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Chen L, Wang L, Shao Y, Guo X, Li Y, Guo J, Tan F, Shen H, Hu Y, Huang L, Lu Y, Fan Y. Identification and genetic validation of leukemia inhibitory factor super-enhancers in acute respiratory distress syndrome and lung cancer. Cell Biochem Funct 2024; 42:e4031. [PMID: 38760985 DOI: 10.1002/cbf.4031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 04/03/2024] [Accepted: 04/28/2024] [Indexed: 05/20/2024]
Abstract
Super-enhancers play prominent roles in driving robust pathological gene expression, but they are hidden in human genome at noncoding regions, making them difficult to explore. Leukemia inhibitory factor (LIF) is a multifunctional cytokine crucially involved in acute respiratory distress syndrome (ARDS) and lung cancer progression. However, the mechanisms governing LIF regulation in disease contexts remain largely unexplored. In this study, we observed elevated levels of LIF in the bronchoalveolar lavage fluid (BALF) of patients with sepsis-related ARDS compared to those with nonsepsis-related ARDS. Furthermore, both basal and LPS-induced LIF expression were under the control of super-enhancers. Through analysis of H3K27Ac ChIP-seq data, we pinpointed three potential super-enhancers (LIF-SE1, LIF-SE2, and LIF-SE3) located proximal to the LIF gene in cells. Notably, genetic deletion of any of these three super-enhancers using CRISPR-Cas9 technology led to a significant reduction in LIF expression. Moreover, in cells lacking these super-enhancers, both cell growth and invasion capabilities were substantially impaired. Our findings highlight the critical role of three specific super-enhancers in regulating LIF expression and offer new insights into the transcriptional regulation of LIF in ARDS and lung cancer.
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Affiliation(s)
- Liuting Chen
- Department of Pathogenic Biology, School of Medicine, Nantong University, Nantong, China
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Key Laboratory of Industrial Biotechnology, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, School of Life Sciences, Hubei University, Wuhan, China
| | - Lu Wang
- The Intensive Care Unit, Affiliated Hospital of Nantong University, Nantong, China
| | - Yeling Shao
- The Intensive Care Unit, Affiliated Hospital of Nantong University, Nantong, China
| | - Xiaohong Guo
- Department of Pathogenic Biology, School of Medicine, Nantong University, Nantong, China
| | - Yanli Li
- Department of Pathogenic Biology, School of Medicine, Nantong University, Nantong, China
| | - Jinjing Guo
- Department of Pathogenic Biology, School of Medicine, Nantong University, Nantong, China
| | - Fangzheng Tan
- Shanghai Chongming Center for Disease Control and Prevention, Shanghai, China
| | - Haoliang Shen
- The Intensive Care Unit, Affiliated Hospital of Nantong University, Nantong, China
| | - Yunhong Hu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Key Laboratory of Industrial Biotechnology, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, School of Life Sciences, Hubei University, Wuhan, China
| | - Lili Huang
- The Intensive Care Unit, Affiliated Hospital of Nantong University, Nantong, China
| | - Yang Lu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Key Laboratory of Industrial Biotechnology, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, School of Life Sciences, Hubei University, Wuhan, China
| | - Yihui Fan
- Department of Pathogenic Biology, School of Medicine, Nantong University, Nantong, China
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2
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Sanquer H, Heyman J, Hanna K, Le Borgne T. Microscale Chaotic Mixing as a Driver for Chemical Reactions in Porous Media. Environ Sci Technol 2024; 58:8899-8908. [PMID: 38710098 DOI: 10.1021/acs.est.3c09749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Mixing-induced reactions play a key role in a large range of biogeochemical and contaminant transport processes in the subsurface. Fluid flow through porous media was recently shown to exhibit chaotic mixing dynamics at the pore scale, enhancing microscale concentration gradients and controlling mixing rates. While this phenomenon is likely ubiquitous in environmental systems, it is not known how it affects chemical reactions. Here, we use refractive index matching and laser-induced fluorescence imaging of a bimolecular redox reaction to investigate the consequence of pore scale chaotic mixing on the reaction rates. The overestimation of measured reaction rates by the classical macrodispersion model highlights the persistence of incomplete mixing on the pore scale. We show that the reaction product formation is controlled by microscale chaotic mixing, which induces an exponential increase of the mixing interface and of the reaction rates. We derive a reactive transport model that captures experimental results and predicts that chaotic mixing has a first order control on reaction rates across a large range of time scales and Péclet and Damköhler numbers. These findings provide a new framework for understanding, assessing, and predicting mixing-induced reactions and their role on the fate and mobility of environmental compounds in natural porous media.
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Affiliation(s)
- Hugo Sanquer
- Géosciences Rennes, Université de Rennes, UMR CNRS 6118, 263 Avenue du Général Leclerc, F-35042 Rennes, France
| | - Joris Heyman
- Géosciences Rennes, Université de Rennes, UMR CNRS 6118, 263 Avenue du Général Leclerc, F-35042 Rennes, France
| | - Khalil Hanna
- École Nationale Supérieure de Chimie, Université de Rennes, UMR CNRS 6226, 11 Allée de Beaulieu, F-35708 Cedex 7 Rennes, France
| | - Tanguy Le Borgne
- Géosciences Rennes, Université de Rennes, UMR CNRS 6118, 263 Avenue du Général Leclerc, F-35042 Rennes, France
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3
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Kwon YY, Hui S. IL-6 promotes tumor growth through immune evasion but is dispensable for cachexia. EMBO Rep 2024:10.1038/s44319-024-00144-3. [PMID: 38671295 DOI: 10.1038/s44319-024-00144-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 03/26/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024] Open
Abstract
Various cytokines have been implicated in cancer cachexia. One such cytokine is IL-6, deemed as a key cachectic factor in mice inoculated with colon carcinoma 26 (C26) cells, a widely used cancer cachexia model. Here we tested the causal role of IL-6 in cancer cachexia by knocking out the IL-6 gene in C26 cells. We found that the growth of IL-6 KO tumors was dramatically delayed. More strikingly, while IL-6 KO tumors eventually reached the similar size as wild-type tumors, cachexia still took place, despite no elevation in circulating IL-6. In addition, the knockout of leukemia inhibitory factor (LIF), another IL-6 family cytokine proposed as a cachectic factor in the model, also affected tumor growth but not cachexia. We further showed an increase in the infiltration of immune cell population in the IL-6 KO tumors compared with wild-type controls and the defective IL-6 KO tumor growth was rescued in immunodeficient mice while cachexia was not. Thus, IL-6 promotes tumor growth by facilitating immune evasion but is dispensable for cachexia.
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Affiliation(s)
- Young-Yon Kwon
- Department of Molecular Metabolism, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Sheng Hui
- Department of Molecular Metabolism, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
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4
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Walsh RM, Luongo R, Giacomelli E, Ciceri G, Rittenhouse C, Verrillo A, Galimberti M, Bocchi VD, Wu Y, Xu N, Mosole S, Muller J, Vezzoli E, Jungverdorben J, Zhou T, Barker RA, Cattaneo E, Studer L, Baggiolini A. Generation of human cerebral organoids with a structured outer subventricular zone. Cell Rep 2024; 43:114031. [PMID: 38583153 DOI: 10.1016/j.celrep.2024.114031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 12/12/2023] [Accepted: 03/18/2024] [Indexed: 04/09/2024] Open
Abstract
Outer radial glia (oRG) emerge as cortical progenitor cells that support the development of an enlarged outer subventricular zone (oSVZ) and the expansion of the neocortex. The in vitro generation of oRG is essential to investigate the underlying mechanisms of human neocortical development and expansion. By activating the STAT3 signaling pathway using leukemia inhibitory factor (LIF), which is not expressed in guided cortical organoids, we define a cortical organoid differentiation method from human pluripotent stem cells (hPSCs) that recapitulates the expansion of a progenitor pool into the oSVZ. The oSVZ comprises progenitor cells expressing specific oRG markers such as GFAP, LIFR, and HOPX, closely matching human fetal oRG. Finally, incorporating neural crest-derived LIF-producing cortical pericytes into cortical organoids recapitulates the effects of LIF treatment. These data indicate that increasing the cellular complexity of the organoid microenvironment promotes the emergence of oRG and supports a platform to study oRG in hPSC-derived brain organoids routinely.
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Affiliation(s)
- Ryan M Walsh
- Center for Stem Cell Biology and Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Raffaele Luongo
- Institute of Oncology Research (IOR), Bellinzona Institutes of Science (BIOS+), 6500 Bellinzona, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana, 6900 Lugano, Switzerland
| | - Elisa Giacomelli
- Center for Stem Cell Biology and Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Gabriele Ciceri
- Center for Stem Cell Biology and Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Chelsea Rittenhouse
- Center for Stem Cell Biology and Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Weill Cornell Medicine Graduate School of Medical Sciences, Department of Neuroscience, New York, NY 1300, USA
| | - Antonietta Verrillo
- Institute of Oncology Research (IOR), Bellinzona Institutes of Science (BIOS+), 6500 Bellinzona, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana, 6900 Lugano, Switzerland
| | - Maura Galimberti
- Laboratory of Stem Cell Biology and Pharmacology of Neurodegenerative Diseases, Department of Biosciences, University of Milan, 20122 Milan, Italy; INGM, Istituto Nazionale Genetica Molecolare, 20122 Milan, Italy
| | - Vittoria Dickinson Bocchi
- Center for Stem Cell Biology and Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Youjun Wu
- The SKI Stem Cell Research Facility, The Center for Stem Cell Biology and Developmental Biology Program, Sloan Kettering Institute for Cancer Research, New York, NY 10065, USA
| | - Nan Xu
- Center for Stem Cell Biology and Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Louis V. Gerstner Jr. Graduate School of Biomedical Sciences, New York, NY 10065, USA
| | - Simone Mosole
- Institute of Oncology Research (IOR), Bellinzona Institutes of Science (BIOS+), 6500 Bellinzona, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana, 6900 Lugano, Switzerland
| | - James Muller
- Developmental Biology and Immunology Programs, Sloan Kettering Institute, New York, NY 10065, USA
| | - Elena Vezzoli
- Laboratory of Stem Cell Biology and Pharmacology of Neurodegenerative Diseases, Department of Biosciences, University of Milan, 20122 Milan, Italy; INGM, Istituto Nazionale Genetica Molecolare, 20122 Milan, Italy
| | - Johannes Jungverdorben
- Center for Stem Cell Biology and Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Ting Zhou
- The SKI Stem Cell Research Facility, The Center for Stem Cell Biology and Developmental Biology Program, Sloan Kettering Institute for Cancer Research, New York, NY 10065, USA
| | - Roger A Barker
- Cambridge Stem Cell Institute and John van Geest Centre for Brain Repair, Department of Clinical Neurosciences, Forvie Site, University of Cambridge, Cambridge, UK
| | - Elena Cattaneo
- Laboratory of Stem Cell Biology and Pharmacology of Neurodegenerative Diseases, Department of Biosciences, University of Milan, 20122 Milan, Italy; INGM, Istituto Nazionale Genetica Molecolare, 20122 Milan, Italy
| | - Lorenz Studer
- Center for Stem Cell Biology and Developmental Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Weill Cornell Medicine Graduate School of Medical Sciences, Department of Neuroscience, New York, NY 1300, USA.
| | - Arianna Baggiolini
- Institute of Oncology Research (IOR), Bellinzona Institutes of Science (BIOS+), 6500 Bellinzona, Switzerland; Faculty of Biomedical Sciences, Università della Svizzera Italiana, 6900 Lugano, Switzerland.
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5
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Rios SA, Oyervides S, Uribe D, Reyes AM, Fanniel V, Vazquez J, Keniry M. Emerging Therapies for Glioblastoma. Cancers (Basel) 2024; 16:1485. [PMID: 38672566 PMCID: PMC11048459 DOI: 10.3390/cancers16081485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 04/01/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
Glioblastoma is most commonly a primary brain tumor and the utmost malignant one, with a survival rate of approximately 12-18 months. Glioblastoma is highly heterogeneous, demonstrating that different types of cells from the same tumor can manifest distinct gene expression patterns and biological behaviors. Conventional therapies such as temozolomide, radiation, and surgery have limitations. As of now, there is no cure for glioblastoma. Alternative treatment methods to eradicate glioblastoma are discussed in this review, including targeted therapies to PI3K, NFKβ, JAK-STAT, CK2, WNT, NOTCH, Hedgehog, and TGFβ pathways. The highly novel application of oncolytic viruses and nanomaterials in combating glioblastoma are also discussed. Despite scores of clinical trials for glioblastoma, the prognosis remains poor. Progress in breaching the blood-brain barrier with nanomaterials and novel avenues for targeted and combination treatments hold promise for the future development of efficacious glioblastoma therapies.
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Affiliation(s)
| | | | | | | | | | | | - Megan Keniry
- School of Integrative Biological and Chemical Sciences, College of Sciences, The University of Texas Rio Grande Valley, Edinburg, TX 78539, USA; (S.A.R.); (D.U.); (A.M.R.)
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Nahar A, Becker J, Pasquariello R, Herrick J, Rogers H, Zhang M, Schoolcraft W, Krisher RL, Yuan Y. FGF2, LIF, and IGF-1 supplementation improves mouse oocyte in vitro maturation via increased glucose metabolism†. Biol Reprod 2024; 110:672-683. [PMID: 38263524 DOI: 10.1093/biolre/ioae014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 12/22/2023] [Accepted: 01/15/2024] [Indexed: 01/25/2024] Open
Abstract
Chemically defined oocyte maturation media supplemented with FGF2, LIF, and IGF-1 (FLI medium) enabled significantly improved oocyte quality in multiple farm animals, yet the molecular mechanisms behind such benefits were poorly defined. Here, we first demonstrated that FLI medium enhanced mouse oocyte quality assessed by blastocyst formation after in vitro fertilization and implantation and fetal development after embryo transfer. We then analyzed the glucose concentrations in the spent media; reactive oxygen species concentrations; mitochondrial membrane potential; spindle morphology in oocytes; and the abundance of transcripts of endothelial growth factor-like factors, cumulus expansion factors, and glucose metabolism-related genes in cumulus cells. We found that FLI medium enabled increased glucose metabolism through glycolysis, pentose phosphate pathway, and hexosamine biosynthetic pathway, as well as more active endothelial growth factor-like factor expressions in cumulus cells, resulting in improved cumulus cell expansion, decreased spindle abnormality, and overall improvement in oocyte quality. In addition, the activities of MAPK1/3, PI3K/AKT, JAK/STAT3, and mTOR signaling pathways in cumulus cells were assessed by the phosphorylation of MAPK1/3, AKT, STAT3, and mTOR downstream target RPS6KB1. We demonstrated that FLI medium promoted activations of all these signaling pathways at multiple different time points during in vitro maturation.
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Affiliation(s)
- Asrafun Nahar
- Colorado Center for Reproductive Medicine, Lone Tree, CO, USA
| | - John Becker
- Colorado Center for Reproductive Medicine, Lone Tree, CO, USA
| | - Rolando Pasquariello
- Colorado Center for Reproductive Medicine, Lone Tree, CO, USA
- Department of Agricultural and Environmental Sciences, University of Milan, Milan, Italy
| | - Jason Herrick
- Colorado Center for Reproductive Medicine, Lone Tree, CO, USA
- Omaha's Henry Doorly Zoo and Aquarium, Omaha, NE, USA
| | - Heather Rogers
- Colorado Center for Reproductive Medicine, Lone Tree, CO, USA
| | - Mingxiang Zhang
- Colorado Center for Reproductive Medicine, Lone Tree, CO, USA
| | | | - Rebecca L Krisher
- Colorado Center for Reproductive Medicine, Lone Tree, CO, USA
- Genus Plc, DeForest, WI, USA
| | - Ye Yuan
- Colorado Center for Reproductive Medicine, Lone Tree, CO, USA
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7
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Rafii P, Cruz PR, Ettich J, Seibel C, Padrini G, Wittich C, Lang A, Petzsch P, Köhrer K, Moll JM, Floss DM, Scheller J. Engineered interleukin-6-derived cytokines recruit artificial receptor complexes and disclose CNTF signaling via the OSMR. J Biol Chem 2024; 300:107251. [PMID: 38569939 PMCID: PMC11039321 DOI: 10.1016/j.jbc.2024.107251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 03/22/2024] [Accepted: 03/27/2024] [Indexed: 04/05/2024] Open
Abstract
Ciliary neurotrophic factor (CNTF) activates cells via the non-signaling α-receptor CNTF receptor (CNTFR) and the two signaling β-receptors glycoprotein 130 (gp130) and leukemia inhibitory factor receptor (LIFR). The CNTF derivate, Axokine, was protective against obesity and insulin resistance, but clinical development was halted by the emergence of CNTF antibodies. The chimeric cytokine IC7 used the framework of interleukin (IL-)6 with the LIFR-binding site from CNTF to activate cells via IL-6R:gp130:LIFR complexes. Similar to CNTF/Axokine, IC7 protected mice from obesity and insulin resistance. Here, we developed CNTF-independent chimeras that specifically target the IL-6R:gp130:LIFR complex. In GIL-6 and GIO-6, we transferred the LIFR binding site from LIF or OSM to IL-6, respectively. While GIO-6 signals via gp130:IL-6R:LIFR and gp130:IL-6R:OSMR complexes, GIL-6 selectively activates the IL-6R:gp130:LIFR receptor complex. By re-evaluation of IC7 and CNTF, we discovered the Oncostatin M receptor (OSMR) as an alternative non-canonical high-affinity receptor leading to IL-6R:OSMR:gp130 and CNTFR:OSMR:gp130 receptor complexes, respectively. The discovery of OSMR as an alternative high-affinity receptor for IC7 and CNTF designates GIL-6 as the first truly selective IL-6R:gp130:LIFR cytokine, whereas GIO-6 is a CNTF-free alternative for IC7.
