Massachusetts 02215, United States
| | - Rui Li
- Department
of Molecular, Cell and Cancer Biology, University
of Massachusetts Chan Medical School, Worcester, Massachusetts 01605, United States
- Department
of Molecular Medicine and Program in Bioinformatics and Integrative
Biology, University of Massachusetts Chan
Medical School, Worcester, Massachusetts 01605, United States
| | - Lihua Julie Zhu
- Department
of Molecular, Cell and Cancer Biology, University
of Massachusetts Chan Medical School, Worcester, Massachusetts 01605, United States
- Department
of Molecular Medicine and Program in Bioinformatics and Integrative
Biology, University of Massachusetts Chan
Medical School, Worcester, Massachusetts 01605, United States
| | - Lauren E. Brown
- Department
of Chemistry and Center for Molecular Discovery (BU-CMD), Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
| | - Regina Cencic
- Department
of Biochemistry, McGill University, Montreal, QC H3G 1Y6, Canada
| | - Sidong Huang
- Department
of Biochemistry, McGill University, Montreal, QC H3G 1Y6, Canada
| | - Michael R. Green
- Department
of Molecular, Cell and Cancer Biology, University
of Massachusetts Chan Medical School, Worcester, Massachusetts 01605, United States
| | - Jerry Pelletier
- Department
of Biochemistry, McGill University, Montreal, QC H3G 1Y6, Canada
| | - Sunil K. Malonia
- Department
of Molecular, Cell and Cancer Biology, University
of Massachusetts Chan Medical School, Worcester, Massachusetts 01605, United States
| | - John A. Porco
- Department
of Chemistry and Center for Molecular Discovery (BU-CMD), Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
- Boston
University Target Discovery Laboratory (BU-TDL), Boston, Massachusetts 02215, United States
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18
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Holm H, Magnusson M, Jujić A, Lagrange J, Bozec E, Lamiral Z, Bresso E, Huttin O, Baudry G, Monzo L, Rossignol P, Zannad F, Girerd N. Association of ventricular-arterial coupling with biomarkers involved in heart failure pathophysiology - the STANISLAS cohort. Eur J Heart Fail 2024. [PMID: 39189882 DOI: 10.1002/ejhf.3411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 07/21/2024] [Accepted: 07/25/2024] [Indexed: 08/28/2024] Open
Abstract
AIMS Impaired left ventricular-arterial coupling (VAC) has been shown to correlate with worse prognosis in cardiac diseases and heart failure (HF). The extent of the relationship between VAC and circulating biomarkers associated with HF has been scarcely documented. We aimed to explore associations of VAC with proteins involved in HF pathophysiology within a large population-based cohort of middle-aged individuals. METHODS AND RESULTS In the forth visit of the STANISLAS family cohort, involving 1309 participants (mean age 48 ± 14 years; 48% male) from parent and children generations, we analysed the association of 32 HF-related proteins with non-invasively assessed VAC using pulse wave velocity (PWV)/global longitudinal strain (GLS) and arterial elastance (Ea)/ventricular end-systolic elastance (Ees). Among the 32 tested proteins, fatty acid-binding protein adipocyte 4, interleukin-6, growth differentiation factor 15, matrix metalloproteinase (MMP)-1, and MMP-9 and adrenomedullin were positively associated with PWV/GLS whereas transforming growth factor beta receptor type 3, MMP-2 and N-terminal pro-B-type natriuretic peptide (NT-proBNP) were negatively associated. In multivariable models, only MMP-2 and NT-proBNP were significantly and inversely associated with PWV/GLS in the whole population and in the parent generation. Higher levels of NT-proBNP were also negatively associated with Ea/Ees in the whole cohort but this association did not persist in the parent subgroup. CONCLUSION Elevated MMP-2 and NT-proBNP levels correlate with better VAC (lower PWV/GLS), possibly indicating a compensatory cardiovascular response to regulate left ventricular pressure amidst cardiac remodelling and overload.
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Affiliation(s)
- Hannes Holm
- Department of Clinical Sciences, Lund University, Malmö, Sweden
- Department of Cardiology, Skåne University Hospital, Malmö, Sweden
| | - Martin Magnusson
- Department of Clinical Sciences, Lund University, Malmö, Sweden
- Department of Cardiology, Skåne University Hospital, Malmö, Sweden
- Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden
- Hypertension in Africa Research Team (HART), North-West University, Potchefstroom, South Africa
| | - Amra Jujić
- Department of Clinical Sciences, Lund University, Malmö, Sweden
- Department of Cardiology, Skåne University Hospital, Malmö, Sweden
| | - Jérémy Lagrange
- Université de Lorraine, Inserm, Centre d'Investigations Cliniques-1433, and Inserm, CHRU Nancy, F-CRIN INI-CRCT, Nancy, France
| | - Erwan Bozec
- Université de Lorraine, Inserm, Centre d'Investigations Cliniques-1433, and Inserm, CHRU Nancy, F-CRIN INI-CRCT, Nancy, France
| | - Zohra Lamiral
- Université de Lorraine, Inserm, Centre d'Investigations Cliniques-1433, and Inserm, CHRU Nancy, F-CRIN INI-CRCT, Nancy, France
| | - Emmanuel Bresso
- Université de Lorraine, Inserm, Centre d'Investigations Cliniques-1433, and Inserm, CHRU Nancy, F-CRIN INI-CRCT, Nancy, France
| | - Olivier Huttin
- Université de Lorraine, Inserm, Centre d'Investigations Cliniques-1433, and Inserm, CHRU Nancy, F-CRIN INI-CRCT, Nancy, France
| | - Guillaume Baudry
- Université de Lorraine, Inserm, Centre d'Investigations Cliniques-1433, and Inserm, CHRU Nancy, F-CRIN INI-CRCT, Nancy, France
| | - Luca Monzo
- Université de Lorraine, Inserm, Centre d'Investigations Cliniques-1433, and Inserm, CHRU Nancy, F-CRIN INI-CRCT, Nancy, France
| | - Patrick Rossignol
- Université de Lorraine, Inserm, Centre d'Investigations Cliniques-1433, and Inserm, CHRU Nancy, F-CRIN INI-CRCT, Nancy, France
| | - Faiez Zannad
- Université de Lorraine, Inserm, Centre d'Investigations Cliniques-1433, and Inserm, CHRU Nancy, F-CRIN INI-CRCT, Nancy, France
| | - Nicolas Girerd
- Université de Lorraine, Inserm, Centre d'Investigations Cliniques-1433, and Inserm, CHRU Nancy, F-CRIN INI-CRCT, Nancy, France
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19
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Read DF, Booth GT, Daza RM, Jackson DL, Gladden RG, Srivatsan SR, Ewing B, Franks JM, Spurrell CH, Gomes AR, O'Day D, Gogate AA, Martin BK, Larson H, Pfleger C, Starita L, Lin Y, Shendure J, Lin S, Trapnell C. Single-cell analysis of chromatin and expression reveals age- and sex-associated alterations in the human heart. Commun Biol 2024; 7:1052. [PMID: 39187646 PMCID: PMC11347658 DOI: 10.1038/s42003-024-06582-y] [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: 05/30/2022] [Accepted: 07/11/2024] [Indexed: 08/28/2024] Open
Abstract
Sex differences and age-related changes in the human heart at the tissue, cell, and molecular level have been well-documented and many may be relevant for cardiovascular disease. However, how molecular programs within individual cell types vary across individuals by age and sex remains poorly characterized. To better understand this variation, we performed single-nucleus combinatorial indexing (sci) ATAC- and RNA-Seq in human heart samples from nine donors. We identify hundreds of differentially expressed genes by age and sex and find epigenetic signatures of variation in ATAC-Seq data in this discovery cohort. We then scale up our single-cell RNA-Seq analysis by combining our data with five recently published single nucleus RNA-Seq datasets of healthy adult hearts. We find variation such as metabolic alterations by sex and immune changes by age in differential expression tests, as well as alterations in abundance of cardiomyocytes by sex and neurons with age. In addition, we compare our adult-derived ATAC-Seq profiles to analogous fetal cell types to identify putative developmental-stage-specific regulatory factors. Finally, we train predictive models of cell-type-specific RNA expression levels utilizing ATAC-Seq profiles to link distal regulatory sequences to promoters, quantifying the predictive value of a simple TF-to-expression regulatory grammar and identifying cell-type-specific TFs. Our analysis represents the largest single-cell analysis of cardiac variation by age and sex to date and provides a resource for further study of healthy cardiac variation and transcriptional regulation at single-cell resolution.
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Affiliation(s)
- David F Read
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Gregory T Booth
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Riza M Daza
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Dana L Jackson
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Rula Green Gladden
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Sanjay R Srivatsan
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Brent Ewing
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Jennifer M Franks
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | | | | | - Diana O'Day
- Brotman Baty Institute for Precision Medicine, Seattle, WA, USA
| | - Aishwarya A Gogate
- Brotman Baty Institute for Precision Medicine, Seattle, WA, USA
- Seattle Children's Research Institute, Seattle, WA, USA
| | - Beth K Martin
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Haleigh Larson
- Brotman Baty Institute for Precision Medicine, Seattle, WA, USA
| | - Christian Pfleger
- University of Washington School of Medicine, Division of Cardiology, Seattle, WA, USA
| | - Lea Starita
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
- Brotman Baty Institute for Precision Medicine, Seattle, WA, USA
| | - Yiing Lin
- Department of Surgery, Washington University, St Louis, MO, USA
| | - Jay Shendure
- Brotman Baty Institute for Precision Medicine, Seattle, WA, USA.
- Seattle Children's Research Institute, Seattle, WA, USA.
- Howard Hughes Medical Institute, Seattle, WA, USA.
- Allen Discovery Center for Cell Lineage Tracing, Seattle, WA, USA.
| | - Shin Lin
- University of Washington School of Medicine, Division of Cardiology, Seattle, WA, USA.
| | - Cole Trapnell
- Brotman Baty Institute for Precision Medicine, Seattle, WA, USA.
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20
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Niu J, Wang S, Qiao X, Yu S, Yu Z, Jin Y, Huang M, Wang L, Song L. CgIκB2 negatively regulates the expression of interferon-like protein by Rel/NF-κB signal in Crassostrea gigas. FISH & SHELLFISH IMMUNOLOGY 2024; 153:109853. [PMID: 39173983 DOI: 10.1016/j.fsi.2024.109853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Revised: 08/19/2024] [Accepted: 08/19/2024] [Indexed: 08/24/2024]
Abstract
Inhibitors of NF-κB (IκBs) have been implicated as major components of the Rel/NF-κB signaling pathway, playing an important negative regulatory role in host antiviral immunity such as in the activation of interferon (IFN) in vertebrates. In the present study, the immunomodulatory effect of IκB (CgIκB2) on the expression of interferon-like protein (CgIFNLP) was evaluated in Pacific oyster (Crassostrea gigas). After poly (I:C) stimulation, the mRNA expression level of CgIκB2 in haemocytes was significantly down-regulated at 3-12 h while up-regulated at 48-72 h. The mRNA expression of CgIκB2 in haemocytes was significantly up-regulated at 3 h after rCgIFNLP stimulation. In the CgIκB2-RNAi oysters, the mRNA expression of CgIFNLP, interferon regulatory factor-8 (CgIRF8) and NF-κB subunit (CgRel), the abundance of CgIFNLP and CgIRF8 protein in haemocytes, as well as the abundance of CgRel protein in nucleus were significantly increased after poly (I:C) stimulation. Immunofluorescence assay showed that nuclear translocation of CgIRF8 and CgRel protein was promoted in CgIκB2-RNAi oysters compared with that in EGFP-RNAi group. In the CgRel-RNAi oysters, the mRNA and protein expression level of CgIFNLP significantly down-regulated after poly (I:C) stimulation. The collective results indicated that CgIκB2 plays an important role in regulating CgIFNLP expression through its effects on Rel/NF-κB and IRF signaling pathways.
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Affiliation(s)
- Jixiang Niu
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Functional Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
| | - Sicong Wang
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Functional Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
| | - Xue Qiao
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Functional Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China.
| | - Simiao Yu
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Functional Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
| | - Zhuo Yu
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Functional Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
| | - Yuhao Jin
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Functional Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
| | - Mengyue Huang
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Functional Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
| | - Lingling Wang
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Functional Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China.
| | - Linsheng Song
- Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Functional Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
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21
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Prasad S, Singh S, Menge S, Mohapatra I, Kim S, Helland L, Singh G, Singh A. Gut redox and microbiome: charting the roadmap to T-cell regulation. Front Immunol 2024; 15:1387903. [PMID: 39234241 PMCID: PMC11371728 DOI: 10.3389/fimmu.2024.1387903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Accepted: 07/31/2024] [Indexed: 09/06/2024] Open
Abstract
The gastrointestinal (GI) tract redox environment, influenced by commensal microbiota and bacterial-derived metabolites, is crucial in shaping T-cell responses. Specifically, metabolites from gut microbiota (GM) exhibit robust anti-inflammatory effects, fostering the differentiation and regulation of CD8+ tissue-resident memory (TRM) cells, mucosal-associated invariant T (MAIT) cells, and stabilizing gut-resident Treg cells. Nitric oxide (NO), a pivotal redox mediator, emerges as a central regulator of T-cell functions and gut inflammation. NO impacts the composition of the gut microbiome, driving the differentiation of pro-inflammatory Th17 cells and exacerbating intestinal inflammation, and supports Treg expansion, showcasing its dual role in immune homeostasis. This review delves into the complex interplay between GI redox balance and GM metabolites, elucidating their profound impact on T-cell regulation. Additionally, it comprehensively emphasizes the critical role of GI redox, particularly reactive oxygen species (ROS) and NO, in shaping T-cell phenotype and functions. These insights offer valuable perspectives on disease mechanisms and potential therapeutic strategies for conditions associated with oxidative stress. Understanding the complex cross-talk between GI redox, GM metabolites, and T-cell responses provides valuable insights into potential therapeutic avenues for immune-mediated diseases, underscoring the significance of maintaining GI redox balance for optimal immune health.
