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Tomuleasa C, Tigu AB, Munteanu R, Moldovan CS, Kegyes D, Onaciu A, Gulei D, Ghiaur G, Einsele H, Croce CM. Therapeutic advances of targeting receptor tyrosine kinases in cancer. Signal Transduct Target Ther 2024; 9:201. [PMID: 39138146 PMCID: PMC11323831 DOI: 10.1038/s41392-024-01899-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 05/29/2024] [Accepted: 06/14/2024] [Indexed: 08/15/2024] Open
Abstract
Receptor tyrosine kinases (RTKs), a category of transmembrane receptors, have gained significant clinical attention in oncology due to their central role in cancer pathogenesis. Genetic alterations, including mutations, amplifications, and overexpression of certain RTKs, are critical in creating environments conducive to tumor development. Following their discovery, extensive research has revealed how RTK dysregulation contributes to oncogenesis, with many cancer subtypes showing dependency on aberrant RTK signaling for their proliferation, survival and progression. These findings paved the way for targeted therapies that aim to inhibit crucial biological pathways in cancer. As a result, RTKs have emerged as primary targets in anticancer therapeutic development. Over the past two decades, this has led to the synthesis and clinical validation of numerous small molecule tyrosine kinase inhibitors (TKIs), now effectively utilized in treating various cancer types. In this manuscript we aim to provide a comprehensive understanding of the RTKs in the context of cancer. We explored the various alterations and overexpression of specific receptors across different malignancies, with special attention dedicated to the examination of current RTK inhibitors, highlighting their role as potential targeted therapies. By integrating the latest research findings and clinical evidence, we seek to elucidate the pivotal role of RTKs in cancer biology and the therapeutic efficacy of RTK inhibition with promising treatment outcomes.
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Affiliation(s)
- Ciprian Tomuleasa
- Medfuture Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
- Department of Hematology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj Napoca, Romania.
- Department of Hematology, Ion Chiricuta Clinical Cancer Center, Cluj Napoca, Romania.
- Academy of Romanian Scientists, Ilfov 3, 050044, Bucharest, Romania.
| | - Adrian-Bogdan Tigu
- Medfuture Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Academy of Romanian Scientists, Ilfov 3, 050044, Bucharest, Romania
| | - Raluca Munteanu
- Medfuture Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Department of Hematology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj Napoca, Romania
- Academy of Romanian Scientists, Ilfov 3, 050044, Bucharest, Romania
| | - Cristian-Silviu Moldovan
- Medfuture Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - David Kegyes
- Medfuture Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Department of Hematology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj Napoca, Romania
- Academy of Romanian Scientists, Ilfov 3, 050044, Bucharest, Romania
| | - Anca Onaciu
- Medfuture Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Diana Gulei
- Medfuture Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Gabriel Ghiaur
- Medfuture Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Department of Hematology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj Napoca, Romania
- Department of Leukemia, Sidney Kimmel Cancer Center at Johns Hopkins, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Hermann Einsele
- Medfuture Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Department of Hematology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj Napoca, Romania
- Universitätsklinikum Würzburg, Medizinische Klinik II, Würzburg, Germany
| | - Carlo M Croce
- Department of Cancer Biology and Genetics and Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA.
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Mórotz GM, Bradbury NA, Caluseriu O, Hisanaga SI, Miller CCJ, Swiatecka-Urban A, Lenz HJ, Moss SJ, Giamas G. A revised nomenclature for the lemur family of protein kinases. Commun Biol 2024; 7:57. [PMID: 38191649 PMCID: PMC10774328 DOI: 10.1038/s42003-023-05671-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 12/04/2023] [Indexed: 01/10/2024] Open
Abstract
The lemur family of protein kinases has gained much interest in recent years as they are involved in a variety of cellular processes including regulation of axonal transport and endosomal trafficking, modulation of synaptic functions, memory and learning, and they are centrally placed in several intracellular signalling pathways. Numerous studies have also implicated role of the lemur kinases in the development and progression of a wide range of cancers, cystic fibrosis, and neurodegenerative diseases. However, parallel discoveries and inaccurate prediction of their kinase activity have resulted in a confusing and misleading nomenclature of these proteins. Herein, a group of international scientists with expertise in lemur family of protein kinases set forth a novel nomenclature to rectify this problem and ultimately help the scientific community by providing consistent information about these molecules.