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Affiliation(s)
- Puyan Rafii
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Patricia Rodrigues Cruz
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Julia Ettich
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Christiane Seibel
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Giacomo Padrini
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Christoph Wittich
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Alexander Lang
- Division of Cardiology, Pulmonology, and Vascular Medicine, Cardiovascular Research Laboratory, Medical Faculty, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Patrick Petzsch
- Biological and Medical Research Center (BMFZ), Medical Faculty, Heinrich-Heine-University, Duesseldorf, Germany
| | - Karl Köhrer
- Biological and Medical Research Center (BMFZ), Medical Faculty, Heinrich-Heine-University, Duesseldorf, Germany
| | - Jens M Moll
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Doreen M Floss
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Jürgen Scheller
- Institute of Biochemistry and Molecular Biology II, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany.
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8
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Di Giorgio C, Bellini R, Lupia A, Massa C, Urbani G, Bordoni M, Marchianò S, Rosselli R, De Gregorio R, Rapacciuolo P, Sepe V, Morretta E, Monti MC, Moraca F, Cari L, Ullah KRS, Natalizi N, Graziosi L, Distrutti E, Biagioli M, Catalanotti B, Donini A, Zampella A, Fiorucci S. The leukemia inhibitory factor regulates fibroblast growth factor receptor 4 transcription in gastric cancer. Cell Oncol (Dordr) 2024; 47:695-710. [PMID: 37945798 PMCID: PMC11090936 DOI: 10.1007/s13402-023-00893-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/14/2023] [Indexed: 11/12/2023] Open
Abstract
PURPOSE The gastric adenocarcinoma (GC) represents the third cause of cancer-related mortality worldwide, and available therapeutic options remain sub-optimal. The Fibroblast growth factor receptors (FGFRs) are oncogenic transmembrane tyrosine kinase receptors. FGFR inhibitors have been approved for the treatment of various cancers and a STAT3-dependent regulation of FGFR4 has been documented in the H.pylori infected intestinal GC. Therefore, the modulation of FGFR4 might be useful for the treatment of GC. METHODS To investigate wich factors could modulate FGFR4 signalling in GC, we employed RNA-seq analysis on GC patients biopsies, human patients derived organoids (PDOs) and cancer cell lines. RESULTS We report that FGFR4 expression/function is regulated by the leukemia inhibitory factor (LIF) an IL-6 related oncogenic cytokine, in JAK1/STAT3 dependent manner. The transcriptomic analysis revealed a direct correlation between the expression of LIFR and FGFR4 in the tissue of an exploratory cohort of 31 GC and confirmed these findings by two external validation cohorts of GC. A LIFR inhibitor (LIR-201) abrogates STAT3 phosphorylation induced by LIF as well as recruitment of pSTAT3 to the promoter of FGFR4. Furthermore, inhibition of FGFR4 by roblitinib or siRNA abrogates STAT3 phosphorylation and oncogentic effects of LIF in GC cells, indicating that FGFR4 is a downstream target of LIF/LIFR complex. Treating cells with LIR-201 abrogates oncogenic potential of FGF19, the physiological ligand of FGFR4. CONCLUSIONS Together these data unreveal a previously unregnized regulatory mechanism of FGFR4 by LIF/LIFR and demonstrate that LIF and FGF19 converge on the regulation of oncogenic STAT3 in GC cells.
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Affiliation(s)
| | - Rachele Bellini
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Antonio Lupia
- Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
- Net4Science Srl, University "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy
| | - Carmen Massa
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Ginevra Urbani
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Martina Bordoni
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Silvia Marchianò
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | | | - Rosa De Gregorio
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | | | - Valentina Sepe
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Elva Morretta
- Department of Pharmacy, University of Salerno, Salerno, Italy
| | | | - Federica Moraca
- Net4Science Srl, University "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Luigi Cari
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | | | | | | | | | - Michele Biagioli
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Bruno Catalanotti
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Annibale Donini
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Angela Zampella
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Stefano Fiorucci
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy.
- Department Surgical and Biomedical Sciences, University of Perugia Medical School, Perugia, Italy.
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9
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Wang H, Lin Y, Chen R, Zhu Y, Wang H, Li S, Yu L, Zhang K, Liu Y, Jing T, Sun F. Human Seminal Extracellular Vesicles Enhance Endometrial Receptivity Through Leukemia Inhibitory Factor. Endocrinology 2024; 165:bqae035. [PMID: 38518755 DOI: 10.1210/endocr/bqae035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 03/12/2024] [Accepted: 03/18/2024] [Indexed: 03/24/2024]
Abstract
Seminal extracellular vesicles (EVs) contain different subgroups that have diverse effects on sperm function. However, the effect of seminal EVs-especially their subgroups-on endometrial receptivity is largely unknown. Here, we found that seminal EVs could be divided into high-density EVs (EV-H), medium density EVs, and low-density EVs after purification using iodixanol. We demonstrated that EV-H could promote the expression and secretion of leukemia inhibitor factor (LIF) in human endometrial cells. In EV-H-treated endometrial cells, we identified 1274 differentially expressed genes (DEGs). DEGs were enriched in cell adhesion and AKT and STAT3 pathways. Therefore, we illustrated that EV-H enhanced the adhesion of human choriocarcinoma JAr cell spheroids to endometrial cells through the LIF-STAT3 pathway. Collectively, our findings indicated that seminal EV-H could regulate endometrial receptivity through the LIF pathway, which could provide novel insights into male fertility.
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Affiliation(s)
- Hanshu Wang
- Department of Andrology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong Province, China
| | - Yu Lin
- International Peace Maternity & Child Health Hospital, Shanghai Municipal Key Clinical Specialty, Institute of Embryo-Fetal Original Adult Disease, School of Medicine, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Rongrong Chen
- Department of Andrology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong Province, China
| | - Yu Zhu
- Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai, 201204, China
| | - Hongqiang Wang
- Department of Andrology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong Province, China
| | - Shengxian Li
- Department of Andrology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong Province, China
| | - Lei Yu
- Department of Andrology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong Province, China
| | - Kaishu Zhang
- Department of Andrology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong Province, China
| | - Yujie Liu
- Department of Andrology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong Province, China
| | - Tao Jing
- Department of Andrology, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong Province, China
| | - Fei Sun
- Department of Urology and Andrology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310020, Zhejiang, China
- School of Basic Medical Sciences, Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan 750004, China
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10
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Jang Y, Na HW, Shin DY, Lee J, Han JP, Kim HS, Kim SJ, Choi EJ, Lee C, Hong YD, Kim HJ, Seo YR. Integrative analysis of RNA-sequencing and microarray for the identification of adverse effects of UVB exposure on human skin. Front Public Health 2024; 12:1328089. [PMID: 38444441 PMCID: PMC10913594 DOI: 10.3389/fpubh.2024.1328089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 01/15/2024] [Indexed: 03/07/2024] Open
Abstract
Background Ultraviolet B (UVB) from sunlight represents a major environmental factor that causes toxic effects resulting in structural and functional cutaneous abnormalities in most living organisms. Although numerous studies have indicated the biological mechanisms linking UVB exposure and cutaneous manifestations, they have typically originated from a single study performed under limited conditions. Methods We accessed all publicly accessible expression data of various skin cell types exposed to UVB, including skin biopsies, keratinocytes, and fibroblasts. We performed biological network analysis to identify the molecular mechanisms and identify genetic biomarkers. Results We interpreted the inflammatory response and carcinogenesis as major UVB-induced signaling alternations and identified three candidate biomarkers (IL1B, CCL2, and LIF). Moreover, we confirmed that these three biomarkers contribute to the survival probability of patients with cutaneous melanoma, the most aggressive and lethal form of skin cancer. Conclusion Our findings will aid the understanding of UVB-induced cutaneous toxicity and the accompanying molecular mechanisms. In addition, the three candidate biomarkers that change molecular signals due to UVB exposure of skin might be related to the survival rate of patients with cutaneous melanoma.
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Affiliation(s)
- Yujin Jang
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea
| | - Hye-Won Na
- Research and Innovation Center, Amorepacific, Gyeonggi-do, Republic of Korea
| | - Dong Yeop Shin
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea
| | - Jun Lee
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea
| | - Jun Pyo Han
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea
| | - Hyun Soo Kim
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea
- National Institute of Environmental Research, Incheon, Republic of Korea
| | - Su Ji Kim
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea
| | - Eun-Jeong Choi
- Research and Innovation Center, Amorepacific, Gyeonggi-do, Republic of Korea
| | - Charles Lee
- The Jackson Laboratory for Genomic Medicine, Farmington, CT, United States
| | - Yong Deog Hong
- Research and Innovation Center, Amorepacific, Gyeonggi-do, Republic of Korea
| | - Hyoung-June Kim
- Research and Innovation Center, Amorepacific, Gyeonggi-do, Republic of Korea
| | - Young Rok Seo
- Department of Life Science, Institute of Environmental Medicine for Green Chemistry, Dongguk University Biomedi Campus, Gyeonggi-do, Republic of Korea
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11
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Ahmadinouri F, Parvin P, Rabbani AR. Assessment of asphaltene and resin fractions in crude oil using laser-induced fluorescence spectroscopy based on modified Beer-Lambert ( LIFS-MBL). Spectrochim Acta A Mol Biomol Spectrosc 2024; 304:123314. [PMID: 37672886 DOI: 10.1016/j.saa.2023.123314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 07/11/2023] [Accepted: 08/28/2023] [Indexed: 09/08/2023]
Abstract
Crude oil is one of the most significant petrogenic sources of polycyclic aromatic compounds (PACs). These substances play an essential role in the pollution of the marine environment. Therefore, the rapid identification of this pollutant source and its fractions is vital. For this purpose, a fast and on-site method of laser-induced fluorescence spectroscopy based on modified Beer-Lambert (LIFS-MBL) is proposed here using solvent densitometry. Three optical parameters of the self-quenching (K), the extinction (α), and the peak concentration (Cp) are experimentally extracted from MBL graphs. Note that the parameters above are known to be unique characteristics of various crude oils. The corresponding compounds are generally classified into saturate, aromatic, resin, and asphaltene fractions, abbreviated as SARA. Differentiation among these fractions is achieved using the LIFS-MBL method by selecting the optimal excitation wavelength at 405 nm. This line effectively rules out the light aromatic rings and focuses on heavy fractions. The correlation of optical parameters with heavy oil fractions is verified according to analysis of variance. Statistical relations are proposed to calculate crude oil fractions values. The values of light fractions including saturate and aromatic components can also be determined by the heavy fractions. In this method, the test time is notably reduced from four days using the standard methods to less than half an hour according to the presented LIFS-MBL technique.
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Affiliation(s)
- Fatemeh Ahmadinouri
- Department of Energy Engineering and Physics, Amirkabir University of Technology (Tehran Polytechnic), P.O. Box 15875-4413, Tehran, Iran
| | - Parviz Parvin
- Department of Energy Engineering and Physics, Amirkabir University of Technology (Tehran Polytechnic), P.O. Box 15875-4413, Tehran, Iran.
| | - Ahmad Reza Rabbani
- Petroleum Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), P.O. Box 15875-4413, Tehran, Iran
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12
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Spencer N, Rodriguez Sanchez AL, Gopalam R, Subbarayalu P, Medina DM, Yang X, Ramirez P, Randolph L, Aller EJ, Santhamma B, Rao MK, Tekmal RR, Nair HB, Kost ER, Vadlamudi RK, Viswanadhapalli S. The LIFR Inhibitor EC359 Effectively Targets Type II Endometrial Cancer by Blocking LIF/LIFR Oncogenic Signaling. Int J Mol Sci 2023; 24:17426. [PMID: 38139260 PMCID: PMC10744027 DOI: 10.3390/ijms242417426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 12/01/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023] Open
Abstract
Endometrial cancer (ECa) is the most common female gynecologic cancer. When comparing the two histological subtypes of endometrial cancer, Type II tumors are biologically more aggressive and have a worse prognosis than Type I tumors. Current treatments for Type II tumors are ineffective, and new targeted therapies are urgently needed. LIFR and its ligand, LIF, have been shown to play a critical role in the progression of multiple solid cancers and therapy resistance. The role of LIF/LIFR in the progression of Type II ECa, on the other hand, is unknown. We investigated the role of LIF/LIFR signaling in Type II ECa and tested the efficacy of EC359, a novel small-molecule LIFR inhibitor, against Type II ECa. The analysis of tumor databases has uncovered a correlation between diminished survival rates and increased expression of leukemia inhibitory factor (LIF), suggesting a potential connection between altered LIF expression and unfavorable overall survival in Type II ECa. The results obtained from cell viability and colony formation assays demonstrated a significant decrease in the growth of Type II ECa LIFR knockdown cells in comparison to vector control cells. Furthermore, in both primary and established Type II ECa cells, pharmacological inhibition of the LIF/LIFR axis with EC359 markedly decreased cell viability, long-term cell survival, and invasion, and promoted apoptosis. Additionally, EC359 treatment reduced the activation of pathways driven by LIF/LIFR, such as AKT, mTOR, and STAT3. Tumor progression was markedly inhibited by EC359 treatment in two different patient-derived xenograft models in vivo and patient-derived organoids ex vivo. Collectively, these results suggest LIFR inhibitor EC359 as a possible new small-molecule therapeutics for the management of Type II ECa.
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Affiliation(s)
- Nicole Spencer
- Division of Reproductive Research, Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, TX 78229, USA; (N.S.); (A.L.R.S.); (R.G.); (X.Y.); (P.R.); (L.R.); (E.J.A.); (R.R.T.); (E.R.K.); (R.K.V.)
| | - Alondra Lee Rodriguez Sanchez
- Division of Reproductive Research, Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, TX 78229, USA; (N.S.); (A.L.R.S.); (R.G.); (X.Y.); (P.R.); (L.R.); (E.J.A.); (R.R.T.); (E.R.K.); (R.K.V.)
| | - Rahul Gopalam
- Division of Reproductive Research, Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, TX 78229, USA; (N.S.); (A.L.R.S.); (R.G.); (X.Y.); (P.R.); (L.R.); (E.J.A.); (R.R.T.); (E.R.K.); (R.K.V.)
| | - Panneerdoss Subbarayalu
- Department of Cell Systems & Anatomy, Greehey Children’s Cancer Research Institute, University of Texas Health San Antonio, San Antonio, TX 78229, USA; (P.S.); (D.M.M.); (M.K.R.)
| | - Daisy M. Medina
- Department of Cell Systems & Anatomy, Greehey Children’s Cancer Research Institute, University of Texas Health San Antonio, San Antonio, TX 78229, USA; (P.S.); (D.M.M.); (M.K.R.)
| | - Xue Yang
- Division of Reproductive Research, Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, TX 78229, USA; (N.S.); (A.L.R.S.); (R.G.); (X.Y.); (P.R.); (L.R.); (E.J.A.); (R.R.T.); (E.R.K.); (R.K.V.)
| | - Paulina Ramirez
- Division of Reproductive Research, Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, TX 78229, USA; (N.S.); (A.L.R.S.); (R.G.); (X.Y.); (P.R.); (L.R.); (E.J.A.); (R.R.T.); (E.R.K.); (R.K.V.)
| | - Lois Randolph
- Division of Reproductive Research, Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, TX 78229, USA; (N.S.); (A.L.R.S.); (R.G.); (X.Y.); (P.R.); (L.R.); (E.J.A.); (R.R.T.); (E.R.K.); (R.K.V.)
| | - Emily Jean Aller
- Division of Reproductive Research, Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, TX 78229, USA; (N.S.); (A.L.R.S.); (R.G.); (X.Y.); (P.R.); (L.R.); (E.J.A.); (R.R.T.); (E.R.K.); (R.K.V.)
| | | | - Manjeet K. Rao
- Department of Cell Systems & Anatomy, Greehey Children’s Cancer Research Institute, University of Texas Health San Antonio, San Antonio, TX 78229, USA; (P.S.); (D.M.M.); (M.K.R.)
| | - Rajeshwar Rao Tekmal
- Division of Reproductive Research, Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, TX 78229, USA; (N.S.); (A.L.R.S.); (R.G.); (X.Y.); (P.R.); (L.R.); (E.J.A.); (R.R.T.); (E.R.K.); (R.K.V.)
| | | | - Edward R. Kost
- Division of Reproductive Research, Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, TX 78229, USA; (N.S.); (A.L.R.S.); (R.G.); (X.Y.); (P.R.); (L.R.); (E.J.A.); (R.R.T.); (E.R.K.); (R.K.V.)
| | - Ratna K. Vadlamudi
- Division of Reproductive Research, Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, TX 78229, USA; (N.S.); (A.L.R.S.); (R.G.); (X.Y.); (P.R.); (L.R.); (E.J.A.); (R.R.T.); (E.R.K.); (R.K.V.)