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Affiliation(s)
- Sujata Prasad
- Translational Division, MLM Labs, LLC, Oakdale, MN, United States
| | - Shilpi Singh
- Department of Neurosurgery, University of Minnesota, Minneapolis, MN, United States
| | - Samuel Menge
- Department of Surgery, Schulze Diabetes Institute, University of Minnesota, Minneapolis, MN, United States
| | - Iteeshree Mohapatra
- Department of Veterinary and Biomedical Sciences, University of Minnesota, Saint Paul, MN, United States
| | - Stefan Kim
- Department of Neurosurgery, University of Minnesota, Minneapolis, MN, United States
| | - Logan Helland
- Department of Neurosurgery, University of Minnesota, Minneapolis, MN, United States
| | - Gatikrushna Singh
- Department of Neurosurgery, University of Minnesota, Minneapolis, MN, United States
| | - Amar Singh
- Department of Surgery, Schulze Diabetes Institute, University of Minnesota, Minneapolis, MN, United States
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22
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Gu X, Zhou H, Miao M, Hu D, Wang X, Zhou J, Teichmann AT, Yang Y, Wang C. Therapeutic Potential of Natural Resources Against Endometriosis: Current Advances and Future Perspectives. Drug Des Devel Ther 2024; 18:3667-3696. [PMID: 39188919 PMCID: PMC11345706 DOI: 10.2147/dddt.s464910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 07/09/2024] [Indexed: 08/28/2024] Open
Abstract
Endometriosis (EMS) is defined as the appearance, growth, infiltration, and repeated bleeding of endometrioid tissue (glands and stroma) outside the uterus cavity, which can form nodules and masses. Endometriosis is a chronic inflammatory estrogen-dependent disease and occurs in women of reproductive age. This disorder may significantly affect the quality of life of patients. The pathogenic processes involved in the development and maintenance of endometriosis remain unclear. Current treatment options for endometriosis mainly include drug therapy and surgery. Drug therapy mainly ties to the use of non-steroidal anti-inflammatory drugs (NSAIDs) and hormonal drugs. However, these drugs may produce adverse effects when used for long-term treatment of endometriosis, such as nausea, vomiting gastrointestinal reactions, abnormal liver and kidney function, gastric ulcers, and thrombosis. Although endometriosis lesions can be surgically removed, the disease has a high recurrence rate after surgical resection, with a recurrence rate of 21.5% within 2 years and 40% to 50% within 5 years. Thus, there is an urgent need to develop alternative or additional therapies for the treatment of endometriosis. In this review, we give a systematic summary of therapeutic multiple component prescriptions (including traditional Chinese medicine and so on), bioactive crude extracts of plants/herbs and purified compounds and their newly found mechanisms reported in literature in recent years against endometriosis.
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Affiliation(s)
- Xia Gu
- Sichuan Provincial Center for Gynaecology and Breast Diseases, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, People’s Republic of China
- Department of Gynaecology and Obstetrics, Leshan People’s Hospital, Leshan, 614003, People’s Republic of China
| | - Hui Zhou
- Sichuan Provincial Center for Gynaecology and Breast Diseases, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, People’s Republic of China
| | - Mengyue Miao
- Sichuan Provincial Center for Gynaecology and Breast Diseases, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, People’s Republic of China
| | - Daifeng Hu
- Sichuan Provincial Center for Gynaecology and Breast Diseases, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, People’s Republic of China
| | - Xinyue Wang
- The Basic Medical College, Army Medical University, Chongqing, 400038, People’s Republic of China
| | - Jing Zhou
- Department of Endocrinology, Chengdu Third People’s Hospital, Chengdu, 610014, People’s Republic of China
| | - Alexander Tobias Teichmann
- Sichuan Provincial Center for Gynaecology and Breast Diseases, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, People’s Republic of China
| | - Youzhe Yang
- Sichuan Provincial Center for Gynaecology and Breast Diseases, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, People’s Republic of China
- Academician (Expert) Workstation of Sichuan Province, Luzhou, 646000, People’s Republic of China
| | - Chunyan Wang
- Sichuan Provincial Center for Gynaecology and Breast Diseases, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, People’s Republic of China
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23
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Dutta D, Al Hoque A, Paul B, Park JH, Chowdhury C, Quadir M, Banerjee S, Choudhury A, Laha S, Sepay N, Boro P, Kaipparettu BA, Mukherjee B. EpCAM-targeted betulinic acid analogue nanotherapy improves therapeutic efficacy and induces anti-tumorigenic immune response in colorectal cancer tumor microenvironment. J Biomed Sci 2024; 31:81. [PMID: 39164686 PMCID: PMC11334571 DOI: 10.1186/s12929-024-01069-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 07/09/2024] [Indexed: 08/22/2024] Open
Abstract
BACKGROUND Betulinic acid (BA) has been well investigated for its antiproliferative and mitochondrial pathway-mediated apoptosis-inducing effects on various cancers. However, its poor solubility and off-target activity have limited its utility in clinical trials. Additionally, the immune modulatory role of betulinic acid analogue in the tumor microenvironment (TME) is largely unknown. Here, we designed a potential nanotherapy for colorectal cancer (CRC) with a lead betulinic acid analogue, named as 2c, carrying a 1,2,3-triazole-moiety attached to BA through a linker, found more effective than BA for inhibiting CRC cell lines, and was chosen here for this investigation. Epithelial cell adhesion molecule (EpCAM) is highly overexpressed on the CRC cell membrane. A single-stranded short oligonucleotide sequence, aptamer (Apt), that folds into a 3D-defined architecture can be used as a targeting ligand for its specific binding to a target protein. EpCAM targeting aptamer was designed for site-specific homing of aptamer-conjugated-2c-loaded nanoparticles (Apt-2cNP) at the CRC tumor site to enhance therapeutic potential and reduce off-target toxicity in normal cells. We investigated the in vitro and in vivo therapeutic efficacy and anti-tumorigenic immune response of aptamer conjugated nanotherapy in CRC-TME. METHODS After the characterization of nanoengineered aptamer conjugated betulinic acid nanotherapy, we evaluated therapeutic efficacy, tumor targeting efficiency, and anti-tumorigenic immune response using cell-based assays and mouse and rat models. RESULTS We found that Apt-2cNP improved drug bioavailability, enhanced its biological half-life, improved antiproliferative activity, and minimized off-target cytotoxicity. Importantly, in an in vivo TME, Apt-2cNP showed promising signs of anti-tumorigenic immune response (increased mDC/pDC ratio, enhanced M1 macrophage population, and CD8 T-cells). Furthermore, in vivo upregulation of pro-apoptotic while downregulation of anti-apoptotic genes and significant healing efficacy on cancer tissue histopathology suggest that Apt-2cNP had predominantly greater therapeutic potential than the non-aptamer-conjugated nanoparticles and free drug. Moreover, we observed greater tumor accumulation of the radiolabeled Apt-2cNP by live imaging in the CRC rat model. CONCLUSIONS Enhanced therapeutic efficacy and robust anti-tumorigenic immune response of Apt-2cNP in the CRC-TME are promising indicators of its potential as a prospective therapeutic agent for managing CRC. However, further studies are warranted.
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Affiliation(s)
- Debasmita Dutta
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA.
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, ND, USA.
- Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India.
- Department of Medical Oncology, Dana Farber Cancer Institute, Boston, MA, USA.
- Harvard Medical School, Boston, MA, USA.
| | - Ashique Al Hoque
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, ND, USA
- Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - Brahamacharry Paul
- Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - Jun Hyoung Park
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | | | - Mohiuddin Quadir
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, ND, USA
| | - Soumyabrata Banerjee
- Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
- Department of Psychology and Neuroscience Program, Central Michigan University, Mount Pleasant, MI, 48859, USA
- Department of Human Physiology, Vidyasagar University, Midnapore, 721102, West Bengal, India
| | | | - Soumik Laha
- CSIR- Indian Institute of Chemical Biology, Kolkata, India
| | - Nayim Sepay
- Department of Chemistry, Jadavpur University, Kolkata, India
| | - Priyanka Boro
- CSIR- Indian Institute of Chemical Biology, Kolkata, India
| | | | - Biswajit Mukherjee
- Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India.
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24
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Rodriguez Fernandez V, Amato R, Piaggi S, Pinto B, Casini G, Bruschi F. A New Ex Vivo Model Based on Mouse Retinal Explants for the Study of Ocular Toxoplasmosis. Pathogens 2024; 13:701. [PMID: 39204301 PMCID: PMC11356793 DOI: 10.3390/pathogens13080701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2024] [Revised: 08/05/2024] [Accepted: 08/18/2024] [Indexed: 09/04/2024] Open
Abstract
Ocular toxoplasmosis is the most prevalent clinical manifestation of T. gondii infection, which causes irreversible retinal damage. Different experimental models have been developed to study this pathology. In the present study, a new, ex vivo model is proposed to contribute to the elucidation of disease mechanisms and to possible therapeutic solutions. Ex-vivo retinal explants, prepared from mouse retinas following established protocols, were incubated with T. gondii tachyzoites maintained in Vero cells. At different times, starting at 12 h up to 10 days of incubation, the explants were analyzed with immunofluorescence and Western blot to investigate their responses to parasite infection. T. gondii invasion of the retinal thickness was evident after 3 days in culture, where parasites could be detected around retinal cell nuclei. This was paralleled by putative cyst formation and microglial activation. At the same time, an evident increase in inflammatory and oxidative stress markers was detected in infected explants compared to controls. Cell death also appeared to occur in retinal explants after 3 days of T. gondii infection, and it was characterized by increased necroptotic but not apoptotic markers. The proposed model recapitulates the main characteristics of T. gondii retinal infection within 3 days of incubation and, therefore, allows for studying the very early events of the process. In addition, it requires only a limited number of animals and offers easy manipulation and accessibility for setting up different experimental conditions and assessing the effects of putative drugs for therapy.
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Affiliation(s)
- Veronica Rodriguez Fernandez
- Department of Translational Research, School of Medicine, University of Pisa, 56126 Pisa, Italy
- Department of Infectious Diseases and Public Health, La Sapienza University, 00185 Rome, Italy
| | - Rosario Amato
- Department of Biology, University of Pisa, 56126 Pisa, Italy
| | - Simona Piaggi
- Department of Translational Research, School of Medicine, University of Pisa, 56126 Pisa, Italy
| | - Barbara Pinto
- Department of Translational Research, School of Medicine, University of Pisa, 56126 Pisa, Italy
| | - Giovanni Casini
- Department of Biology, University of Pisa, 56126 Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, 56126 Pisa, Italy
| | - Fabrizio Bruschi
- Department of Translational Research, School of Medicine, University of Pisa, 56126 Pisa, Italy
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25
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Federici L, Masulli M, De Laurenzi V, Allocati N. The Role of S-Glutathionylation in Health and Disease: A Bird's Eye View. Nutrients 2024; 16:2753. [PMID: 39203889 PMCID: PMC11357436 DOI: 10.3390/nu16162753] [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: 07/29/2024] [Revised: 08/14/2024] [Accepted: 08/16/2024] [Indexed: 09/03/2024] Open
Abstract
Protein glutathionylation is a reversible post-translational modification that involves the attachment of glutathione to cysteine residues. It plays a role in the regulation of several cellular processes and protection against oxidative damage. Glutathionylation (GS-ylation) modulates protein function, inhibits or enhances enzymatic activity, maintains redox homeostasis, and shields several proteins from irreversible oxidative stress. Aberrant GS-ylation patterns are thus implicated in various diseases, particularly those associated with oxidative stress and inflammation, such as cardiovascular diseases, neurodegenerative disorders, cancer, and many others. Research in the recent years has highlighted the potential to manipulate protein GS-ylation for therapeutic purposes with strategies that imply both its enhancement and inhibition according to different cases. Moreover, it has become increasingly evident that monitoring the GS-ylation status of selected proteins offers diagnostic potential in different diseases. In this review, we try to summarize recent research in the field with a focus on our current understanding of the molecular mechanisms related to aberrant protein GS-ylation.
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Affiliation(s)
- Luca Federici
- Department of Innovative Technologies in Medicine and Dentistry, University “G. d’ Annunzio”, 66100 Chieti, Italy; (L.F.); (M.M.); (V.D.L.)
- CAST (Center for Advanced Studies and Technology), University “G. d’ Annunzio”, 66100 Chieti, Italy
| | - Michele Masulli
- Department of Innovative Technologies in Medicine and Dentistry, University “G. d’ Annunzio”, 66100 Chieti, Italy; (L.F.); (M.M.); (V.D.L.)
| | - Vincenzo De Laurenzi
- Department of Innovative Technologies in Medicine and Dentistry, University “G. d’ Annunzio”, 66100 Chieti, Italy; (L.F.); (M.M.); (V.D.L.)
