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Fayezi S, Oehms S, Wolff von Gudenberg H, Ponnaiah M, Lhomme M, Strowitzki T, Germeyer A. De novo synthesis of monounsaturated fatty acids modulates exosome-mediated lipid export from human granulosa cells. Mol Cell Endocrinol 2024; 592:112317. [PMID: 38901632 DOI: 10.1016/j.mce.2024.112317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/21/2024] [Accepted: 06/15/2024] [Indexed: 06/22/2024]
Abstract
BACKGROUND Ovarian somatic cells support the maturation and fertility of oocytes. Metabolic desaturation of fatty acids in these cells has a positive paracrine impact on the maturation of oocytes. We hypothesized that the enzyme stearoyl-CoA desaturase 1 (SCD1) in granulosa cells regulates the lipid cargo of exosomes secreted from these cells by maintaining the balance between saturated and unsaturated lipids. We investigated the effect of SCD1 on exosome lipid content in a cumulus-granulosa cell model under physiologically relevant in vitro conditions. METHODS Non-luteinized human COV434 granulosa cells were subjected to treatment with an inhibitor of SCD1 (SCDinhib) alone, in combination with oleic acid, or under control conditions. Subsequently, the exosomes were isolated and characterized via nanoparticle tracking analysis, transmission electron microscopy, and Western blotting. We used liquid chromatography mass spectrometry to investigate the lipidomic profiles. We used quantitative PCR with TaqMan primers to assess the expression of genes involved in lipogenesis and control of cell cycle progression. RESULTS A trend toward exosome production was observed with a shift toward smaller exosome sizes in cells treated with SCD1inhib. This trend reached statistical significance when SCDinhib was combined with oleic acid supplementation. SCD1 inhibition led to the accumulation of saturated omega-6 lipids in exosomes. The latter effect was reversed by oleic acid supplementation, which also improved exosome production and suppressed the expression of fatty acid synthase and Cyclin D2. CONCLUSION These findings underscore the critical role of de novo fatty acid desaturation in the regulation of the export of specific lipids through exosomes, with potential implications for controlling intercellular communication within the ovary.
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Affiliation(s)
- Shabnam Fayezi
- Department of Gynecological Endocrinology and Fertility Disorders, Women's Hospital, University of Heidelberg, 69120 Heidelberg, Germany.
| | - Sophie Oehms
- Department of Gynecological Endocrinology and Fertility Disorders, Women's Hospital, University of Heidelberg, 69120 Heidelberg, Germany
| | - Helena Wolff von Gudenberg
- Department of Gynecological Endocrinology and Fertility Disorders, Women's Hospital, University of Heidelberg, 69120 Heidelberg, Germany
| | - Maharajah Ponnaiah
- Foundation for Innovation in Cardiometabolism and Nutrition (IHU ICAN), ICAN I/O - Data Sciences (MP), ICAN Omics (ML), 75013 Paris, France
| | - Marie Lhomme
- Foundation for Innovation in Cardiometabolism and Nutrition (IHU ICAN), ICAN I/O - Data Sciences (MP), ICAN Omics (ML), 75013 Paris, France
| | - Thomas Strowitzki
- Department of Gynecological Endocrinology and Fertility Disorders, Women's Hospital, University of Heidelberg, 69120 Heidelberg, Germany
| | - Ariane Germeyer
- Department of Gynecological Endocrinology and Fertility Disorders, Women's Hospital, University of Heidelberg, 69120 Heidelberg, Germany
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Renu K, Veeraraghavan VP, Gopalakrishnan AV. Targeting Lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1) for Oral Squamous Cell Carcinoma management. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2024; 125:101930. [PMID: 38815726 DOI: 10.1016/j.jormas.2024.101930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Accepted: 05/27/2024] [Indexed: 06/01/2024]
Affiliation(s)
- Kaviyarasi Renu
- Centre of Molecular Medicine and Diagnostics (COMManD), Department of Biochemistry, Saveetha Dental College & Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 600077 Tamil Nadu, India.
| | - Vishnu Priya Veeraraghavan
- Centre of Molecular Medicine and Diagnostics (COMManD), Department of Biochemistry, Saveetha Dental College & Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 600077 Tamil Nadu, India.
| | - Abilash Valsala Gopalakrishnan
- Department of Biomedical Sciences, School of Bio-Sciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India.
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3
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Estephan LE, Kumar G, Stewart M, Banoub R, Linnenbach A, Harshyne LA, Martinez-Outschoorn UE, Mahoney MG, Curry JM, Johnson J, South AP, Luginbuhl AJ. Altered extracellular matrix correlates with an immunosuppressive tumor microenvironment and disease progression in younger adults with oral cavity squamous cell carcinoma. Front Oncol 2024; 14:1412212. [PMID: 38957320 PMCID: PMC11217481 DOI: 10.3389/fonc.2024.1412212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Accepted: 06/05/2024] [Indexed: 07/04/2024] Open
Abstract
Introduction Oral cavity squamous cell carcinoma (OSCC) occurs most frequently in patients >60 years old with a history of tobacco and alcohol use. Epidemiological studies describe increased incidence of OSCC in younger adults (<45 years). Despite its poor prognosis, knowledge of OSCC tumor microenvironment (TME) characteristics in younger adults is scarce and could help inform possible resistance to emerging treatment options. Methods Patients with OSCC were evaluated using TCGA-HNSC (n=121) and a stage and subsite-matched institutional cohort (n=8) to identify differential gene expression focusing on the extracellular matrix (ECM) and epithelial-mesenchymal transition (EMT) processes in younger (≤45 years) vs. older adults (≥60 years). NanoString nCounter analysis was performed using isolated total RNA from formalin-fixed paraffin-embedded (FFPE) tumor samples. Stained tumor slides from young and old OSCC patients were evaluated for CD8+ T-cell counts using immunohistochemistry. Results Younger OSCC patients demonstrated significantly increased expression of ECM remodeling and EMT process genes, as well as TME immunosuppression. Gene set enrichment analyses demonstrated increased ECM pathways and concurrent decreased immune pathways in young relative to old patients. Transcripts per million of genetic markers involved in ECM remodeling including LAMB3, VCAN, S100A9, COL5A1, and ITGB2 were significantly increased in tumors of younger vs. older patients (adjusted p-value < 0.10). Young patient TMEs demonstrated a 2.5-fold reduction in CD8+ T-cells as compared to older patients (p < 0.05). Conclusion Differential gene expression impacting ECM remodeling and TME immunosuppression may contribute to disease progression in younger adult OSCC and has implications on response to evolving treatment modalities, such as immune checkpoint inhibitor therapy.
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Affiliation(s)
- Leonard E. Estephan
- Department of Otolaryngology - Head and Neck Surgery, Thomas Jefferson University Hospitals, Philadelphia, PA, United States
| | - Gaurav Kumar
- Sidney Kimmel Cancer Center, Thomas Jefferson University Hospitals, Philadelphia, PA, United States
- Department of Cancer Biology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Matthew Stewart
- Department of Otolaryngology - Head and Neck Surgery, Thomas Jefferson University Hospitals, Philadelphia, PA, United States
- Department of Internal Medicine, Cleveland Clinic Foundation, Cleveland, OH, United States
| | - Raphael Banoub
- Department of Otolaryngology - Head and Neck Surgery, Thomas Jefferson University Hospitals, Philadelphia, PA, United States
| | - Alban Linnenbach
- Sidney Kimmel Cancer Center, Thomas Jefferson University Hospitals, Philadelphia, PA, United States
- Department of Pharmacology, Physiology and Cancer Biology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Larry A. Harshyne
- Sidney Kimmel Cancer Center, Thomas Jefferson University Hospitals, Philadelphia, PA, United States
- Department of Medical Oncology, Thomas Jefferson University Hospitals, Philadelphia, PA, United States
| | - Ubaldo E. Martinez-Outschoorn
- Sidney Kimmel Cancer Center, Thomas Jefferson University Hospitals, Philadelphia, PA, United States
- Department of Medical Oncology, Thomas Jefferson University Hospitals, Philadelphia, PA, United States
| | - My G. Mahoney
- Department of Otolaryngology - Head and Neck Surgery, Thomas Jefferson University Hospitals, Philadelphia, PA, United States
- Department of Pharmacology, Physiology and Cancer Biology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Joseph M. Curry
- Department of Otolaryngology - Head and Neck Surgery, Thomas Jefferson University Hospitals, Philadelphia, PA, United States
- Sidney Kimmel Cancer Center, Thomas Jefferson University Hospitals, Philadelphia, PA, United States
| | - Jennifer Johnson
- Department of Otolaryngology - Head and Neck Surgery, Thomas Jefferson University Hospitals, Philadelphia, PA, United States
- Sidney Kimmel Cancer Center, Thomas Jefferson University Hospitals, Philadelphia, PA, United States
- Department of Medical Oncology, Thomas Jefferson University Hospitals, Philadelphia, PA, United States
| | - Andrew P. South
- Sidney Kimmel Cancer Center, Thomas Jefferson University Hospitals, Philadelphia, PA, United States
- Department of Pharmacology, Physiology and Cancer Biology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Adam J. Luginbuhl
- Department of Otolaryngology - Head and Neck Surgery, Thomas Jefferson University Hospitals, Philadelphia, PA, United States
- Sidney Kimmel Cancer Center, Thomas Jefferson University Hospitals, Philadelphia, PA, United States
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4
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Munno M, Mallia A, Greco A, Modafferi G, Banfi C, Eligini S. Radical Oxygen Species, Oxidized Low-Density Lipoproteins, and Lectin-like Oxidized Low-Density Lipoprotein Receptor 1: A Vicious Circle in Atherosclerotic Process. Antioxidants (Basel) 2024; 13:583. [PMID: 38790688 PMCID: PMC11118168 DOI: 10.3390/antiox13050583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/06/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
Atherosclerosis is a complex condition that involves the accumulation of lipids and subsequent plaque formation in the arterial intima. There are various stimuli, cellular receptors, and pathways involved in this process, but oxidative modifications of low-density lipoprotein (ox-LDL) are particularly important in the onset and progression of atherosclerosis. Ox-LDLs promote foam-cell formation, activate proinflammatory pathways, and induce smooth-muscle-cell migration, apoptosis, and cell death. One of the major receptors for ox-LDL is LOX-1, which is upregulated in several cardiovascular diseases, including atherosclerosis. LOX-1 activation in endothelial cells promotes endothelial dysfunction and induces pro-atherogenic signaling, leading to plaque formation. The binding of ox-LDLs to LOX-1 increases the generation of reactive oxygen species (ROS), which can induce LOX-1 expression and oxidize LDLs, contributing to ox-LDL generation and further upregulating LOX-1 expression. This creates a vicious circle that is amplified in pathological conditions characterized by high plasma levels of LDLs. Although LOX-1 has harmful effects, the clinical significance of inhibiting this protein remains unclear. Further studies both in vitro and in vivo are needed to determine whether LOX-1 inhibition could be a potential therapeutic target to counteract the atherosclerotic process.
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Affiliation(s)
- Marco Munno
- Unit of Functional Proteomics, Metabolomics and Network Analysis, Centro Cardiologico Monzino, 20138 Milan, Italy; (M.M.); (A.M.); (A.G.); (G.M.); (S.E.)
| | - Alice Mallia
- Unit of Functional Proteomics, Metabolomics and Network Analysis, Centro Cardiologico Monzino, 20138 Milan, Italy; (M.M.); (A.M.); (A.G.); (G.M.); (S.E.)