- Mays Cancer Center, University of Texas Health San Antonio, San Antonio, TX 78229, USA
- Audie L. Murphy Division, South Texas Veterans Health Care System, San Antonio, TX 78229, USA
| | - Suryavathi Viswanadhapalli
- Division of Reproductive Research, Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, TX 78229, USA; (N.S.); (A.L.R.S.); (R.G.); (X.Y.); (P.R.); (L.R.); (E.J.A.); (R.R.T.); (E.R.K.); (R.K.V.)
- Mays Cancer Center, University of Texas Health San Antonio, San Antonio, TX 78229, USA
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13
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Abou Hammoud A, Giraud J, Gauthereau X, Blanchard C, Daburon S, Zese M, Molina-Castro S, Dubus P, Varon C, Boeuf H. The "StemDif Sensor Test": A Straightforward, Non-Invasive Assay to Characterize the Secreted Stemness and/or Differentiation Activities of Tumor-Derived Cancer Cell Lines. Biomedicines 2023; 11:3293. [PMID: 38137514 PMCID: PMC10741605 DOI: 10.3390/biomedicines11123293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/22/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
Cancer stem cells are a subpopulation of tumor cells characterized by their ability to self-renew, induce tumors upon engraftment in animals and exhibit strong resistance to chemotherapy and radiotherapy. These cells exhibit numerous characteristics in common with embryonic stem cells, expressing some of their markers, typically absent in non-pathological adult differentiated cells. The aim of this study was to investigate the potential of conditioned media from cancer stem cells to modulate the fate of Leukemia Inhibitory Factor (LIF)-dependent murine embryonic stem cells (mESCs) as a way to obtain a direct readout of the secretome of cancer cells. A functional assay, "the StemDif sensor test", was developed with two types of cancer stem cells derived from grade IV glioblastoma (adult and pediatric) or from gastric adenocarcinoma. We show that conditioned media from the selection of adult but not pediatric Glioma-Inducing Cells (GICs) maintain mESCs' pluripotency in correlation with LIF secretion and activation of STAT3 protein. In contrast, conditioned media from gastric adenocarcinoma cells display LIF-independent stemness and differentiation activities on mESC. Our test stands out for its user-friendly procedures, affordability and straightforward output, positioning it as a pioneering tool for in-depth exploration of cancer stem cell secretome characteristics.
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Affiliation(s)
- Aya Abou Hammoud
- Univ. Bordeaux, INSERM, BIOTIS, U1026, F-33000 Bordeaux, France; (A.A.H.); (C.B.); (M.Z.)
- Univ. Bordeaux, INSERM, BRIC-MIRCADE Team, U1312, F-33000 Bordeaux, France
- Univ. Bordeaux, INSERM, BRIC, U1312, F-33000 Bordeaux, France; (J.G.); (S.M.-C.); (P.D.); (C.V.)
| | - Julie Giraud
- Univ. Bordeaux, INSERM, BRIC, U1312, F-33000 Bordeaux, France; (J.G.); (S.M.-C.); (P.D.); (C.V.)
- Univ. Bordeaux, CNRS, ImmunoConcEpT, U5164, F-33000 Bordeaux, France;
| | - Xavier Gauthereau
- Univ. Bordeaux, CNRS, ImmunoConcEpT, U5164, F-33000 Bordeaux, France;
| | - Camille Blanchard
- Univ. Bordeaux, INSERM, BIOTIS, U1026, F-33000 Bordeaux, France; (A.A.H.); (C.B.); (M.Z.)
| | | | - Marco Zese
- Univ. Bordeaux, INSERM, BIOTIS, U1026, F-33000 Bordeaux, France; (A.A.H.); (C.B.); (M.Z.)
| | - Silvia Molina-Castro
- Univ. Bordeaux, INSERM, BRIC, U1312, F-33000 Bordeaux, France; (J.G.); (S.M.-C.); (P.D.); (C.V.)
| | - Pierre Dubus
- Univ. Bordeaux, INSERM, BRIC, U1312, F-33000 Bordeaux, France; (J.G.); (S.M.-C.); (P.D.); (C.V.)
| | - Christine Varon
- Univ. Bordeaux, INSERM, BRIC, U1312, F-33000 Bordeaux, France; (J.G.); (S.M.-C.); (P.D.); (C.V.)
| | - Helene Boeuf
- Univ. Bordeaux, INSERM, BIOTIS, U1026, F-33000 Bordeaux, France; (A.A.H.); (C.B.); (M.Z.)
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14
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Elhamdaoui I, Selmani S, Sabsabi M, Constantin M, Bouchard P, Vidal F. Quantifying Platinum and Palladium in Solid Ore Using Laser-Induced Breakdown Spectroscopy Assisted by the Laser-Induced Fluorescence (LIBS- LIF) Technique. Appl Spectrosc 2023; 77:1382-1392. [PMID: 37908120 DOI: 10.1177/00037028231202804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
The laser-induced breakdown spectroscopy assisted by laser-induced fluorescence (LIBS-LIF) in a two-step process was used to measure the concentration of platinum (Pt) and palladium (Pd) by surface analysis of a solid ore core from the Lac des Iles mine followed by analysis of the same core that was pulverized and compacted. This work focuses mainly on the measurement of Pt since the case of Pd has been extensively discussed in previous work. The excitation of Pt is performed at 235.71 nm with fluorescence emission observed near 269.84 nm. Calibration was performed with synthetic samples prepared from the same ore as the samples studied and the calibration curve shows good linearity in Pt content over several orders of magnitude. A limit of detection (LOD) of approximately 0.15 parts per million (ppm) over an average of 200 laser shots was demonstrated. In contrast, conventional LIBS provides a LOD of about 21 ppm over an average of 200 laser shots due to low signal-to-noise ratio and spectral interference from other elements and does not meet the requirements for estimating the average Pt concentration in the ore. The Pt concentrations obtained using LIBS-LIF on solid ore are generally in good agreement with those obtained in its pulverized and compacted form, as well as with laboratory measurements made by conventional chemical methods. However, the comparison of the results obtained for Pd using LIBS-LIF with the laboratory showed a less satisfactory agreement, probably due to its more inhomogeneous distribution in the ore.
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Affiliation(s)
- Ismail Elhamdaoui
- Institut National de la Recherche Scientifque, Centre Énergie Matériaux Télécommunications, Varennes, Quebec, Canada
| | - Samira Selmani
- Institut National de la Recherche Scientifque, Centre Énergie Matériaux Télécommunications, Varennes, Quebec, Canada
| | - Mohamad Sabsabi
- National Research Council of Canada, Boucherville, Quebec, Canada
| | - Marc Constantin
- Département de Géologie et de Génie Géologique, Université Laval, Quebec, Quebec, Canada
| | - Paul Bouchard
- National Research Council of Canada, Boucherville, Quebec, Canada
| | - François Vidal
- Institut National de la Recherche Scientifque, Centre Énergie Matériaux Télécommunications, Varennes, Quebec, Canada
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15
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De Freitas-Suarez A, Espinosa-Ponce N, Alvarez-Roger N, Cabrera-Suarez AI, Jiménez-Jordán G, Vega-Roman R, Inyushin M, Alves JM. An Integrative Approach to the Current Treatment of HIV-Associated Neurocognitive Disorders and the Implementation of Leukemia Inhibitor Factor as a Mediator of Neurocognitive Preservation. Life (Basel) 2023; 13:2194. [PMID: 38004334 PMCID: PMC10672511 DOI: 10.3390/life13112194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 10/23/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023] Open
Abstract
HIV-associated neurocognitive disorders (HANDs) continue to impact patients despite antiretroviral therapy. A combination of antiretroviral therapies can diminish the HIV viral load to near undetectable levels, but fails to preserve neurocognitive integrity. The cytokine leukemia inhibitory factor (LIF) has shown neuroprotective properties that could mitigate neurodegeneration in HANDs. The LIF promotes neurogenesis, neural cell differentiation, and survival. Combination antiretroviral therapy reduces severe forms of HANDs, but neurocognitive impairment persists; additionally, some antiretrovirals have additional adverse neurotoxic effects. The LIF counteracts neurotoxic viral proteins and limits neural cell damage in models of neuroinflammation. Adding the LIF as an adjuvant therapy to enhance neuroprotection merits further research for managing HANDs. The successful implementation of the LIF to current therapies would contribute to achieving a better quality of life for the affected population.
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Affiliation(s)
| | - Natalia Espinosa-Ponce
- Department of Microbiology and Immunology, Universidad Central del Caribe School of Medicine, Bayamón, PR 00960, USA; (N.E.-P.); (A.I.C.-S.)
| | - Natalia Alvarez-Roger
- Department of Medicine, Universidad Central del Caribe, Bayamón, PR 00956, USA; (N.A.-R.); (R.V.-R.)
| | - Arianna Iris Cabrera-Suarez
- Department of Microbiology and Immunology, Universidad Central del Caribe School of Medicine, Bayamón, PR 00960, USA; (N.E.-P.); (A.I.C.-S.)
| | | | - Rocio Vega-Roman
- Department of Medicine, Universidad Central del Caribe, Bayamón, PR 00956, USA; (N.A.-R.); (R.V.-R.)
| | - Mikhail Inyushin
- Department of Physiology, Universidad Central del Caribe School of Medicine, Bayamón, PR 00960, USA;
| | - Janaina M. Alves
- Department of Microbiology and Immunology, Universidad Central del Caribe School of Medicine, Bayamón, PR 00960, USA; (N.E.-P.); (A.I.C.-S.)
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16
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Pecharromán I, Solé L, Álvarez‐Villanueva D, Lobo‐Jarne T, Alonso‐Marañón J, Bertran J, Guillén Y, Montoto Á, Martínez‐Iniesta M, García‐Hernández V, Giménez G, Salazar R, Santos C, Garrido M, Borràs E, Sabidó E, Bonfill‐Teixidor E, Iurlaro R, Seoane J, Villanueva A, Iglesias M, Bigas A, Espinosa L. IκB kinase-α coordinates BRD4 and JAK/STAT signaling to subvert DNA damage-based anticancer therapy. EMBO J 2023; 42:e114719. [PMID: 37737566 PMCID: PMC10620764 DOI: 10.15252/embj.2023114719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/28/2023] [Accepted: 08/28/2023] [Indexed: 09/23/2023] Open
Abstract
Activation of the IκB kinase (IKK) complex has recurrently been linked to colorectal cancer (CRC) initiation and progression. However, identification of downstream effectors other than NF-κB has remained elusive. Here, analysis of IKK-dependent substrates in CRC cells after UV treatment revealed that phosphorylation of BRD4 by IKK-α is required for its chromatin-binding at target genes upon DNA damage. Moreover, IKK-α induces the NF-κB-dependent transcription of the cytokine LIF, leading to STAT3 activation, association with BRD4 and recruitment to specific target genes. IKK-α abrogation results in defective BRD4 and STAT3 functions and consequently irreparable DNA damage and apoptotic cell death upon different stimuli. Simultaneous inhibition of BRAF-dependent IKK-α activity, BRD4, and the JAK/STAT pathway enhanced the therapeutic potential of 5-fluorouracil combined with irinotecan in CRC cells and is curative in a chemotherapy-resistant xenograft model. Finally, coordinated expression of LIF and IKK-α is a poor prognosis marker for CRC patients. Our data uncover a functional link between IKK-α, BRD4, and JAK/STAT signaling with clinical relevance.
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Affiliation(s)
- Irene Pecharromán
- Cancer Research Program, Institut Mar d'Investigacions Mèdiques, CIBERONCHospital del MarBarcelonaSpain
| | - Laura Solé
- Cancer Research Program, Institut Mar d'Investigacions Mèdiques, CIBERONCHospital del MarBarcelonaSpain
| | - Daniel Álvarez‐Villanueva
- Cancer Research Program, Institut Mar d'Investigacions Mèdiques, CIBERONCHospital del MarBarcelonaSpain
- Chemoresistance and Predictive Factors Group, Program Against Cancer Therapeutic Resistance (ProCURE), Catalan Institute of Oncology (ICO), Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL)L'Hospitalet del LlobregatBarcelonaSpain
| | - Teresa Lobo‐Jarne
- Cancer Research Program, Institut Mar d'Investigacions Mèdiques, CIBERONCHospital del MarBarcelonaSpain
| | - Josune Alonso‐Marañón
- Cancer Research Program, Institut Mar d'Investigacions Mèdiques, CIBERONCHospital del MarBarcelonaSpain
| | - Joan Bertran
- Cancer Research Program, Institut Mar d'Investigacions Mèdiques, CIBERONCHospital del MarBarcelonaSpain
- Faculty of Science and TechnologyUniversity of Vic – Central University of CataloniaVicSpain
| | - Yolanda Guillén
- Cancer Research Program, Institut Mar d'Investigacions Mèdiques, CIBERONCHospital del MarBarcelonaSpain
| | - Ángela Montoto
- Cancer Research Program, Institut Mar d'Investigacions Mèdiques, CIBERONCHospital del MarBarcelonaSpain
| | - María Martínez‐Iniesta
- Chemoresistance and Predictive Factors Group, Program Against Cancer Therapeutic Resistance (ProCURE), Catalan Institute of Oncology (ICO), Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL)L'Hospitalet del LlobregatBarcelonaSpain
| | - Violeta García‐Hernández
- Cancer Research Program, Institut Mar d'Investigacions Mèdiques, CIBERONCHospital del MarBarcelonaSpain
| | - Gemma Giménez
- Cancer Research Program, Institut Mar d'Investigacions Mèdiques, CIBERONCHospital del MarBarcelonaSpain
| | - Ramon Salazar
- Department of Medical Oncology, Catalan Institute of Oncology (ICO), Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL)‐CIBERONCL'Hospitalet de LlobregatBarcelonaSpain
| | - Cristina Santos
- Department of Medical Oncology, Catalan Institute of Oncology (ICO), Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL)‐CIBERONCL'Hospitalet de LlobregatBarcelonaSpain
| | - Marta Garrido
- Cancer Research Program, Institut Mar d'Investigacions Mèdiques, CIBERONCHospital del MarBarcelonaSpain
| | - Eva Borràs
- Proteomics Unit, Centre for Genomic Regulation (CRG)Barcelona Institute of Science and Technology (BIST)BarcelonaSpain
- Proteomics UnitUniversitat Pompeu FabraBarcelonaSpain
| | - Eduard Sabidó
- Proteomics Unit, Centre for Genomic Regulation (CRG)Barcelona Institute of Science and Technology (BIST)BarcelonaSpain
- Proteomics UnitUniversitat Pompeu FabraBarcelonaSpain
| | - Ester Bonfill‐Teixidor
- Vall d'Hebron Institute of Oncology (VHIO), CIBERONCVall d'Hebron University Hospital, Universitat Autònoma de BarcelonaBarcelonaSpain
| | - Raffaella Iurlaro
- Vall d'Hebron Institute of Oncology (VHIO), CIBERONCVall d'Hebron University Hospital, Universitat Autònoma de BarcelonaBarcelonaSpain
| | - Joan Seoane
- Vall d'Hebron Institute of Oncology (VHIO), CIBERONCVall d'Hebron University Hospital, Universitat Autònoma de BarcelonaBarcelonaSpain
- Institució Catalana de Recerca i Estudis Avançats (ICREA)BarcelonaSpain
| | - Alberto Villanueva
- Chemoresistance and Predictive Factors Group, Program Against Cancer Therapeutic Resistance (ProCURE), Catalan Institute of Oncology (ICO), Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL)L'Hospitalet del LlobregatBarcelonaSpain
- Xenopat S.L., Parc Cientific de Barcelona (PCB)BarcelonaSpain
| | - Mar Iglesias
- Department of Pathology, Institut Mar d'Investigacions Mèdiques, CIBERONCUniversitat Autònoma de BarcelonaBarcelonaSpain
| | - Anna Bigas
- Cancer Research Program, Institut Mar d'Investigacions Mèdiques, CIBERONCHospital del MarBarcelonaSpain
- Josep Carreras Leukemia Research InstituteBadalonaSpain
| | - Lluís Espinosa
- Cancer Research Program, Institut Mar d'Investigacions Mèdiques, CIBERONCHospital del MarBarcelonaSpain
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Halle JL, Counts BR, Zhang Q, James KM, Puppa MJ, Alway SE, Carson JA. Mouse skeletal muscle adaptations to different durations of treadmill exercise after the cessation of FOLFOX chemotherapy. Front Physiol 2023; 14:1283674. [PMID: 38028800 PMCID: PMC10648895 DOI: 10.3389/fphys.2023.1283674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023] Open
Abstract
FOLFOX (5-fluorouracil, leucovorin, oxaliplatin) chemotherapy is a treatment for colorectal cancer that can induce persistent fatigue and metabolic dysfunction. Regular exercise after chemotherapy cessation is widely recommended for cancer patients and has been shown to improve fatigue resistance in mice. However, gaps remain in understanding whether the early systemic and skeletal muscle adaptations to regular exercise are altered by prior FOLFOX chemotherapy treatment. Furthermore, the effects of exercise duration on early metabolic and skeletal muscle transcriptional adaptations are not fully established. Purpose: Investigate the effects of prior FOLFOX chemotherapy treatment on the early adaptations to repeated short- or long-duration treadmill exercise, including the fasting regulation of circulating metabolic regulators, skeletal muscle COXIV activity and myokine/exerkine gene expression in male mice. Methods: Male C57BL6/J mice completed 4 cycles of FOLFOX or PBS and were allowed to recover for 4-weeks. Subsets of mice performed 14 sessions (6 d/wk, 18 m/min, 5% grade) of short- (10 min/d) or long-duration (55 min/d) treadmill exercise. Blood plasma and muscle tissues were collected 48-72 h after the last exercise bout for biochemical analyses. Results: Long-duration exercise increased fasting plasma osteocalcin, LIF, and IL-6 in healthy PBS mice, and these changes were ablated by prior FOLFOX treatment. Slow-oxidative soleus muscle COXIV activity increased in response to long-duration exercise in PBS mice, which was blocked by prior FOLFOX treatment. Fast-glycolytic plantaris muscle COXIV activity increased with short-duration exercise independent of FOLFOX administration. There was a main effect for long-duration exercise to increase fasting muscle IL-6 and COXIV mRNA expression independent of FOLFOX. FOLFOX administration reduced muscle IL-6, LIF, and BDNF mRNA expression irrespective of long-duration exercise. Interestingly, short-duration exercise suppressed the FOLXOX induction of muscle myostatin mRNA expression. Conclusion: FOLFOX attenuated early exercise adaptations related to fasting circulating osteocalcin, LIF, and IL-6. However, prior FOLFOX treatment did not alter the exercise adaptations of plantaris muscle COXIV activity and plasma adiponectin. An improved understanding of mechanisms underlying exercise adaptations after chemotherapy will provide the basis for successfully treating fatigue and metabolic dysfunction in cancer survivors.