- CAST (Center for Advanced Studies and Technology), University “G. d’ Annunzio”, 66100 Chieti, Italy
| | - Nerino Allocati
- Department of Innovative Technologies in Medicine and Dentistry, University “G. d’ Annunzio”, 66100 Chieti, Italy; (L.F.); (M.M.); (V.D.L.)
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Ramerth A, Chapple B, Winter J, Moore W. The Other Side of the Perfect Cup: Coffee-Derived Non-Polyphenols and Their Roles in Mitigating Factors Affecting the Pathogenesis of Type 2 Diabetes. Int J Mol Sci 2024; 25:8966. [PMID: 39201652 PMCID: PMC11354961 DOI: 10.3390/ijms25168966] [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: 07/01/2024] [Revised: 08/01/2024] [Accepted: 08/03/2024] [Indexed: 09/02/2024] Open
Abstract
The global prevalence of type 2 diabetes (T2D) is 10.5% among adults in the age range of 20-79 years. The primary marker of T2D is persistent fasting hyperglycemia, resulting from insulin resistance and β-cell dysfunction. Multiple factors can promote the development of T2D, including obesity, inflammation, and oxidative stress. In contrast, dietary choices have been shown to prevent the onset of T2D. Oatmeal, lean proteins, fruits, and non-starchy vegetables have all been reported to decrease the likelihood of T2D onset. One of the most widely consumed beverages in the world, coffee, has also demonstrated an impressive ability to reduce T2D risk. Coffee contains a diverse array of bioactive molecules. The antidiabetic effects of coffee-derived polyphenols have been thoroughly described and recently reviewed; however, several non-polyphenolic molecules are less prominent but still elicit potent physiological actions. This review summarizes the effects of select coffee-derived non-polyphenols on various aspects of T2D pathogenesis.
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Affiliation(s)
| | | | | | - William Moore
- School of Health Sciences, Department of Biology and Chemistry, Liberty University, Lynchburg, VA 24515, USA; (A.R.); (B.C.); (J.W.)
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27
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Salz R, Vorsteveld EE, van der Made CI, Kersten S, Stemerdink M, Riepe TV, Hsieh TH, Mhlanga M, Netea MG, Volders PJ, Hoischen A, ’t Hoen PA. Multi-omic profiling of pathogen-stimulated primary immune cells. iScience 2024; 27:110471. [PMID: 39091463 PMCID: PMC11293528 DOI: 10.1016/j.isci.2024.110471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 04/23/2024] [Accepted: 07/04/2024] [Indexed: 08/04/2024] Open
Abstract
We performed long-read transcriptome and proteome profiling of pathogen-stimulated peripheral blood mononuclear cells (PBMCs) from healthy donors to discover new transcript and protein isoforms expressed during immune responses to diverse pathogens. Long-read transcriptome profiling reveals novel sequences and isoform switching induced upon pathogen stimulation, including transcripts that are difficult to detect using traditional short-read sequencing. Widespread loss of intron retention occurs as a common result of all pathogen stimulations. We highlight novel transcripts of NFKB1 and CASP1 that may indicate novel immunological mechanisms. RNA expression differences did not result in differences in the amounts of secreted proteins. Clustering analysis of secreted proteins revealed a correlation between chemokine (receptor) expression on the RNA and protein levels in C. albicans- and poly(I:C)-stimulated PBMCs. Isoform aware long-read sequencing of pathogen-stimulated immune cells highlights the potential of these methods to identify novel transcripts, revealing a more complex transcriptome landscape than previously appreciated.
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Affiliation(s)
- Renee Salz
- Department of Medical BioSciences, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
- RadboudUMC Research Institute for Medical Innovation, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
| | - Emil E. Vorsteveld
- RadboudUMC Research Institute for Medical Innovation, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
- Department of Human Genetics, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
| | - Caspar I. van der Made
- RadboudUMC Research Institute for Medical Innovation, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
- Department of Human Genetics, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
- Department of Internal Medicine and Radboud Centre for Infectious Diseases (RCI), Radboud University Medical Centre, 6525 GA Nijmegen, the Netherlands
| | - Simone Kersten
- RadboudUMC Research Institute for Medical Innovation, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
- Department of Human Genetics, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
| | - Merel Stemerdink
- RadboudUMC Research Institute for Medical Innovation, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
- Department of Otorhinolaryngology, Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
| | - Tabea V. Riepe
- Department of Medical BioSciences, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
- RadboudUMC Research Institute for Medical Innovation, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
- Department of Human Genetics, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
| | - Tsung-han Hsieh
- Department of Cell Biology, Radboud University, 6500 HB Nijmegen, the Netherlands
| | - Musa Mhlanga
- RadboudUMC Research Institute for Medical Innovation, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
- Department of Cell Biology, Radboud University, 6500 HB Nijmegen, the Netherlands
| | - Mihai G. Netea
- Department of Human Genetics, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
- Department of Internal Medicine and Radboud Centre for Infectious Diseases (RCI), Radboud University Medical Centre, 6525 GA Nijmegen, the Netherlands
| | - Pieter-Jan Volders
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Laboratory of Molecular Diagnostics, Department of Clinical Biology, Jessa Hospital, 3500 Hasselt, Belgium
| | - Alexander Hoischen
- RadboudUMC Research Institute for Medical Innovation, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
- Department of Human Genetics, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
- Department of Internal Medicine and Radboud Centre for Infectious Diseases (RCI), Radboud University Medical Centre, 6525 GA Nijmegen, the Netherlands
| | - Peter A.C. ’t Hoen
- Department of Medical BioSciences, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
- RadboudUMC Research Institute for Medical Innovation, Radboud University Medical Center, 6525 GA Nijmegen, the Netherlands
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Xu R, Bi Y, He X, Zhang Y, Zhao X. Kidney-tonifying blood-activating decoction delays ventricular remodeling in rats with chronic heart failure by regulating gut microbiota and metabolites and p38 mitogen-activated protein kinase/p65 nuclear factor kappa-B/aquaporin-4 signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 330:118110. [PMID: 38580189 DOI: 10.1016/j.jep.2024.118110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 03/14/2024] [Accepted: 03/24/2024] [Indexed: 04/07/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Myocardial infarction has likely contributed to the increased prevalence of heart failure(HF).As a result of ventricular remodeling and reduced cardiac function, colonic blood flow decreases, causing mucosal ischemia and hypoxia of the villous structure of the intestinal wall.This damage in gut barrier function increases bowel wall permeability, leading to fluid metabolism disorder,gut microbial dysbiosis, increased gut bacteria translocation into the circulatory system and increased circulating endotoxins, thus promoting a typical inflammatory state.Traditional Chinese Medicine plays a key role in the prevention and treatment of HF.Kidney-tonifying Blood-activating(KTBA) decoction has been proved for clinical treatment of chronic HF.However,the mechanism of KTBA decoction on chronic HF is still unclear. AIMS OF THE STUDY The effect of KTBA decoction on gut microbiota and metabolites and p38MAPK/p65NF-κB/AQP4 signaling in rat colon was studied to investigate the mechanism that KTBA decoction delays ventricular remodeling and regulates water metabolism disorder in rats with HF after myocardial infarction based on the theory of "Kidney Storing Essence and Conducting Water". MATERIAL AND METHODS In vivo,a rat model of HF after myocardial infarction was prepared by ligating the left anterior descending coronary artery combined with exhaustive swimming and starvation.The successful modeling rats were randomly divided into five groups:model group, tolvaptan group(gavaged 1.35mg/(kg•D) tolvaptan),KTBA decoction group(gavaged 15.75g/(kg•D) of KTBA decoction),KTBA decoction combined with SB203580(p38MAPK inhibitor) group(gavaged 15.75g/(kg•D) of KTBA decoction and intraperitoneally injected 1.5mg/(kg•D) of SB203580),and KTBA decoction combined with PDTC(p65NF-kB inhibitor) group(gavaged 15.75g/(kg•D) of KTBA decoction and intraperitoneally injected 120mg/(kg•D) of PDTC).The sham-operation group and model group were gavaged equal volume of normal saline.After 4 weeks of intervention with KTBA decoction,the effect of KTBA decoction on the cardiac structure and function of chronic HF model rats was observed by ultrasonic cardiogram.General state and cardiac index in rats were evaluated.Enzyme linked immunosorbent assay(ELISA) was used to measure N-terminal pro-brain natriuretic peptide (NT-proBNP) concentration in rat serum.Hematoxylin and eosin(H&E) staining,and transmission electron microscope(TEM) were used to observe the morphology and ultrastructure of myocardial and colonic tissue,and myocardial fibrosis was measured by Masson's staining.Cardiac E-cadherin level was detected by Western blot.The mRNA expression and protein expression levels of p38MAPK,I-κBα, p65NF-κB,AQP4,Occludin and ZO-1 in colonic tissue were detected by reverse transcription-quantitative real-time polymerase chain reaction(RT-qPCR) and immunohistochemistry. Protein expression of p38MAPK, p-p38MAPK,I-κBα,p-I-κBα,p65NF-κB, p-p65NF-κB,AQP4,Occludin and ZO-1 in rat colon was detected using Western blot.Colonic microbiota and serum metabolites were respectively analyzed by amplicon sequencing and liquid chromatography-mass spectrometry.In vitro, CCD-841CoN cell was placed in the ischemic solution under hypoxic conditions (94%N2,5%CO2,and 1%O2) in a 37 °C incubator to establish an ischemia and hypoxia model.The CCD-841CoN cells were divided into 7 groups, namely blank group and model group with normal rat serum plus control siRNA, tolvaptan group with rat serum containing tolvaptan plus control siRNA, KTBA group with rat serum containing KTBA plus control siRNA, KTBA plus p38MAPK siRNA group, KTBA plus p65NF-κB siRNA group,and KTBA plus AQP4siRNA group.After 24h and 48h of intervention with KTBA decoction,RT-qPCR,immunofluorescence and Western blot was used to detect the mRNA expression and protein expression levels of p38MAPK,I-κBα,p65NF-κB,AQP4, Occludin and ZO-1 in CCD-841CoN cells. RESULTS Compared with the model, KTBA decoction improved the general state, decraesed the serum NT-proBNP level,HW/BW ratio, LVIDd and LVIDs, increased E-cadherin level,EF and FS,reduced number of collagen fibers deposited in the myocardial interstitium,and recovered irregular arrangement of myofibril and swollen or vacuolated mitochondria with broken crista in myocardium.Moreover, KTBA decoction inhibited the expression of p38MAPK,I-κBα,and p65NF-κB and upregulated AQP4, Occludin and ZO-1 in colon tissues and CCD-841CoN cells.Additionally,p38siRNA or SB203580, p65siRNA or PDTC, and AQP4siRNA partially weakened the protective effects of KTBA in vitro and vivo.Notably,The LEfSe analysis results showed that there were six gut biomaker bacteria in model group, including Allobaculum, Bacillales,Turicibacter, Turicibacterales,Turicibacteraceae,and Bacilli. Besides, three gut biomaker bacteria containing Deltaproteobacteria, Desulfovibrionaceae,and Desulfovibrionales were enriched by KTBA treatment in chronic HF model.There were five differential metabolites, including L-Leucine,Pelargonic acid, Capsidiol,beta-Carotene,and L- Erythrulose, which can be regulated back in the same changed metabolic routes by the intervention of KTBA.L-Leucine had the positive correlation with Bacillales, Turicibacterales,Turicibacteraceae,and Turicibacter.L-Leucine significantly impacts Protein digestion and absorption, Mineral absorption,and Central carbon metabolism in cancer regulated by KTBA, which is involved in the expression of MAPK and tight junction in intestinal epithelial cells. CONCLUSIONS KTBA decoction manipulates the expression of several key proteins in the p38MAPK/p65NF-κB/AQP4 signaling pathway, modulates gut microbiota and metabolites toward a more favorable profile, improves gut barrier function, delays cardiomyocyte hypertrophy and fibrosis,and improves cardiac function.
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Affiliation(s)
- Rui Xu
- Liaoning University of Traditional Chinese Medicine,Shenyang,Liaoning 110847,China
| | - Yanping Bi
- Jilin Hospital of Integrated Traditional Chinese and Western Medicine,Jilin,Jilin 132000,China
| | - Xiaoteng He
- Liaoning University of Traditional Chinese Medicine,Shenyang,Liaoning 110847,China
| | - Yan Zhang
- The Affiliated Hospital, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning 110032, China.
| | - Xin Zhao
- The Second Hospital, Dalian Medical University, Dalian, Liaoning 116023, China.