- Dipartimento di Biologia e Biotecnologie “Lazzaro Spallanzani”, Università di Pavia, 27100 Pavia, Italy
| | - Arianna Greco
- Unit of Functional Proteomics, Metabolomics and Network Analysis, Centro Cardiologico Monzino, 20138 Milan, Italy; (M.M.); (A.M.); (A.G.); (G.M.); (S.E.)
| | - Gloria Modafferi
- Unit of Functional Proteomics, Metabolomics and Network Analysis, Centro Cardiologico Monzino, 20138 Milan, Italy; (M.M.); (A.M.); (A.G.); (G.M.); (S.E.)
| | - Cristina Banfi
- Unit of Functional Proteomics, Metabolomics and Network Analysis, Centro Cardiologico Monzino, 20138 Milan, Italy; (M.M.); (A.M.); (A.G.); (G.M.); (S.E.)
| | - Sonia Eligini
- Unit of Functional Proteomics, Metabolomics and Network Analysis, Centro Cardiologico Monzino, 20138 Milan, Italy; (M.M.); (A.M.); (A.G.); (G.M.); (S.E.)
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Chaudhuri AG, Samanta S, Dey M, Raviraja NS, Dey S. Role of Alpha-Fetoprotein in the Pathogenesis of Cancer. J Environ Pathol Toxicol Oncol 2024; 43:57-76. [PMID: 38505913 DOI: 10.1615/jenvironpatholtoxicoloncol.2023049145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024] Open
Abstract
Alpha-fetoprotein (AFP) belongs to the albuminoid protein family and is considered as the fetal analog of serum albumin. This plasma protein is initially synthesized in the fetal liver and yolk sac and shows a maximum peak near the end of the first trimester. Later, concentrations begin to decline prenatally and drop precipitously after birth. This protein has three key ligand-binding pockets for interactions with various biomolecules. It contains multiple phosphorylation and acetylation sites for the regulation of physiological and pathophysiological states. High serum AFP titer is an established biomarker for yolk sac, embryonal and hepatocellular carcinoma. The present review critically analyzes the chemical nature, receptors, clinical implications, and therapeutic aspects of AFP, underpinning the development of different types of cancer.
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Affiliation(s)
- Alok Ghosh Chaudhuri
- Department of Physiology, Vidyasagar College, Kolkata 700 006, West Bengal, India
| | - Saptadip Samanta
- Department of Physiology, Midnapore College, Midnapore, Paschim Medinipur 721101, West Bengal, India
| | - Monalisha Dey
- Department of Physiology, Vidyasagar College, Kolkata 700 006, West Bengal, India
| | - N S Raviraja
- Manipal Centre for Biotherapeutics Research, Manipal Academy of Higher Education, Manipal 576 104, Karnataka, India
| | - Souvik Dey
- Manipal Centre for Biotherapeutics Research, Manipal Academy of Higher Education, Manipal 576 104, Karnataka, India
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Fetisov TI, Borunova AA, Antipova AS, Antoshina EE, Trukhanova LS, Gorkova TG, Zuevskaya SN, Maslov A, Gurova K, Gudkov A, Lesovaya EA, Belitsky GA, Yakubovskaya MG, Kirsanov KI. Targeting Features of Curaxin CBL0137 on Hematological Malignancies In Vitro and In Vivo. Biomedicines 2023; 11:biomedicines11010230. [PMID: 36672738 PMCID: PMC9856019 DOI: 10.3390/biomedicines11010230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/31/2022] [Accepted: 01/12/2023] [Indexed: 01/19/2023] Open
Abstract
The anticancer activity of Curaxin CBL0137, a DNA-binding small molecule with chromatin remodulating effect, has been demonstrated in different cancers. Herein, a comparative evaluation of CBL0137 activity was performed in respect to acute myeloid leukemia (AML), acute lymphoblastic leukemia (ALL), chronic myeloid leukemia and multiple myeloma (MM) cultured in vitro. MTT assay showed AML and MM higher sensitivity to CBL0137's cytostatic effect comparatively to other hematological malignancy cells. Flow cytometry cell cycle analysis revealed an increase in subG1 and G2/M populations after CBL0137 cell treatment, but the prevalent type of arrest varied. Apoptosis activation by CBL0137 measured by Annexin-V/PI dual staining was more active in AML and MM cells. RT2 PCR array showed that changes caused by CBL0137 in signaling pathways involved in cancer pathogenesis were more intensive in AML and MM cells. On the murine model of AML WEHI-3, CBL0137 showed significant anticancer effects in vivo, which were evaluated by corresponding changes in spleen and liver. Thus, more pronounced anticancer effects of CBL0137 in vitro were observed in respect to AML and MM. Experiments in vivo also indicated the perspective of CBL0137 use for AML treatment. This in accordance with the frontline treatment approach in AML using epigenetic drugs.
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Affiliation(s)
- Timur I. Fetisov
- N.N. Blokhin National Medical Research Center of Oncology, 115478 Moscow, Russia
| | - Anna A. Borunova
- N.N. Blokhin National Medical Research Center of Oncology, 115478 Moscow, Russia
| | - Alina S. Antipova
- N.N. Blokhin National Medical Research Center of Oncology, 115478 Moscow, Russia
| | - Elena E. Antoshina
- N.N. Blokhin National Medical Research Center of Oncology, 115478 Moscow, Russia
| | - Lubov S. Trukhanova
- N.N. Blokhin National Medical Research Center of Oncology, 115478 Moscow, Russia
| | - Tatyana G. Gorkova
- N.N. Blokhin National Medical Research Center of Oncology, 115478 Moscow, Russia
| | | | - Alexei Maslov
- Department of Cell Stress Biology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Katerina Gurova
- Department of Cell Stress Biology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Andrei Gudkov
- Department of Cell Stress Biology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14263, USA
| | - Ekaterina A. Lesovaya
- N.N. Blokhin National Medical Research Center of Oncology, 115478 Moscow, Russia
- Department of Oncology, I.P. Pavlov Ryazan State Medical University, 390026 Ryazan, Russia
| | - Gennady A. Belitsky
- N.N. Blokhin National Medical Research Center of Oncology, 115478 Moscow, Russia
| | | | - Kirill I. Kirsanov
- N.N. Blokhin National Medical Research Center of Oncology, 115478 Moscow, Russia
- Correspondence:
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7
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Zhang P, Zhao Y, Xia X, Mei S, Huang Y, Zhu Y, Yu S, Chen X. Expression of OLR1 gene on tumor-associated macrophages of head and neck squamous cell carcinoma, and its correlation with clinical outcome. Oncoimmunology 2023; 12:2203073. [PMID: 37089448 PMCID: PMC10120517 DOI: 10.1080/2162402x.2023.2203073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is one of the most heavily immune infiltrated human tumors, having distinct immune subtypes associated with different molecular characteristics and clinical outcomes. The tumor microenvironment (TME) of HNSCC which was dominated by tumor-associated macrophages (TAMs) had a relatively inferior prognosis. High levels of oxidized low-density lipoprotein receptor 1 (OLR1) expression are associated with more aggressive and metastatic characteristics in multiple cancers. However, the link between the OLR1 expression and immunosuppression of TME, and the molecular mechanisms which govern intratumoral TAMs behavior are unclear. Here, we performed the transcriptional analysis based on a single-cell RNA-sequencing (scRNA-seq) dataset of HNSCC, and found that the OLR1 expression was specifically enriched on the TAMs. Evaluation of protein expression within histologic sections of primary HNSCC patient samples showed a co-expression pattern of OLR1 and CD68 on macrophages. A total of 498 tumor samples of HNSCC patients from The Cancer Genome Atlas (TCGA) database were also analyzed. Remarkably, OLR1 expression was dramatically higher in HNSCC tissues than that in adjacent normal tissues, and the patients with high levels of OLR1 expression had significantly unfavorable overall survival (Hazard Ratio = 1.724, log-rank P-value = 0.0066) when compared to patients harboring low expression levels of OLR1. In summary, we reported that the specific expression of OLR1 on the TAMs was significantly correlated with poor survival outcomes, revealing that OLR1 could serve as a potential prognosis marker and promising target for immunotherapy in HNSCC.
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Affiliation(s)
- Peng Zhang
- Beijing Key Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute; MOE Key Laboratory of Major Diseases in Children; Rare Disease Center, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing, China
- CONTACT Peng Zhang Beijing Key Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute; MOE Key Laboratory of Major Diseases in Children; Rare Disease Center, Beijing Children’s Hospital, Capital Medical University, National Center for Children’s Health, Beijing100045, China
| | - Yan Zhao
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Xin Xia
- Department of Otolaryngology-Head and Neck Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Song Mei
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yixuan Huang
- Division of Immunotherapy, Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Yingying Zhu
- Department of Otolaryngology-Head and Neck Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Shuting Yu
- Department of Otolaryngology-Head and Neck Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Xingming Chen
- Department of Otolaryngology-Head and Neck Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Xingming Chen Department of Otolaryngology-Head and Neck Surgery, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing100005, China
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Wang C, Cheng L, Zhang Y, Zhao X, Zhang H, Shen Y. Bioinformatics analysis reveals the changes of peroxisome proliferator-activated receptor (PPAR) pathway in the development of Marjolin ulcers. ALL LIFE 2022. [DOI: 10.1080/26895293.2022.2124316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
Affiliation(s)
- Cheng Wang
- Department of Burns, Beijing Jishuitan Hospital, the Fourth Clinical Medical College of Peking University, Beijing, People's Republic of China
| | - Lin Cheng
- Department of Burns, Beijing Jishuitan Hospital, the Fourth Clinical Medical College of Peking University, Beijing, People's Republic of China
| | - Ying Zhang
- Department of Burns, Beijing Jishuitan Hospital, the Fourth Clinical Medical College of Peking University, Beijing, People's Republic of China
| | - Xiaozhuo Zhao
- Department of Burns, Beijing Jishuitan Hospital, the Fourth Clinical Medical College of Peking University, Beijing, People's Republic of China
| | - Huijun Zhang
- Department of Burns, Beijing Jishuitan Hospital, the Fourth Clinical Medical College of Peking University, Beijing, People's Republic of China
| | - Yuming Shen
- Department of Burns, Beijing Jishuitan Hospital, the Fourth Clinical Medical College of Peking University, Beijing, People's Republic of China
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9
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The New General Biological Property of Stem-like Tumor Cells (Part II: Surface Molecules, Which Belongs to Distinctive Groups with Particular Functions, Form a Unique Pattern Characteristic of a Certain Type of Tumor Stem-like Cells). Int J Mol Sci 2022; 23:ijms232415800. [PMID: 36555446 PMCID: PMC9785054 DOI: 10.3390/ijms232415800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 11/16/2022] [Accepted: 12/08/2022] [Indexed: 12/15/2022] Open
Abstract
An ability of poorly differentiated cells of different genesis, including tumor stem-like cells (TSCs), to internalize extracellular double-stranded DNA (dsDNA) fragments was revealed in our studies. Using the models of Krebs-2 murine ascites carcinoma and EBV-induced human B-cell lymphoma culture, we demonstrated that dsDNA internalization into the cell consists of several mechanistically distinct phases. The primary contact with cell membrane factors is determined by electrostatic interactions. Firm contacts with cell envelope proteins are then formed, followed by internalization into the cell of the complex formed between the factor and the dsDNA probe bound to it. The key binding sites were found to be the heparin-binding domains, which are constituents of various cell surface proteins of TSCs-either the C1q domain, the collagen-binding domain, or domains of positively charged amino acids. These results imply that the interaction between extracellular dsDNA fragments and the cell, as well as their internalization, took place with the involvement of glycocalyx components (proteoglycans/glycoproteins (PGs/GPs) and glycosylphosphatidylinositol-anchored proteins (GPI-APs)) and the system of scavenger receptors (SRs), which are characteristic of TSCs and form functional clusters of cell surface proteins in TSCs. The key provisions of the concept characterizing the principle of organization of the "group-specific" cell surface factors of TSCs of various geneses were formulated. These factors belong to three protein clusters: GPs/PGs, GIP-APs, and SRs. For TSCs of different tumors, these clusters were found to be represented by different members with homotypic functions corresponding to the general function of the cluster to which they belong.