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Affiliation(s)
- Jessica L. Halle
- Integrative Muscle Biology Laboratory, Division of Regenerative and Rehabilitative Sciences, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Brittany R. Counts
- Integrative Muscle Biology Laboratory, Division of Regenerative and Rehabilitative Sciences, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Quan Zhang
- Integrative Muscle Biology Laboratory, Division of Regenerative and Rehabilitative Sciences, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Kylie M. James
- Integrative Muscle Biology Laboratory, Division of Regenerative and Rehabilitative Sciences, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Melissa J. Puppa
- The University of Memphis, College of Health Sciences, Memphis, TN, United States
| | - Stephen E. Alway
- Laboratory of Muscle Biology and Sarcopenia, Department of Physical Therapy, University of Tennessee Health Science Center, Memphis, TN, United States
| | - James A. Carson
- Integrative Muscle Biology Laboratory, Division of Regenerative and Rehabilitative Sciences, University of Tennessee Health Science Center, Memphis, TN, United States
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Li Q, Chen Y, Adeniran SO, Qiu Z, Zhao Q, Zheng P. LIF regulates the expression of miR-27a-3p and HOXA10 in bovine endometrial epithelial cells via STAT3 pathway. Theriogenology 2023; 210:101-109. [PMID: 37490795 DOI: 10.1016/j.theriogenology.2023.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 06/09/2023] [Accepted: 07/12/2023] [Indexed: 07/27/2023]
Abstract
LIF is crucial in regulating embryo implantation, while HOXA10 is a marker gene for uterine receptivity. However, the specific mechanism of LIF regulating HOXA10 during cow embryo implantation has not been fully understood. To address this knowledge gap, the experiment involved treating bovine endometrial epithelial cells (BEECs) with LIF to investigate the relationship between LIF, miRNA, and HOXA10. The experimental findings revealed that applying LIF resulted in a substantial increase in the proliferation of endometrial epithelial cells. Moreover, the expressions of PI3K, AKT, HOXA10, CDK4, cyclinD1, and cyclinE1 were significantly elevated. Conversely, the expression of p21Cipl was significantly reduced. In the group that received a combination of LIF and a STAT3 inhibitor, the expression of PI3K/AKT remained significantly increased, but there was no significant change in the expression of HOXA10. When miRNA-27a-3p was overexpressed, it resulted in a decrease in both the RNA and protein expression of HOXA10. Conversely, inhibiting miRNA-27a-3p increased the RNA and protein expression of HOXA10. In the presence of LIF treatment, the expression of miRNA-27a-3p was reduced, while the expression of HOXA10 was increased. However, when LIF and a STAT3 inhibitor were combined, there was no significant change in the expression of miRNA-27a-3p or HOXA10. Consequently, LIF facilitated cell proliferation by activating the PI3K/AKT pathway. LIF controlled the expression of miRNA-27a-3p and HOXA10 in endometrial epithelial cells through STAT3, with miRNA-27a-3p negatively regulating the expression of HOXA10.
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Affiliation(s)
- Qi Li
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Yanru Chen
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Samson Olugbenga Adeniran
- Department of Biological Sciences, College of Basic and Applied Sciences, Mountain Top University Ibafo, Ogun State, Nigeria
| | - Zixi Qiu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Qian Zhao
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Peng Zheng
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China.
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19
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Abdelkareem AO, Iews MS, Ait-Allah AS, Rasheed SM, Helmy YA, Habte R, Abdelhafez FF, Bedaiwy MA. Immunohistochemistry of Leukemia Inhibitory Factor and Integrin αVβ3 in Mouse Endometrium Following Kisspeptin-54 Ovulation Trigger. Reprod Sci 2023; 30:3084-3091. [PMID: 37126206 DOI: 10.1007/s43032-023-01243-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 04/09/2023] [Indexed: 05/02/2023]
Abstract
Kisspeptin (KP) is a group of hypothalamic neuropeptides encoded by KISS-1 gene. KP-54, a 54-amino-acid peptide, helps regulate the hypothalamic-pituitary-ovarian axis and plays a potential role in implantation. C57BL/6 J female mice were superovulated via intraperitoneal injection of 5 International Units (IU) pregnant mare serum gonadotrophin (day 1). Forty-eight hours later, mice (5/group) were injected with phosphate-buffered saline (PBS) (group A), 5 IU human chorionic gonadotrophin (hCG) (group B), or 3 nmol KP-54 (group C). On day 7, mice were euthanized and uteri excised to create paraformaldehyde-fixed paraffin-embedded sections that were immunostained for the implantation markers: leukemia inhibitory factor (LIF) and integrin αVβ3 (ITG αVβ3). Slides were scored for intensity of staining in endometrial glandular epithelium (GE) and stromal cells (SCs) via histoscore (H-score). Data were analyzed using the Kruskal-Wallis test followed by the Mann-Whitney U test for pairwise comparisons. LIF expression was significantly higher in GE and SCs of mice triggered with KP-54 compared to placebo (P = .009 for both), but only higher than hCG trigger group in SCs (P = .009). Meanwhile, ITG αVβ3 expression was significantly higher in SCs of mice triggered with KP-54 compared to placebo (P = .028). In conclusion, using KP-54 as an ovulation trigger resulted in higher expression of the implantation markers LIF and ITG αVβ3 in mice endometrium compared to hCG or placebo. This suggests a potential role for KP-54 trigger in improving embryo implantation in clinical IVF. However, further studies are needed to correlate these results with clinical implantation rates and pregnancy outcomes.
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Affiliation(s)
- Amr O Abdelkareem
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynaecology, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
- Department of Obstetrics and Gynecology, Faculty of Medicine, Sohag University, Sohag, Egypt
| | - Mahmoud S Iews
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynaecology, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
- Department of Obstetrics and Gynecology, Faculty of Medicine, South Valley University, Qena, Egypt
| | - Abdou S Ait-Allah
- Department of Obstetrics and Gynecology, Faculty of Medicine, Sohag University, Sohag, Egypt
| | - Salah M Rasheed
- Department of Obstetrics and Gynecology, Faculty of Medicine, Sohag University, Sohag, Egypt
| | - Yasser A Helmy
- Department of Obstetrics and Gynecology, Faculty of Medicine, Sohag University, Sohag, Egypt
| | - Ruth Habte
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynaecology, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Faten F Abdelhafez
- Department of Obstetrics and Gynecology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Mohamed A Bedaiwy
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynaecology, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada.
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Ma S, Li Y, Peng Y, Wang W. Toward commercial applications of LED and laser-induced fluorescence techniques for food identity, quality, and safety monitoring: A review. Compr Rev Food Sci Food Saf 2023; 22:3620-3646. [PMID: 37458292 DOI: 10.1111/1541-4337.13196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 05/23/2023] [Accepted: 05/26/2023] [Indexed: 09/13/2023]
Abstract
The assessment of food safety and quality is a matter of paramount importance, especially considering the challenges posed by climate change. Convenient, eco-friendly, and non-destructive techniques have attracted extensive attention in the food industry because they can retain food safety and quality. Fluorescence radiation, the process by which fluorophore emits light upon the absorption of ultraviolet or visible light, offers the advantages of high sensitivity and selectivity. The use of excitation-emission matrix (EEM) has been extensively explored in the food industry, but on-site detection of EEMs remain a challenge. To address this limitation, laser-induced fluorescence (LIF) and light emitting diode-induced fluorescence (LED-IF) have been implemented in many cases to facilitate the transition of fluorescence measurements from the laboratory to commercial applications. This review provides an overview of the application of commercially available LIF/LED-IF devices for non-destructive food measurement and recent studies that focus on the development of LIF/LED-IF devices for commercial applications. These studies were categorized into two stages: the preliminary exploration stage, which emphasizes the selection of an appropriate excitation wavelength based on the combination of EEM and chemometrics, and the pre-application stage, where experiments were conducted on scouting with specific excitation wavelength. Although commercially available devices have emerged in many research fields, only a limited number have been reported for use in the food industry. Future studies should focus on enhancing the diversity of test samples and parameters that can be measured by a single device, exploring the application of LIF techniques for detecting low-concentration substances in food, investigating more quantitative approaches, and developing embedded computing devices.
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Affiliation(s)
- Shaojin Ma
- College of Engineering, China Agricultural University, Beijing, China
| | - Yongyu Li
- College of Engineering, China Agricultural University, Beijing, China
| | - Yankun Peng
- College of Engineering, China Agricultural University, Beijing, China
| | - Wei Wang
- College of Engineering, China Agricultural University, Beijing, China
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Wu Y, Xu M, Feng Z, Wu H, Wu J, Ha X, Wu Y, Chen S, Xu F, Wen H, Li S, Wu X. AUF1-induced circular RNA hsa_circ_0010467 promotes platinum resistance of ovarian cancer through miR-637/ LIF/STAT3 axis. Cell Mol Life Sci 2023; 80:256. [PMID: 37589744 PMCID: PMC11072515 DOI: 10.1007/s00018-023-04906-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 07/12/2023] [Accepted: 08/02/2023] [Indexed: 08/18/2023]
Abstract
BACKGROUND Increasing evidences has indicated that primary and acquired resistance of ovarian cancer (OC) to platinum is mediated by multiple molecular and cellular factors. Understanding these mechanisms could promote the therapeutic efficiency for patients with OC. METHODS Here, we screened the expression pattern of circRNAs in samples derived from platinum-resistant and platinum-sensitive OC patients using RNA-sequencing (RNA-seq). The expression of hsa_circ_0010467 was validated by Sanger sequencing, RT-qPCR, and fluorescence in situ hybridization (FISH) assays. Overexpression and knockdown experiments were performed to explore the function of hsa_circ_0010467. The effects of hsa_circ_0010467 on enhancing platinum treatment were validated in OC cells, mouse model and patient-derived organoid (PDO). RNA pull-down, RNA immunoprecipitation (RIP), and dual-luciferase reporter assays were performed to investigate the interaction between hsa_circ_0010467 and proteins. RESULTS Increased expression of hsa_circ_0010467 is observed in platinum-resistant OC cells, tissues and serum exosomes, which is positively correlated with advanced tumor stage and poor prognosis of OC patients. Hsa_circ_0010467 is found to maintain the platinum resistance via inducing tumor cell stemness, and silencing hsa_circ_0010467 substantially increases the efficacy of platinum treatment on inhibiting OC cell proliferation. Further investigation reveals that hsa_circ_0010467 acts as a miR-637 sponge to mediate the repressive effect of miR-637 on leukemia inhibitory factor (LIF) and activates the LIF/STAT3 signaling pathway. We further discover that AUF1 could promote the biogenesis of hsa_circ_0010467 in OC. CONCLUSION Our study uncovers the mechanism that hsa_circ_0010467 mediates the platinum resistance of OC through AUF1/hsa_circ_0010467/miR-637/LIF/STAT3 axis, and provides potential targets for the treatment of platinum-resistant OC patients.
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Affiliation(s)
- Yangjun Wu
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Miao Xu
- Department of Clinical Nutrition, West China Hospital, Sichuan University, Chengdu, China
| | - Zheng Feng
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Hao Wu
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201620, China
| | - Jingni Wu
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201620, China
| | - Xinyu Ha
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yong Wu
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Siyu Chen
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Fei Xu
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Hao Wen
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Shengli Li
- Precision Research Center for Refractory Diseases, Institute for Clinical Research, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 201620, China.
| | - Xiaohua Wu
- Department of Gynecologic Oncology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.
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22
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Powell AM, Edwards NA, Hunter H, Kiser P, Watson AJ, Cumming RC, Betts DH. Deletion of p66Shc Dysregulates ERK and STAT3 Activity in Mouse Embryonic Stem Cells, Enhancing Their Naive-Like Self-Renewal in the Presence of Leukemia Inhibitory Factor. Stem Cells Dev 2023; 32:434-449. [PMID: 37183401 DOI: 10.1089/scd.2022.0283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023] Open
Abstract
The ShcA adapter protein is necessary for early embryonic development. The role of ShcA in development is primarily attributed to its 52 and 46 kDa isoforms that transduce receptor tyrosine kinase signaling through the extracellular signal regulated kinase (ERK). During embryogenesis, ERK acts as the primary signaling effector, driving fate acquisition and germ layer specification. P66Shc, the largest of the ShcA isoforms, has been observed to antagonize ERK in several contexts; however, its role during embryonic development remains poorly understood. We hypothesized that p66Shc could act as a negative regulator of ERK activity during embryonic development, antagonizing early lineage commitment. To explore the role of p66Shc in stem cell self-renewal and differentiation, we created a p66Shc knockout murine embryonic stem cell (mESC) line. Deletion of p66Shc enhanced basal ERK activity, but surprisingly, instead of inducing mESC differentiation, loss of p66Shc enhanced the expression of core and naive pluripotency markers. Using pharmacologic inhibitors to interrogate potential signaling mechanisms, we discovered that p66Shc deletion permits the self-renewal of naive mESCs in the absence of conventional growth factors, by increasing their responsiveness to leukemia inhibitory factor (LIF). We discovered that loss of p66Shc enhanced not only increased ERK phosphorylation but also increased phosphorylation of Signal transducer and activator of transcription in mESCs, which may be acting to stabilize their naive-like identity, desensitizing them to ERK-mediated differentiation cues. These findings identify p66Shc as a regulator of both LIF-mediated ESC pluripotency and of signaling cascades that initiate postimplantation embryonic development and ESC commitment.