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Wang K. The potential therapeutic role of curcumin in osteoporosis treatment: based on multiple signaling pathways. Front Pharmacol 2024; 15:1446536. [PMID: 39175539 PMCID: PMC11338871 DOI: 10.3389/fphar.2024.1446536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Accepted: 07/29/2024] [Indexed: 08/24/2024] Open
Abstract
Osteoporosis is a common chronic metabolic bone disease caused by disturbances in normal bone metabolism and an imbalance between osteoblasts and osteoclasts. Osteoporosis is characterized by a decrease in bone mass and bone density, leading to increased bone fragility. Osteoporosis is usually treated with medications and surgical methods, but these methods often produce certain side effects. Therefore, the use of traditional herbal ingredients for the treatment of osteoporosis has become a focus of attention and a hot topic in recent years. Curcumin, widely distributed among herbs such as turmeric, tulip, and curcuma longa, contains phenolic, terpenoid, and flavonoid components. Modern pharmacological studies have confirmed that curcumin has a variety of functions including antioxidant and anti-inflammatory properties. In addition, curcumin positively regulates the differentiation and promotes the proliferation of osteoblasts, which play a crucial role in bone formation. Multiple studies have shown that curcumin is effective in the treatment of osteoporosis as it interacts with a variety of signaling pathway targets, thereby interfering with the formation of osteoblasts and osteoclasts and regulating the development of osteoporosis. This review summarized the key signaling pathways and their mechanisms of action of curcumin in the prevention and treatment of osteoporosis and analyzed their characteristics and their relationship with osteoporosis and curcumin. This not only proves the medicinal value of curcumin as a traditional herbal ingredient but also further elucidates the molecular mechanism of curcumin's anti-osteoporosis effect, providing new perspectives for the prevention and treatment of osteoporosis through multiple pathways.
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Affiliation(s)
- Keyu Wang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China
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30
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Ng BW, Kaukonen MK, McClements ME, Shamsnajafabadi H, MacLaren RE, Cehajic-Kapetanovic J. Genetic therapies and potential therapeutic applications of CRISPR activators in the eye. Prog Retin Eye Res 2024; 102:101289. [PMID: 39127142 DOI: 10.1016/j.preteyeres.2024.101289] [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: 06/06/2024] [Revised: 08/05/2024] [Accepted: 08/06/2024] [Indexed: 08/12/2024]
Abstract
Conventional gene therapy involving supplementation only treats loss-of-function diseases and is limited by viral packaging sizes, precluding therapy of large genes. The discovery of CRISPR/Cas has led to a paradigm shift in the field of genetic therapy, with the promise of precise gene editing, thus broadening the range of diseases that can be treated. The initial uses of CRISPR/Cas have focused mainly on gene editing or silencing of abnormal variants via utilising Cas endonuclease to trigger the target cell endogenous non-homologous end joining. Subsequently, the technology has evolved to modify the Cas enzyme and even its guide RNA, leading to more efficient editing tools in the form of base and prime editing. Further advancements of this CRISPR/Cas technology itself have expanded its functional repertoire from targeted editing to programmable transactivation, shifting the therapeutic focus to precise endogenous gene activation or upregulation with the potential for epigenetic modifications. In vivo experiments using this platform have demonstrated the potential of CRISPR-activators (CRISPRa) to treat various loss-of-function diseases, as well as in regenerative medicine, highlighting their versatility to overcome limitations associated with conventional strategies. This review summarises the molecular mechanisms of CRISPRa platforms, the current applications of this technology in vivo, and discusses potential solutions to translational hurdles for this therapy, with a focus on ophthalmic diseases.
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Affiliation(s)
- Benjamin Wj Ng
- Oxford Eye Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, UK; Nuffield Laboratory of Ophthalmology, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK; NIHR Oxford Biomedical Research Centre, Oxford, UK
| | - Maria K Kaukonen
- Nuffield Laboratory of Ophthalmology, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK; NIHR Oxford Biomedical Research Centre, Oxford, UK; Department of Medical and Clinical Genetics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Michelle E McClements
- Nuffield Laboratory of Ophthalmology, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK; NIHR Oxford Biomedical Research Centre, Oxford, UK
| | - Hoda Shamsnajafabadi
- Nuffield Laboratory of Ophthalmology, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK; NIHR Oxford Biomedical Research Centre, Oxford, UK
| | - Robert E MacLaren
- Oxford Eye Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, UK; Nuffield Laboratory of Ophthalmology, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK; NIHR Oxford Biomedical Research Centre, Oxford, UK
| | - Jasmina Cehajic-Kapetanovic
- Oxford Eye Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, UK; Nuffield Laboratory of Ophthalmology, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK; NIHR Oxford Biomedical Research Centre, Oxford, UK.
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31
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Dziulko AK, Allen H, Chuong EB. An endogenous retrovirus regulates tumor-specific expression of the immune transcriptional regulator SP140. Hum Mol Genet 2024; 33:1454-1464. [PMID: 38751339 PMCID: PMC11305685 DOI: 10.1093/hmg/ddae084] [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: 02/27/2024] [Revised: 04/24/2024] [Accepted: 05/07/2024] [Indexed: 07/26/2024] Open
Abstract
Speckled Protein 140 (SP140) is a chromatin reader with critical roles regulating immune cell transcriptional programs, and SP140 splice variants are associated with immune diseases including Crohn's disease, multiple sclerosis, and chronic lymphocytic leukemia. SP140 expression is currently thought to be restricted to immune cells. However, by analyzing human transcriptomic datasets from a wide range of normal and cancer cell types, we found recurrent cancer-specific expression of SP140, driven by an alternative intronic promoter derived from an intronic endogenous retrovirus (ERV). The ERV belongs to the primate-specific LTR8B family and is regulated by oncogenic mitogen-activated protein kinase (MAPK) signaling. The ERV drives expression of multiple cancer-specific isoforms, including a nearly full-length isoform that retains all the functional domains of the full-length canonical isoform and is also localized within the nucleus, consistent with a role in chromatin regulation. In a fibrosarcoma cell line, silencing the cancer-specific ERV promoter of SP140 resulted in increased sensitivity to interferon-mediated cytotoxicity and dysregulation of multiple genes. Our findings implicate aberrant ERV-mediated SP140 expression as a novel mechanism contributing to immune gene dysregulation in a wide range of cancer cells.
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Affiliation(s)
- Adam K Dziulko
- Department of Molecular, Cellular, and Developmental Biology and BioFrontiers Institute, University of Colorado Boulder, 3415 Colorado Ave, JSC Biotech Bldg, Boulder, Colorado 80303, USA
| | - Holly Allen
- Department of Molecular, Cellular, and Developmental Biology and BioFrontiers Institute, University of Colorado Boulder, 3415 Colorado Ave, JSC Biotech Bldg, Boulder, Colorado 80303, USA
| | - Edward B Chuong
- Department of Molecular, Cellular, and Developmental Biology and BioFrontiers Institute, University of Colorado Boulder, 3415 Colorado Ave, JSC Biotech Bldg, Boulder, Colorado 80303, USA
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32
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Rosenbaum SR, Hughes CJ, Fields KM, Purdy SC, Gustafson A, Wolin A, Hampton D, Turner N, Ebmeier C, Costello JC, Ford HL. An EYA3/NF-κB/CCL2 signaling axis suppresses cytotoxic NK cells in the pre-metastatic niche to promote triple negative breast cancer metastasis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.31.606072. [PMID: 39211066 PMCID: PMC11360953 DOI: 10.1101/2024.07.31.606072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
Patients with Triple Negative Breast Cancer (TNBC) exhibit high rates of metastases and poor prognoses. The Eyes absent (EYA) family of proteins are developmental transcriptional cofactors/phosphatases that are re-expressed and/or upregulated in numerous cancers. Herein, we demonstrate that EYA3 correlates with decreased survival in breast cancer, and that it strongly, and specifically, regulates metastasis via a novel mechanism that involves NF-kB signaling and an altered innate immune profile at the pre-metastatic niche (PMN). Remarkably, restoration of NF-kB signaling downstream of Eya3 knockdown (KD) restores metastasis without restoring primary tumor growth, isolating EYA3/NF-kB effects to the metastatic site. We show that secreted CCL2, regulated downstream of EYA3/NF-kB, specifically decreases cytotoxic NK cells in the PMN and that re-expression of Ccl2 in Eya3 -KD cells is sufficient to rescue activation/levels of cytotoxic NK cells in vitro and at the PMN, where EYA3-mediated decreases in cytotoxic NK cells are required for metastatic outgrowth. Importantly, analysis of public breast cancer datasets uncovers a significant correlation of EYA3 with NF-kB/CCL2, underscoring the relevance of EYA3/NF-kB/CCL2 to human disease. Our findings suggest that inhibition of EYA3 could be a powerful means to re-activate the innate immune response at the PMN, inhibiting TNBC metastasis. Significance EYA3 promotes metastasis of TNBC cells by promoting NF-kB-mediated CCL2 expression and inhibiting cytotoxic NK cells at the pre-metastatic niche, highlighting a potential therapeutic target in this subset of breast cancer.
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Franks SJ, Gowler PRW, Dunster JL, Turnbull J, Gohir SA, Kelly A, Valdes AM, King JR, Barrett DA, Chapman V, Preston S. Modelling the role of enzymatic pathways in the metabolism of docosahexaenoic acid by monocytes and its association with osteoarthritic pain. Math Biosci 2024; 374:109228. [PMID: 38851528 DOI: 10.1016/j.mbs.2024.109228] [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: 02/09/2024] [Revised: 06/03/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
Chronic pain is a major cause of disability and suffering in osteoarthritis (OA) patients. Endogenous specialised pro-resolving molecules (SPMs) curtail pro-inflammatory responses. One of the SPM intermediate oxylipins, 17-hydroxydocasahexaenoic acid (17-HDHA, a metabolite of docosahexaenoic acid (DHA)), is significantly associated with OA pain. The aim of this multidisciplinary work is to develop a mathematical model to describe the contributions of enzymatic pathways (and the genes that encode them) to the metabolism of DHA by monocytes and to the levels of the down-stream metabolites, 17-HDHA and 14-hydroxydocasahexaenoic acid (14-HDHA), motivated by novel clinical data from a study involving 30 participants with OA. The data include measurements of oxylipin levels, mRNA levels, measures of OA severity and self-reported pain scores. We propose a system of ordinary differential equations to characterise associations between the different datasets, in order to determine the homeostatic concentrations of DHA, 17-HDHA and 14-HDHA, dependent upon the gene expression of the associated metabolic enzymes. Using parameter-fitting methods, local sensitivity and uncertainty analysis, the model is shown to fit well qualitatively to experimental data. The model suggests that up-regulation of some ALOX genes may lead to the down-regulation of 17-HDHA and that dosing with 17-HDHA increases the production of resolvins, which helps to down-regulate the inflammatory response. More generally, we explore the challenges and limitations of modelling real data, in particular individual variability, and also discuss the value of gathering additional experimental data motivated by the modelling insights.
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Affiliation(s)
- S J Franks
- School of Mathematical Sciences, University of Nottingham, Nottingham, NG7 2RD, UK.
| | - P R W Gowler
- Pain Centre Versus Arthritis, University of Nottingham Medical School, Queen's Medical Centre, Nottingham, UK; School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK
| | - J L Dunster
- Institute for Cardiovascular and Metabolic Research, University of Reading, UK
| | - J Turnbull
- School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK; NIHR Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, UK; Centre for Analytical Bioscience, Advanced Materials and Healthcare Technologies Division, School of Pharmacy, University of Nottingham, Nottingham, UK
| | - S A Gohir
- NIHR Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, UK
| | - A Kelly
- NIHR Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, UK
| | - A M Valdes
- Pain Centre Versus Arthritis, University of Nottingham Medical School, Queen's Medical Centre, Nottingham, UK; NIHR Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, UK
| | - J R King
- School of Mathematical Sciences, University of Nottingham, Nottingham, NG7 2RD, UK
| | - D A Barrett
- NIHR Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, UK; Centre for Analytical Bioscience, Advanced Materials and Healthcare Technologies Division, School of Pharmacy, University of Nottingham, Nottingham, UK
| | - V Chapman
- Pain Centre Versus Arthritis, University of Nottingham Medical School, Queen's Medical Centre, Nottingham, UK; School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, UK; NIHR Nottingham Biomedical Research Centre, University of Nottingham, Nottingham, UK
| | - S Preston
- School of Mathematical Sciences, University of Nottingham, Nottingham, NG7 2RD, UK
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Chesnokova V, Zonis S, Apaydin T, Barrett R, Melmed S. Non-pituitary growth hormone enables colon cell senescence evasion. Aging Cell 2024; 23:e14193. [PMID: 38724466 PMCID: PMC11320355 DOI: 10.1111/acel.14193] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 03/18/2024] [Accepted: 04/02/2024] [Indexed: 08/15/2024] Open
Abstract
DNA damage-induced senescence is initially sustained by p53. Senescent cells produce a senescence-associated secretory phenotype (SASP) that impacts the aging microenvironment, often promoting cell transformation. Employing normal non-tumorous human colon cells (hNCC) derived from surgical biopsies and three-dimensional human intestinal organoids, we show that local non-pituitary growth hormone (npGH) induced in senescent cells is a SASP component acting to suppress p53. npGH autocrine/paracrine suppression of p53 results in senescence evasion and cell-cycle reentry, as evidenced by increased Ki67 and BrdU incorporation. Post-senescent cells exhibit activated epithelial-to-mesenchymal transition (EMT), and increased cell motility. Nu/J mice harboring GH-secreting HCT116 xenografts with resultant high GH levels and injected intrasplenic with post-senescent hNCC developed fourfold more metastases than did mice harboring control xenografts, suggesting that paracrine npGH enables post-senescent cell transformation. By contrast, senescent cells with suppressed npGH exhibit downregulated Ki67 and decreased soft agar colony formation. Mechanisms underlying these observations include npGH induction by the SASP chemokine CXCL1, which attracts immune effectors to eliminate senescent cells; GH, in turn, suppresses CXCL1, likely by inhibiting phospho-NFκB, resulting in SASP cytokine downregulation. Consistent with these findings, GH-receptor knockout mice exhibited increased colon phospho-NFκB and CXCL1, while GH excess decreased colon CXCL1. The results elucidate mechanisms for local hormonal regulation of microenvironmental changes in DNA-damaged non-tumorous epithelial cells and portray a heretofore unappreciated GH action favoring age-associated epithelial cell transformation.