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10
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Jehanathan N, Kapuruge EP, Rogers SP, Williams S, Chung Y, Borges CR. Oxidized LDL is stable in human serum under extended thawed-state conditions ranging from -20 °C to room temperature. J Mass Spectrom Adv Clin Lab 2022; 27:18-23. [PMID: 36578466 PMCID: PMC9791165 DOI: 10.1016/j.jmsacl.2022.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 12/04/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022] Open
Abstract
Introduction Oxidized LDL (oxLDL) is formed by the spontaneous reaction between aldehyde byproducts of lipid peroxidation and lysine residues of apolipoprotein B within LDL. Clinically, oxLDL is used as a marker of coronary artery disease and predictor of metabolic syndrome risk. Despite its popularity as a clinical marker, no systematic studies of oxLDL stability, in which serum or plasma has been pre-analytically exposed to an array of different time and temperature conditions, have been carried out. Objective To systematically evaluate the stability of oxLDL in human serum samples exposed to thawed conditions (> -30 °C) for varying periods of time while monitoring a second protein/small molecule redox system as a positive control for non-enzymatic biomolecular activity. Methods OxLDL was measured in serum samples, from 24 different humans, that had been pre-exposed to three different time courses at 23 °C, 4 °C and -20 °C using ELISA kits from Mercodia that employ the 4E6 mouse monoclonal antibody. A liquid chromatography/mass spectrometry-based marker of serum exposure to thawed conditions known as ΔS-Cys-Albumin was employed as a positive control. Results OxLDL was stable in serum exposed to 23 °C for up to 48 h, 4 °C for 21 days, or -20 °C for 65 days. ΔS-Cys-Albumin changed dramatically during these time courses (p < 0.001). Conclusions OxLDL is remarkably stable ex vivo in human serum samples exposed to thawed conditions.
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Affiliation(s)
- Nilojan Jehanathan
- School of Molecular Sciences, Arizona State University, Tempe, AZ 85287, United States,The Biodesign Institute at Arizona State University, Tempe, AZ 85287, United States
| | - Erandi P. Kapuruge
- School of Molecular Sciences, Arizona State University, Tempe, AZ 85287, United States,The Biodesign Institute at Arizona State University, Tempe, AZ 85287, United States
| | - Stephen P. Rogers
- The Biodesign Institute at Arizona State University, Tempe, AZ 85287, United States
| | - Stacy Williams
- The Biodesign Institute at Arizona State University, Tempe, AZ 85287, United States
| | - Yunro Chung
- The Biodesign Institute at Arizona State University, Tempe, AZ 85287, United States,College of Health Solutions, Arizona State University, Phoenix, AZ 85004, United States
| | - Chad R. Borges
- School of Molecular Sciences, Arizona State University, Tempe, AZ 85287, United States,The Biodesign Institute at Arizona State University, Tempe, AZ 85287, United States,Corresponding author at: The Biodesign Institute at Arizona State University, P.O. Box 876401, Tempe, AZ 85287, United States.
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11
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Tissue factor in cancer-associated thromboembolism: possible mechanisms and clinical applications. Br J Cancer 2022; 127:2099-2107. [PMID: 36097177 PMCID: PMC9467428 DOI: 10.1038/s41416-022-01968-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 08/19/2022] [Accepted: 08/22/2022] [Indexed: 01/29/2023] Open
Abstract
Venous and arterial thromboses, called as cancer-associated thromboembolism (CAT), are common complications in cancer patients that are associated with high mortality. The cell-surface glycoprotein tissue factor (TF) initiates the extrinsic blood coagulation cascade. TF is overexpressed in cancer cells and is a component of extracellular vesicles (EVs). Shedding of TF+EVs from cancer cells followed by association with coagulation factor VII (fVII) can trigger the blood coagulation cascade, followed by cancer-associated venous thromboembolism in some cancer types. Secretion of TF is controlled by multiple mechanisms of TF+EV biogenesis. The procoagulant function of TF is regulated via its conformational change. Thus, multiple steps participate in the elevation of plasma procoagulant activity. Whether cancer cell-derived TF is maximally active in the blood is unclear. Numerous mechanisms other than TF+EVs have been proposed as possible causes of CAT. In this review, we focused on a wide variety of regulatory and shedding mechanisms for TF, including the effect of SARS-CoV-2, to provide a broad overview for its role in CAT. Furthermore, we present the current technical issues in studying the relationship between CAT and TF.
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12
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Machine learning phenomics (MLP) combining deep learning with time-lapse-microscopy for monitoring colorectal adenocarcinoma cells gene expression and drug-response. Sci Rep 2022; 12:8545. [PMID: 35595808 PMCID: PMC9123013 DOI: 10.1038/s41598-022-12364-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 01/31/2022] [Indexed: 11/25/2022] Open
Abstract
High-throughput phenotyping is becoming increasingly available thanks to analytical and bioinformatics approaches that enable the use of very high-dimensional data and to the availability of dynamic models that link phenomena across levels: from genes to cells, from cells to organs, and through the whole organism. The combination of phenomics, deep learning, and machine learning represents a strong potential for the phenotypical investigation, leading the way to a more embracing approach, called machine learning phenomics (MLP). In particular, in this work we present a novel MLP platform for phenomics investigation of cancer-cells response to therapy, exploiting and combining the potential of time-lapse microscopy for cell behavior data acquisition and robust deep learning software architectures for the latent phenotypes extraction. A two-step proof of concepts is designed. First, we demonstrate a strict correlation among gene expression and cell phenotype with the aim to identify new biomarkers and targets for tailored therapy in human colorectal cancer onset and progression. Experiments were conducted on human colorectal adenocarcinoma cells (DLD-1) and their profile was compared with an isogenic line in which the expression of LOX-1 transcript was knocked down. In addition, we also evaluate the phenotypic impact of the administration of different doses of an antineoplastic drug over DLD-1 cells. Under the omics paradigm, proteomics results are used to confirm the findings of the experiments.
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13
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Su R, Jin C, Bu H, Xiang J, Zhou L, Jin C. Development and Validation of an Immune-Related Prognostic Signature in Cervical Cancer. Front Oncol 2022; 12:861392. [PMID: 35651784 PMCID: PMC9148954 DOI: 10.3389/fonc.2022.861392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 04/08/2022] [Indexed: 11/13/2022] Open
Abstract
Background Cervical cancer is the fourth most frequent gynecological malignancy across the world. Immunotherapies have proved to improve prognosis of cervical cancer. However, few studies on immune-related prognostic signature had been reported in cervical cancer. Methods Raw data and clinical information of cervical cancer samples were downloaded from TCGA and UCSC Xena website. Immunophenoscore of immune infiltration cells in cervical cancer samples was calculated through the ssGSEA method using GSVA package. WGCNA, Cox regression analysis, LASSO analysis, and GSEA analysis were performed to classify cervical cancer prognosis and explore the biological signaling pathway. Results There were eight immune infiltration cells associated with prognosis of cervical cancer. Through WGCNA, 153 genes from 402 immune-related genes were significantly correlated with prognosis of cervical cancer. A 15-gene signature demonstrated powerful predictive ability in prognosis of cervical cancer. GSEA analysis showed multiple signaling pathways containing Programmed cell death ligand-1 (PD-L1) expression and PD-1 checkpoint pathway differences between high-risk and low-risk groups. Furthermore, the 15-gene signature was associated with multiple immune cells and immune infiltration in tumor microenvironment. Conclusion The 15-gene signature is an effective potential prognostic classifier in the immunotherapies and surveillance of cervical cancer.
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Affiliation(s)
- Rongjia Su
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- Department of Gynecologic Oncology, International Peace Maternity and Child Health Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Chengwen Jin
- Department of Central Laboratory, Shanghai Chest Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Hualei Bu
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, Jinan, China
| | - Jiangdong Xiang
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Lina Zhou
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- *Correspondence: Chengjuan Jin, ; Lina Zhou,
| | - Chengjuan Jin
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- *Correspondence: Chengjuan Jin, ; Lina Zhou,
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14
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Lu Y, Jia Z. Inflammation-Related Gene Signature for Predicting the Prognosis of Head and Neck Squamous Cell Carcinoma. Int J Gen Med 2022; 15:4793-4805. [PMID: 35592543 PMCID: PMC9113041 DOI: 10.2147/ijgm.s354349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 04/13/2022] [Indexed: 12/14/2022] Open
Abstract
Purpose The inflammatory response was associated with the prognosis of head and neck squamous cell carcinoma (HNSCC). This study aimed to perform a novel prognostic signature based on inflammation-related genes (IRGs) for a better understanding of the prognosis of HNSCC. Patients and Methods IRGs were obtained from The Cancer Genome Atlas (TCGA) database and the Gene Expression Omnibus (GEO) database. Functional enrichment analysis was performed to explore potential pathways. Univariate and multivariate Cox regression as well as the Least Absolute Shrinkage and Selection Operator (LASSO) were utilized to construct an IRGs-based prognostic model on TCGA database and the GEO database was utilized for outcome validation. The nomogram model was constructed based on independent prognostic factors after univariate and multivariate Cox regression. The immune cell infiltration level was analyzed via the Tumor Immune Estimation Resource (TIMER) database. Results In this study, we confirmed that 60% IRGs were abnormally expressed in HNSCC samples, and these were associated with important oncobiology. Then, a prognostic signature comprising 7 hub genes was generated based on TCGA database. The results were validated in 97 patients from GSE41613. A nomogram comprising risk score, age, M stage and N stage was generated to improve the accuracy of prognosis evaluation. The immune cell infiltration analysis suggested that 5 hub genes (ADGRE1, OLR1, TIMP1, GPR132 and CCR7) were negatively correlated with tumor purity and positively correlated with the infiltration of immune cells. Conclusion Our study established a novel signature consisting of 7 hub genes for the prognostic prediction in patients with HNSCC.
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Affiliation(s)
- Yilong Lu
- School of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
| | - Zengrong Jia
- Thyroid Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
- Correspondence: Zengrong Jia, Thyroid Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325015, People’s Republic of China, Tel +86 135 874 22709, Fax +86 577 55578033, Email
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15
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Wang S, Zhen L, Li X, Fu X, Li P, Zhang D. Search for Key Genes and Functional Pathways of Ulcerative Colitis to Colon Cancer Based on Bioinformatics. Front Oncol 2022; 12:857148. [PMID: 35372018 PMCID: PMC8965385 DOI: 10.3389/fonc.2022.857148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 02/16/2022] [Indexed: 12/30/2022] Open
Abstract
Ulcerative colitis (UC) is a persistent and diffuse inflammatory disease of the intestine. It is widely prevalent in developed countries. Approximately 30% of patients with UC suffer from widespread and aggressive colitis and are at increased risk of colon cancer. In this study, the genetic features and potential molecular mechanisms shared between UC and colorectal cancer were investigated. The datasets from GEO and TCGA were analyzed to obtain differentially expressed genes, of which there were 116 overlapping genes. A module containing 15 genes was obtained using String and Cytoscape to analyze the module and identify hub genes. Weighted gene co-expression network analysis (WGCNA) was used to identify co-expression modules associated with UC and colon cancer, with 52 overlapping genes. Functional clustering of the two gene cohorts was performed using the Metascape online tool, with three significant functions or pathways associated with both gene cohorts. A total of 19 key genes were included, and CCT2 was identified after expression and survival analyses. CCT2 is highly expressed in colon cancer and lowly expressed in UC, and its low expression is associated with a poor prognostic ratio. This study reveals, for the first time, that CCT2 may be a promoter of UC transformation into colon cancer and identifies new gene candidates that could be used as biomarkers or potential therapeutic targets.