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Affiliation(s)
- Andrew M Powell
- Department of Biology, The University of Western Ontario, London, Canada
| | - Nicole A Edwards
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Canada
| | - Hailey Hunter
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Canada
| | - Patti Kiser
- Department of Pathology and Laboratory Medicine, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Canada
| | - Andrew J Watson
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Canada
- Department of Obstetrics and Gynaecology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Canada
- Genetics and Development Division, The Children's Health Research Institute, Lawson Health Research Institute, London, Canada
| | - Robert C Cumming
- Department of Biology, The University of Western Ontario, London, Canada
- Genetics and Development Division, The Children's Health Research Institute, Lawson Health Research Institute, London, Canada
| | - Dean H Betts
- Department of Biology, The University of Western Ontario, London, Canada
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Canada
- Department of Obstetrics and Gynaecology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Canada
- Genetics and Development Division, The Children's Health Research Institute, Lawson Health Research Institute, London, Canada
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23
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Wang X, Huang J, Ou Y, Zhang S, Fan L, Liang Y, Wang Y, Zhou Y. The protective effect of leukemia inhibitory factor on apoptosis of BMSCs induced by hypoxia and serum-deprivation. Am J Transl Res 2023; 15:4065-4078. [PMID: 37434853 PMCID: PMC10331672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 05/15/2023] [Indexed: 07/13/2023]
Abstract
OBJECTIVES Bone marrow-derived mesenchymal stem cells (BMSCs) - based tissue engineering is an important strategy for treatment of bone defects. However, the ischemia environment limits the survival and biological functions of BMSCs. The present study aimed to investigate the effect of leukemia inhibitory factor (LIF) on the apoptosis of BMSCs induced by hypoxia and serum-deprivation (H&SD) as well as the underlying pathway mechanism. METHODS Mitochondrial membrane potential (MMP) was determined by flow cytometry. The apoptotic phenomenon of nuclear morphology was detected by fluorescence microscope. The ratio of apoptotic BMSCs was investigated by Annexin V/propidium iodide (PI) double staining and flow cytometric analysis. The expression of apoptosis-related molecules was detected by quantitative polymerase chain reaction (qPCR) and western blotting. RESULTS H&SD treatment induced a series of apoptotic phenotypes, including the downregulation of MMP, the apoptotic phenomenon of nuclear morphology, the increased rate of BMSCs at early and late apoptotic stage, and the reduced B-cell lymphoma-2 (Bcl-2)/Bcl-2-associated X (Bax) ratio. Administration of recombinant LIF alleviated the apoptosis of BMSCs induced by H&SD, which was reflected in recovery of MMP, morphology of nuclei, rate of apoptotic cells and inhibition of cleaved Caspase-3. The results of western blot demonstrated that phosphorylation of janus kinase (JAK) 1 and signal transducer and activator of transcription (STAT) 3 was inhibited by H&SD treatment, which was upregulated by LIF administration. JAK1-specific inhibitor GLPG0634 or STAT3-specific inhibitor S3I-201 eliminated the protective effects of LIF on the apoptosis of BMSCs. CONCLUSION These data indicated that LIF played a protective role in apoptosis of BMSCs induced by ischemia via activating JAK1/STAT3 signaling pathway.
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Affiliation(s)
- Xiaoqi Wang
- Department of Stomatology, The First Affiliated Hospital of Soochow UniversitySuzhou, Jiangsu, China
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan UniversityWuhan, Hubei, China
| | - Jing Huang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan UniversityWuhan, Hubei, China
| | - Yanjing Ou
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan UniversityWuhan, Hubei, China
- Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Lab of Fujian College and University, School and Hospital of Stomatology, Fujian Medical UniversityFuzhou, Fujian, China
| | - Shuang Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan UniversityWuhan, Hubei, China
| | - Le Fan
- Department of Prosthodontics, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen UniversityGuangzhou, Guangdong, China
| | - Youde Liang
- Yantian Hospital, Southern University of Science and TechnologyShenzhen, Guangdong, China
| | - Yining Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan UniversityWuhan, Hubei, China
| | - Yi Zhou
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan UniversityWuhan, Hubei, China
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Sun A, Chen X, Xu M, Zhang X, Chen X. Feasibility study on the application of a spiking neural network in myoelectric control systems. Front Neurosci 2023; 17:1174760. [PMID: 37378016 PMCID: PMC10291076 DOI: 10.3389/fnins.2023.1174760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 05/17/2023] [Indexed: 06/29/2023] Open
Abstract
In recent years, the effectiveness of a spiking neural network (SNN) for Electromyography (EMG) pattern recognition has been validated, but there is a lack of comprehensive consideration of the problems of heavy training burden, poor robustness, and high energy consumption in the application of actual myoelectric control systems. In order to explore the feasibility of the application of SNN in actual myoelectric control systems, this paper investigated an EMG pattern recognition scheme based on SNN. To alleviate the differences in EMG distribution caused by electrode shifts and individual differences, the adaptive threshold encoding was applied to gesture sample encoding. To improve the feature extraction ability of SNN, the leaky-integrate-and-fire (LIF) neuron that combines voltage-current effect was adopted as a spike neuron model. To balance recognition accuracy and power consumption, experiments were designed to determine encoding parameter and LIF neuron release threshold. By conducting the gesture recognition experiments considering different training test ratios, electrode shifts, and user independences on the nine-gesture high-density and low-density EMG datasets respectively, the advantages of the proposed SNN-based scheme have been verified. Compared with a Convolutional Neural Network (CNN), Long Short-Term Memory Network (LSTM) and Linear Discriminant Analysis (LDA), SNN can effectively reduce the number of repetitions in the training set, and its power consumption was reduced by 1-2 orders of magnitude. For the high-density and low-density EMG datasets, SNN improved the overall average accuracies by about (0.99 ~ 14.91%) under different training test ratios. For the high-density EMG dataset, the accuracy of SNN was improved by (0.94 ~ 13.76%) under electrode-shift condition and (3.81 ~ 18.95%) in user-independent case. The advantages of SNN in alleviating the user training burden, reducing power consumption, and improving robustness are of great significance for the implementation of user-friendly low-power myoelectric control systems.
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Compton SE, Kitchen-Goosen SM, DeCamp LM, Lau KH, Mabvakure B, Vos M, Williams KS, Wong KK, Shi X, Rothbart SB, Krawczyk CM, Jones RG. LKB1 controls inflammatory potential through CRTC2-dependent histone acetylation. Mol Cell 2023:S1097-2765(23)00288-5. [PMID: 37172591 DOI: 10.1016/j.molcel.2023.04.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 03/17/2023] [Accepted: 04/18/2023] [Indexed: 05/15/2023]
Abstract
Deregulated inflammation is a critical feature driving the progression of tumors harboring mutations in the liver kinase B1 (LKB1), yet the mechanisms linking LKB1 mutations to deregulated inflammation remain undefined. Here, we identify deregulated signaling by CREB-regulated transcription coactivator 2 (CRTC2) as an epigenetic driver of inflammatory potential downstream of LKB1 loss. We demonstrate that LKB1 mutations sensitize both transformed and non-transformed cells to diverse inflammatory stimuli, promoting heightened cytokine and chemokine production. LKB1 loss triggers elevated CRTC2-CREB signaling downstream of the salt-inducible kinases (SIKs), increasing inflammatory gene expression in LKB1-deficient cells. Mechanistically, CRTC2 cooperates with the histone acetyltransferases CBP/p300 to deposit histone acetylation marks associated with active transcription (i.e., H3K27ac) at inflammatory gene loci, promoting cytokine expression. Together, our data reveal a previously undefined anti-inflammatory program, regulated by LKB1 and reinforced through CRTC2-dependent histone modification signaling, that links metabolic and epigenetic states to cell-intrinsic inflammatory potential.
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Affiliation(s)
- Shelby E Compton
- Department of Metabolism and Nutritional Programming, Van Andel Institute, Grand Rapids, MI, USA
| | - Susan M Kitchen-Goosen
- Department of Metabolism and Nutritional Programming, Van Andel Institute, Grand Rapids, MI, USA; Metabolism and Nutrition (MeNu) Program, Van Andel Institute, Grand Rapids, MI, USA
| | - Lisa M DeCamp
- Department of Metabolism and Nutritional Programming, Van Andel Institute, Grand Rapids, MI, USA; Metabolism and Nutrition (MeNu) Program, Van Andel Institute, Grand Rapids, MI, USA
| | - Kin H Lau
- Bioinformatics and Biostatistics Core, Van Andel Institute, Grand Rapids, MI, USA
| | - Batsirai Mabvakure
- Department of Metabolism and Nutritional Programming, Van Andel Institute, Grand Rapids, MI, USA
| | - Matthew Vos
- Department of Metabolism and Nutritional Programming, Van Andel Institute, Grand Rapids, MI, USA; Metabolism and Nutrition (MeNu) Program, Van Andel Institute, Grand Rapids, MI, USA
| | - Kelsey S Williams
- Department of Metabolism and Nutritional Programming, Van Andel Institute, Grand Rapids, MI, USA; Metabolism and Nutrition (MeNu) Program, Van Andel Institute, Grand Rapids, MI, USA
| | - Kwok-Kin Wong
- Laura and Isaac Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA
| | - Xiaobing Shi
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI, USA
| | - Scott B Rothbart
- Department of Epigenetics, Van Andel Institute, Grand Rapids, MI, USA
| | - Connie M Krawczyk
- Department of Metabolism and Nutritional Programming, Van Andel Institute, Grand Rapids, MI, USA; Metabolism and Nutrition (MeNu) Program, Van Andel Institute, Grand Rapids, MI, USA
| | - Russell G Jones
- Department of Metabolism and Nutritional Programming, Van Andel Institute, Grand Rapids, MI, USA; Metabolism and Nutrition (MeNu) Program, Van Andel Institute, Grand Rapids, MI, USA.
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Ali R, Iqbal MUN, Rehman R, Khan TA. Interplay of "leukemia inhibitory factor receptor gene" (rs3099124) polymorphism, leukemia inhibitory factor and ovarian steroids with unexplained infertility. Nucleosides Nucleotides Nucleic Acids 2023:1-13. [PMID: 36924393 DOI: 10.1080/15257770.2023.2188911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
OBJECTIVE OF THE STUDY To explore the association of leukemia inhibitory factor receptor (LIFR) gene variant rs3099124, ovarian steroids, and leukemia inhibitory factor with unexplained infertility in Pakistani females. METHODOLOGY A case-control investigation in which eighty-one (81) females with unexplained infertility and one hundred and sixty-two (162) fertile counterparts (age and body mass index compared) were recruited between October 2016 and 2018. Ten milliliters of venous blood was collected from all participants. "Genomic DNA" was taken out from lymphocytes in peripheral blood samples. "Tetra Amplification Refractory Mutation System Polymerase Chain Reaction (T-ARMS-PCR)" was constructed through software "Primer-I". Amplification was carried out by "T-ARMS-PCR" followed by subsequent sequencing for confirmation and extensive consonance. Estradiol, Progesterone and Leukemia Inhibitory Factor (LIF) were measured in serum by ELISA. RESULTS Statistically significant difference was noticed in genotype frequency in "LIFR-gene variant; rs3099124" (χ2 = 28.222, P value < 0.01) between research participants. Although, rs "3099124" "AA" (OR = 0.000; 95%CI = 0-0) and "GA" genotypes (OR = 0.525; 95%CI = 0.226-1.22) showed non-significant safety/protection against unexplained infertility yet minor/risk allele "A" frequency was greater in women with unexplained infertility suggesting a possible explanation of implantation failure. LIF concentration varied between fertile and infertile groups (χ2 = 9.857, P < 0.05) revealing significant threat of unexplained infertility in women with decreased LIF concentration (OR = 2.316, 95%CI = 1.214-4.416). Progesterone was significantly related to unexplained infertility in both study groups (χ2 = 20.347, P < 0.05). High progesterone reduced the possibility of unexplained infertility (OR = 0.306; 95% CI = 0.166-0.567). CONCLUSION LIFR gene variation (rs3099124) and reduced LIF secretion may cause implantation failure in women with unexplained infertility.
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Affiliation(s)
- Rabiya Ali
- Department of Physiology, Karachi Institute of Medical Sciences (KIMS), CMH, Malir Cantt., Karachi, Pakistan
| | | | - Rehana Rehman
- Department of Biological and Biomedical Sciences, Aga Khan University, Karachi, Pakistan
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Chen X, Qi D, Fan S, He Y, Jing H, Wang D. Interferon regulatory factor 1 (IRF1) inhibits lung endothelial regeneration following inflammation-induced acute lung injury. Clin Sci (Lond) 2023; 137:367-383. [PMID: 36857175 PMCID: PMC10011169 DOI: 10.1042/cs20220876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 02/27/2023] [Accepted: 03/01/2023] [Indexed: 03/02/2023]
Abstract
BACKGROUND Acute respiratory distress syndrome (ARDS) is a respiratory condition caused by severe endothelial barrier dysfunction within the lung. In ARDS, excessive inflammation, tissue edema, and immune cell influx prevents endothelial cell regeneration that is crucial in repairing the endothelial barrier. However, little is known about the molecular mechanism that underpin endothelial cell regeneration in ARDS. METHODS R-based bioinformatics tools were used to analyze microarray-derived transcription profiles in human lung microvascular endothelial cells (HLMVECs) subjected to non-treatment or lipopolysaccharide (LPS) exposure. We generated endothelial cell-specific interferon regulatory factor 1 (Irf1) knockout (Irf1EC-/-) and Irf1fl/fl control mice for use in an endotoxemic murine model of acute lung injury (ALI). In vitro studies (qPCR, immunoblotting, and ChIP-qPCR) were conducted in mouse lung endothelial cells (MLECs) and HLMVECs. Dual-luciferase promoter reporter assays were performed in HLMVECs. RESULTS Bioinformatics analyses identified IRF1 as a key up-regulated gene in HLMVECs post-LPS exposure. Endothelial-specific knockout of Irf1 in ALI mice resulted in enhanced regeneration of lung endothelium, while liposomal delivery of endothelial-specific Irf1 to wild-type ALI mice inhibited lung endothelial regeneration in a leukemia inhibitory factor (Lif)-dependent manner. Mechanistically, we demonstrated that LPS-induced Stat1Ser727 phosphorylation promotes Irf1 transactivation, resulting in downstream up-regulation of Lif that inhibits endothelial cell proliferation. CONCLUSIONS These results demonstrate the existence of a p-Stat1Ser727-Irf1-Lif axis that inhibits lung endothelial cell regeneration post-LPS injury. Thus, direct inhibition of IRF1 or LIF may be a promising strategy for enhancing endothelial cell regeneration and improving clinical outcomes in ARDS patients.
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Affiliation(s)
- Xiaorui Chen
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
- Correspondence: Xiaorui Chen () or Daoxin Wang ()
| | - Di Qi
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Shulei Fan
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Yirui He
- Department of Endocrinology, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Hekun Jing
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Daoxin Wang
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
- Correspondence: Xiaorui Chen () or Daoxin Wang ()
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Dokuzeylül Güngör N, Önal M, Madenli AA, Ağar M. Surgical removal of FIGO type 0 and 1 fibroids ameliorates the expression of endometrial proinflammatory transcription factors and receptivity modulators. Fertil Steril 2023; 119:504-513. [PMID: 36473610 DOI: 10.1016/j.fertnstert.2022.11.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 11/24/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To reveal whether hysteroscopic removal of the International Federation of Gynecology and Obstetrics (FIGO) types 0 and 1 fibroids makes any changes in the expression of homeobox genes (HOXA10, HOXA11), leukemia inhibitory factor, and nuclear factor-kappa B (NF-kB). DESIGN A case-control study. SETTING University-based in vitro fertilisation center. PATIENT(S) This study consisted of a total of 29 participants, 21 with FIGO types 0 and 1 fibroids and 8 with normal uterine cavity without fibroids. INTERVENTION(S) Patients in FIGO types 0 and 1 fibroids group underwent hysteroscopic myomectomy. The patients in the control group underwent laparoscopic tubal ligation. Endometrial cells were collected by flushing method from all participants before and 3 months after myomectomy. Real-time polymerase chain reaction was used to detect HOXA10, HOXA11, and LIF mRNA expressions in endometrial flushing samples. The relative expressions of homeobox and LIF mRNA were calculated with comparative ΔCt method. Endometrial NF-kB concentration was measured quantitatively by enzyme-linked immunosorbent assay. MAIN OUTCOME MEASURE(S) To compare endometrial HOXA10, HOXA11, and LIF mRNA expressions as well as endometrial NF-kB concentration before and after myomectomy. RESULT(S) Premyomectomy NF-kB levels of type 0 (4.22 ± 1.02 ng/mL) and type 1 fibroid (6.44 ± 2.30 ng/mL) were significantly higher than the values of control group (0.54 ± 0.10 ng/mL). Surgical removal of type 0 and 1 fibroids resulted in a significant decrease in endometrial NF-kB levels (1.33 ± 0.02 ng/mL vs 1.65 ± 0.27 ng/mL, respectively). In type 0 fibroid group, after myomectomy, there was a 11.1-fold increase in HOXA10 mRNA, 4.23-fold in HOXA11 mRNA, and 7.63-fold in LIF mRNA. In the type 1 fibroid group, after myomectomy, there was a 16.3-fold increase in HOXA10 mRNA, 8.34-fold in HOXA11 mRNA, and 9.38-fold in LIF mRNA. A nonsignificant change was detected in homeobox and LIF mRNA after tubal sterilization. A negative and significant correlation was found between endometrial NF-kB and HOXA10 (r=-0.67), HOXA11 (r=-0.71) and LIF (r=-0.54). CONCLUSION(S) High proinflammatory NF-kB concentration and low homeobox and LIF mRNA expressions were detected in the presence of type 0 or 1 fibroids that returned to normal values after hysteroscopic myomectomy.