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Affiliation(s)
- Vera Chesnokova
- Department of MedicineCedars‐Sinai Medical CenterLos AngelesCaliforniaUSA
| | - Svetlana Zonis
- Department of MedicineCedars‐Sinai Medical CenterLos AngelesCaliforniaUSA
| | - Tugce Apaydin
- Department of MedicineCedars‐Sinai Medical CenterLos AngelesCaliforniaUSA
| | - Robert Barrett
- Board of Governors Regenerative Medicine InstituteCedars‐Sinai Medical CenterLos AngelesCaliforniaUSA
| | - Shlomo Melmed
- Department of MedicineCedars‐Sinai Medical CenterLos AngelesCaliforniaUSA
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35
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Clark T, Waller MA, Loo L, Moreno CL, Denes CE, Neely GG. CRISPR activation screens: navigating technologies and applications. Trends Biotechnol 2024; 42:1017-1034. [PMID: 38493051 DOI: 10.1016/j.tibtech.2024.02.007] [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: 11/20/2023] [Revised: 02/06/2024] [Accepted: 02/06/2024] [Indexed: 03/18/2024]
Abstract
Clustered regularly interspaced short palindromic repeats (CRISPR) activation (CRISPRa) has become an integral part of the molecular biology toolkit. CRISPRa genetic screens are an exciting high-throughput means of identifying genes the upregulation of which is sufficient to elicit a given phenotype. Activation machinery is continually under development to achieve greater, more robust, and more consistent activation. In this review, we offer a succinct technological overview of available CRISPRa architectures and a comprehensive summary of pooled CRISPRa screens. Furthermore, we discuss contemporary applications of CRISPRa across broad fields of research, with the aim of presenting a view of exciting emerging applications for CRISPRa screening.
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Affiliation(s)
- Teleri Clark
- Charles Perkins Centre, Dr. John and Anne Chong Lab for Functional Genomics, and School of Life and Environmental Sciences, University of Sydney, Camperdown, New South Wales, Australia
| | - Matthew A Waller
- Charles Perkins Centre, Dr. John and Anne Chong Lab for Functional Genomics, and School of Life and Environmental Sciences, University of Sydney, Camperdown, New South Wales, Australia
| | - Lipin Loo
- Charles Perkins Centre, Dr. John and Anne Chong Lab for Functional Genomics, and School of Life and Environmental Sciences, University of Sydney, Camperdown, New South Wales, Australia
| | - Cesar L Moreno
- Charles Perkins Centre, Dr. John and Anne Chong Lab for Functional Genomics, and School of Life and Environmental Sciences, University of Sydney, Camperdown, New South Wales, Australia
| | - Christopher E Denes
- Charles Perkins Centre, Dr. John and Anne Chong Lab for Functional Genomics, and School of Life and Environmental Sciences, University of Sydney, Camperdown, New South Wales, Australia
| | - G Gregory Neely
- Charles Perkins Centre, Dr. John and Anne Chong Lab for Functional Genomics, and School of Life and Environmental Sciences, University of Sydney, Camperdown, New South Wales, Australia.
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Li J, Li Q, Ma W, Zhang Y, Li X. Expression of MAF bZIP transcription factor B protects against ulcerative colitis through the inhibition of the NF-κB pathway. Immun Inflamm Dis 2024; 12:e1372. [PMID: 39172054 PMCID: PMC11340633 DOI: 10.1002/iid3.1372] [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: 12/18/2023] [Revised: 07/22/2024] [Accepted: 07/30/2024] [Indexed: 08/23/2024] Open
Abstract
PURPOSE The aim of this study was to explore whether MAF bZIP transcription factor B (MAFB) might alleviate ulcerative colitis (UC) in dextran sulfate sodium (DSS)-induced mice and LPS-induced IEC-6 cells. METHODS UC in vivo and in vitro model was established by using DSS and LPS, respectively. The mice body weight and disease activity index (DAI) score were recorded daily, and colon length was measured. Moreover, the permeability was evaluated utilizing a fluorescein isothiocyanate dextran (FITC-Dextran) probe. Histopathological changes of DSS-induced colitis mice was assessed utilizing H&E staining. Next, qRT-PCR was performed to detect IL-1β, IL-6, TNF-α, and IL-10 level in in vivo and in vitro. Furthermore, the level of MDA, SOD, CAT, and GSH were evaluated in colon tissues. Besides, the expressions of tight junction proteins and NF-κB pathway relative proteins were examined in colitis mice and IEC-6 cells using western blot, immunohistochemistry and immunofluorescence. RESULTS MAFB level was downregulated in DSS-induced colitis mice. Moreover, the upregulation of MAFB protected mice from DSS-induced colitis by suppressing DSS-induced inflammation, oxidative stress, and intestinal barrier impairment. We also demonstrated that the upregulation of MAFB inactivated NF-κB pathway in DSS-caused colitis mice. Subsequently, we observed that MAFB upregulation could inhibit LPS-caused epithelial barrier impairment and inflammation in IEC-6 cells. Additionally, MAFB overexpression could suppress the activation of NF-κB pathway in IEC-6 cells. CONCLUSION The upregulation of MAFB could protect against UC via the suppression of inflammation and the intestinal barrier impairment through inhibiting the NF-κB pathway.
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Affiliation(s)
- Jingwen Li
- Department of GastroenterologyShandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinanShandongChina
| | - Qingmin Li
- Department of General PracticeShandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinanShandongChina
- Department of MedicineZhangqiu District Gaoguanzhai Community Health Service CenterJinanShandongChina
| | - Wei Ma
- Department of General PracticeShandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinanShandongChina
| | - Yongsheng Zhang
- Department of General PracticeShandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinanShandongChina
| | - Xiaonan Li
- Department of General PracticeShandong Provincial Hospital Affiliated to Shandong First Medical UniversityJinanShandongChina
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Liu C, Ge P, Zhang B, Chan L, Pang Y, Tao C, Li J, He Q, Liu W, Mou S, Zheng Z, Zhao Z, Sun W, Zhang Q, Wang R, Zhang Y, Wang W, Zhang D, Zhao J. Mass cytometry revealed the circulating immune cell landscape across different Suzuki stages of Moyamoya disease. Immunol Res 2024; 72:654-664. [PMID: 38376705 PMCID: PMC11347468 DOI: 10.1007/s12026-024-09464-x] [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: 12/21/2023] [Accepted: 02/04/2024] [Indexed: 02/21/2024]
Abstract
Moyamoya disease (MMD) is a cerebrovascular disorder marked by progressive arterial narrowing, categorized into six stages known as Suzuki stages based on angiographic features. Growing evidence indicates a pivotal role of systemic immune and inflammatory responses in the initiation and advancement of MMD. This study employs high-dimensional mass cytometry to reveal the immunophenotypic characteristics of peripheral blood immune cells (PBMCs) at various Suzuki stages, offering insights into the progression of MMD. PBMC samples from eight patients with early-stage MMD (Suzuki stages II and III) and eight patients with later-stage MMD (Suzuki stages IV, V, and VI) were analyzed using high-dimensional mass cytometry to evaluate the frequency and phenotype of immune cell subtypes. We identified 15 cell clusters and found that the immunological features of early-stage MMD and later-stage MMD are composed of cluster variations. In this study, we confirmed that, compared to later-stage MMD, the early-stage MMD group exhibits an increase in non-classical monocytes. As the Suzuki stage level increases, the proportions of plasmacytoid DCs and monocyte-derived DCs decrease. Furthermore, T cells, monocytes, DCs, and PMN-MDSCs in the early-stage MMD group show activation of the canonical NF-κB signaling pathway. We summarized and compared the similarities and differences between early-stage MMD patients and later-stage MMD patients. There is a potential role of circulating immune dysfunction and inflammatory responses in the onset and development of MMD.
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Affiliation(s)
- Chenglong Liu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
| | - Peicong Ge
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
| | - Bojian Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
| | - Liujia Chan
- Beijing Institute of Hepatology, Beijing YouAn Hospital, Capital Medical University, Beijing, 100069, China
| | - Yuheng Pang
- Beijing Institute of Hepatology, Beijing YouAn Hospital, Capital Medical University, Beijing, 100069, China
| | - Chuming Tao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
| | - Junsheng Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
| | - Qiheng He
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
| | - Wei Liu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
| | - Siqi Mou
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
| | - Zhiyao Zheng
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
| | - Zhikang Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
| | - Wei Sun
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
| | - Qian Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
| | - Rong Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
| | - Yan Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China
| | - Wenjing Wang
- Beijing Institute of Hepatology, Beijing YouAn Hospital, Capital Medical University, Beijing, 100069, China.
| | - Dong Zhang
- Department of Neurosurgery, Beijing Hospital, National Center of Gerontology, Beijing, 100730, China.
- Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, 100730, China.
| | - Jizong Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, China.
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, China.
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Dahiya R, Sutariya VB, Gupta SV, Pant K, Ali H, Alhadrawi M, Kaur K, Sharma A, Rajput P, Gupta G, Almujri SS, Chinni SV. Harnessing pyroptosis for lung cancer therapy: The impact of NLRP3 inflammasome activation. Pathol Res Pract 2024; 260:155444. [PMID: 38986361 DOI: 10.1016/j.prp.2024.155444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 06/22/2024] [Accepted: 06/28/2024] [Indexed: 07/12/2024]
Abstract
Lung cancer is still a global health challenge in terms of high incidence, morbidity, and mortality. Recent scientific studies have determined that pyroptosis, a highly inflammatory form of programmed cell death, can be identified as a potential lung cancer therapeutic target. The NLRP3 inflammasome acts as a critical mediator in this process and, upon activation, activates multiprotein complex formation as well as caspase-1 activation. This process, triggered by a release of pro-inflammatory cytokines, results in pyroptotic cell death. Also, the relationship between the NLRP3 inflammasome and lung cancer was justified by its influence on tumour growth or metastasis. The molecular pathways produce progenitive mediators and remake the tissue. Finally, targeting NLRP3 inflammasome for pyroptosis induction and inhibition of its activation appears to be a promising lung cancer treatment approach. This technique makes cancer treatment more promising and personalized. This review explores the role of NLRP3 inflammasome activation and its possibilities in lung cancer treatment.
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Affiliation(s)
- Rajiv Dahiya
- School of Pharmacy, Faculty of Medical Sciences, The University of the West Indies, St. Augustine, Trinidad & Tobago, West Indies
| | - Vijaykumar B Sutariya
- USF Health Taneja College of Pharmacy, University of South Florida, Tampa, FL 33612, USA
| | - Sheeba Varghese Gupta
- USF Health Taneja College of Pharmacy, University of South Florida, Tampa, FL 33612, USA
| | - Kumud Pant
- Graphic Era (Deemed to be University) Clement Town Dehradun, 248002, India; Graphic Era Hill University Clement Town Dehradun, 248002, India.
| | - Haider Ali
- Centre for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, India; Department of Pharmacology, Kyrgyz State Medical College, Bishkek, Kyrgyzstan
| | - Merwa Alhadrawi
- College of Technical Engineering, The Islamic University, Najaf, Iraq; College of Technical Engineering, The Islamic University of Al Diwaniyah, Al Diwaniyah, Iraq
| | - Kiranjeet Kaur
- Chandigarh Pharmacy College, Chandigarh Group of Colleges, Jhanjeri, Mohali, Punjab 140307, India
| | - Abhishek Sharma
- Department of Medicine, National Institute of Medical Sciences, NIMS University Rajasthan, Jaipur, India
| | - Pranchal Rajput
- School of Applied and Life Sciences, Division of Research and Innovation, Uttaranchal University, Dehradun, India
| | - Gaurav Gupta
- Centre for Research Impact & Outcome-Chitkara College of Pharmacy, Chitkara University, Punjab
| | - Salem Salman Almujri
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha, Asir 61421, Saudi Arabia
| | - Suresh V Chinni
- Department of Biochemistry, Faculty of Medicine, Bioscience, and Nursing, MAHSA University, Jenjarom, Selangor 42610, Malaysia
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Min L, Zhong F, Gu L, Lee K, He JC. Krüppel-like factor 2 is an endoprotective transcription factor in diabetic kidney disease. Am J Physiol Cell Physiol 2024; 327:C477-C486. [PMID: 38981608 DOI: 10.1152/ajpcell.00222.2024] [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: 04/11/2024] [Revised: 07/02/2024] [Accepted: 07/02/2024] [Indexed: 07/11/2024]
Abstract
Diabetic kidney disease (DKD) is a microvascular complication of diabetes, and glomerular endothelial cell (GEC) dysfunction is a key driver of DKD pathogenesis. Krüppel-like factor 2 (KLF2), a shear stress-induced transcription factor, is among the highly regulated genes in early DKD. In the kidney, KLF2 expression is mostly restricted to endothelial cells, but its expression is also found in immune cell subsets. KLF2 expression is upregulated in response to increased shear stress by the activation of mechanosensory receptors but suppressed by inflammatory cytokines, both of which characterize the early diabetic kidney milieu. KLF2 expression is reduced in progressive DKD and hypertensive nephropathy in humans and mice, likely due to high glucose and inflammatory cytokines such as TNF-α. However, KLF2 expression is increased in glomerular hyperfiltration-induced shear stress without metabolic dysregulation, such as in settings of unilateral nephrectomy. Lower KLF2 expression is associated with CKD progression in patients with unilateral nephrectomy, consistent with its endoprotective role. KLF2 confers endoprotection by inhibition of inflammation, thrombotic activation, and angiogenesis, and thus KLF2 is considered a protective factor for cardiovascular disease (CVD). Based on similar mechanisms, KLF2 also exhibits renoprotection, and its reduced expression in endothelial cells worsens glomerular injury and albuminuria in settings of diabetes or unilateral nephrectomy. Thus KLF2 confers endoprotective effects in both CVD and DKD, and its activators could potentially be developed as a novel class of drugs for cardiorenal protection in diabetic patients.