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Affiliation(s)
- Shengbao Wang
- Emergency Center, Gansu Emergency Medicine Clinical Research Center,Lanzhou University Second Hospital, Lanzhou, China
| | - Lingling Zhen
- Infectious Department, Lanzhou University Second Hospital, Lanzhou, China
| | - Xiaoli Li
- Digestive Department, Lanzhou University Second Hospital, Lanzhou, China
| | - Xu Fu
- Key Laboratory of Emergency Medicine, Lanzhou University Second Hospital, Lanzhou, China
| | - Peiwu Li
- Emergency Center, Gansu Emergency Medicine Clinical Research Center,Lanzhou University Second Hospital, Lanzhou, China
| | - Dekui Zhang
- Department of Gastroenterology, Key Laboratory of Digestive Diseases Lanzhou University Second Hospital, Lanzhou, China
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16
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Deng CF, Zhu N, Zhao TJ, Li HF, Gu J, Liao DF, Qin L. Involvement of LDL and ox-LDL in Cancer Development and Its Therapeutical Potential. Front Oncol 2022; 12:803473. [PMID: 35251975 PMCID: PMC8889620 DOI: 10.3389/fonc.2022.803473] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 01/12/2022] [Indexed: 01/17/2023] Open
Abstract
Lipid metabolism disorder is related to an increased risk of tumorigenesis and is involved in the rapid growth of cancer cells as well as the formation of metastatic lesions. Epidemiological studies have demonstrated that low-density lipoprotein (LDL) and oxidized low-density lipoprotein (ox-LDL) are closely associated with breast cancer, colorectal cancer, pancreatic cancer, and other malignancies, suggesting that LDL and ox-LDL play important roles during the occurrence and development of cancers. LDL can deliver cholesterol into cancer cells after binding to LDL receptor (LDLR). Activation of PI3K/Akt/mTOR signaling pathway induces transcription of the sterol regulatory element-binding proteins (SREBPs), which subsequently promotes cholesterol uptake and synthesis to meet the demand of cancer cells. Ox-LDL binds to the lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1) and cluster of differentiation 36 (CD36) to induce mutations, resulting in inflammation, cell proliferation, and metastasis of cancer. Classic lipid-lowering drugs, statins, have been shown to reduce LDL levels in certain types of cancer. As LDL and ox-LDL play complicated roles in cancers, the potential therapeutic effect of targeting lipid metabolism in cancer therapy warrants more investigation.
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Affiliation(s)
- Chang-Feng Deng
- Division of Stem Cell Regulation and Application, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Neng Zhu
- Department of Urology, The First Hospital of Hunan University of Chinese Medicine, Changsha, China
| | - Tan-Jun Zhao
- Division of Stem Cell Regulation and Application, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Hong-Fang Li
- Division of Stem Cell Regulation and Application, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Jia Gu
- Division of Stem Cell Regulation and Application, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Duan-Fang Liao
- Division of Stem Cell Regulation and Application, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
| | - Li Qin
- Division of Stem Cell Regulation and Application, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China
- Institutional Key Laboratory of Vascular Biology and Translational Medicine in Hunan Province, Hunan University of Chinese Medicine, Changsha, China
- *Correspondence: Li Qin,
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17
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Joshi H, Vastrad B, Joshi N, Vastrad C. Integrated bioinformatics analysis reveals novel key biomarkers in diabetic nephropathy. SAGE Open Med 2022; 10:20503121221137005. [PMID: 36385790 PMCID: PMC9661593 DOI: 10.1177/20503121221137005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 10/18/2022] [Indexed: 11/13/2022] Open
Abstract
Objectives: The underlying molecular mechanisms of diabetic nephropathy have yet not been investigated clearly. In this investigation, we aimed to identify key genes involved in the pathogenesis and prognosis of diabetic nephropathy. Methods: We downloaded next-generation sequencing data set GSE142025 from Gene Expression Omnibus database having 28 diabetic nephropathy samples and nine normal control samples. The differentially expressed genes between diabetic nephropathy and normal control samples were analyzed. Biological function analysis of the differentially expressed genes was enriched by Gene Ontology and REACTOME pathways. Then, we established the protein–protein interaction network, modules, miRNA-differentially expressed gene regulatory network and transcription factor-differentially expressed gene regulatory network. Hub genes were validated by using receiver operating characteristic curve analysis. Results: A total of 549 differentially expressed genes were detected including 275 upregulated and 274 downregulated genes. The biological process analysis of functional enrichment showed that these differentially expressed genes were mainly enriched in cell activation, integral component of plasma membrane, lipid binding, and biological oxidations. Analyzing the protein–protein interaction network, miRNA-differentially expressed gene regulatory network and transcription factor-differentially expressed gene regulatory network, we screened hub genes MDFI, LCK, BTK, IRF4, PRKCB, EGR1, JUN, FOS, ALB, and NR4A1 by the Cytoscape software. The receiver operating characteristic curve analysis confirmed that hub genes were of diagnostic value. Conclusions: Taken above, using integrated bioinformatics analysis, we have identified key genes and pathways in diabetic nephropathy, which could improve our understanding of the cause and underlying molecular events, and these key genes and pathways might be therapeutic targets for diabetic nephropathy.
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Affiliation(s)
- Harish Joshi
- Endocrine and Diabetes Care Center, Hubbali, India
| | - Basavaraj Vastrad
- Department of Pharmaceutical Chemistry, KLE Society’s College of Pharmacy, Gadag, India
| | - Nidhi Joshi
- Dr. D. Y. Patil Medical College, Kolhapur, India
| | - Chanabasayya Vastrad
- Biostatistics and Bioinformatics, Chanabasava Nilaya, Dharwad, India
- Chanabasayya Vastrad, Biostatistics and Bioinformatics, Chanabasava Nilaya, Bharthinagar, Dharwad 580001, India.
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18
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Diabetes and Colorectal Cancer Risk: A New Look at Molecular Mechanisms and Potential Role of Novel Antidiabetic Agents. Int J Mol Sci 2021; 22:ijms222212409. [PMID: 34830295 PMCID: PMC8622770 DOI: 10.3390/ijms222212409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/14/2021] [Accepted: 11/15/2021] [Indexed: 12/13/2022] Open
Abstract
Epidemiological data have demonstrated a significant association between the presence of type 2 diabetes mellitus (T2DM) and the development of colorectal cancer (CRC). Chronic hyperglycemia, insulin resistance, oxidative stress, and inflammation, the processes inherent to T2DM, also play active roles in the onset and progression of CRC. Recently, small dense low-density lipoprotein (LDL) particles, a typical characteristic of diabetic dyslipidemia, emerged as another possible underlying link between T2DM and CRC. Growing evidence suggests that antidiabetic medications may have beneficial effects in CRC prevention. According to findings from a limited number of preclinical and clinical studies, glucagon-like peptide-1 receptor agonists (GLP-1RAs) could be a promising strategy in reducing the incidence of CRC in patients with diabetes. However, available findings are inconclusive, and further studies are required. In this review, novel evidence on molecular mechanisms linking T2DM with CRC development, progression, and survival will be discussed. In addition, the potential role of GLP-1RAs therapies in CRC prevention will also be evaluated.
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19
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Murdocca M, De Masi C, Pucci S, Mango R, Novelli G, Di Natale C, Sangiuolo F. LOX-1 and cancer: an indissoluble liaison. Cancer Gene Ther 2021; 28:1088-1098. [PMID: 33402733 PMCID: PMC8571092 DOI: 10.1038/s41417-020-00279-0] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 11/19/2020] [Accepted: 11/30/2020] [Indexed: 02/06/2023]
Abstract
Recently, a strong correlation between metabolic disorders, tumor onset, and progression has been demonstrated, directing new therapeutic strategies on metabolic targets. OLR1 gene encodes the LOX-1 receptor protein, responsible for the recognition, binding, and internalization of ox-LDL. In the past, several studied, aimed to clarify the role of LOX-1 receptor in atherosclerosis, shed light on its role in the stimulation of the expression of adhesion molecules, pro-inflammatory signaling pathways, and pro-angiogenic proteins, including NF-kB and VEGF, in vascular endothelial cells and macrophages. In recent years, LOX-1 upregulation in different tumors evidenced its involvement in cancer onset, progression and metastasis. In this review, we outline the role of LOX-1 in tumor spreading and metastasis, evidencing its function in VEGF induction, HIF-1alpha activation, and MMP-9/MMP-2 expression, pushing up the neoangiogenic and the epithelial-mesenchymal transition process in glioblastoma, osteosarcoma prostate, colon, breast, lung, and pancreatic tumors. Moreover, our studies contributed to evidence its role in interacting with WNT/APC/β-catenin axis, highlighting new pathways in sporadic colon cancer onset. The application of volatilome analysis in high expressing LOX-1 tumor-bearing mice correlates with the tumor evolution, suggesting a closed link between LOX-1 upregulation and metabolic changes in individual volatile compounds and thus providing a viable method for a simple, non-invasive alternative monitoring of tumor progression. These findings underline the role of LOX-1 as regulator of tumor progression, migration, invasion, metastasis formation, and tumor-related neo-angiogenesis, proposing this receptor as a promising therapeutic target and thus enhancing current antineoplastic strategies.
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Affiliation(s)
- M Murdocca
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy.
| | - C De Masi
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - S Pucci
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - R Mango
- Cardiology Unit, Department of Emergency and Critical Care, Tor Vergata Hospital, Rome, Italy
| | - G Novelli
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - C Di Natale
- Department of Electronic Engineering, Tor Vergata University, Rome, Italy
| | - F Sangiuolo
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
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20
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Urine LOX-1 and Volatilome as Promising Tools towards the Early Detection of Renal Cancer. Cancers (Basel) 2021; 13:cancers13164213. [PMID: 34439368 PMCID: PMC8393749 DOI: 10.3390/cancers13164213] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 08/17/2021] [Accepted: 08/19/2021] [Indexed: 01/11/2023] Open
Abstract
Simple Summary Renal cell carcinoma (RCC) is often late diagnosed at an advanced stage, worsening the prognosis of the patients. Thus, an early marker is desirable. This paper presents an innovative combined approach useful to identify, for the first time, the presence of LOX-1 protein within the urine of clear cell RCC patients. The LOX-1 protein is related to metabolic disorder-associated carcinogenesis and is shown to be quantitatively correlated to tumor grade and stage. The analysis of volatile compounds released by urine shows the diagnostic potentialities of volatilome and indicates that at least one volatile compound is correlated with both LOX-1 and cancer. In this work, we propose the potential use of a noninvasive approach that enables an early, routine ccRCC diagnosis and leads to a better management of the patients. Abstract Renal cell carcinoma (RCC) represents around 3% of all cancers, within which clear cell RCC (ccRCC) are the most common type (70–75%). The RCC disease regularly progresses asymptomatically and upon presentation is recurrently metastatic, therefore, an early method of detection is necessary. The identification of one or more specific biomarkers measurable in biofluids (i.e., urine) by combined approaches could surely be appropriate for this kind of cancer, especially due to easy obtainability by noninvasive method. OLR1 is a metabolic gene that encodes for the Lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1), implicated in inflammation, atherosclerosis, ROS, and metabolic disorder-associated carcinogenesis. Specifically, LOX-1 is clearly involved in tumor insurgence and progression of different human cancers. This work reports for the first time the presence of LOX-1 protein in ccRCC urine and its peculiar distribution in tumoral tissues. The urine samples headspace has also been analyzed for the presence of the volatile compounds (VOCs) by SPME-GC/MS and gas sensor array. In particular, it was found by GC/MS analysis that 2-Cyclohexen-1-one,3-methyl-6-(1-methylethyl)- correlates with LOX-1 concentration in urine. The combined approach of VOCs analysis and protein quantification could lead to promising results in terms of diagnostic and prognostic potential for ccRCC tumors.