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Affiliation(s)
- Gábor M Mórotz
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, 1089, Budapest, Hungary.
| | - Neil A Bradbury
- Department of Physiology and Biophysics, Chicago Medical School, North Chicago, IL, 60064, USA
| | - Oana Caluseriu
- Department of Medical Genetics, University of Alberta Hospital, Edmonton, AB, T6G 2H7, Canada
| | - Shin-Ichi Hisanaga
- Laboratory of Molecular Neuroscience, Department of Biological Sciences, Graduate School of Science, Tokyo Metropolitan University, Minami-Osawa, Hachioji, Tokyo, 92-0397, Japan
| | - Christopher C J Miller
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 9RX, UK
| | - Agnieszka Swiatecka-Urban
- Department of Pediatrics, University of Virginia School of Medicine, Charlottesville, VA, 22903, USA
| | - Heinz-Josef Lenz
- Department of Medicine, University of Southern California/Norris Comprehensive Cancer Centre, Los Angeles, CA, 90033, USA
| | - Stephen J Moss
- Department of Neuroscience, Tufts University School of Medicine, Boston, MA, 02111, USA
- Department of Neuroscience, Physiology and Pharmacology, University College London, London, WC1 6BT, UK
| | - Georgios Giamas
- Department of Biochemistry and Biomedicine, School of Life Sciences, University of Sussex, Brighton, BN1 9QG, UK.
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Chernyaeva L, Ratti G, Teirilä L, Fudo S, Rankka U, Pelkonen A, Korhonen P, Leskinen K, Keskitalo S, Salokas K, Gkolfinopoulou C, Crompton KE, Javanainen M, Happonen L, Varjosalo M, Malm T, Leinonen V, Chroni A, Saavalainen P, Meri S, Kajander T, Wollman AJ, Nissilä E, Haapasalo K. Reduced binding of apoE4 to complement factor H promotes amyloid-β oligomerization and neuroinflammation. EMBO Rep 2023:e56467. [PMID: 37155564 DOI: 10.15252/embr.202256467] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 04/08/2023] [Accepted: 04/24/2023] [Indexed: 05/10/2023] Open
Abstract
The APOE4 variant of apolipoprotein E (apoE) is the most prevalent genetic risk allele associated with late-onset Alzheimer's disease (AD). ApoE interacts with complement regulator factor H (FH), but the role of this interaction in AD pathogenesis is unknown. Here we elucidate the mechanism by which isoform-specific binding of apoE to FH alters Aβ1-42-mediated neurotoxicity and clearance. Flow cytometry and transcriptomic analysis reveal that apoE and FH reduce binding of Aβ1-42 to complement receptor 3 (CR3) and subsequent phagocytosis by microglia which alters expression of genes involved in AD. Moreover, FH forms complement-resistant oligomers with apoE/Aβ1-42 complexes and the formation of these complexes is isoform specific with apoE2 and apoE3 showing higher affinity to FH than apoE4. These FH/apoE complexes reduce Aβ1-42 oligomerization and toxicity, and colocalize with complement activator C1q deposited on Aβ plaques in the brain. These findings provide an important mechanistic insight into AD pathogenesis and explain how the strongest genetic risk factor for AD predisposes for neuroinflammation in the early stages of the disease pathology.