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Affiliation(s)
- Nur Dokuzeylül Güngör
- Department of Obstetrics and Gynecology, Bahcesehir University Goztepe Medicalpark Hospital, Istanbul, Turkey.
| | - Murat Önal
- Department of Obstetrics and Gynecology, Gynolife Hospital, Nicosia, Cyprus
| | - Asena Ayar Madenli
- Department of Obstetrics and Gynecology, Liv Hospital Vadistanbul, Istanbul, Turkey
| | - Mehmet Ağar
- Obstetrics and Gynecology, Private Office, Sanliurfa, Turkey
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Liu YR, Li WC, Hu JH, Li QQ, Zhang YP, Lu KH, Xu HY, Liang XW, Lu YQ, Yang XG. Comparison of the effects of buffalo LIF and mouse LIF on the in vitro culture of buffalo spermatogonia. Cell Biol Int 2023; 47:981-989. [PMID: 36691872 DOI: 10.1002/cbin.11994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 10/19/2022] [Accepted: 01/14/2023] [Indexed: 01/25/2023]
Abstract
Leukemia inhibitory factor (LIF) is an important growth factor that supports the culture and maintenance of spermatogonial stem cells (SSCs) by suppressing spontaneous differentiation. Different LIF sequences may lead to differences in function. The protein sequences of buffalo LIF and mouse LIF differed by 65.5% according to MEGA software analysis. The PB-LIF-GFP-Puro vector was constructed, and the CHO-K1 cell line was established. The final LIF protein concentration in the CHO-K1 cell culture medium was approximately 4.268 ng/mL. Here, we report that buffalo LIF effectively maintains the self-renewal of buffalo spermatogonia during culture. Buffalo spermatogonia were cultured in conditioned medium containing no LIF (0 ng/mL), mouse LIF (1 ng/mL), mouse LIF (10 ng/mL), or buffalo LIF (1 ng/mL). Furthermore, the effects of mouse LIF and buffalo LIF culture on the maintenance of buffalo spermatogonia were determined by analyzing cell colony formation, quantitative real-time polymerase chain reaction, cell immunofluorescence, and cell counting. The buffalo LIF (1 ng/mL) group showed similar maintenance of the proliferation of buffalo spermatogonia to that in the mouse LIF (10 ng/mL) group. These results demonstrated that the proliferation of buffalo spermatogonia can be maintained in vitro by adding a low dose of buffalo LIF. This study provides a foundation for the further optimization of in vitro buffalo SSC culture systems.
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Affiliation(s)
- Ya Ru Liu
- State Key Laboratory for Conservation and Utilisation of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China.,College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, China
| | - Wang Chang Li
- State Key Laboratory for Conservation and Utilisation of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China.,College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, China
| | - Jia Hao Hu
- State Key Laboratory for Conservation and Utilisation of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China.,College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, China
| | - Qi Qi Li
- State Key Laboratory for Conservation and Utilisation of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China.,College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, China
| | - Ya Ping Zhang
- State Key Laboratory for Conservation and Utilisation of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China.,College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, China
| | - Ke Huan Lu
- State Key Laboratory for Conservation and Utilisation of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China.,College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, China
| | - Hui Yan Xu
- State Key Laboratory for Conservation and Utilisation of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China.,College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, China
| | - Xing Wei Liang
- State Key Laboratory for Conservation and Utilisation of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China.,College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, China
| | - Yang Qing Lu
- State Key Laboratory for Conservation and Utilisation of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China.,College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, China
| | - Xiao Gan Yang
- State Key Laboratory for Conservation and Utilisation of Subtropical Agro-bioresources, Guangxi University, Nanning, Guangxi, China.,College of Animal Science & Technology, Guangxi University, Nanning, Guangxi, China
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30
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Xu Y, Perera S, Bethi Y, Afshar S, van Schaik A. Event-driven spectrotemporal feature extraction and classification using a silicon cochlea model. Front Neurosci 2023; 17:1125210. [PMID: 37144092 PMCID: PMC10151790 DOI: 10.3389/fnins.2023.1125210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 03/27/2023] [Indexed: 05/06/2023] Open
Abstract
This paper presents a reconfigurable digital implementation of an event-based binaural cochlear system on a Field Programmable Gate Array (FPGA). It consists of a pair of the Cascade of Asymmetric Resonators with Fast Acting Compression (CAR-FAC) cochlea models and leaky integrate-and-fire (LIF) neurons. Additionally, we propose an event-driven SpectroTemporal Receptive Field (STRF) Feature Extraction using Adaptive Selection Thresholds (FEAST). It is tested on the TIDIGTIS benchmark and compared with current event-based auditory signal processing approaches and neural networks.
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31
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Ray S, Luharuka S. Targeting the gp130_D5 domain through pharmacophore modelling and structure-based virtual screening using natural plant products: A detailed molecular dynamics study for development of novel anti-cancer therapeutics. J Mol Graph Model 2022; 117:108290. [PMID: 36029729 DOI: 10.1016/j.jmgm.2022.108290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 07/24/2022] [Accepted: 08/01/2022] [Indexed: 01/14/2023]
Abstract
An overexpression and upregulation has been observed in the activity of LIF in various cancers which leads to the worsening prognosis of numerous patients. Domain D5 of gp130 forms a crucial part of the downstream signalling pathway necessary for the activity of this cytokine. Due to the absence of any known inhibitors or previous studies conducted on this domain, this domain presents itself as a novel potential therapeutic target for the development of anti-cancer drugs. Here, an attempt has been made to discover one such potential lead drug candidate via the application of various computer-aided drug designing techniques. A natural plant products library was used along with known inhibitors of the STAT3 signalling pathway through which LIF exerts its activity. The ligand displaying the highest interaction with the target, a good docking score, and an optimal bioavailability was chosen. This ligand- ZINC02131250 forms a very strong complex with the target domain thatremains stable throughout the simulation period. Binding of the ligand to the target also results in an overall decrease in the domain's flexibility, free energy, and motion. Thus, this ligand can be taken for further testing using bioassays and then be used as a viable novel treatment for many cancer types.
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Affiliation(s)
- Sujay Ray
- Amity Institute of Biotechnology, Amity University, Kolkata, India.
| | - Shreya Luharuka
- Amity Institute of Biotechnology, Amity University, Kolkata, India
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Cyran L, Serfling J, Kirschner L, Raifer H, Lohoff M, Hermanns HM, Kerstan A, Bodem J, Lutz MB. Flt3L, LIF, and IL-10 combination promotes the selective in vitro development of ESAM low cDC2B from murine bone marrow. Eur J Immunol 2022; 52:1946-1960. [PMID: 35357005 DOI: 10.1002/eji.202149663] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 02/12/2022] [Accepted: 03/29/2022] [Indexed: 01/05/2023]
Abstract
The development of two conventional dendritic cells (DC) subsets (cDC1 and cDC2) and the plasmacytoid DC (pDC) in vivo and in cultures of bone marrow (BM) cells is mediated by the growth factor Flt3L. However, little is known about the factors that direct the development of the individual DC subsets. Here, we describe the selective in vitro generation of murine ESAMlow CD103- XCR1- CD172a+ CD11b+ cDC2 from BM by treatment with a combination of Flt3L, LIF, and IL-10 (collectively named as FL10). FL10 promotes common dendritic cell progenitors (CDP) proliferation in the cultures, similar to Flt3L and CDP sorted and cultured in FL10 generate exclusively cDC2. These cDC2 express the transcription factors Irf4, Klf4, and Notch2, and their growth is reduced using BM from Irf4-/- mice, but the expression of Batf3 and Tcf4 is low. Functionally they respond to TLR3, TLR4, and TLR9 signals by upregulation of the surface maturation markers MHC II, CD80, CD86, and CD40, while they poorly secrete proinflammatory cytokines. Peptide presentation to TCR transgenic OT-II cells induced proliferation and IFN-γ production that was similar to GM-CSF-generated BM-DC and higher than Flt3L-generated DC. Together, our data support that FL10 culture of BM cells selectively promotes CDP-derived ESAMlow cDC2 (cDC2B) development and survival in vitro.
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Affiliation(s)
- Laura Cyran
- Institute for Virology and Immunobiology, University of Würzburg, Würzburg, Germany
| | - Julia Serfling
- Institute for Virology and Immunobiology, University of Würzburg, Würzburg, Germany
| | - Luisa Kirschner
- Institute for Virology and Immunobiology, University of Würzburg, Würzburg, Germany
| | - Hartmann Raifer
- Institute of Medical Microbiology and Hygiene, University of Marburg, Marburg, Germany
| | - Michael Lohoff
- Institute of Medical Microbiology and Hygiene, University of Marburg, Marburg, Germany
| | - Heike M Hermanns
- Department of Internal Medicine II, Hepatology Research Laboratory, University Hospital Würzburg, Würzburg, Germany
| | - Andreas Kerstan
- Department of Dermatology, Venereology, and Allergology, University Hospital Würzburg, Würzburg, Germany
| | - Jochen Bodem
- Institute for Virology and Immunobiology, University of Würzburg, Würzburg, Germany
| | - Manfred B Lutz
- Institute for Virology and Immunobiology, University of Würzburg, Würzburg, Germany
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Xu S, Yang X, Chen Q, Liu Z, Chen Y, Yao X, Xiao A, Tian J, Xie L, Zhou M, Hu Z, Zhu F, Xu X, Hou F, Nie J. Leukemia inhibitory factor is a therapeutic target for renal interstitial fibrosis. EBioMedicine 2022; 86:104312. [PMID: 36335669 PMCID: PMC9646860 DOI: 10.1016/j.ebiom.2022.104312] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 09/28/2022] [Accepted: 10/04/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND The role of the IL6 family members in organ fibrosis, including renal interstitial fibrosis (TIF), has been widely explored. However, few studies have ever simultaneously examined them in the same cohort of patients. Besides, the role of leukemia inhibitory factor (LIF) in TIF remains unclear. METHODS RNA-seq data of kidney biopsies from chronic kidney disease (CKD) patients, in both public databases and our assays, were used to analyze transcript levels of IL6 family members. Two TIF mouse models, the unilateral ureteral obstruction (UUO) and the ischemia reperfusion injury (IRI), were employed to validate the finding. To assess the role of LIF in vivo, short hairpin RNA, lenti-GFP-LIF was used to knockdown LIF receptor (LIFR), overexpress LIF, respectively. LIF-neutralizing antibody was used in therapeutic studies. Whether urinary LIF could be used as a promising predictor for CKD progression was investigated in a prospective observation patient cohort. FINDINGS Among IL6 family members, LIF is the most upregulated one in both human and mouse renal fibrotic lesions. The mRNA level of LIF negatively correlated with eGFR with the strongest correlation and the smallest P value. Baseline urinary concentrations of LIF in CKD patients predict the risk of CKD progression to end-stage kidney disease by Kaplan-Meier analysis. In mouse TIF models, knockdown of LIFR alleviated TIF; conversely, overexpressing LIF exacerbated TIF. Most encouragingly, visible efficacy against TIF was observed by administering LIF-neutralizing antibodies to mice. Mechanistically, LIF-LIFR-EGR1 axis and Sonic Hedgehog signaling formed a vicious cycle between fibroblasts and proximal tubular cells to augment LIF expression and promote the pro-fibrotic response via ERK and STAT3 activation. INTERPRETATION This study discovered that LIF is a noninvasive biomarker for the progression of CKD and a potential therapeutic target of TIF. FUNDINGS Stated in the Acknowledgements section of the manuscript.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Fanfan Hou
- Corresponding author. Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Jing Nie
- Corresponding author. Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
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Zhang B, Feng J. Mouse embryonic stem cells require multiple amino acids. Exp Biol Med (Maywood) 2022; 247:1379-1387. [PMID: 35611795 PMCID: PMC9442457 DOI: 10.1177/15353702221096059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 04/05/2022] [Indexed: 02/03/2023] Open
Abstract
Previous studies suggest that mouse embryonic stem cells (mESCs) have a unique requirement for threonine when cultured in serum and leukemia inhibitory factor (LIF). Here, we replicated the experiments and found that the growth of mESCs (E14 and AB2.2) in serum/LIF was significantly attenuated by the individual absence of multiple amino acids. When mESCs were maintained in naïve pluripotency by the MEK inhibitor, GSK3 inhibitor (2i), and LIF, their growth was significantly affected by the lack of any one of the nine essential amino acids or some non-essential amino acids. There was no unique requirement for threonine in both culture conditions. This study shows that, like many other cells, mESCs do not have any special requirements for amino acids.
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Affiliation(s)
- Boyang Zhang
- Department of Physiology and Biophysics, The State
University of New York at Buffalo, Buffalo, NY 14203, USA
| | - Jian Feng
- Department of Physiology and Biophysics, The State
University of New York at Buffalo, Buffalo, NY 14203, USA
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Yao J, Ma F, Zhang L, Zhu C, Jumabay M, Yao Z, Wang L, Cai X, Zhang D, Qiao X, Shivkumar K, Pellegrini M, Yao Y, Wu X, Boström KI. Single-Cell RNA-Seq Identifies Dynamic Cardiac Transition Program from Adipose Derived Cells Induced by Leukemia Inhibitory Factor. Stem Cells 2022; 40:932-948. [PMID: 35896368 PMCID: PMC9585902 DOI: 10.1093/stmcls/sxac048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 06/22/2022] [Indexed: 11/13/2022]
Abstract
Adipose-derived cells (ADCs) from white adipose tissue (WAT) are promising stem cell candidates because of their large regenerative reserves and the potential for cardiac regeneration. However, given the heterogeneity of ADC and its unsolved mechanisms of cardiac acquisition, ADC-cardiac transition efficiency remains low. In this study, we explored the heterogeneity of ADCs and the cellular kinetics of 39,432 single-cell transcriptomes along the leukemia inhibitory factor (LIF) induced ADC-cardiac transition. We identified distinct ADC subpopulations that reacted differentially to LIF when entering the cardiomyogenic program, further demonstrating that ADC-myogenesis is time-dependent and initiates from transient changes in nuclear factor erythroid 2-related factor 2 (Nrf2) signaling. At later stages, pseudotime analysis of ADCs navigated a trajectory with two branches corresponding to activated myofibroblast or cardiomyocyte-like cells. Our findings offer a high-resolution dissection of ADC heterogeneity and cell fate during ADC-cardiac transition, thus providing new insights into potential cardiac stem cells.
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Affiliation(s)
- Jiayi Yao
- Division of Cardiology, David Geffen School of Medicine at UCLA
| | - Feiyang Ma
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA.,Chongqing International Institute for Immunology, Chongqing 401338, China
| | - Li Zhang
- Division of Cardiology, David Geffen School of Medicine at UCLA
| | - Ching Zhu
- Division of Cardiology, David Geffen School of Medicine at UCLA
| | - Medet Jumabay
- Division of Allergy, Immunology Center for Immunity, Infection, and Inflammation Pediatrics, Dept of Medicine, University of California, San Diego, San Diego, CA
| | - Zehao Yao
- Peking Union Medical College, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, China
| | - Lumin Wang
- Institute of Precision Medicine, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xinjiang Cai
- Division of Cardiology, David Geffen School of Medicine at UCLA
| | - Daoqin Zhang
- Division of Cardiology, David Geffen School of Medicine at UCLA
| | - Xiaojing Qiao
- Division of Cardiology, David Geffen School of Medicine at UCLA
| | | | - Matteo Pellegrini
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA.,Dept of Molecular, Cell and Developmental Biology, University of California, Los Angeles, CA
| | - Yucheng Yao
- Division of Cardiology, David Geffen School of Medicine at UCLA
| | - Xiuju Wu
- Division of Cardiology, David Geffen School of Medicine at UCLA
| | - Kristina I Boström
- Division of Cardiology, David Geffen School of Medicine at UCLA.,Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA
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36
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Budde M, Engeln R. Crosstalk-Free Excitation Scheme for Quantitative OH Laser-Induced Fluorescence in Environments Containing Excited CO. Appl Spectrosc 2022; 76:851-855. [PMID: 35311380 PMCID: PMC9289968 DOI: 10.1177/00037028221088591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Spectral overlap in the single-photon laser-induced fluorescence between the 3064 Å system of OH and the third positive system of CO is detected in a highly-excited environment, namely, a CO2-H2O plasma. The overlap is distorting excitation and fluorescence spectra as well as fluorescence time decays of commonly used excitation transitions of OH. As a consequence, systematic errors are introduced into the determination of temperatures, gas compositions, and absolute number densities. The P1(2) transition is proposed to circumvent the distortion while still allowing for quantitative measurements due to the availability of non-radiative rate coefficients.