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21
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Eslahi M, Maleki Dana P, Sadoughi F, Hallajzadeh J, Asemi Z, Sharifi M, Mansournia MA, Yousefi B. The Effects of Sterol-Related Signaling Pathways on Glioma. Nutr Cancer 2021; 74:1527-1537. [PMID: 34338098 DOI: 10.1080/01635581.2021.1957488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Gliomas are considered as one of the important brain tumors in adults due to their impact on life quality and cognitive functions. Current methods that are used for treating glioma are not satisfying enough. Understanding cellular and molecular events underlying its pathogenesis and progression may lead to the discovery of novel therapeutic approaches. Sterols are a subtype of steroids and are essential for the physiologic functions of eukaryotic cells. Sterols can be produced by protozoans and microheterotrophs. Moreover, they are found in some natural sources, such as plants, animals, fungi, microalgae, and yeasts. Besides the roles of sterols in physiologic processes, studies have shown that they are involved in pathologic processes, including tumorigenesis and tumor progression. As investigations have revealed, sterol-related signaling pathways are involved in glioma and targeting them may result in new therapeutic options for patients. Thus, we summarized some of the sterol-related signaling pathways in glioma and how they can be associated with other signaling pathways, including EGFR/PI3K/Akt/mTOR, P53, and retinoblastoma protein.
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Affiliation(s)
- Masoumeh Eslahi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Parisa Maleki Dana
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Fatemeh Sadoughi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Jamal Hallajzadeh
- Department of Biochemistry and Nutrition, Research Center for Evidence-Based Health Management, Maragheh University of Medical Sciences, Maragheh, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Mehran Sharifi
- Department of Internal Medicine, School of Medicine, Cancer Prevention Research Center, Seyyed Al-Shohada Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Ali Mansournia
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Bahman Yousefi
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Biochemistry, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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22
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Wei Y, Huang Y, Yang W, Huang Q, Chen Y, Zeng K, Chen J, Chen J. The significances and clinical implications of cholesterol components in human breast cancer. Sci Prog 2021; 104:368504211028395. [PMID: 34510991 PMCID: PMC10450717 DOI: 10.1177/00368504211028395] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Breast cancer is one the most common malignancies and leading cause of cancer-related mortality in women. Recent studies suggested that hypercholesterolemia may be the potential modifiable risk factors for breast cancer. Cholesterol was well-known for its strong association with cardiovascular disease for long. Moreover, solid evidence has been provided by different studies to illustrate the correlation between lipid and incidence in multiple cancers. Although the conclusion remains controversial or sometimes contrary, which may be due to the multifactorial nature of the disease and the disparity of ethnic population, it is critical to elucidate the relationship between specific cholesterol components in certain population and the exact underlying mechanism of the lipid-associated signaling pathway in breast cancer. The implications of dysregulated lipoproteins as therapeutic targets or options for breast cancer provide novel strategies for us in combating with this malignant disease, which may be achieved by manipulating lipid levels with pharmacological compounds.
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Affiliation(s)
- Yanghui Wei
- Department of Surgery, The Eighth Affiliated Hospital, Sun Yat-Sen University, Shenzhen, China
| | - Yao Huang
- Department of Surgery, The Eighth Affiliated Hospital, Sun Yat-Sen University, Shenzhen, China
| | - Weiqin Yang
- School of Biomedical Sciences, The Chinese, University of Hong Kong, Hong Kong, China
| | - Qingnan Huang
- Department of Surgery, The Eighth Affiliated Hospital, Sun Yat-Sen University, Shenzhen, China
| | - Yong Chen
- Department of Surgery, The Eighth Affiliated Hospital, Sun Yat-Sen University, Shenzhen, China
| | - Kai Zeng
- Department of Surgery, The Eighth Affiliated Hospital, Sun Yat-Sen University, Shenzhen, China
| | - Juan Chen
- Department of Medicine & Rehabilitation, Tung Wah Eastern Hospital, Hong Kong, China
| | - Jiawei Chen
- Department of Surgery, The Eighth Affiliated Hospital, Sun Yat-Sen University, Shenzhen, China
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23
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Paul S, Bravo Vázquez LA, Uribe SP, Manzanero Cárdenas LA, Ruíz Aguilar MF, Chakraborty S, Sharma A. Roles of microRNAs in carbohydrate and lipid metabolism disorders and their therapeutic potential. Biochimie 2021; 187:83-93. [PMID: 34082043 DOI: 10.1016/j.biochi.2021.05.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 05/19/2021] [Accepted: 05/25/2021] [Indexed: 02/07/2023]
Abstract
MicroRNAs (miRNAs) are small (∼21 nucleotides), endogenous, non-coding RNA molecules implicated in the post-transcriptional gene regulation performed through target mRNA cleavage or translational inhibition. In recent years, several investigations have demonstrated that miRNAs are involved in regulating both carbohydrate and lipid homeostasis in humans and other organisms. Moreover, it has been observed that the dysregulation of these metabolism-related miRNAs leads to the development of several metabolic disorders, such as type 2 diabetes, obesity, nonalcoholic fatty liver, insulin resistance, and hyperlipidemia. Hence, in this current review, with the aim to impulse the research arena of the micro-transcriptome implications in vital metabolic pathways as well as to highlight the remarkable potential of miRNAs as therapeutic targets for metabolic disorders in humans, we provide an overview of the regulatory roles of metabolism-associated miRNAs in humans and murine models.
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Affiliation(s)
- Sujay Paul
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Queretaro, Av. Epigmenio Gonzalez, No. 500 Fracc, San Pablo, CP 76130, Querétaro, Mexico.
| | - Luis Alberto Bravo Vázquez
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Queretaro, Av. Epigmenio Gonzalez, No. 500 Fracc, San Pablo, CP 76130, Querétaro, Mexico
| | - Samantha Pérez Uribe
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Queretaro, Av. Epigmenio Gonzalez, No. 500 Fracc, San Pablo, CP 76130, Querétaro, Mexico
| | - Luis Aarón Manzanero Cárdenas
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Ciudad de Mexico, Calle del Puente, No. 222 Col. Ejidos de Huipulco, Tlalpan, CP 14380, Mexico City, Mexico
| | - María Fernanda Ruíz Aguilar
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Ciudad de Mexico, Calle del Puente, No. 222 Col. Ejidos de Huipulco, Tlalpan, CP 14380, Mexico City, Mexico
| | - Samik Chakraborty
- Division of Nephrology, Boston Children's Hospital, Harvard Medical School, MA, 02115, USA
| | - Ashutosh Sharma
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Queretaro, Av. Epigmenio Gonzalez, No. 500 Fracc, San Pablo, CP 76130, Querétaro, Mexico.
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Prashanth G, Vastrad B, Tengli A, Vastrad C, Kotturshetti I. Investigation of candidate genes and mechanisms underlying obesity associated type 2 diabetes mellitus using bioinformatics analysis and screening of small drug molecules. BMC Endocr Disord 2021; 21:80. [PMID: 33902539 PMCID: PMC8074411 DOI: 10.1186/s12902-021-00718-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 03/02/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Obesity associated type 2 diabetes mellitus is a metabolic disorder ; however, the etiology of obesity associated type 2 diabetes mellitus remains largely unknown. There is an urgent need to further broaden the understanding of the molecular mechanism associated in obesity associated type 2 diabetes mellitus. METHODS To screen the differentially expressed genes (DEGs) that might play essential roles in obesity associated type 2 diabetes mellitus, the publicly available expression profiling by high throughput sequencing data (GSE143319) was downloaded and screened for DEGs. Then, Gene Ontology (GO) and REACTOME pathway enrichment analysis were performed. The protein - protein interaction network, miRNA - target genes regulatory network and TF-target gene regulatory network were constructed and analyzed for identification of hub and target genes. The hub genes were validated by receiver operating characteristic (ROC) curve analysis and RT- PCR analysis. Finally, a molecular docking study was performed on over expressed proteins to predict the target small drug molecules. RESULTS A total of 820 DEGs were identified between healthy obese and metabolically unhealthy obese, among 409 up regulated and 411 down regulated genes. The GO enrichment analysis results showed that these DEGs were significantly enriched in ion transmembrane transport, intrinsic component of plasma membrane, transferase activity, transferring phosphorus-containing groups, cell adhesion, integral component of plasma membrane and signaling receptor binding, whereas, the REACTOME pathway enrichment analysis results showed that these DEGs were significantly enriched in integration of energy metabolism and extracellular matrix organization. The hub genes CEBPD, TP73, ESR2, TAB1, MAP 3K5, FN1, UBD, RUNX1, PIK3R2 and TNF, which might play an essential role in obesity associated type 2 diabetes mellitus was further screened. CONCLUSIONS The present study could deepen the understanding of the molecular mechanism of obesity associated type 2 diabetes mellitus, which could be useful in developing therapeutic targets for obesity associated type 2 diabetes mellitus.
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Affiliation(s)
- G Prashanth
- Department of General Medicine, Basaveshwara Medical College, Chitradurga, Karnataka, 577501, India
| | - Basavaraj Vastrad
- Department of Biochemistry, Basaveshwar College of Pharmacy, Gadag, Karnataka, 582103, India
| | - Anandkumar Tengli
- Department of Pharmaceutical Chemistry, JSS College of Pharmacy, Mysuru and JSS Academy of Higher Education & Research, Mysuru, Karnataka, 570015, India
| | - Chanabasayya Vastrad
- Biostatistics and Bioinformatics, Chanabasava Nilaya, Bharthinagar, Dharwad, Karnataka, 580001, India.
| | - Iranna Kotturshetti
- Department of Ayurveda, Rajiv Gandhi Education Society`s Ayurvedic Medical College, Ron, Karnataka, 582209, India
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Liu B, Wang Z, Gu M, Zhao C, Ma T, Wang J. GEO Data Mining Identifies OLR1 as a Potential Biomarker in NSCLC Immunotherapy. Front Oncol 2021; 11:629333. [PMID: 33959497 PMCID: PMC8095246 DOI: 10.3389/fonc.2021.629333] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 03/18/2021] [Indexed: 12/12/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) is the most common type of lung cancer. The tumor immune microenvironment (TME) in NSCLC is closely correlated to tumor initiation, progression, and prognosis. TME failure impedes the generation of an effective antitumor immune response. In this study, we attempted to explore TME and identify a potential biomarker for NSCLC immunotherapy. 48 potential immune-related genes were identified from 11 eligible Gene Expression Omnibus (GEO) data sets. We applied the CIBERSORT computational approach to quantify bulk gene expression profiles and thereby infer the proportions of 22 subsets of tumor-infiltrating immune cells (TICs); 16 kinds of TICs showed differential distributions between the tumor and control tissue samples. Multiple linear regression analysis was used to determine the correlation between TICs and 48 potential immune-related genes. Nine differential immune-related genes showed statistical significance. We analyzed the influence of nine differential immune-related genes on NSCLC immunotherapy, and OLR1 exhibited the strongest correlation with four well-recognized biomarkers (PD-L1, CD8A, GZMB, and NOS2) of immunotherapy. Differential expression of OLR1 showed its considerable potential to divide TICs distribution, as determined by non-linear dimensionality reduction analysis. In immunotherapy prediction analysis with the comparatively reliable tool TIDE, patients with higher OLR1 expression were predicted to have better immunotherapy outcomes, and OLR1 expression was potentially highly correlated with PD-L1 expression, the average of CD8A and CD8B, IFNG, and Merck18 expression, T cell dysfunction and exclusion potential, and other significant immunotherapy predictors. These findings contribute to the current understanding of TME with immunotherapy. OLR1 also shows potential as a predictor or a regulator in NSCLC immunotherapy.