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Affiliation(s)
- Larisa Chernyaeva
- Department of Bacteriology and Immunology, Medicum and Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | | | - Laura Teirilä
- Department of Bacteriology and Immunology, Medicum and Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Satoshi Fudo
- Department of Bacteriology and Immunology, Medicum and Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Uni Rankka
- Department of Bacteriology and Immunology, Medicum and Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Anssi Pelkonen
- A.I. Virtanen Institute for Molecular Sciences, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Paula Korhonen
- A.I. Virtanen Institute for Molecular Sciences, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Katarzyna Leskinen
- Department of Bacteriology and Immunology, Medicum and Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Salla Keskitalo
- Institute of Biotechnology, HiLIFE Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - Kari Salokas
- Institute of Biotechnology, HiLIFE Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - Christina Gkolfinopoulou
- Institute of Biosciences and Applications, National Center for Scientific Research "Demokritos", Athens, Greece
| | | | - Matti Javanainen
- Institute of Biotechnology, HiLIFE Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - Lotta Happonen
- Division of Infection Medicine, Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Markku Varjosalo
- Institute of Biotechnology, HiLIFE Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - Tarja Malm
- A.I. Virtanen Institute for Molecular Sciences, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Ville Leinonen
- Institute of Clinical Medicine - Neurosurgery, University of Eastern Finland and Department of Neurosurgery, Kuopio University Hospital, Kuopio, Finland
| | - Angeliki Chroni
- Institute of Biosciences and Applications, National Center for Scientific Research "Demokritos", Athens, Greece
| | - Päivi Saavalainen
- Department of Bacteriology and Immunology, Medicum and Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Seppo Meri
- Department of Bacteriology and Immunology, Medicum and Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Humanitas University, Milano, Italy
| | - Tommi Kajander
- Institute of Biotechnology, HiLIFE Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - Adam Jm Wollman
- Biosciences Institute, Newcastle University, Newcastle-Upon-Tyne, UK
| | - Eija Nissilä
- Department of Bacteriology and Immunology, Medicum and Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Karita Haapasalo
- Department of Bacteriology and Immunology, Medicum and Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
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Liao C, Moyses-Oliveira M, De Esch CE, Bhavsar R, Nuttle X, Li A, Yu A, Burt ND, Erdin S, Fu JM, Wang M, Morley T, Han L, Dion PA, Rouleau GA, Zhang B, Brennand KJ, Talkowski ME, Ruderfer DM. Convergent coexpression of autism-associated genes suggests some novel risk genes may not be detectable in large-scale genetic studies. CELL GENOMICS 2023; 3:100277. [PMID: 37082147 PMCID: PMC10112287 DOI: 10.1016/j.xgen.2023.100277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 12/01/2022] [Accepted: 02/10/2023] [Indexed: 03/21/2023]
Abstract
Autism spectrum disorder (ASD) is a heritable neurodevelopmental disorder characterized by deficits in social interactions and communication. Protein-altering variants in many genes have been shown to contribute to ASD; however, understanding the convergence across many genes remains a challenge. We demonstrate that coexpression patterns from 993 human postmortem brains are significantly correlated with the transcriptional consequences of CRISPR perturbations in human neurons. Across 71 ASD risk genes, there was significant tissue-specific convergence implicating synaptic pathways. Tissue-specific convergence was further demonstrated across schizophrenia and atrial fibrillation risk genes. The degree of ASD convergence was significantly correlated with ASD association from rare variation and differential expression in ASD brains. Positively convergent genes showed intolerance to functional mutations and had shorter coding lengths than known risk genes even after removing association with ASD. These results indicate that convergent coexpression can identify potentially novel genes that are unlikely to be discovered by sequencing studies.
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Bai G, Qiao Y, Lo PC, Song L, Yang Y, Duan L, Wei S, Li M, Huang S, Zhang B, Wang Q, Yang C. Anti-depressive effects of Jiao-Tai-Wan on CORT-induced depression in mice by inhibiting inflammation and microglia activation. JOURNAL OF ETHNOPHARMACOLOGY 2022; 283:114717. [PMID: 34627986 DOI: 10.1016/j.jep.2021.114717] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 09/29/2021] [Accepted: 10/05/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Jiao-Tai-Wan (JTW) is a very famous traditional Chinese medicine formula for the treatment of psychiatric disorders, especially in anxiety, insomnia and depression. However, its molecular mechanism of treatment remains indistinct. AIM OF THE STUDY We aimed to reveal the action mechanism of JTW on anti-depression via inhibiting microglia activation and pro-inflammatory response both in vivo and in vitro. MATERIAL