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Affiliation(s)
- Maik Budde
- Department of Applied Physics, Eindhoven University of Technology, Eindhoven, The Netherlands
- Instituto de Plasmas e Fusão
Nuclear, Instituto Superior Técnico, Universidade de Lisboa, Portugal
| | - Richard Engeln
- Department of Applied Physics, Eindhoven University of Technology, Eindhoven, The Netherlands
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37
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Halder S, Parte S, Kshirsagar P, Muniyan S, Nair HB, Batra SK, Seshacharyulu P. The Pleiotropic role, functions and targeted therapies of LIF/LIFR axis in cancer: Old spectacles with new insights. Biochim Biophys Acta Rev Cancer 2022; 1877:188737. [PMID: 35680099 PMCID: PMC9793423 DOI: 10.1016/j.bbcan.2022.188737] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 05/09/2022] [Accepted: 05/28/2022] [Indexed: 12/30/2022]
Abstract
The dysregulation of leukemia inhibitory factor (LIF) and its cognate receptor (LIFR) has been associated with multiple cancer initiation, progression, and metastasis. LIF plays a significant tumor-promoting role in cancer, while LIFR functions as a tumor promoter and suppressor. Epithelial and stromal cells secrete LIF via autocrine and paracrine signaling mechanism(s) that bind with LIFR and subsequently with co-receptor glycoprotein 130 (gp130) to activate JAK/STAT1/3, PI3K/AKT, mTORC1/p70s6K, Hippo/YAP, and MAPK signaling pathways. Clinically, activating the LIF/LIFR axis is associated with poor survival and anti-cancer therapy resistance. This review article provides an overview of the structure and ligands of LIFR, LIF/LIFR signaling in developmental biology, stem cells, cancer stem cells, genetics and epigenetics of LIFR, LIFR regulation by long non-coding RNAs and miRNAs, and LIF/LIFR signaling in cancers. Finally, neutralizing antibodies and small molecule inhibitors preferentially blocking LIF interaction with LIFR and antagonists against LIFR under pre-clinical and early-phase pre-clinical trials were discussed.
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Affiliation(s)
- Sushanta Halder
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198-5870, USA
| | - Seema Parte
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198-5870, USA
| | - Prakash Kshirsagar
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198-5870, USA
| | - Sakthivel Muniyan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198-5870, USA
| | | | - Surinder K. Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198-5870, USA,Eppley Institute for Research in Cancer and Allied Diseases, USA,Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198-5870, USA,Corresponding authors at: Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198-5870, USA. (S.K. Batra), (P. Seshacharyulu)
| | - Parthasarathy Seshacharyulu
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198-5870, USA,Eppley Institute for Research in Cancer and Allied Diseases, USA,Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198-5870, USA,Corresponding authors at: Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198-5870, USA. (S.K. Batra), (P. Seshacharyulu)
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Viswanadhapalli S, Dileep KV, Zhang KY, Nair HB, Vadlamudi RK. Targeting LIF/LIFR signaling in cancer. Genes Dis 2022; 9:973-980. [PMID: 35685476 PMCID: PMC9170604 DOI: 10.1016/j.gendis.2021.04.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 04/05/2021] [Accepted: 04/09/2021] [Indexed: 12/19/2022] Open
Abstract
Leukemia inhibitory factor (LIF), and its receptor (LIFR), are commonly over-expressed in many solid cancers and recent studies have implicated LIF/LIFR axis as a promising clinical target for cancer therapy. LIF/LIFR activate oncogenic signaling pathways including JAK/STAT3 as immediate effectors and MAPK, AKT, mTOR further downstream. LIF/LIFR signaling plays a key role in tumor growth, progression, metastasis, stemness and therapy resistance. Many solid cancers show overexpression of LIF and autocrine stimulation of the LIF/LIFR axis; these are associated with a poorer relapse-free survival. LIF/LIFR signaling also plays a role in modulating multiple immune cell types present in tumor micro environment (TME). Recently, two targeted agents that target LIF (humanized anti-LIF antibody, MSC-1) and LIFR inhibitor (EC359) were under development. Both agents showed effectivity in preclinical models and clinical trials using MSC-1 antibody are in progress. This article reviews the significance of LIF/LIFR pathways and inhibitors that disrupt this process for the treatment of cancer.
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Key Words
- AKT, protein kinase B
- HER2, human epidermal growth factor receptor 2
- JAK, Janus kinase
- LIF
- LIF receptor, (LIFR)
- LIFR
- LIFR inhibitor
- STAT3
- Targeted therapy
- breast cancer, (BCa)
- cancer stem cells, (CSCs)
- cardiotrophin 1, (CTF1)
- ciliary neurotrophic factor, (CNTF)
- colorectal cancer, (CRC)
- endometrial cancer, (ECa)
- humanized Anti-LIF antibody, (MSC-1)
- leukemia inhibitory factor, (LIF)
- mammalian target of rapamycin, (mTOR)
- mitogen activated protein kinase, (MAPK)
- oncostatin M, (OSM)
- ovarian cancer, (OCa)
- pancreatic ductal adenocarcinoma, (PDAC)
- programmed death-ligand 1, (PD-L1)
- prostate cancer, (PCa)
- signal transducer and activator of transcription 3, (STAT3)
- triple negative breast cancer, (TNBC)
- tumor micro environment, (TME)
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Affiliation(s)
- Suryavathi Viswanadhapalli
- Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, TX 78229, USA
- Mays Cancer Center, University of Texas Health San Antonio, San Antonio, TX 78229, USA
| | - Kalarickal V. Dileep
- Laboratory for Structural Bioinformatics, Center for Biosystems Dynamics Research, RIKEN, Yokohama, Kanagawa 230-0045, Japan
| | - Kam Y.J. Zhang
- Laboratory for Structural Bioinformatics, Center for Biosystems Dynamics Research, RIKEN, Yokohama, Kanagawa 230-0045, Japan
| | | | - Ratna K. Vadlamudi
- Department of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, TX 78229, USA
- Mays Cancer Center, University of Texas Health San Antonio, San Antonio, TX 78229, USA
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Abstract
The different states of mouse pluripotency described so far rely on a combination of molecular, phenotypic, and functional analysis. Embryonic Stem cells (ESCs) aggregated in suspension culture are able to form 3D embryo-like structures called gastruloids that mimic features of the gastrulation process. Recent findings indicate that gastruloid formation efficiency decreases as pluripotency progresses from naïve to primed state, and suggest that gastruloids formation may represent a functional assay to discriminate different states of mouse pluripotency.Here we describe a method to generate gastruloids from Epiblast-like cells (EpiLCs), which are transiently induced from ESCs by Activin A and bFGF and represent an intermediate state from naïve ESCs to primed Epiblast Stem cells.
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Affiliation(s)
- Federica Cermola
- Stem Cell Fate Laboratory, Institute of Genetics and Biophysics "A. Buzzati Traverso", CNR, Naples, Italy
| | - Eduardo J Patriarca
- Stem Cell Fate Laboratory, Institute of Genetics and Biophysics "A. Buzzati Traverso", CNR, Naples, Italy
| | - Gabriella Minchiotti
- Stem Cell Fate Laboratory, Institute of Genetics and Biophysics "A. Buzzati Traverso", CNR, Naples, Italy.
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40
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Zou C, Li X, Wei H, Wu S, Song J, Tang Z, Luo H, Lv X, Ai Y. Circular GOLPH3 RNA exerts oncogenic effects in vitro by regulating the miRNA-1299/ LIF axis in oral squamous cell carcinoma. Bioengineered 2022; 13:11012-11025. [PMID: 35481460 PMCID: PMC9208457 DOI: 10.1080/21655979.2022.2067288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Circular RNAs, which are a novel subclass of noncoding RNAs, are reported to be involved in various biological processes. Aberrant expression of circular RNAs may promote cancer progression. The function of circular GOLPH3 RNA (circGOLPH3) in oral squamous cell carcinoma (OSCC) is unclear. In this study, the circGOLPH3 levels in OSCC cell lines were determined using quantitative real-time polymerase chain reaction (qRT-PCR). Gain-of-function and loss-of-function experiments were performed to evaluate the roles of circGOLPH3 in OSCC. Cell counting kit 8, migration, and invasion assays were performed to determine the functions of circGOLPH3. The mechanism of circGOLPH3 in OSCC was investigated using qRT-PCR, western blotting, luciferase activity, and RNA pull-down analyses. Furthermore, the function of circGOLPH3 in vivo was evaluated. circGOLPH3 derived from GOLPH3 was mainly localized to the cytoplasm and exhibited high stability. The expression of circGOLPH3 was upregulated in OSCC cells. circGOLPH3 promoted the growth of OSCC in vitro and in vivo. Additionally, circGOLPH3 upregulated OSCC cell migration and invasion. Mechanistically, circGOLPH3 functioned as a microRNA sponge and downregulated miR-1299 expression. miR-1299 downregulated the expression of LIF by targeting its 3’-untranslated region. Inhibition of the circGOLPH3/miR-1299/LIF axis suppressed the growth, migration, and invasion of OSCC cells. These findings indicate that the circGOLPH3/miR-1299/LIF axis promotes OSCC cell growth, migration, and invasion and that this axis is a potential therapeutic target for OSCC.
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Affiliation(s)
- Chen Zou
- School of Medicine, Foshan Stomatological Hospital, Foshan University, Foshan, Guangdong, China
| | - Xia Li
- School of Medicine, Foshan Stomatological Hospital, Foshan University, Foshan, Guangdong, China
| | - Haigang Wei
- School of Medicine, Foshan Stomatological Hospital, Foshan University, Foshan, Guangdong, China
| | - Siyuan Wu
- School of Medicine, Foshan Stomatological Hospital, Foshan University, Foshan, Guangdong, China
| | - Jing Song
- School of Medicine, Foshan Stomatological Hospital, Foshan University, Foshan, Guangdong, China
| | - Zhe Tang
- School of Medicine, Foshan Stomatological Hospital, Foshan University, Foshan, Guangdong, China
| | - Hailing Luo
- School of Medicine, Foshan Stomatological Hospital, Foshan University, Foshan, Guangdong, China
| | - Xiaozhi Lv
- Department of Oral and Maxillofacial Surgery, NanFang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yilong Ai
- School of Medicine, Foshan Stomatological Hospital, Foshan University, Foshan, Guangdong, China
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41
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Iwamoto R, Koide M, Udagawa N, Kobayashi Y. Positive and Negative Regulators of Sclerostin Expression. Int J Mol Sci 2022; 23:ijms23094895. [PMID: 35563281 PMCID: PMC9102037 DOI: 10.3390/ijms23094895] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 04/27/2022] [Accepted: 04/27/2022] [Indexed: 02/04/2023] Open
Abstract
Sclerostin is secreted from osteocytes, binds to the Wnt co-receptor Lrp5/6, and affects the interaction between Wnt ligands and Lrp5/6, which inhibits Wnt/β-catenin signals and suppresses bone formation. Sclerostin plays an important role in the preservation of bone mass by functioning as a negative regulator of bone formation. A sclerostin deficiency causes sclerosteosis, which is characterized by an excess bone mass with enhanced bone formation in humans and mice. The expression of sclerostin is positively and negatively regulated by many factors, which also govern bone metabolism. Positive and negative regulators of sclerostin expression and their effects are introduced and discussed herein based on recent and previous findings, including our research.
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Affiliation(s)
- Rina Iwamoto
- Division of Hard Tissue Research, Institute for Oral Science, Matsumoto Dental University, 1780 Gobara Hiro-oka, Shiojiri 399-0781, Nagano, Japan; (R.I.); (M.K.)
| | - Masanori Koide
- Division of Hard Tissue Research, Institute for Oral Science, Matsumoto Dental University, 1780 Gobara Hiro-oka, Shiojiri 399-0781, Nagano, Japan; (R.I.); (M.K.)
| | - Nobuyuki Udagawa
- Department of Biochemistry, Matsumoto Dental University, 1780 Gobara Hiro-oka, Shiojiri 399-0781, Nagano, Japan;
| | - Yasuhiro Kobayashi
- Division of Hard Tissue Research, Institute for Oral Science, Matsumoto Dental University, 1780 Gobara Hiro-oka, Shiojiri 399-0781, Nagano, Japan; (R.I.); (M.K.)
- Correspondence: ; Tel.: +81-263-51-2238
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42
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Funatani S, Tsukamoto Y, Toriyama K. Temperature Measurement of Hot Airflow Using Ultra-Fine Thermo-Sensitive Fluorescent Wires. Sensors (Basel) 2022; 22:s22093175. [PMID: 35590864 PMCID: PMC9103216 DOI: 10.3390/s22093175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 04/17/2022] [Accepted: 04/19/2022] [Indexed: 11/16/2022]
Abstract
In this paper, we propose a temperature measurement method that uses ultrafine fluorescent wires to reduce the wire diameter to a much lesser extent than a thermocouple. This is possible because its structure is simple and any material can be used for the wire. Hence, ultrafine wires with a Reynolds number of less than 1.0 can be selected. Ultra-fine wires less than 50 µm in diameter were set in the test volume. The wire surfaces were coated with fluorescent paint. The test volume was illuminated using an ultraviolet light-emitting diode. The paint emits very tiny, orange-colored fluorescent light with an intensity that changes with the temperature of the atmosphere. The experimental results showed that the heating/cooling layers were well visualized and the temperature field was well analyzed.
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Yuan Y, Li K, Teng F, Wang W, Zhou B, Zhou X, Lin J, Ye X, Deng Y, Liu W, Luo S, Zhang P, Liu D, Zheng M, Li J, Lu Y, Zhang H. Leukemia inhibitory factor protects against liver steatosis in non-alcoholic fatty liver disease patients and obese mice. J Biol Chem 2022; 298:101946. [PMID: 35447114 PMCID: PMC9123280 DOI: 10.1016/j.jbc.2022.101946] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 03/26/2022] [Accepted: 03/28/2022] [Indexed: 01/27/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is one of the most common chronic liver diseases worldwide. However, the molecular mechanisms that promote dysregulation of hepatic triglyceride metabolism and lead to NAFLD are poorly understood, and effective treatments are limited. Leukemia inhibitory factor (LIF) is a member of the interleukin-6 cytokine family and has been shown to regulate a variety of physiological processes, although its role in hepatic triglyceride metabolism remains unknown. In the present study, we measured circulating LIF levels by ELISA in 214 patients with biopsy-diagnosed NAFLD as well as 314 normal control patients. We further investigated the potential role and mechanism of LIF on hepatic lipid metabolism in obese mice. We found that circulating LIF levels correlated with the severity of liver steatosis. Patients with ballooning, fibrosis, lobular inflammation, and abnormally elevated liver injury markers alanine transaminase and aspartate aminotransferase also had higher levels of serum LIF than control patients. Furthermore, animal studies showed that white adipose tissue–derived LIF could ameliorate liver steatosis through activation of hepatic LIF receptor signaling pathways. Together, our results suggested that targeting LIF-LIF receptor signaling might be a promising strategy for treating NAFLD.
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Affiliation(s)
- Youwen Yuan
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, China
| | - Kangli Li
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, China
| | - Fei Teng
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, China
| | - Weiwei Wang
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, China
| | - Bing Zhou
- The Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education, Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xuan Zhou
- The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Jiayang Lin
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, China
| | - Xueru Ye
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, China
| | - Yajuan Deng
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, China
| | - Wenhui Liu
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, China
| | - Shenjian Luo
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, China
| | - Peizhen Zhang
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, China
| | - Deying Liu
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, China
| | - Minghua Zheng
- MAFLD Research Center, Department of Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Diagnosis and Treatment for The Development of Chronic Liver Disease, Zhejiang Province, Wenzhou, Zhejiang, China
| | - Jin Li
- Division of Endocrinology, Department of Medicine, Shanxi Medical University affiliated Second Hospital, Taiyuan, China
| | - Yan Lu
- The Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education, Department of Endocrinology and Metabolism, Zhongshan Hospital, Fudan University, Shanghai, China.
| | - Huijie Zhang
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, China.
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Na E, Allen E, Baird LA, Odom CV, Korkmaz FT, Shenoy AT, Matschulat AM, Jones MR, Kotton DN, Mizgerd JP, Varelas X, Traber KE, Quinton LJ. Epithelial LIF signaling limits apoptosis and lung injury during bacterial pneumonia. Am J Physiol Lung Cell Mol Physiol 2022; 322:L550-L563. [PMID: 35137631 PMCID: PMC8957336 DOI: 10.1152/ajplung.00325.2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 12/17/2021] [Accepted: 02/02/2022] [Indexed: 11/22/2022] Open
Abstract
During bacterial pneumonia, alveolar epithelial cells are critical for maintaining gas exchange and providing antimicrobial as well as pro-immune properties. We previously demonstrated that leukemia inhibitory factor (LIF), an IL-6 family cytokine, is produced by type II alveolar epithelial cells (ATII) and is critical for tissue protection during bacterial pneumonia. However, the target cells and mechanisms of LIF-mediated protection remain unknown. Here, we demonstrate that antibody-induced LIF blockade remodels the lung epithelial transcriptome in association with increased apoptosis. Based on these data, we performed pneumonia studies using a novel mouse model in which LIFR (the unique receptor for LIF) is absent in lung epithelium. Although LIFR is expressed on the surface of epithelial cells, its absence only minimally contributed to tissue protection during pneumonia. Single-cell RNA-sequencing (scRNAseq) was conducted to identify adult murine lung cell types most prominently expressing Lifr, revealing endothelial cells, mesenchymal cells, and ATIIs as major sources of Lifr. Sequencing data indicated that ATII cells were significantly impacted by pneumonia, with additional differences observed in response to LIF neutralization, including but not limited to gene programs related to cell death, injury, and inflammation. Overall, our data suggest that LIF signaling on epithelial cells alters responses in this cell type during pneumonia. However, our results also suggest separate and perhaps more prominent roles of LIFR in other cell types, such as endothelial cells or mesenchymal cells, which provide grounds for future investigation.