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Affiliation(s)
- Bin Liu
- Department of Cellular and Molecular Biology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Ziyu Wang
- Department of Cellular and Molecular Biology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Meng Gu
- Department of Cellular and Molecular Biology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Cong Zhao
- Department of Cellular and Molecular Biology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Teng Ma
- Department of Cellular and Molecular Biology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Jinghui Wang
- Department of Cellular and Molecular Biology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China.,Department of Medical Oncology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
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26
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Noncoding RNAs Associated with Therapeutic Resistance in Pancreatic Cancer. Biomedicines 2021; 9:biomedicines9030263. [PMID: 33799952 PMCID: PMC7998345 DOI: 10.3390/biomedicines9030263] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 02/26/2021] [Accepted: 03/02/2021] [Indexed: 02/06/2023] Open
Abstract
Therapeutic resistance is an inevitable impediment towards effective cancer therapies. Evidence accumulated has shown that the signaling pathways and related factors are fundamentally responsible for therapeutic resistance via regulating diverse cellular events, such as epithelial-to-mesenchymal transition (EMT), stemness, cell survival/apoptosis, autophagy, etcetera. Noncoding RNAs (ncRNAs) have been identified as essential cellular components in gene regulation. The expression of ncRNAs is altered in cancer, and dysregulated ncRNAs participate in gene regulatory networks in pathological contexts. An in-depth understanding of molecular mechanisms underlying the modulation of therapeutic resistance is required to refine therapeutic benefits. This review presents an overview of the recent evidence concerning the role of human ncRNAs in therapeutic resistance, together with the feasibility of ncRNAs as therapeutic targets in pancreatic cancer.
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27
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Deletion of Trim28 in committed adipocytes promotes obesity but preserves glucose tolerance. Nat Commun 2021; 12:74. [PMID: 33397965 PMCID: PMC7782476 DOI: 10.1038/s41467-020-20434-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 12/01/2020] [Indexed: 12/19/2022] Open
Abstract
The effective storage of lipids in white adipose tissue (WAT) critically impacts whole body energy homeostasis. Many genes have been implicated in WAT lipid metabolism, including tripartite motif containing 28 (Trim28), a gene proposed to primarily influence adiposity via epigenetic mechanisms in embryonic development. However, in the current study we demonstrate that mice with deletion of Trim28 specifically in committed adipocytes, also develop obesity similar to global Trim28 deletion models, highlighting a post-developmental role for Trim28. These effects were exacerbated in female mice, contributing to the growing notion that Trim28 is a sex-specific regulator of obesity. Mechanistically, this phenotype involves alterations in lipolysis and triglyceride metabolism, explained in part by loss of Klf14 expression, a gene previously demonstrated to modulate adipocyte size and body composition in a sex-specific manner. Thus, these findings provide evidence that Trim28 is a bona fide, sex specific regulator of post-developmental adiposity and WAT function.
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28
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Wang H, Du S, Cai J, Wang J, Shen X. Apolipoprotein E2 Promotes the Migration and Invasion of Pancreatic Cancer Cells via Activation of the ERK1/2 Signaling Pathway. Cancer Manag Res 2020; 12:13161-13171. [PMID: 33376407 PMCID: PMC7764636 DOI: 10.2147/cmar.s284115] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 12/11/2020] [Indexed: 12/12/2022] Open
Abstract
Background Apolipoprotein E2 (ApoE2) is reported to be essential for cell metastasis and proliferation and has been considered a potential diagnostic marker in many cancers. However, the function of ApoE2 in the metastasis of pancreatic cancer, as well as the underlying mechanism, remain unclear. Purpose In this study, we explored the effect of ApoE2 on the migration and invasion abilities of pancreatic cancer cells and explored the underlying molecular mechanism. Methods and Results Wound healing and Matrigel Transwell assays were used to investigate the role of ApoE2 in cell migration and invasion. Western blotting analysis showed that ApoE2 was overexpressed in pancreatic cancer tissues. Additionally, the overexpression of ApoE2 promoted the process of epithelial–mesenchymal transition (EMT) and enhanced the expression of MMP-2/9 in pancreatic cancer cells. Mechanistically, we found that inhibition of ERK1/2 signaling with PD98059 impaired the ApoE2-mediated promotion of cell migration, invasion and EMT. Conclusion This study demonstrated that ApoE2/ERK1/2 signaling promoted the migration and invasion of pancreatic cancer cells. ApoE2 might be a potential therapeutic target for the treatment of pancreatic cancer metastasis.
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Affiliation(s)
- Hui Wang
- School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Shaoxia Du
- School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Jun Cai
- School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Juan Wang
- School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
| | - Xiaohong Shen
- School of Medicine, Nankai University, Tianjin 300071, People's Republic of China
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29
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Casanova NG, Gonzalez-Garay ML, Sun B, Bime C, Sun X, Knox KS, Crouser ED, Sammani N, Gonzales T, Natt B, Chaudhary S, Lussier Y, Garcia JGN. Differential transcriptomics in sarcoidosis lung and lymph node granulomas with comparisons to pathogen-specific granulomas. Respir Res 2020; 21:321. [PMID: 33276795 PMCID: PMC7716494 DOI: 10.1186/s12931-020-01537-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 10/06/2020] [Indexed: 12/15/2022] Open
Abstract
RATIONALE Despite the availability of multi-"omics" strategies, insights into the etiology and pathogenesis of sarcoidosis have been elusive. This is partly due to the lack of reliable preclinical models and a paucity of validated biomarkers. As granulomas are a key feature of sarcoidosis, we speculate that direct genomic interrogation of sarcoid tissues, may lead to identification of dysregulated gene pathways or biomarker signatures. OBJECTIVE To facilitate the development sarcoidosis genomic biomarkers by gene expression profiling of sarcoidosis granulomas in lung and lymph node tissues (most commonly affected organs) and comparison to infectious granulomas (coccidiodomycosis and tuberculosis). METHODS Transcriptomic profiles of immune-related gene from micro-dissected sarcoidosis granulomas within lung and mediastinal lymph node tissues and compared to infectious granulomas from paraffin-embedded blocks. Differentially-expressed genes (DEGs) were profiled, compared among the three granulomatous diseases and analyzed for functional enrichment pathways. RESULTS Despite histologic similarities, DEGs and pathway enrichment markedly differed in sarcoidosis granulomas from lymph nodes and lung. Lymph nodes showed a clear immunological response, whereas a structural regenerative response was observed in lung. Sarcoidosis granuloma gene expression data corroborated previously reported genomic biomarkers (STAB1, HBEGF, and NOTCH4), excluded others and identified new genomic markers present in lung and lymph nodes, ADAMTS1, NPR1 and CXCL2. Comparisons between sarcoidosis and pathogen granulomas identified pathway divergences and commonalities at gene expression level. CONCLUSION These findings suggest the importance of tissue and disease-specificity evaluation when exploring sarcoidosis genomic markers. This relevant translational information in sarcoidosis and other two histopathological similar infections provides meaningful specific genomic-derived biomarkers for sarcoidosis diagnosis and prognosis.
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Affiliation(s)
- Nancy G Casanova
- Department of Medicine, College of Medicine, University of Arizona Health Sciences, Tucson, AZ, USA
| | - Manuel L Gonzalez-Garay
- Department of Medicine, College of Medicine, University of Arizona Health Sciences, Tucson, AZ, USA
| | - Belinda Sun
- Department of Medicine, College of Medicine, University of Arizona Health Sciences, Tucson, AZ, USA
| | - Christian Bime
- Department of Medicine, College of Medicine, University of Arizona Health Sciences, Tucson, AZ, USA
| | - Xiaoguang Sun
- Department of Medicine, College of Medicine, University of Arizona Health Sciences, Tucson, AZ, USA
| | - Kenneth S Knox
- Department of Medicine, College of Medicine, University of Arizona, Phoenix, AZ, USA
| | - Elliott D Crouser
- Division of Pulmonary and Critical Care Medicine, The Ohio State University, Columbus, OH, USA
| | - Nora Sammani
- Department of Medicine, College of Medicine, University of Arizona Health Sciences, Tucson, AZ, USA
| | - Taylor Gonzales
- Department of Medicine, College of Medicine, University of Arizona Health Sciences, Tucson, AZ, USA
| | - Bhupinder Natt
- Department of Medicine, College of Medicine, University of Arizona Health Sciences, Tucson, AZ, USA
| | - Sachin Chaudhary
- Department of Medicine, College of Medicine, University of Arizona Health Sciences, Tucson, AZ, USA
| | - Yves Lussier
- Department of Medicine, College of Medicine, University of Arizona Health Sciences, Tucson, AZ, USA
| | - Joe G N Garcia
- Department of Medicine, College of Medicine, University of Arizona Health Sciences, Tucson, AZ, USA.
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30
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Revilla G, Cedó L, Tondo M, Moral A, Pérez JI, Corcoy R, Lerma E, Fuste V, Reddy ST, Blanco-Vaca F, Mato E, Escolà-Gil JC. LDL, HDL and endocrine-related cancer: From pathogenic mechanisms to therapies. Semin Cancer Biol 2020; 73:134-157. [PMID: 33249202 DOI: 10.1016/j.semcancer.2020.11.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 10/19/2020] [Accepted: 11/16/2020] [Indexed: 02/07/2023]
Abstract
Cholesterol is essential for a variety of functions in endocrine-related cells, including hormone and steroid production. We have reviewed the progress to date in research on the role of the main cholesterol-containing lipoproteins; low-density lipoprotein (LDL) and high-density lipoprotein (HDL), and their impact on intracellular cholesterol homeostasis and carcinogenic pathways in endocrine-related cancers. Neither LDL-cholesterol (LDL-C) nor HDL-cholesterol (HDL-C) was consistently associated with endocrine-related cancer risk. However, preclinical studies showed that LDL receptor plays a critical role in endocrine-related tumor cells, mainly by enhancing circulating LDL-C uptake and modulating tumorigenic signaling pathways. Although scavenger receptor type BI-mediated uptake of HDL could enhance cell proliferation in breast, prostate, and ovarian cancer, these effects may be counteracted by the antioxidant and anti-inflammatory properties of HDL. Moreover, 27-hydroxycholesterol a metabolite of cholesterol promotes tumorigenic processes in breast and epithelial thyroid cancer. Furthermore, statins have been reported to reduce the incidence of breast, prostate, pancreatic, and ovarian cancer in large clinical trials, in part because of their ability to lower cholesterol synthesis. Overall, cholesterol homeostasis deregulation in endocrine-related cancers offers new therapeutic opportunities, but more mechanistic studies are needed to translate the preclinical findings into clinical therapies.