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Affiliation(s)
- Lulin Min
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- Department of Medicine/Nephrology, Icahn School of Medicine at Mount Sinai, New York, New York, United States
| | - Fang Zhong
- Department of Medicine/Nephrology, Icahn School of Medicine at Mount Sinai, New York, New York, United States
| | - Leyi Gu
- Department of Nephrology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Kyung Lee
- Department of Medicine/Nephrology, Icahn School of Medicine at Mount Sinai, New York, New York, United States
| | - John Cijiang He
- Department of Medicine/Nephrology, Icahn School of Medicine at Mount Sinai, New York, New York, United States
- Renal Section, James J. Peters Veterans Affair Medical Center, Bronx, New York, United States
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Abdala-Díaz RT, Casas-Arrojo V, Castro-Varela P, Riquelme C, Carrillo P, Medina MÁ, Cárdenas C, Becerra J, Pérez Manríquez C. Immunomodulatory, Antioxidant, and Potential Anticancer Activity of the Polysaccharides of the Fungus Fomitiporia chilensis. Molecules 2024; 29:3628. [PMID: 39125036 PMCID: PMC11314378 DOI: 10.3390/molecules29153628] [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: 06/17/2024] [Revised: 07/15/2024] [Accepted: 07/23/2024] [Indexed: 08/12/2024] Open
Abstract
Fomitiporia species have aroused the interest of numerous investigations that reveal their biological activity and medicinal potential. The present investigation shows the antioxidant, anticancer, and immunomodulatory activity of acidic polysaccharides obtained from the fungus Fomitiporia chilensis. The acidic polysaccharides were obtained for acidic precipitation with 2% O-N-cetylpyridinium bromide. Chemical analysis was performed using FT-IR and GC-MS methods. The antioxidant capacity of acidic polysaccharides from F. chilensis was evaluated by scavenging free radicals with an ABTS assay. Macrophage proliferation and cytokine production assays were used to determine the immunomodulatory capacity of the polysaccharides. Anti-tumor and cytotoxicity activity was evaluated with an MTT assay in the U-937, HTC-116, and HGF-1 cell lines. The effect of polysaccharides on the cell cycle of the HCT-116 cell line was determined for flow cytometry. Fourier Transform-infrared characterization revealed characteristic absorption peaks for polysaccharides, whereas the GC-MS analysis detected three peaks corresponding to D-galactose, galacturonic acid, and D-glucose. The secreted TNF-α concentration was increased when the cell was treated with 2 mg mL-1 polysaccharides, whereas the IL-6 concentration was increased with all of the evaluated polysaccharide concentrations. A cell cycle analysis of HTC-116 treated with polysaccharides evidenced that the acidic polysaccharides from F. chilensis induce an increase in the G0/G1 cell cycle phase, increasing the apoptotic cell percentage. Results from a proteomic analysis suggest that some of the molecular mechanisms involved in their antioxidant and cellular detoxifying effects and justify their traditional use in heart diseases. Proteomic data are available through ProteomeXchange under identifier PXD048361. The study on acidic polysaccharides from F. chilensis has unveiled their diverse biological activities, including antioxidant, anticancer, and immunomodulatory effects. These findings underscore the promising therapeutic applications of acidic polysaccharides from F. chilensis, warranting further pharmaceutical and medicinal research exploration.
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Affiliation(s)
- Roberto T. Abdala-Díaz
- Department of Ecology and Geology, Institute of Blue Biotechnology and Development (IBYDA), Malaga University, E-29071 Malaga, Spain; (R.T.A.-D.); (V.C.-A.)
| | - Virginia Casas-Arrojo
- Department of Ecology and Geology, Institute of Blue Biotechnology and Development (IBYDA), Malaga University, E-29071 Malaga, Spain; (R.T.A.-D.); (V.C.-A.)
| | - Pablo Castro-Varela
- FICOLAB Microalgal Research Group, Department of Botany, Faculty of Natural and Oceanographic Sciences, University of Concepción, Concepción PC 304000, Chile;
| | - Cristian Riquelme
- Mycology Laboratory, Institute of Biochemistry and Microbiology, Universidad Austral de Chile, Isla Teja, PO 567, Valdivia PC 5049000, Chile;
| | - Paloma Carrillo
- Department of Molecular Biology and Biochemistry, Faculty of Sciences, University of Málaga, Andalucía Tech, E-29071 Málaga, Spain; (P.C.); (M.Á.M.); (C.C.)
- Malaga Biomedical Research Institute and Nanomedicine Platform (IBIMA PlataformaBIONAND), C/Severo Ochoa, 35, E-29590 Málaga, Spain
| | - Miguel Ángel Medina
- Department of Molecular Biology and Biochemistry, Faculty of Sciences, University of Málaga, Andalucía Tech, E-29071 Málaga, Spain; (P.C.); (M.Á.M.); (C.C.)
- Malaga Biomedical Research Institute and Nanomedicine Platform (IBIMA PlataformaBIONAND), C/Severo Ochoa, 35, E-29590 Málaga, Spain
- Network Biomedical Research Center for Rare Diseases (CIBERER), U741, E-28029 Málaga, Spain
| | - Casimiro Cárdenas
- Department of Molecular Biology and Biochemistry, Faculty of Sciences, University of Málaga, Andalucía Tech, E-29071 Málaga, Spain; (P.C.); (M.Á.M.); (C.C.)
- Research Support Central Services (SCAI) of the University of Málaga, E-29071 Málaga, Spain
| | - José Becerra
- Laboratory of Chemistry of Natural Products, Department of Botany, Faculty of Natural and Oceanographic Sciences, University of Concepción, Concepción PC 304000, Chile;
- Technological Development Unit, University of Concepción, Concepción PC 304000, Chile
| | - Claudia Pérez Manríquez
- Laboratory of Chemistry of Natural Products, Department of Botany, Faculty of Natural and Oceanographic Sciences, University of Concepción, Concepción PC 304000, Chile;
- Technological Development Unit, University of Concepción, Concepción PC 304000, Chile
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Jayab NA, Abed A, Talaat IM, Hamoudi R. The molecular mechanism of NF-κB dysregulation across different subtypes of renal cell carcinoma. J Adv Res 2024:S2090-1232(24)00314-X. [PMID: 39094893 DOI: 10.1016/j.jare.2024.07.030] [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: 04/17/2024] [Revised: 06/27/2024] [Accepted: 07/29/2024] [Indexed: 08/04/2024] Open
Abstract
BACKGROUND The nuclear factor kappa B (NF-κB) is a critical pathway that regulates various cellular functions, including immune response, proliferation, growth, and apoptosis. Furthermore, this pathway is tightly regulated to ensure stability in the presence of immunogenic triggers or genotoxic stimuli. The lack of control of the NF-κB pathway can lead to the initiation of different diseases, mainly autoimmune diseases and cancer, including Renal cell carcinoma (RCC). RCC is the most common type of kidney cancer and is characterized by complex genetic composition and elusive molecular mechanisms. AIM OF REVIEW The current review summarizes the mechanism of NF-κB dysregulation in different subtypes of RCC and its impact on pathogenesis. KEY SCIENTIFIC CONCEPT OF REVIEW This review highlights the prominent role of NF-κB in RCC development and progression by driving the expression of multiple genes and interplaying with different pathways, including the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt) pathway. In silico analysis of RCC cohorts and molecular studies have revealed that multiple NF-κB members and target genes are dysregulated. The dysregulation includes receptors such as TLR2, signal-transmitting members including RelA, and target genes, for instance, HIF-1α. The lack of effective regulatory mechanisms results in a constitutively active NF-κB pathway, which promotes cancer growth, migration, and survival. In this review, we comprehensively summarize the role of dysregulated NF-κB-related genes in the most common subtypes of RCC, including clear cell RCC (ccRCC), chromophobe RCC (chRCC), and papillary RCC (PRCC).
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Affiliation(s)
- Nour Abu Jayab
- Research Institute for Medical and Health Sciences, University of Sharjah, 27272 Sharjah, United Arab Emirates; Department of Clinical Sciences, College of Medicine, University of Sharjah, 27272 Sharjah, United Arab Emirates
| | - Alaa Abed
- Research Institute for Medical and Health Sciences, University of Sharjah, 27272 Sharjah, United Arab Emirates; ASPIRE Precision Medicine Research Institute Abu Dhabi, University of Sharjah, 27272 Sharjah, United Arab Emirates
| | - Iman M Talaat
- Research Institute for Medical and Health Sciences, University of Sharjah, 27272 Sharjah, United Arab Emirates; Department of Clinical Sciences, College of Medicine, University of Sharjah, 27272 Sharjah, United Arab Emirates; Pathology Department, Faculty of Medicine, Alexandria University, 21131 Alexandria, Egypt.
| | - Rifat Hamoudi
- Research Institute for Medical and Health Sciences, University of Sharjah, 27272 Sharjah, United Arab Emirates; Center of Excellence for Precision Medicine, Research Institute of Medical and Health Sciences, University of Sharjah, 27272 Sharjah, United Arab Emirates; Department of Clinical Sciences, College of Medicine, University of Sharjah, 27272 Sharjah, United Arab Emirates; BIMAI-Lab, Biomedically Informed Artificial Intelligence Laboratory, University of Sharjah, 27272 Sharjah, United Arab Emirates; Division of Surgery and Interventional Science, University College London, London, United Kingdom; ASPIRE Precision Medicine Research Institute Abu Dhabi, University of Sharjah, 27272 Sharjah, United Arab Emirates.
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Mishra S, Welch N, Singh SS, Singh KD, Bellar A, Kumar A, Deutz LN, Hanlon MD, Kant S, Dastidar S, Patel H, Agrawal V, Attaway AH, Musich R, Stark GR, Tedesco FS, Truskey GA, Weiner ID, Karnik SS, Dasarathy S. Ammonia transporter RhBG initiates downstream signaling and functional responses by activating NFκB. Proc Natl Acad Sci U S A 2024; 121:e2314760121. [PMID: 39052834 PMCID: PMC11294993 DOI: 10.1073/pnas.2314760121] [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: 08/30/2023] [Accepted: 06/19/2024] [Indexed: 07/27/2024] Open
Abstract
Transceptors, solute transporters that facilitate intracellular entry of molecules and also initiate intracellular signaling events, have been primarily studied in lower-order species. Ammonia, a cytotoxic endogenous metabolite, is converted to urea in hepatocytes for urinary excretion in mammals. During hyperammonemia, when hepatic metabolism is impaired, nonureagenic ammonia disposal occurs primarily in skeletal muscle. Increased ammonia uptake in skeletal muscle is mediated by a membrane-bound, 12 transmembrane domain solute transporter, Rhesus blood group-associated B glycoprotein (RhBG). We show that in addition to its transport function, RhBG interacts with myeloid differentiation primary response-88 (MyD88) to initiate an intracellular signaling cascade that culminates in activation of NFκB. We also show that ammonia-induced MyD88 signaling is independent of the canonical toll-like receptor-initiated mechanism of MyD88-dependent NFκB activation. In silico, in vitro, and in situ experiments show that the conserved cytosolic J-domain of the RhBG protein interacts with the Toll-interleukin-1 receptor (TIR) domain of MyD88. In skeletal muscle from human patients, human-induced pluripotent stem cell-derived myotubes, and myobundles show an interaction of RhBG-MyD88 during hyperammonemia. Using complementary experimental and multiomics analyses in murine myotubes and mice with muscle-specific RhBG or MyD88 deletion, we show that the RhBG-MyD88 interaction is essential for the activation of NFkB but not ammonia transport. Our studies show a paradigm of substrate-dependent regulation of transceptor function with the potential for modulation of cellular responses in mammalian systems by decoupling transport and signaling functions of transceptors.