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Affiliation(s)
- Elim Na
- Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
| | - Eri Allen
- Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts
| | - Lillia A Baird
- Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts
| | - Christine V Odom
- Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts
| | - Filiz T Korkmaz
- Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts
| | - Anukul T Shenoy
- Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts
| | - Adeline M Matschulat
- Department of Biochemistry, Boston University School of Medicine, Boston, Massachusetts
| | - Matthew R Jones
- Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
| | - Darrell N Kotton
- Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
| | - Joseph P Mizgerd
- Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
- Department of Biochemistry, Boston University School of Medicine, Boston, Massachusetts
| | - Xaralabos Varelas
- Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts
- Department of Biochemistry, Boston University School of Medicine, Boston, Massachusetts
| | - Katrina E Traber
- Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
| | - Lee J Quinton
- Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts
- Department of Medicine, Division of Infectious Diseases and Immunology, University of Massachusetts Chan Medical School, Worcester, Massachusetts
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Seeneevassen L, Martin OCB, Lehours P, Dubus P, Varon C. Leukaemia inhibitory factor in gastric cancer: friend or foe? Gastric Cancer 2022; 25:299-305. [PMID: 35106710 DOI: 10.1007/s10120-022-01278-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 01/13/2022] [Indexed: 02/06/2023]
Abstract
IL-6 family cytokine leukaemia inhibitory factor (LIF) study has deciphered a variety of effects, in physiology as well as pathology. Despite the sudden arousal in LIF interest in cancers, its study in the gastric cancer (GC) context has been put aside. Only few related studies can be found in literature, most of them investigating IL-6/STAT3 signalling in GC, and not the particular LIF/LIFRβ signalisation. LIF/LIFR has opposing effects depending on the signalling pathways involved. This review relates the pro- and anti-tumorigenic aspects of LIF/LIFR in GC, taking also into account facts from other types of cancer. A better understanding of these issues would undoubtedly help postulate interesting hypotheses and perspectives for future LIF/LIFR study and its use in GC therapies, where options tend to be limited in number and efficiency.
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Affiliation(s)
- Lornella Seeneevassen
- INSERM UMR1053 Bordeaux Research in Translational Oncology, Univ. Bordeaux, BaRITOn, 33076, Bordeaux, France
| | - Océane C B Martin
- INSERM UMR1053 Bordeaux Research in Translational Oncology, Univ. Bordeaux, BaRITOn, 33076, Bordeaux, France
| | - Philippe Lehours
- INSERM UMR1053 Bordeaux Research in Translational Oncology, Univ. Bordeaux, BaRITOn, 33076, Bordeaux, France.,Centre National de Référence des Helicobacters et Campylobacters, CHU Bordeaux, 33000, Bordeaux, France
| | - Pierre Dubus
- INSERM UMR1053 Bordeaux Research in Translational Oncology, Univ. Bordeaux, BaRITOn, 33076, Bordeaux, France.,Institute of Pathology and Tumor Biology, CHU Bordeaux, 33000, Bordeaux, France
| | - Christine Varon
- INSERM UMR1053 Bordeaux Research in Translational Oncology, Univ. Bordeaux, BaRITOn, 33076, Bordeaux, France.
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Hu C, Xia R, Zhang X, Li T, Ye Y, Li G, He R, Li Z, Lin Q, Zheng S, Chen R. circFARP1 enables cancer-associated fibroblasts to promote gemcitabine resistance in pancreatic cancer via the LIF/STAT3 axis. Mol Cancer 2022; 21:24. [PMID: 35045883 PMCID: PMC8767726 DOI: 10.1186/s12943-022-01501-3] [Citation(s) in RCA: 53] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 01/02/2022] [Indexed: 02/08/2023] Open
Abstract
Background Cancer-associated fibroblasts (CAFs) are critically involved in gemcitabine (GEM) resistance in pancreatic ductal adenocarcinoma (PDAC). However, the underlying mechanism by which CAFs promote chemotherapy resistance remains unexplored. Here, we explored the role of circRNAs in CAF-induced GEM resistance in PDAC. Methods circRNA sequencing and quantitative real-time PCR (qRT–PCR) were utilized to screen CAF-specific circRNAs. The effects of CAF circFARP1 expression on GEM resistance in tumor cells were assessed in vitro and in vivo. RNA-seq, RNA pulldown, RNA immunoprecipitation, and luciferase reporter assays were used to screen the downstream target and underlying mechanism of circFARP1. Results circFARP1 (hsa_circ_0002557), a CAF-specific circRNA, was positively correlated with GEM chemoresistance and poor survival in an advanced PDAC cohort. Silencing or overexpressing circFARP1 in CAFs altered the ability of CAFs to induce tumor cell stemness and GEM resistance via leukemia inhibitory factor (LIF). Mechanistically, we found that circFARP1 directly binds with caveolin 1 (CAV1) and blocks the interaction of CAV1 and the E3 ubiquitin-protein ligase zinc and ring finger 1 (ZNRF1) to inhibit CAV1 degradation, which enhances LIF secretion. In addition, circFARP1 upregulated LIF expression by sponging miR-660-3p. Moreover, high circFARP1 levels were positively correlated with elevated serum LIF levels in PDAC and poor patient survival. Decreasing circFARP1 levels and neutralizing LIF significantly suppressed PDAC growth and GEM resistance in patient-derived xenograft models. Conclusions The circFARP1/CAV1/miR-660-3p/LIF axis is critical for CAF-induced GEM resistance in PDAC. Hence, circFARP1 may be a potential therapeutic target for PDAC. Supplementary Information The online version contains supplementary material available at 10.1186/s12943-022-01501-3.
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Affiliation(s)
- Chonghui Hu
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China.,Guangdong cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China
| | - Renpeng Xia
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China.,The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, 510515, People's Republic of China.,Department of Neonatal/General Surgery, Hunan Children's Hospital, Changsha, Hunan, 410007, People's Republic of China
| | - Xiang Zhang
- Department of Pancreatobiliary Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510120, People's Republic of China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, People's Republic of China
| | - Tingting Li
- School of medicine, South China University of Technology, Guangzhou, Guangdong Province, 510006, People's Republic of China
| | - Yuancheng Ye
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China.,The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, 510515, People's Republic of China
| | - Guolin Li
- Department of Hepatobiliary, Pancreatic and Splenic surgery, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, 510655, People's Republic of China
| | - Rihua He
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China
| | - Zhihua Li
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, People's Republic of China.,Department of Oncology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, 510120, People's Republic of China
| | - Qing Lin
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China.
| | - Shangyou Zheng
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China.
| | - Rufu Chen
- Department of General Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, 510080, People's Republic of China. .,The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, 510515, People's Republic of China. .,School of medicine, South China University of Technology, Guangzhou, Guangdong Province, 510006, People's Republic of China.
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Lv SQ, Fu Z, Yang L, Li QR, Zhu J, Gai QJ, Mao M, He J, Qin Y, Yao XX, Lan X, Wang YX, Lu HM, Xiang Y, Zhang ZX, Huang GH, Yang W, Kang P, Sun Z, Shi Y, Yao XH, Bian XW, Wang Y. Comprehensive omics analyses profile genesets related with tumor heterogeneity of multifocal glioblastomas and reveal LIF/CCL2 as biomarkers for mesenchymal subtype. Theranostics 2022; 12:459-473. [PMID: 34987659 PMCID: PMC8690928 DOI: 10.7150/thno.65739] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 10/27/2021] [Indexed: 01/22/2023] Open
Abstract
Rationale: Around 10%-20% patients with glioblastoma (GBM) are diagnosed with more than one tumor lesions or multifocal GBM (mGBM). However, the understanding on genetic, DNA methylomic, and transcriptomic characteristics of mGBM is still limited. Methods: In this study, we collected nine tumor foci from three mGBM patients followed by whole genome sequencing, whole genome bisulfite sequencing, RNA sequencing, and immunohistochemistry. The data were further examined using public GBM databases and GBM cell line. Results: Analysis on genetic data confirmed common features of GBM, including gain of chr.7 and loss of chr.10, loss of critical tumor suppressors, high frequency of PDGFA and EGFR amplification. Through profiling DNA methylome of individual tumor foci, we found that promoter methylation status of genes involved in detection of chemical stimulus, immune response, and Hippo/YAP1 pathway was significantly changed in mGBM. Although both CNV and promoter methylation alteration were involved in heterogeneity of different tumor foci from same patients, more CNV events than promoter hypomethylation events were shared by different tumor foci, implying CNV were relatively earlier than promoter methylation alteration during evolution of different tumor foci from same mGBM. Moreover, different tumor foci from same mGBM assumed different molecular subtypes and mesenchymal subtype was prevalent in mGBM, which might explain the worse prognosis of mGBM than single GBM. Interestingly, we noticed that LIF and CCL2 was tightly correlated with mesenchymal subtype tumor focus in mGBM and predicted poor survival of GBM patients. Treatment with LIF and CCL2 produced mesenchymal-like transcriptome in GBM cells. Conclusions: Together, our work herein comprehensively profiled multi-omics features of mGBM and emphasized that components of extracellular microenvironment, such as LIF and CCL2, contributed to the evolution and prognosis of tumor foci in mGBM patients.
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Kazakov AS, Sokolov AS, Permyakova ME, Litus EA, Uversky VN, Permyakov EA, Permyakov SE. Specific cytokines of interleukin-6 family interact with S100 proteins. Cell Calcium 2021; 101:102520. [PMID: 34933172 DOI: 10.1016/j.ceca.2021.102520] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/10/2021] [Accepted: 12/12/2021] [Indexed: 02/07/2023]
Abstract
Cytokines of interleukin-6 (IL-6) family are important signaling proteins involved in various physiological and pathological processes. Earlier, we described interactions between IL-11 and S100P/B proteins from the family of S100 proteins engaged in the pathogenesis of numerous diseases. We probed here interactions between seven IL-6 family cytokines (IL-6, IL-11, OSM, LIF, CNTF, CT-1, and CLCF1) and fourteen S100 proteins (S100A1/A4/A6/A7/A8/A9/A10/A11/A12/A13/A14/A15/B/P). Surface plasmon resonance spectroscopy revealed formation of calcium-dependent complexes between IL-11, OSM, CNTF, CT-1, and CLCF1 and distinct subsets of S100A1/A6/B/P proteins with equilibrium dissociation constants of 19 nM - 12 µM. The existence of a network of interactions between Ca2+-loaded S100 proteins and IL-6 family cytokines suggest regulation of these cytokines by the extracellular forms of S100 proteins.
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Affiliation(s)
- Alexey S Kazakov
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Institutskaya str., 7, Pushchino, Moscow region 142290 Russia
| | - Andrey S Sokolov
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Institutskaya str., 7, Pushchino, Moscow region 142290 Russia
| | - Maria E Permyakova
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Institutskaya str., 7, Pushchino, Moscow region 142290 Russia
| | - Ekaterina A Litus
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Institutskaya str., 7, Pushchino, Moscow region 142290 Russia
| | - Vladimir N Uversky
- Department of Molecular Medicine and Byrd Alzheimer's Research Institute, Morsani College of Medicine, University of South Florida, 12901 Bruce B. Downs Blvd., Tampa, FL MDC07, USA.
| | - Eugene A Permyakov
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Institutskaya str., 7, Pushchino, Moscow region 142290 Russia
| | - Sergei E Permyakov
- Institute for Biological Instrumentation, Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Institutskaya str., 7, Pushchino, Moscow region 142290 Russia.
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Wang X, Cheng H, Yang Y, Zuo X, Shao L, Yu D, Yang N, Zhang Y, Li R, Wang X, Shen B, Wang J, Shi X, Cao P, Sun L, Han X, Sun Y. The enhancer rare germline variation rs548071605 contributes to lung cancer development. Hum Mutat 2021; 43:200-214. [PMID: 34859522 DOI: 10.1002/humu.24310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 10/21/2021] [Accepted: 11/28/2021] [Indexed: 11/05/2022]
Abstract
Rare germline variations contribute to the missing heritability of human complex diseases including cancers. Given their very low frequency, discovering and testing disease-causing rare germline variations remains challenging. The tag-single nucleotide polymorphism rs17728461 in 22q12.2 is highly associated with lung cancer risk. Here, we identified a functional rare germline variation rs548071605 (A>G) in a p65-responsive enhancer located within 22q12.2. The enhancer significantly promoted lung cancer cell proliferation in vitro and in a xenograft mouse model by upregulating the leukemia inhibitory factor (LIF) gene via the formation of a chromatin loop. Differential expression of LIF and its significant correlation with first progression survival time of patients further supported the lung cancer-driving effects of the 22q-Enh enhancer. Importantly, the rare variation was harbored in the p65 binding sequence and dramatically increased the enhancer activity by increasing responsiveness of the enhancer to p65 and B-cell lymphoma 3 protein, an oncoprotein that assisted the p65 binding. Our study revealed a regulatory rare germline variation with a potential lung cancer-driving role in the 22q12.2 risk region, providing intriguing clues for investigating the "missing heritability" of cancers, and also offered a useful experimental model for identifying causal rare variations.
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Affiliation(s)
- Xuchun Wang
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, Nanjing, China.,Department of Cell Biology, Nanjing Medical University, Nanjing, China
| | - He Cheng
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, Nanjing, China.,Department of Cell Biology, Nanjing Medical University, Nanjing, China
| | - Yin Yang
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China.,Department of Cell Biology, Nanjing Medical University, Nanjing, China
| | - Xianglin Zuo
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China.,Department of Cell Biology, Nanjing Medical University, Nanjing, China
| | - Lipei Shao
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China.,Department of Cell Biology, Nanjing Medical University, Nanjing, China
| | - Dawei Yu
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China.,Department of Cell Biology, Nanjing Medical University, Nanjing, China
| | - Nan Yang
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China
| | - Yu Zhang
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China.,Department of Cell Biology, Nanjing Medical University, Nanjing, China
| | - Ruilei Li
- Department of Cancer Biotherapy Center, The Third Affiliated Hospital of Kunming Medical University (Tumor Hospital of Yunnan Province), Kunming, Yunnan, China
| | - Xinyuan Wang
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China.,Department of Cell Biology, Nanjing Medical University, Nanjing, China
| | - Bin Shen
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Jianying Wang
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Xiao Shi
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China.,Department of Cell Biology, Nanjing Medical University, Nanjing, China
| | - Pingping Cao
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China.,Department of Cell Biology, Nanjing Medical University, Nanjing, China
| | - Luan Sun
- Department of Cell Biology, Nanjing Medical University, Nanjing, China
| | - Xiao Han
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China
| | - Yujie Sun
- Key Laboratory of Human Functional Genomics of Jiangsu Province, Nanjing Medical University, Nanjing, China.,Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Personalized Cancer Medicine, Nanjing Medical University, Nanjing, China.,Department of Cell Biology, Nanjing Medical University, Nanjing, China
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50
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de Lima Filho ES, Bouchard P, Sabsabi M, Lamouche G, Harhira A. Trace Selenium Measurement in Water Using Laser-Induced Fluorescence Assisted by Laser Ablation. Appl Spectrosc 2021; 75:1532-1537. [PMID: 34342524 DOI: 10.1177/00037028211035754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Selenium detection and removal from industrial and mining effluents have gained attention recently due to the negative effects of this trace element on aquatic life. However, the current methods for the detection of selenium in effluents are off-line by nature. In order to fill this gap, we investigated the use of laser ablation-assisted laser-induced fluorescence (LA-LIF) to measure trace amount of selenium in aqueous solutions. LA-LIF measurements are real time, label-free, standoff, and require no consumables as well as no sample preparation. They can provide a field-amenable, versatile tool for the measurement of selenium in the whole water treatment chain. We describe the system utilized, the temporal and fluence optimization studies, and the resulting calibration curve, which is linear over a wide dynamic range from parts-per-billion to tens of parts-per-million concentration levels. We also show that the achieved limit of detection of selenium can reach 32 µg/L using LA-LIF, without any kind of preconcentration or matrix transfer.
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Affiliation(s)
| | - Paul Bouchard
- Energy, Mining and Environment Research Centre, National Research Council Canada, Boucherville, Canada
| | - Mohamad Sabsabi
- Energy, Mining and Environment Research Centre, National Research Council Canada, Boucherville, Canada
| | - Guy Lamouche
- Energy, Mining and Environment Research Centre, National Research Council Canada, Boucherville, Canada
| | - Aïssa Harhira
- Energy, Mining and Environment Research Centre, National Research Council Canada, Boucherville, Canada
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