AND METHODS The corticosterone (CORT)-induced depression mouse model was used to evaluate the therapeutic efficacy of JTW. Behavioral tests (open field, elevated plus maze, tail suspension and forced swim test) were conducted to evaluate the effect of JTW on depressive-like behaviors. The levels of inflammatory factors and the concentration of neurotransmitters were detected by RT-qPCR or ELISA assays. Then three hippocampal tissue samples per group (Control, CORT, and JTW group) were sent for RNA sequencing (RNA-seq). Transcriptomics data analysis was used to screen the key potential therapeutic targets and signaling pathways of JTW. Based on 8 bioactive species of JTW by our previous study using High-performance liquid chromatography (HPLC) analysis, molecular docking analyses were used to predict the interaction of JTW-derived compounds and depression targets. Finally, the results of transcriptome and molecular docking analyses were combined to verify the targets, key pathways, and efficacy of JTW treatment in vivo and vitro. RESULTS JTW ameliorated CORT-induced depressive-like behaviors, neuronal damage and enhanced the levels of monoamine neurotransmitters in the serum of mice. JTW also inhibited CORT-induced inflammatory activation of microglia and decreased the serum levels of interleukin- 6(IL-6) and interleukin- 1β (IL-1β) in vivo. Transcriptomic data analysis showed there were 10 key driver analysis (KDA) genes with the strongest correlation which JTW regulated in depression mice. Molecular docking analysis displayed bioactive compound Magnoflorine had the strongest binding force to the key gene colony-stimulating factor 1 receptor (CSF1R), which is the signaling microglia dependent upon for their survival. Meanwhile, CSF1R staining showed it was consistent with inflammatory activation of microglia. Our vitro experiment also showed JTW and CSF1R inhibitor significantly reduced lipopolysaccharide (LPS)/interferon-gamma (IFNɣ)-induced inflammatory activation response in macrophage cells. CONCLUSIONS Our study suggests that JTW might ameliorate CORT-induced neuronal damage in depression mice by inhibiting CSF1R mediated microglia activation and pro-inflammatory response.
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Affiliation(s)
- Guiqin Bai
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
| | - Yiqi Qiao
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
| | - Po-Chieh Lo
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
| | - Lei Song
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
| | - Yuna Yang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China; Laboratory Animal Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
| | - Lining Duan
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China; Clinical Medical College of Acupuncture Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
| | - Sufen Wei
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
| | - Min Li
- Clinical Medical College of Acupuncture Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
| | - Shuiqing Huang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
| | - Beiping Zhang
- Guangdong Province Hospital of Traditional Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
| | - Qi Wang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
| | - Cong Yang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
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Bencze J, Szarka M, Kóti B, Seo W, Hortobágyi TG, Bencs V, Módis LV, Hortobágyi T. Comparison of Semi-Quantitative Scoring and Artificial Intelligence Aided Digital Image Analysis of Chromogenic Immunohistochemistry. Biomolecules 2021; 12:biom12010019. [PMID: 35053167 PMCID: PMC8774232 DOI: 10.3390/biom12010019] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 12/12/2021] [Accepted: 12/20/2021] [Indexed: 12/27/2022] Open
Abstract
Semi-quantitative scoring is a method that is widely used to estimate the quantity of proteins on chromogen-labelled immunohistochemical (IHC) tissue sections. However, it suffers from several disadvantages, including its lack of objectivity and the fact that it is a time-consuming process. Our aim was to test a recently established artificial intelligence (AI)-aided digital image analysis platform, Pathronus, and to compare it to conventional scoring by five observers on chromogenic IHC-stained slides belonging to three experimental groups. Because Pathronus operates on grayscale 0-255 values, we transformed the data to a seven-point scale for use by pathologists and scientists. The accuracy of these methods was evaluated by comparing statistical significance among groups with quantitative fluorescent IHC reference data on subsequent tissue sections. The pairwise inter-rater reliability of the scoring and converted Pathronus data varied from poor to moderate with Cohen’s kappa, and overall agreement was poor within every experimental group using Fleiss’ kappa. Only the original and converted that were obtained from Pathronus original were able to reproduce the statistical significance among the groups that were determined by the reference method. In this study, we present an AI-aided software that can identify cells of interest, differentiate among organelles, protein specific chromogenic labelling, and nuclear counterstaining after an initial training period, providing a feasible and more accurate alternative to semi-quantitative scoring.