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Affiliation(s)
- Saurabh Mishra
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland, OH44195
| | - Nicole Welch
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland, OH44195
- Gastroenterology and Hepatology, Lerner Research Institute, Cleveland, OH44195
| | - Shashi Shekhar Singh
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland, OH44195
| | | | - Annette Bellar
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland, OH44195
| | - Avinash Kumar
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland, OH44195
| | - Lars N. Deutz
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland, OH44195
| | - Maxmillian D. Hanlon
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland, OH44195
| | - Sashi Kant
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland, OH44195
| | - Sumitava Dastidar
- Department of Cell and Developmental Biology, University College London & The Francis Crick Institute, LondonWC1E6DE, UK
| | - Hailee Patel
- Duke Biomedical Engineering, Duke University, Durham, NC27708
| | - Vandana Agrawal
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland, OH44195
| | - Amy H. Attaway
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland, OH44195
- Pulmonary Medicine, Lerner Research Institute, Cleveland, OH44195
| | - Ryan Musich
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland, OH44195
| | - George R. Stark
- Cancer Biology, Lerner Research Institute, Cleveland, OH44195
| | - Francesco Saverio Tedesco
- Department of Cell and Developmental Biology, University College London & The Francis Crick Institute, LondonWC1E6DE, UK
| | | | - I. David Weiner
- Division of Nephrology Hypertension, and Renal Transplantation, University of Florida, Gainesville, FL32610
- Nephrology and Hypertension Section, Gainesville, FL32610
| | - Sadashiva S. Karnik
- Cardiovascular and Metabolic Diseases, Lerner Research Institute, Cleveland, OH44195
| | - Srinivasan Dasarathy
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland, OH44195
- Gastroenterology and Hepatology, Lerner Research Institute, Cleveland, OH44195
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Zhang J. Immune responses in COVID-19 patients: Insights into cytokine storms and adaptive immunity kinetics. Heliyon 2024; 10:e34577. [PMID: 39149061 PMCID: PMC11325674 DOI: 10.1016/j.heliyon.2024.e34577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 07/11/2024] [Accepted: 07/11/2024] [Indexed: 08/17/2024] Open
Abstract
SARS-CoV-2 infection can trigger cytokine storm in some patients, which characterized by an excessive production of cytokines and chemical mediators. This hyperactive immune response may cause significant tissue damage and multiple organ failure (MOF). The severity of COVID-19 correlates with the intensity of cytokine storm, involving elements such as IFN, NF-κB, IL-6, HMGB1, etc. It is imperative to rapidly engage adaptive immunity to effectively control the disease progression. CD4+ T cells facilitate an immune response by improving B cells in the production of neutralizing antibodies and activating CD8+ T cells, which are instrumental in eradicating virus-infected cells. Meanwhile, antibodies from B cells can neutralize virus, obstructing further infection of host cells. In individuals who have recovered from the disease, virus-specific antibodies and memory T cells were observed, which could confer a level of protection, reducing the likelihood of re-infection or attenuating severity. This paper discussed the roles of macrophages, IFN, IL-6 and HMGB1 in cytokine release syndrome (CRS), the intricacies of adaptive immunity, and the persistence of immune memory, all of which are critical for the prevention and therapeutic strategies against COVID-19.
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Affiliation(s)
- Junguo Zhang
- Pulmonology Department, Fengdu General Hospital, Chongqing, 408200, China
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Yuan J, Narasimhachar BC, Ravish A, Yang L, Zhang H, Wang Q, Li Z, Huang J, Wang B, Wang G, Kumar Harish K, Chinnathambi A, Govindasamy C, Madegowda M, Basappa B. Discovery of oxazine-linked pyrimidine as an inhibitor of breast cancer growth and metastasis by abrogating NF-κB activation. Front Oncol 2024; 14:1390992. [PMID: 39135991 PMCID: PMC11317417 DOI: 10.3389/fonc.2024.1390992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Accepted: 07/15/2024] [Indexed: 08/15/2024] Open
Abstract
Introduction Nuclear factor kappa (NF-κB) plays a key role in cancer cell proliferation; thus, small molecule inhibitors of NF-κB activity can effectively inhibit breast cancer (BC) progression. We have previously reported oxazine and piperazine-linked pyrimidines as novel anti-cancer agents that can suppress NF-κB activation in BC cells. Moreover, the TRX-01 compound, an oxazine-linked pyrimidine, inhibited MCF-7 cells at a concentration of 9.17 µM in the Alamar Blue assay. Methods This work involved the analysis of frontier molecular orbitals, HOMO-LUMO interactions, and molecular electrostatic potential for the TRX-01 structure. Additionally, the TRX-01 compound was studied for cytotoxicity, and migration as well as invasion assays were performed on BC cells. Results Finally, TRX-01 blocked the translocation of NF-κB from the cytoplasm to the nucleus in MCF-7 cells and reduced NF-κB and IκBα levels in a dose-dependent manner. It also suppressed migratory and invasive properties of BC cells. Conclusion Overall, the data indicates that TRX-01 can function as a novel blocker of BC growth and metastasis by targeting NF-κB activation.
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Affiliation(s)
- Jie Yuan
- Department of Breast, Thyroid and Vascular Surgery, Hubei Provincial Clinical Research Center for Umbilical Cord Blood Hematopoietic Stem Cells, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Bhanuprakash C. Narasimhachar
- Department of Chemistry, Yuvaraja’s College, University of Mysore, Mysuru, Karnataka, India
- Laboratory of Chemical Biology, Department of Studies in Organic Chemistry, University of Mysore, Mysore, Karnataka, India
| | - Akshay Ravish
- Laboratory of Chemical Biology, Department of Studies in Organic Chemistry, University of Mysore, Mysore, Karnataka, India
| | - Li Yang
- Department of Clinical Laboratory Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Hua Zhang
- Department of Breast, Thyroid and Vascular Surgery, Hubei Provincial Clinical Research Center for Umbilical Cord Blood Hematopoietic Stem Cells, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Qun Wang
- Department of Breast, Thyroid and Vascular Surgery, Hubei Provincial Clinical Research Center for Umbilical Cord Blood Hematopoietic Stem Cells, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Zhi Li
- Department of Breast, Thyroid and Vascular Surgery, Hubei Provincial Clinical Research Center for Umbilical Cord Blood Hematopoietic Stem Cells, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Jun Huang
- Department of Breast, Thyroid and Vascular Surgery, Hubei Provincial Clinical Research Center for Umbilical Cord Blood Hematopoietic Stem Cells, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Bei Wang
- Department of Breast, Thyroid and Vascular Surgery, Hubei Provincial Clinical Research Center for Umbilical Cord Blood Hematopoietic Stem Cells, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Geng Wang
- Department of Breast, Thyroid and Vascular Surgery, Hubei Provincial Clinical Research Center for Umbilical Cord Blood Hematopoietic Stem Cells, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | | | - Arunachalam Chinnathambi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Chandramohan Govindasamy
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
| | | | - Basappa Basappa
- Laboratory of Chemical Biology, Department of Studies in Organic Chemistry, University of Mysore, Mysore, Karnataka, India
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Bisanti L, La Corte C, Dara M, Bertini F, Vizioli J, Parisi MG, Cammarata M, Parrinello D. The Interplay of TLR-NFκB Signalling Pathway and Functional Immune-Related Enzymes in the Inflammatory Response of Ciona robusta. Animals (Basel) 2024; 14:2169. [PMID: 39123695 PMCID: PMC11310991 DOI: 10.3390/ani14152169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Revised: 07/23/2024] [Accepted: 07/24/2024] [Indexed: 08/12/2024] Open
Abstract
The close phylogenetic relationship between ascidians (Tunicata) and vertebrates makes them a powerful model for studying the innate immune system. To better understand the nature and dynamics of immune responses and the mechanisms through which bacterial infections are detected and translated into inflammation in Ciona robusta, we applied an approach combining in vivo lipopolysaccharide (LPS) stimulation, immune-labelling techniques and functional enzymatic analyses. The immunohistochemistry showed that Toll-like receptor 4 (TLR4) and nuclear factor kappa B (NFκB) were expressed during the inflammatory pharynx response 4 h post-LPS, with the formation of nodules in pharynx vessel lumen. Also, the endothelium vessels were involved in the inflammatory response. Observations of histological sections from naive and buffer-inoculated ascidians confirmed an immuno-positive response. Enzyme immune parameters-which included the activity of phenoloxidase, glutathione peroxidase, lysozyme, alkaline phosphatase and esterase-showed up-modulation 4 h after LPS injection, confirming their participation during ascidian inflammatory response. These findings provide new insights into the mechanisms underlying the LPS-induced C. robusta response and suggest that a broad innate immune mechanism, as in vertebrates, is involved in the regulation of inflammatory responses. Further findings in this direction are needed to cover knowledge gaps regarding the organized set of molecular and cellular networks involved in universal immune interactions with pathogens.
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Affiliation(s)
- Luca Bisanti
- Marine Immunobiology Laboratory, Department of Earth and Marine Sciences, University of Palermo, 90128 Palermo, Italy; (L.B.); (C.L.C.); (F.B.)
- National Biodiversity Future Center (NBFC), 90133 Palermo, Italy
| | - Claudia La Corte
- Marine Immunobiology Laboratory, Department of Earth and Marine Sciences, University of Palermo, 90128 Palermo, Italy; (L.B.); (C.L.C.); (F.B.)
- National Biodiversity Future Center (NBFC), 90133 Palermo, Italy
| | - Mariano Dara
- Marine Immunobiology Laboratory, Department of Earth and Marine Sciences, University of Palermo, 90128 Palermo, Italy; (L.B.); (C.L.C.); (F.B.)
- National Biodiversity Future Center (NBFC), 90133 Palermo, Italy
| | - Federica Bertini
- Marine Immunobiology Laboratory, Department of Earth and Marine Sciences, University of Palermo, 90128 Palermo, Italy; (L.B.); (C.L.C.); (F.B.)
- National Biodiversity Future Center (NBFC), 90133 Palermo, Italy
| | - Jacopo Vizioli
- Laboratoire Protéomique, Réponse Inflammatoire et Spectrométrie de Masse (Inserm U1192), Département de Biologie, Université de Lille, F-59000 Lille, France
| | - Maria Giovanna Parisi
- Marine Immunobiology Laboratory, Department of Earth and Marine Sciences, University of Palermo, 90128 Palermo, Italy; (L.B.); (C.L.C.); (F.B.)
- National Biodiversity Future Center (NBFC), 90133 Palermo, Italy
| | - Matteo Cammarata
- Marine Immunobiology Laboratory, Department of Earth and Marine Sciences, University of Palermo, 90128 Palermo, Italy; (L.B.); (C.L.C.); (F.B.)
- National Biodiversity Future Center (NBFC), 90133 Palermo, Italy
| | - Daniela Parrinello
- Marine Immunobiology Laboratory, Department of Earth and Marine Sciences, University of Palermo, 90128 Palermo, Italy; (L.B.); (C.L.C.); (F.B.)
- National Biodiversity Future Center (NBFC), 90133 Palermo, Italy
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Chen X, Jiang YH, Fei X, Wang M, Liu A, Li X, Jiang Z. Herbacetin Inhibits Asthma Development by Blocking the SGK1/NF-κB Signaling Pathway. J Asthma Allergy 2024; 17:703-716. [PMID: 39071161 PMCID: PMC11278148 DOI: 10.2147/jaa.s468689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 07/09/2024] [Indexed: 07/30/2024] Open
Abstract
Background Asthma severely interferes with people's lives through coughing, wheezing and inflammation of the lungs. Herbacetin is a class of natural compounds that inhibit the development of inflammation. However, whether Herbacetin inhibits asthma has not been definitively studied. Methods Lipopolysaccharides (LPS)-induced lung epithelial (BASE-2B) cells injury model was established, and then the relief of damaged BASE-2B cells with different concentrations of Herbacetin was examined. The cell counting kit (CCK8) was used to detect the effect of Herbacetin on the proliferation ability in ovalbumin (OVA)-induced asthma mice model, and Western Blot and flow cytometry were used to detect the effect of Herbacetin on the apoptosis in OVA-induced asthma mice model. Additionally, pulmonary pathology was detected by HE and Masson staining, and serum inflammatory factors were detected by alveolar lavage fluid. Results Herbacetin reduces BESA-2B cells induced by LPS level of inflammation, and reactive oxygen species (ROS) generation, inhibits cell apoptosis, promotes cell proliferation, OVA-induced mice lung histopathology test HE staining, serum inflammatory factors show the same results. Western Blot shows that Herbacetin regulates the expression of Caspase-3, Bax, and Bcl-2. SGK1 overexpression increased the rate of apoptosis, and Herbacetin reversed this phenomenon. By silencing the expression of SGK1, it was found that Herbacetin was an inhibitor of SGK1, which could inhibit the NF-κB/p-P65 pathway in asthmatic airway inflammation. Conclusion Herbacetin reduces pro-inflammatory cytokine levels by inhibiting the SGK1/NF-κB pathway. Our data suggest that Herbacetin has a significant anti-inflammatory effect on asthma and can be used as a potential therapeutic agent.