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Affiliation(s)
- Giovanna Revilla
- Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau, Institut d'Investigacions Biomèdiques (IIB) Sant Pau, C/ Sant Quintí 77, 08041 Barcelona Spain; Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, C/ Antoni M. Claret 167, 08025 Barcelona, Spain
| | - Lídia Cedó
- Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau, Institut d'Investigacions Biomèdiques (IIB) Sant Pau, C/ Sant Quintí 77, 08041 Barcelona Spain; CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Mireia Tondo
- Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau, Institut d'Investigacions Biomèdiques (IIB) Sant Pau, C/ Sant Quintí 77, 08041 Barcelona Spain; Servei de Bioquímica, Hospital de la Santa Creu i Sant Pau, C/ Sant Quintí 89, 08041 Barcelona, Spain
| | - Antonio Moral
- Department of General Surgery, Hospital de la Santa Creu i Sant Pau, C/ Sant Quintí 89, 08041 Barcelona, Spain; Departament de Medicina, Universitat Autònoma de Barcelona, C/ Antoni M. Claret 167, 08025 Barcelona, Spain
| | - José Ignacio Pérez
- Department of General Surgery, Hospital de la Santa Creu i Sant Pau, C/ Sant Quintí 89, 08041 Barcelona, Spain
| | - Rosa Corcoy
- Departament de Medicina, Universitat Autònoma de Barcelona, C/ Antoni M. Claret 167, 08025 Barcelona, Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain; Department of Endocrinology and Nutrition, Hospital de la Santa Creu i Sant Pau, C/ Sant Quintí 89, 08041 Barcelona, Spain
| | - Enrique Lerma
- Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau, Institut d'Investigacions Biomèdiques (IIB) Sant Pau, C/ Sant Quintí 77, 08041 Barcelona Spain; Department of Anatomic Pathology, Hospital de la Santa Creu i Sant Pau, C/ Sant Quintí 89, 08041 Barcelona, Spain
| | - Victoria Fuste
- Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau, Institut d'Investigacions Biomèdiques (IIB) Sant Pau, C/ Sant Quintí 77, 08041 Barcelona Spain; Department of Anatomic Pathology, Hospital de la Santa Creu i Sant Pau, C/ Sant Quintí 89, 08041 Barcelona, Spain
| | - Srivinasa T Reddy
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, CA, 90095-1736, USA
| | - Francisco Blanco-Vaca
- Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau, Institut d'Investigacions Biomèdiques (IIB) Sant Pau, C/ Sant Quintí 77, 08041 Barcelona Spain; Servei de Bioquímica, Hospital de la Santa Creu i Sant Pau, C/ Sant Quintí 89, 08041 Barcelona, Spain.
| | - Eugènia Mato
- Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau, Institut d'Investigacions Biomèdiques (IIB) Sant Pau, C/ Sant Quintí 77, 08041 Barcelona Spain; CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), C/ Monforte de Lemos 3-5, 28029 Madrid, Spain.
| | - Joan Carles Escolà-Gil
- Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau, Institut d'Investigacions Biomèdiques (IIB) Sant Pau, C/ Sant Quintí 77, 08041 Barcelona Spain.
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31
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Tang Y, Hu Y, Wang J, Zeng Z. A novel risk score based on a combined signature of 10 immune system genes to predict bladder cancer prognosis. Int Immunopharmacol 2020; 87:106851. [PMID: 32763782 DOI: 10.1016/j.intimp.2020.106851] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/20/2020] [Accepted: 07/26/2020] [Indexed: 12/19/2022]
Abstract
Bladder cancer (BC) is a common internal malignant tumor with a poor prognosis worldwide. There is an urgent need to better understand the pathogenesis and progression of BC and to find useful biomarkers for diagnosis and prognosis. This study was aimed at developing a potential immunogenomic prognostic signature for BC patients. To identify possible immune-system-related genes (IRGs) whose parameters predict the survival of BC patients, we chose 371 BC patients and analyzed differentially expressed IRGs from The Cancer Genome Atlas (TCGA) datasets. We then derived a 10-IRG formula, including MMP9, RBP7, PDGFRA, AHNAK, OAS1, OLR1, RAC3, SLIT2, IGF1, and AGTR1, to estimate BC prognosis. To validate the mRNA levels of these IRGs, we performed quantitative PCR and found that the expression of these genes almost matched the corresponding mRNA expression levels in TCGA. Furthermore, we validated the prognostic value of the new risk model using two external datasets from Gene Expression Omnibus: GSE13507 (n = 165) and GSE32894 (n = 224). Our data pointed to a significant correlation between the risk model and patients' prognosis. Bioinformatic analysis revealed that products of the IRGs have possible effects on tumor immune processes such as an inflammatory response and cytokine-cytokine receptor interaction. Finally, assessment of the clinical value of the immune-system-based risk signature showed that several of these IRGs were differentially expressed between patients with different clinical characteristics: a high risk score positively correlated with female sex, advanced tumor stage, more advanced T stage, and lymph node metastasis. This immunogenomic signature may represents a reliable prognostic tool for BC and can help to design an individualized immunotherapy.
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Affiliation(s)
- Yunliang Tang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China; Department of Critical Care Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Yangyang Hu
- Department of Pharmacology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Jiao Wang
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
| | - Zhenguo Zeng
- Department of Critical Care Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
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32
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Oxidized LDL Modify the Human Adipocyte Phenotype to an Insulin Resistant, Proinflamatory and Proapoptotic Profile. Biomolecules 2020; 10:biom10040534. [PMID: 32244787 PMCID: PMC7226150 DOI: 10.3390/biom10040534] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/19/2020] [Accepted: 03/25/2020] [Indexed: 12/17/2022] Open
Abstract
Little information exists in humans on the regulation that oxidized low-density lipoprotein (oxLDL) exerts on adipocyte metabolism, which is associated with obesity and type 2 diabetes. The aim was to analyze the oxLDL effects on adipocytokine secretion and scavenger receptors (SRs) and cell death markers in human visceral adipocytes. Human differentiated adipocytes from visceral adipose tissue from non-obese and morbidly obese subjects were incubated with increasing oxLDL concentrations. mRNA expression of SRs, markers of apoptosis and autophagy, secretion of adipocytokines, and glucose uptake were analyzed. In non-obese and in morbidly obese subjects, oxLDL produced a decrease in insulin-induced glucose uptake, a significant dose-dependent increase in tumor necrosis factor-α (TNF-α), IL-6, and adiponectin secretion, and a decrease in leptin secretion. OxLDL produced a significant increase of Lox-1 and a decrease in Cxcl16 and Cl-p1 expression. The expression of Bnip3 (marker of apoptosis, necrosis and autophagy) was significantly increased and Bcl2 (antiapoptotic marker) was decreased. OxLDL could sensitize adipocytes to a lower insulin-induced glucose uptake, a more proinflammatory phenotype, and could modify the gene expression involved in apoptosis, autophagy, necrosis, and mitophagy. OxLDL can upregulate Lox-1, and this could lead to a possible amplification of proinflammatory and proapoptotic effects of oxLDL.
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33
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Hallal S, Russell BP, Wei H, Lee MYT, Toon CW, Sy J, Shivalingam B, Buckland ME, Kaufman KL. Extracellular Vesicles from Neurosurgical Aspirates Identifies Chaperonin Containing TCP1 Subunit 6A as a Potential Glioblastoma Biomarker with Prognostic Significance. Proteomics 2020; 19:e1800157. [PMID: 30451371 DOI: 10.1002/pmic.201800157] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 11/01/2018] [Indexed: 12/13/2022]
Abstract
Glioblastoma, WHO-grade IV glioma, carries a dismal prognosis owing to its infiltrative growth and limited treatment options. Glioblastoma-derived extracellular vesicles (EVs; 30-1000 nm membranous particles) influence the microenvironment to mediate tumor aggressiveness and carry oncogenic cargo across the blood-brain barrier into the circulation. As such, EVs are biomarker reservoirs with enormous potential for assessing glioblastoma tumors in situ. Neurosurgical aspirates are rich sources of EVs, isolated directly from glioma microenvironments. EV proteomes enriched from glioblastoma (n = 15) and glioma grade II-III (n = 7) aspirates are compared and 298 differentially-abundant proteins (p-value < 0.00496) are identified using quantitative LC-MS/MS. Along with previously reported glioblastoma-associated biomarkers, levels of all eight subunits of the key molecular chaperone, T-complex protein 1 Ring complex (TRiC), are higher in glioblastoma-EVs, including CCT2, CCT3, CCT5, CCT6A, CCT7, and TCP1 (p < 0.00496). Analogous increases in TRiC transcript levels and DNA copy numbers are detected in silico; CCT6A has the greatest induction of expression and amplification in glioblastoma and shows a negative association with survival (p = 0.006). CCT6A is co-localized with EGFR at 7p11.2, with a strong tendency for co-amplification (p < 0.001). Immunohistochemistry corroborates the CCT6A proteomics measurements and indicated a potential link between EGFR and CCT6A tissue expression. Putative EV-biomarkers described here should be further assessed in peripheral blood.
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Affiliation(s)
- Susannah Hallal
- Brainstorm Brain Cancer Research, Brain and Mind Centre, University of Sydney, NSW, Australia.,Sydney Medical School, University of Sydney, NSW, Australia
| | | | - Heng Wei
- Brainstorm Brain Cancer Research, Brain and Mind Centre, University of Sydney, NSW, Australia.,Department of Neuropathology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - Maggie Yuk T Lee
- Brainstorm Brain Cancer Research, Brain and Mind Centre, University of Sydney, NSW, Australia.,Department of Neuropathology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | | | - Joanne Sy
- Brainstorm Brain Cancer Research, Brain and Mind Centre, University of Sydney, NSW, Australia.,Department of Neuropathology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - Brindha Shivalingam
- Brainstorm Brain Cancer Research, Brain and Mind Centre, University of Sydney, NSW, Australia.,Department of Neurosurgery, Chris O'Brien Lifehouse, Camperdown, NSW, Australia
| | - Michael E Buckland
- Brainstorm Brain Cancer Research, Brain and Mind Centre, University of Sydney, NSW, Australia.,Sydney Medical School, University of Sydney, NSW, Australia.,Department of Neuropathology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - Kimberley L Kaufman
- Brainstorm Brain Cancer Research, Brain and Mind Centre, University of Sydney, NSW, Australia.,Department of Neuropathology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia.,School of Life and Environmental Science, University of Sydney, NSW, Australia
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Ryu S, Howland A, Song B, Youn C, Song PI. Scavenger Receptor Class A to E Involved in Various Cancers. Chonnam Med J 2020; 56:1-5. [PMID: 32021835 PMCID: PMC6976765 DOI: 10.4068/cmj.2020.56.1.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 12/26/2019] [Accepted: 01/03/2020] [Indexed: 12/26/2022] Open
Abstract
Scavenger receptors typically bind to multiple ligands on a cell surface, including endogenous and modified host-derived molecules and microbial pathogens. They promote the elimination of degraded or harmful substances such as non-self or altered-self targets through endocytosis, phagocytosis, and adhesion. Currently, scavenger receptors are subdivided into eight classes based on several variations in their sequences due to alternative splicing. Since recent studies indicate targeting scavenger receptors has been involved in cancer prognosis and carcinogenesis, we will focus on the current knowledge about the emerging role of scavenger receptor classes A to E in cancer progression.