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Affiliation(s)
- János Bencze
- Division of Radiology and Imaging Science, Department of Medical Imaging, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
- ELKH-DE Cerebrovascular and Neurodegenerative Research Group, Department of Neurology, University of Debrecen, 4032 Debrecen, Hungary
| | - Máté Szarka
- Horvath Csaba Laboratory of Bioseparation Sciences, Research Center for Molecular Medicine, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
- Vitrolink Kft., 4033 Debrecen, Hungary;
- Institute for Nuclear Research, 4026 Debrecen, Hungary
| | | | - Woosung Seo
- Department of Surgical Sciences, Radiology, Uppsala University, 751 85 Uppsala, Sweden;
| | - Tibor G. Hortobágyi
- Institute of Pathology, Albert Szent-Györgyi Medical School, University of Szeged, 6725 Szeged, Hungary;
| | - Viktor Bencs
- Department of Neurology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
| | - László V. Módis
- Department of Behavioural Sciences, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary;
| | - Tibor Hortobágyi
- ELKH-DE Cerebrovascular and Neurodegenerative Research Group, Department of Neurology, University of Debrecen, 4032 Debrecen, Hungary
- Institute of Pathology, Albert Szent-Györgyi Medical School, University of Szeged, 6725 Szeged, Hungary;
- Department of Old Age Psychiatry, Institute of Psychiatry Psychology and Neuroscience, King’s College London, London SE5 8AF, UK
- Centre for Age-Related Medicine, SESAM, Stavanger University Hospital, 4011 Stavanger, Norway
- Correspondence:
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Cruz DF, Mitash N, Mu F, Farinha CM, Swiatecka-Urban A. Differential Gene Expression Analysis Reveals Global LMTK2 Regulatory Network and Its Role in TGF-β1 Signaling. Front Oncol 2021; 11:596861. [PMID: 33816229 PMCID: PMC8013980 DOI: 10.3389/fonc.2021.596861] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 03/02/2021] [Indexed: 11/24/2022] Open
Abstract
Lemur tyrosine kinase 2 (LMTK2) is a transmembrane Ser/Thr kinase whose role has been increasingly recognized; however, when compared to other kinases, understanding of the LMTK2 networks and biological functions is still limited. Recent data have shown that transforming growth factor (TGF)-β1 plays a role in modulating LMTK2 function by controlling its endocytic trafficking in human bronchial epithelial cells. Here, we aimed to unveil the LMTK2 regulatory network and elucidate how it affects cellular functions and disease pathways in either TGF-β1 dependent or independent manner. To understand how the LMTK2 and TGF-β1 pathways interconnect, we knocked down (KD) LMTK2 using small(si)RNA-mediated silencing in human bronchial epithelial CFBE41o- cells, treated cells with TGF-β1 or vehicle control, and performed differential gene expression analysis by RNA sequencing (RNAseq). In vehicle-treated cells, LMTK2 KD affected expression of 2,506 genes while it affected 4,162 genes after TGF-β1 stimulation. Bioinformatics analysis shows that LMTK2 is involved in diverse cellular functions and disease pathways, such as cell death and survival, cellular development, and cancer susceptibility. In summary, our study increases current knowledge about the LMTK2 network and its intersection with the TGF-β1 signaling pathway. These findings will serve as basis for future exploration of the predicted LMTK2 interactions and signaling pathways.
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Affiliation(s)
- Daniel F Cruz
- Department of Nephrology, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States.,Biosystems and Integrative Sciences Institute, Faculty of Sciences, University of Lisbon, Lisbon, Portugal
| | - Nilay Mitash
- Department of Nephrology, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Fangping Mu
- Center for Research Computing, University of Pittsburgh, Pittsburgh, PA, United States
| | - Carlos M Farinha
- Biosystems and Integrative Sciences Institute, Faculty of Sciences, University of Lisbon, Lisbon, Portugal
| | - Agnieszka Swiatecka-Urban
- Department of Nephrology, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
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Módis LV, Varkoly G, Bencze J, Hortobágyi TG, Módis L, Hortobágyi T. Extracellular matrix changes in corneal opacification vary depending on etiology. Mol Vis 2021; 27:26-36. [PMID: 33633437 PMCID: PMC7883932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 01/13/2021] [Indexed: 11/01/2022] Open
Abstract
Purpose The purpose of this study is to examine the expression of tenascin-C and matrilin-2 in three different disorders, which frequently require corneal transplantation. These pathological conditions include bullous keratopathy (BK), Fuchs' endothelial corneal dystrophy (FECD), and corneal scarring in herpetic keratitis. Methods Histological sections of corneal buttons removed during keratoplasty were analyzed in BK (n = 20), FECD (n = 9), herpetic keratitis (n = 12), and cadaveric control (n = 10) groups with light microscopy following chromogenic immunohistochemistry. The sections were evaluated by three investigators, and semiquantitative scoring (0 to 3+) was applied according to standardized methods at 400X magnification. Each layer of the cornea was investigated; moreover, the stroma was subdivided into subepithelial, middle, and pre-Descemet's membrane areas for more detailed analysis. Results Excessive epithelial and stromal expression of tenascin-C was identified in all investigated conditions; the results were most pronounced in the pre-Descemet's membrane. Regarding matrilin-2, when examined in BK, there was increased labeling intensity in the epithelium (p<0.001) and stromal layers (p<0.05), and a decrease in the endothelium (p<0.001). In the other investigated conditions, only a low degree of stromal localization (p<0.05) of matrilin-2 was detected. Conclusions The expression of tenascin-C and matrilin-2 differs when examined in various corneal pathologies resulting in opacification. Both molecules seem to be involved in regeneration and wound healing of the corneal matrix in these diseases.