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Affiliation(s)
- Xiufeng Chen
- Department of Pediatrics, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Yong hong Jiang
- Department of Pediatrics, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Xiaoqin Fei
- Department of Pediatrics, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Mingjing Wang
- Department of Pediatrics, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Anqi Liu
- Department of Pediatrics, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Xuejun Li
- Department of Pediatrics, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Zhiyan Jiang
- Department of Pediatrics, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
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Kravitz A, Liao M, Morota G, Tyler R, Cockrum R, Manohar BM, Ronald BSM, Collins MT, Sriranganathan N. Retrospective Single Nucleotide Polymorphism Analysis of Host Resistance and Susceptibility to Ovine Johne's Disease Using Restored FFPE DNA. Int J Mol Sci 2024; 25:7748. [PMID: 39062990 PMCID: PMC11276633 DOI: 10.3390/ijms25147748] [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: 06/12/2024] [Revised: 06/26/2024] [Accepted: 06/28/2024] [Indexed: 07/28/2024] Open
Abstract
Johne's disease (JD), also known as paratuberculosis, is a chronic, untreatable gastroenteritis of ruminants caused by Mycobacterium avium subsp. paratuberculosis (MAP) infection. Evidence for host genetic resistance to disease progression exists, although it is limited due to the extended incubation period (years) and diagnostic challenges. To overcome this, previously restored formalin-fixed paraffin embedded tissue (FFPE) DNA from archived FFPE tissue cassettes was utilized for a novel retrospective case-control genome-wide association study (GWAS) on ovine JD. Samples from known MAP-infected flocks with ante- and postmortem diagnostic data were used. Cases (N = 9) had evidence of tissue infection, compared to controls (N = 25) without evidence of tissue infection despite positive antemortem diagnostics. A genome-wide efficient mixed model analysis (GEMMA) to conduct a GWAS using restored FFPE DNA SNP results from the Illumina Ovine SNP50 Bead Chip, identified 10 SNPs reaching genome-wide significance of p < 1 × 10-6 on chromosomes 1, 3, 4, 24, and 26. Pathway analysis using PANTHER and the Kyoto Encyclopedia of Genes and Genomes (KEGG) was completed on 45 genes found within 1 Mb of significant SNPs. Our work provides a framework for the novel use of archived FFPE tissues for animal genetic studies in complex diseases and further evidence for a genetic association in JD.
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Affiliation(s)
- Amanda Kravitz
- Center for One Health Research, Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Mingsi Liao
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Gota Morota
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Ron Tyler
- Center for One Health Research, Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - Rebecca Cockrum
- Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
| | - B. Murali Manohar
- Department of Veterinary Pathology, Tamilnadu Veterinary and Animal Sciences University, Madhavaram Milk Colony, Chennai 600051, Tamil Nadu India, India
| | - B. Samuel Masilamoni Ronald
- Department of Veterinary Pathology, Tamilnadu Veterinary and Animal Sciences University, Madhavaram Milk Colony, Chennai 600051, Tamil Nadu India, India
| | - Michael T. Collins
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Nammalwar Sriranganathan
- Center for One Health Research, Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA
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Zhao C, Sun L, Zhang Y, Shu X, Hu Y, Chen D, Zhang Z, Xia S, Yang H, Bao X, Li J, Xu Y. Thymol improves ischemic brain injury by inhibiting microglia-mediated neuroinflammation. Brain Res Bull 2024; 215:111029. [PMID: 39009094 DOI: 10.1016/j.brainresbull.2024.111029] [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: 01/18/2024] [Revised: 06/20/2024] [Accepted: 07/04/2024] [Indexed: 07/17/2024]
Abstract
BACKGROUND Microglia-mediated inflammation is a critical factor in the progression of ischemic stroke. Consequently, mitigating excessive microglial activation represents a potential therapeutic strategy for ischemic injury. Thymol, a monophenol derived from plant essential oils, exhibits diverse beneficial biological activities, including anti-inflammatory and antioxidant properties, with demonstrated protective effects in various disease models. However, its specific effects on ischemic stroke and microglial inflammation remain unexplored. METHODS Rodent transient middle cerebral artery occlusion (tMCAO) model was established to simulate ischemic stroke. TTC staining, modified neurological function score (mNSS), and behavioral tests were used to assess the severity of neurological damage. Then immunofluorescence staining and cytoskeleton analysis were used to determine activation of microglia. Lipopolysaccharide (LPS) was utilized to induce the inflammatory response of primary microglia in vitro. Quantitative real-time polymerase chain reaction (qRT-PCR), western blot, and enzyme-linked immunosorbent assay (ELISA) were performed to exam the expression of inflammatory cytokines. And western blot was used to investigate the mechanism of the anti-inflammatory effect of thymol. RESULTS In this study, we found that thymol treatment could ameliorate post-stroke neurological impairment and reduce infarct volume by mitigating microglial activation and pro-inflammatory response (IL-1β, IL-6, and TNF-α). Mechanically, thymol could inhibit the phosphorylation of phosphatidylinositol-3-kinase (PI3K), sink serine/threonine kinase (Akt), and mammalian target of rapamycin (mTOR), thereby suppressing the activation of nuclear factor-κB (NF-κB). CONCLUSIONS Our study demonstrated that thymol could reduce the microglial inflammation by targeting PI3K/Akt/mTOR/NF-κB signaling pathway, ultimately alleviating ischemic brain injury. These findings suggest that thymol is a promising candidate as a neuroprotective agent against ischemic stroke.
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Affiliation(s)
- Chenchen Zhao
- Department of Neurology, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210008, China; Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China
| | - Liang Sun
- Department of Neurology, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210008, China; Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China
| | - Yuxin Zhang
- Department of Neurology, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210008, China; Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China
| | - Xin Shu
- Department of Neurology, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210008, China; Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China
| | - Yujie Hu
- Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China; Department of Neurology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical Diseases, Nanjing University, Nanjing 210008, China
| | - Duo Chen
- Department of Neurology, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210008, China; Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China
| | - Zhi Zhang
- Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China; Department of Neurology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical Diseases, Nanjing University, Nanjing 210008, China
| | - Shengnan Xia
- Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China; Department of Neurology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical Diseases, Nanjing University, Nanjing 210008, China
| | - Haiyan Yang
- Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China
| | - Xinyu Bao
- Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China; Department of Neurology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical Diseases, Nanjing University, Nanjing 210008, China
| | - Jingwei Li
- Department of Neurology, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210008, China; Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China
| | - Yun Xu
- Department of Neurology, Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210008, China; Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China; Department of Neurology, Nanjing Drum Tower Hospital, State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical Diseases, Nanjing University, Nanjing 210008, China; Nanjing Neurology Medical Center, Nanjing 210008, China; Jiangsu Key Laboratory for Molecular Medicine, Medical School of Nanjing University, Nanjing 210008, China.
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Mog BJ, Marcou N, DiNapoli SR, Pearlman AH, Nichakawade TD, Hwang MS, Douglass J, Hsiue EHC, Glavaris S, Wright KM, Konig MF, Paul S, Wyhs N, Ge J, Miller MS, Azurmendi P, Watson E, Pardoll DM, Gabelli SB, Bettegowda C, Papadopoulos N, Kinzler KW, Vogelstein B, Zhou S. Preclinical studies show that Co-STARs combine the advantages of chimeric antigen and T cell receptors for the treatment of tumors with low antigen densities. Sci Transl Med 2024; 16:eadg7123. [PMID: 38985855 DOI: 10.1126/scitranslmed.adg7123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 04/01/2024] [Accepted: 06/13/2024] [Indexed: 07/12/2024]
Abstract
Two types of engineered T cells have been successfully used to treat patients with cancer, one with an antigen recognition domain derived from antibodies [chimeric antigen receptors (CARs)] and the other derived from T cell receptors (TCRs). CARs use high-affinity antigen-binding domains and costimulatory domains to induce T cell activation but can only react against target cells with relatively high amounts of antigen. TCRs have a much lower affinity for their antigens but can react against target cells displaying only a few antigen molecules. Here, we describe a new type of receptor, called a Co-STAR (for costimulatory synthetic TCR and antigen receptor), that combines aspects of both CARs and TCRs. In Co-STARs, the antigen-recognizing components of TCRs are replaced by high-affinity antibody fragments, and costimulation is provided by two modules that drive NF-κB signaling (MyD88 and CD40). Using a TCR-mimic antibody fragment that targets a recurrent p53 neoantigen presented in a common human leukocyte antigen (HLA) allele, we demonstrate that T cells equipped with Co-STARs can kill cancer cells bearing low densities of antigen better than T cells engineered with conventional CARs and patient-derived TCRs in vitro. In mouse models, we show that Co-STARs mediate more robust T cell expansion and more durable tumor regressions than TCRs similarly modified with MyD88 and CD40 costimulation. Our data suggest that Co-STARs may have utility for other peptide-HLA antigens in cancer and other targets where antigen density may limit the efficacy of engineered T cells.
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Affiliation(s)
- Brian J Mog
- Ludwig Center, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
- Lustgarten Pancreatic Cancer Research Laboratory, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Nikita Marcou
- Ludwig Center, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
- Lustgarten Pancreatic Cancer Research Laboratory, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Sarah R DiNapoli
- Ludwig Center, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
- Lustgarten Pancreatic Cancer Research Laboratory, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Alexander H Pearlman
- Ludwig Center, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
- Lustgarten Pancreatic Cancer Research Laboratory, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Tushar D Nichakawade
- Ludwig Center, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
- Lustgarten Pancreatic Cancer Research Laboratory, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Institute for NanoBioTechnology, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA
| | - Michael S Hwang
- Ludwig Center, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
- Lustgarten Pancreatic Cancer Research Laboratory, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Jacqueline Douglass
- Ludwig Center, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
- Lustgarten Pancreatic Cancer Research Laboratory, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Emily Han-Chung Hsiue
- Ludwig Center, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
- Lustgarten Pancreatic Cancer Research Laboratory, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Stephanie Glavaris
- Ludwig Center, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
- Lustgarten Pancreatic Cancer Research Laboratory, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Katharine M Wright
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
- Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD 21287, USA
| | - Maximilian F Konig
- Ludwig Center, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
- Lustgarten Pancreatic Cancer Research Laboratory, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Division of Rheumatology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA
| | - Suman Paul
- Ludwig Center, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Nicolas Wyhs
- Ludwig Center, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Jiaxin Ge
- Ludwig Center, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
- Lustgarten Pancreatic Cancer Research Laboratory, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Michelle S Miller
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
- Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD 21287, USA
| | - P Azurmendi
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
- Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD 21287, USA
| | - Evangeline Watson
- Ludwig Center, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
- Lustgarten Pancreatic Cancer Research Laboratory, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Drew M Pardoll
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD 21287, USA
| | - Sandra B Gabelli
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Department of Biophysics and Biophysical Chemistry, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD 21287, USA
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Chetan Bettegowda
- Ludwig Center, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Lustgarten Pancreatic Cancer Research Laboratory, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Nickolas Papadopoulos
- Ludwig Center, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Lustgarten Pancreatic Cancer Research Laboratory, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Kenneth W Kinzler
- Ludwig Center, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Lustgarten Pancreatic Cancer Research Laboratory, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD 21287, USA
| | - Bert Vogelstein
- Ludwig Center, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
- Lustgarten Pancreatic Cancer Research Laboratory, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD 21287, USA
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Shibin Zhou
- Ludwig Center, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Lustgarten Pancreatic Cancer Research Laboratory, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
- Bloomberg~Kimmel Institute for Cancer Immunotherapy, Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD 21287, USA
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Clevenger MH, Wei C, Karami AL, Tsikretsis LE, Carlson DA, Pandolfino JE, Gonsalves N, Winter DR, Whelan KA, Tétreault MP. Esophageal epithelial Ikkβ deletion promotes eosinophilic esophagitis in experimental allergy mouse model. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.05.602313. [PMID: 39026724 PMCID: PMC11257468 DOI: 10.1101/2024.07.05.602313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Background Eosinophilic esophagitis (EoE) is a chronic T helper type 2 (Th2)-associated inflammatory disorder triggered by food allergens, resulting in esophageal dysfunction through edema, fibrosis, and tissue remodeling. The role of epithelial remodeling in EoE pathogenesis is critical but not fully understood. Objective To investigate the role of epithelial IKKβ/NFκB signaling in EoE pathogenesis using a mouse model with conditional Ikk β knockout in esophageal epithelial cells ( Ikk β EEC-KO ). Methods EoE was induced in Ikkβ EEC-KO mice through skin sensitization with MC903/Ovalbumin (OVA) followed by intraesophageal OVA challenge. Histological and transcriptional analyses were performed to assess EoE features. Single-cell RNA sequencing (scRNA-seq) was used to profile esophageal mucosal cell populations and gene expression changes. Results Ikkβ EEC-KO /EoE mice exhibited hallmark EoE features, including eosinophil infiltration, intraepithelial eosinophils, microabscesses, basal cell hyperplasia, and lamina propria remodeling. RNA-seq revealed significant alterations in IKKβ/NFκB signaling pathways, with decreased expression of RELA and increased expression of IKKβ negative regulators. scRNA- seq analyses identified disrupted epithelial differentiation and barrier integrity, alongside increased type 2 immune responses and peptidase activity. Conclusion Our study demonstrates that loss of epithelial IKKβ signaling exacerbates EoE pathogenesis, highlighting the critical role of this pathway in maintaining epithelial homeostasis and preventing allergic inflammation. The Ikkβ EEC-KO /EoE mouse model closely mirrors human EoE, providing a valuable tool for investigating disease mechanisms and therapeutic targets. This model can facilitate the development of strategies to prevent chronic inflammation and tissue remodeling in EoE. Key Messages Critical Role of Epithelial IKKβ/NFκB Signaling: Loss of this signaling exacerbates EoE, causing eosinophil infiltration, basal cell hyperplasia, and tissue remodeling, highlighting its importance in esophageal health.Molecular Insights and Therapeutic Targets: scRNA-seq identified disrupted epithelial differentiation, barrier integrity, and enhanced type 2 immune responses, suggesting potential therapeutic targets for EoE. Relevance of the Ikkβ EEC-KO /EoE Mouse Model: This model replicates human EoE features, making it a valuable tool for studying EoE mechanisms and testing treatments, which can drive the development of effective therapies. Capsule Summary This study reveals the crucial role of epithelial IKKβ/NFκB signaling in EoE, providing insights into disease mechanisms and potential therapeutic targets, highly relevant for advancing clinical management of EoE.
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