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Affiliation(s)
- László V. Módis
- ELKH-DE Cerebrovascular and Neurodegenerative Research Group, Department of Neurology, University of Debrecen, Debrecen, Hungary,Department of Behavioural Sciences, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Gréta Varkoly
- Szabolcs-Szatmár-Bereg County Hospitals, Department of Ophthalmology, Nyíregyháza, Hungary
| | - János Bencze
- ELKH-DE Cerebrovascular and Neurodegenerative Research Group, Department of Neurology, University of Debrecen, Debrecen, Hungary,Deparment of Medical Imaging, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Tibor G. Hortobágyi
- Institute of Pathology, Faculty of Medicine, University of Szeged, Szeged, Hungary
| | - László Módis
- Department of Ophthalmology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Tibor Hortobágyi
- ELKH-DE Cerebrovascular and Neurodegenerative Research Group, Department of Neurology, University of Debrecen, Debrecen, Hungary,Institute of Pathology, Faculty of Medicine, University of Szeged, Szeged, Hungary,Institute of Psychiatry Psychology and Neuroscience, King’s College London, London, UK,Centre for Age-Related Medicine, SESAM, Stavanger University Hospital, Stavanger, Norway
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9
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Hisanaga SI, Wei R, Huo A, Tomomura M. LMTK1, a Novel Modulator of Endosomal Trafficking in Neurons. Front Mol Neurosci 2020; 13:112. [PMID: 32714146 PMCID: PMC7344150 DOI: 10.3389/fnmol.2020.00112] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 06/02/2020] [Indexed: 12/16/2022] Open
Abstract
Neurons extend long processes known as axons and dendrites, through which they communicate with each other. The neuronal circuits formed by the axons and dendrites are the structural basis of higher brain functions. The formation and maintenance of these processes are essential for physiological brain activities. Membrane components, both lipids, and proteins, that are required for process formation are supplied by vesicle transport. Intracellular membrane trafficking is regulated by a family of Rab small GTPases. A group of Rabs regulating endosomal trafficking has been studied mainly in nonpolarized culture cell lines, and little is known about their regulation in polarized neurons with long processes. As shown in our recent study, lemur tail (former tyrosine) kinase 1 (LMTK1), an as yet uncharacterized Ser/Thr kinase associated with Rab11-positive recycling endosomes, modulates the formation of axons, dendrites, and spines in cultured primary neurons. LMTK1 knockdown or knockout (KO) or the expression of a kinase-negative mutant stimulates the transport of endosomal vesicles in neurons, leading to the overgrowth of axons, dendrites, and spines. More recently, we found that LMTK1 regulates TBC1D9B Rab11 GAP and proposed the Cdk5/p35-LMTK1-TBC1D9B-Rab11 pathway as a signaling cascade that regulates endosomal trafficking. Here, we summarize the biochemical, cell biological, and physiological properties of LMTK1.
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Affiliation(s)
- Shin-Ichi Hisanaga
- Department of Biological Sciences, Tokyo Metropolitan University, Minami-Osawa Campus, Hachioji, Japan
| | - Ran Wei
- Department of Biological Sciences, Tokyo Metropolitan University, Minami-Osawa Campus, Hachioji, Japan
| | - Anni Huo
- Department of Biological Sciences, Tokyo Metropolitan University, Minami-Osawa Campus, Hachioji, Japan
| | - Mineko Tomomura
- Department of Oral Health Sciences, Meikai University School of Health Sciences, Urayasu, Japan
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Bencze J, Szarka M, Bencs V, Szabó RN, Módis LV, Aarsland D, Hortobágyi T. Lemur Tyrosine Kinase 2 (LMTK2) Level Inversely Correlates with Phospho-Tau in Neuropathological Stages of Alzheimer's Disease. Brain Sci 2020; 10:E68. [PMID: 32012723 PMCID: PMC7071479 DOI: 10.3390/brainsci10020068] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/17/2020] [Accepted: 01/25/2020] [Indexed: 12/11/2022] Open
Abstract
: Alzheimer's disease (AD) is the most common neurodegenerative dementia. Mapping the pathomechanism and providing novel therapeutic options have paramount significance. Recent studies have proposed the role of LMTK2 in AD. However, its expression pattern and association with the pathognomonic neurofibrillary tangles (NFTs) in different brain regions and neuropathological stages of AD is not clear. We performed chromogenic (CHR) LMTK2 and fluorescent phospho-tau/LMTK2 double-labelling (FDL) immunohistochemistry (IHC) on 10-10 postmortem middle frontal gyrus (MFG) and anterior hippocampus (aHPC) samples with early and late neuropathological Braak tau stages of AD. MFG in early stage was our 'endogenous control' region as it is not affected by NFTs. Semiquantitative CHR-IHC intensity scoring revealed significantly higher (p < 0.001) LMTK2 values in this group compared to NFT-affected regions. FDL-IHC demonstrated LMTK2 predominance in the endogenous control region, while phospho-tau overburden and decreased LMTK2 immunolabelling were detected in NFT-affected groups (aHPC in early and both regions in late stage). Spearman's correlation coefficient showed strong negative correlation between phospho-tau/LMTK2 signals within each group. According to our results, LMTK2 expression is inversely proportionate to the extent of NFT pathology, and decreased LMTK2 level is not a general feature in AD brain, rather it is characteristic of the NFT-affected regions.
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Affiliation(s)
- János Bencze
- Department of Pathology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
- MTA-DE Cerebrovascular and Neurodegenerative Research Group, Department of Neurology, University of Debrecen, 4032 Debrecen, Hungary
| | - Máté Szarka
- Horvath Csaba Memorial Institute of Bioanalytical Research, Research Centre for Molecular Medicine, University of Debrecen, 4032 Debrecen, Hungary
- Vitrolink Ltd., 4033 Debrecen, Hungary
- Institute for Nuclear Research of the Hungarian Academy of Sciences (ATOMKI), 4026 Debrecen, Hungary
| | - Viktor Bencs
- Department of Pathology, Faculty of Medicine, University of Debrecen, 4032 Debrecen, Hungary
| | - Renáta Nóra Szabó
- MTA-DE Cerebrovascular and Neurodegenerative Research Group, Department of Neurology, University of Debrecen, 4032 Debrecen, Hungary
- Institute of Pathology, Faculty of Medicine, University of Szeged, 6725 Szeged, Hungary
| | - László V. Módis
- MTA-DE Cerebrovascular and Neurodegenerative Research Group, Department of Neurology, University of Debrecen, 4032 Debrecen, Hungary
| | - Dag Aarsland
- Department of Old Age Psychiatry, Institute of Psychiatry Psychology and Neuroscience, King’s College London, London SE5 8AF, UK
- Centre for Age-Related Medicine, SESAM, Stavanger University Hospital, 4011 Stavanger, Norway
| | - Tibor Hortobágyi
- MTA-DE Cerebrovascular and Neurodegenerative Research Group, Department of Neurology, University of Debrecen, 4032 Debrecen, Hungary
- Institute of Pathology, Faculty of Medicine, University of Szeged, 6725 Szeged, Hungary
- Department of Old Age Psychiatry, Institute of Psychiatry Psychology and Neuroscience, King’s College London, London SE5 8AF, UK
- Centre for Age-Related Medicine, SESAM, Stavanger University Hospital, 4011 Stavanger, Norway
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