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Affiliation(s)
- Sunhyo Ryu
- Boston University School of Medicine, Boston, MA, USA
| | - Amanda Howland
- University of Colorado Denver School of Medicine, Aurora, CO, USA
| | | | - Chakyung Youn
- Department of Biomedical Science, Research Center for Proteinaceous Materials, Chosun University School of Medicine, Gwangju, Korea
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Yang G, Xiong G, Feng M, Zhao F, Qiu J, Liu Y, Cao Z, Wang H, Yang J, You L, Zheng L, Zhang T, Zhao Y. OLR1 Promotes Pancreatic Cancer Metastasis via Increased c-Myc Expression and Transcription of HMGA2. Mol Cancer Res 2020; 18:685-697. [PMID: 32019809 DOI: 10.1158/1541-7786.mcr-19-0718] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 11/23/2019] [Accepted: 01/31/2020] [Indexed: 11/16/2022]
Abstract
Pancreatic cancer is one of the most lethal human malignancies, partly because of its propensity for metastasis. However, the mechanisms of metastasis in pancreatic cancer remain unclear. Oxidized low-density lipoprotein receptor 1 (OLR1), a lectin-like scavenger receptor that recognizes several ligands, such as oxidized low-density lipoprotein, was previously reported in cardiovascular and metabolic diseases. The role and mechanism of OLR1 in pancreatic cancer is unclear. In this study, we found that OLR1 expression was significantly higher in pancreatic cancer tissues than that in adjacent normal tissues and closely associated with reduced overall survival. OLR1 promoted proliferation and metastasis of pancreatic cancer cells in vitro and in vivo. Mechanistically, OLR1 increased HMGA2 transcription by upregulating c-Myc expression to promote the metastasis of pancreatic cancer cells. In addition, patients with pancreatic cancer with high expression of OLR1-c-Myc-HMGA2 axis showed worse prognosis compared with patients with low expression of OLR1-c-Myc-HMGA2 axis. IMPLICATIONS: Our findings suggested that the OLR1-c-Myc-HMGA2 axis promotes metastasis of pancreatic cancer cells and may serve as potential therapeutic targets and prognosis markers for patients with pancreatic cancer.
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Affiliation(s)
- Gang Yang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Guangbing Xiong
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Mengyu Feng
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Fangyu Zhao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiangdong Qiu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yueze Liu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zhe Cao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Huanyu Wang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jinshou Yang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lei You
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lianfang Zheng
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Taiping Zhang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China. .,Clinical Immunology Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yupei Zhao
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
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Yang H, Wang Q, Han L, Yang X, Zhao W, Lyu L, Wang L, Yan H, Che C. Nerolidol inhibits the LOX-1 / IL-1β signaling to protect against the Aspergillus fumigatus keratitis inflammation damage to the cornea. Int Immunopharmacol 2020; 80:106118. [PMID: 31926445 DOI: 10.1016/j.intimp.2019.106118] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 12/01/2019] [Accepted: 12/07/2019] [Indexed: 12/30/2022]
Abstract
PURPOSE Nerolidol, a naturally occurring sesquiterpene has both anti-microbial and anti-inflammatory properties. The current study aims to investigate the antifungal and the anti-inflammatory effects of nerolidol against mouse Aspergillus fumigatus (A. fumigatus) keratitis. METHODS The minimum inhibitory concentration (MIC) and cytotoxicity tests were used to study the antifungal ability. For in vivo and in vitro studies, the mouse corneas and the human corneal epithelial cells (HCECs) infected with A. fumigatus spores were intervented with nerolidol or phosphate buffer saline (PBS). Thereafter, the effect of the nerolidol on the response against inflammation was analyzed using the following parameters: recruitment of the neutrophils or macrophages and the expression of the lectin-type oxidized low density lipoprotein receptor-1 (LOX-1) and interleukin 1β (IL-1β). Techniques used were the slit lamp, immunofluorescence, myeloperoxidase (MPO) detection, quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot. RESULTS Nerolidol directly inhibits the growth of A. fumigatus. The administration of nerolidol reduced the severity of fungal keratitis with infiltration of fewer inflammatory cells and reduced levels of the LOX-1, as well the anti-inflammatory cytokines such as IL-1β were reduced compared with the PBS group. Additionally, in vitro studies showed that treatment with nerolidol inhibited the production of the LOX-1 / IL-1β levels in A. fumigatus stimulated HCECs. CONCLUSION Nerolidol attenuated the A. fumigatus keratitis inflammatory response by inhibiting the growth of A. fumigatus, reducing the recruitment of the neutrophils and the macrophages, and inhibiting the LOX-1/ IL-1β signaling.
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Affiliation(s)
- Hua Yang
- Department of Ophthalmology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Qian Wang
- Department of Ophthalmology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Lin Han
- Gout Laboratory, the Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Xuejiao Yang
- Department of Ophthalmology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Wenyi Zhao
- Department of Ophthalmology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Leyu Lyu
- Department of Ophthalmology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Limei Wang
- Department of Ophthalmology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Haijing Yan
- Department of Ophthalmology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Chengye Che
- Department of Ophthalmology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China.
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Chen S, Li X, Wen X, Peng S, Xue N, Xing S, Liu Y. Prognostic nomogram integrated baseline serum lipids for patients with non-esophageal squamous cell carcinoma. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:548. [PMID: 31807530 PMCID: PMC6861798 DOI: 10.21037/atm.2019.09.86] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 08/29/2019] [Indexed: 12/16/2022]
Abstract
BACKGROUND Serum lipids have been documented as prognostic biomarkers in several types of cancer, however the prognostic value of serum lipids in non-esophageal squamous cell carcinoma (non-ESCC) is not clear. The purpose of this study was to investigate the prognostic roles of serum lipids in non-ESCC and to establish a novel effective nomogram for overall survival (OS) and disease-free survival (DFS) in patients with non-ESCC. METHODS We retrospectively analyzed the prognostic values of pretreatment serum lipids, including total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), apolipoproteinA-I (ApoAI), and apolipoprotein B (ApoB) and three lipid derivatives: atherogenic index [AI: (TC-HDL-C)/HDL-C], THR (TG/HDL-C) and LHR (LDL-C/HDL-C) in non-ESCC patients. Prognostic factors predictive of OS and DFS were determined by univariate and cox hazards analysis, and prognostic nomograms were established. The predictive power of independent prognostic factors was compared adopting time-dependent ROC. Comparisons between the nomograms and traditional TNM staging systems were evaluated using the C-index and decision curve analysis. RESULTS A total of 180 non-ESCC patients were recruited in this prospective study between January 2006 and December 2016. Four (cancer type, TNM stage, TC, and TG) and five (cancer type, TNM stage, TC, TG, and LDL-C) independent prognostic factors were chosen to generate the nomogram for OS and DFS, respectively. Our results showed that the area under curves (AUCs) of cancer type and TG were higher than TNM stage for OS. For DFS, however, AUCs of cancer type, TG and LDL-C were higher than the TNM stage. The C-index of the nomogram for predicting the OS was 0.69, which was significantly higher than that of TNM stage (0.58, P=0.005). In addition, for DFS, the C-index of the nomogram was significantly higher than that of the TNM stage (0.70 vs. 0.60, P=0.001). Furthermore, decision curve analysis showed that the predictive accuracy of the prognostic nomogram for OS and DFS were both higher than the TNM stage. CONCLUSIONS Our study demonstrated that pretreatment of serum lipids based on the prognostic nomogram could be applied to predict the OS and DFS in non-ESCC patients.
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Affiliation(s)
- Shulin Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Xiaohui Li
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Xiaoyan Wen
- Department of Urology, The First Municipal Hospital of Guangzhou, Guangzhou 510180, China
| | - Songguo Peng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Ning Xue
- Department of Clinical Laboratory, Affiliated Tumor Hospital of Zhengzhou University, Henan Tumor Hospital, Zhengzhou 450100, China
| | - Shan Xing
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Yijun Liu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
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Yu D, Wang T, Huang J, Fang X, Fan H, Yi G, Liu Q, Zhang Y, Zeng X, Liu Q. MicroRNA‐9 overexpression suppresses vulnerable atherosclerotic plaque and enhances vascular remodeling through negative regulation of the p38MAPK pathway via OLR1 in acute coronary syndrome. J Cell Biochem 2019; 121:49-62. [DOI: 10.1002/jcb.27830] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 09/14/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Dao‐Rui Yu
- Department of Pharmacology School of Basic Medicine and Life Science, Hainan Medical University Haikou China
| | - Tao Wang
- Department of nursing humanities, International Nursing School, Hainan Medical University
| | - Jing Huang
- Department of Pharmacology School of Basic Medicine and Life Science, Hainan Medical University Haikou China
| | - Xing‐Yue Fang
- Department of Pharmacology School of Basic Medicine and Life Science, Hainan Medical University Haikou China
| | - Hao‐Fei Fan
- Department of Pharmacology School of Basic Medicine and Life Science, Hainan Medical University Haikou China
| | - Guo‐Hui Yi
- Instrument testing center, Public Research Laboratory, Hainan Medical University
| | - Qiang Liu
- Department of Pharmacology School of Basic Medicine and Life Science, Hainan Medical University Haikou China
| | - Yu Zhang
- Department of Pharmacology, School of Pharmacy, Nanjing Medical University
| | - Xiang‐Zhou Zeng
- Department of Pharmacology School of Basic Medicine and Life Science, Hainan Medical University Haikou China
| | - Qi‐Bing Liu
- Department of Pharmacology School of Basic Medicine and Life Science, Hainan Medical University Haikou China
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Murdocca M, Capuano R, Pucci S, Cicconi R, Polidoro C, Catini A, Martinelli E, Paolesse R, Orlandi A, Mango R, Novelli G, Di Natale C, Sangiuolo F. Targeting LOX-1 Inhibits Colorectal Cancer Metastasis in an Animal Model. Front Oncol 2019; 9:927. [PMID: 31608230 PMCID: PMC6761277 DOI: 10.3389/fonc.2019.00927] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 09/04/2019] [Indexed: 12/31/2022] Open
Abstract
Recurrence and metastasis are the primary causes of mortality in patients with colorectal cancer (CRC), and therefore effective tools to reduce morbidity and mortality of CRC patients are necessary. LOX-1, the ox-LDL receptor, is strongly involved in inflammation, obesity, and atherosclerosis, and several studies have assessed its role in the carcinogenesis process linking ROS, metabolic disorders and cancer. We have already demonstrated in vitro that LOX-1 expression correlates to the aggressiveness of human colon cancer and its downregulation weakens the tumoral phenotype, indicating its potential function as a biomarker and a target in CRC therapy. Here we further investigate in vivo the role of LOX-1 in colon tumorigenesis by xenografting procedures, injecting nude mice both subcutaneously and intravenously with human high grade metastatic colorectal cancer cells, DLD-1, in which LOX-1 expression has been downregulated by shRNA (LOX-1RNAi cells). Histopathological and immunohistochemical evaluations have been performed on xenograft tumors. The experiments have been complemented by the analysis of the volatile compounds (VOCs) collected from the cages of injected mice and analyzed by gas-chromatography and gas sensors. After intravenous injection of LOX-1RNAi cells, we found that LOX-1 silencing influences both the engraftment of the tumor and the metastasis development, acting by angiogenesis. For the first time, we have observed that LOX-1 inhibition significantly prevents metastasis formation in injected mice and, at the same time, induces a downregulation of VEGF-A165, HIF-1α, and β-catenin whose expression is involved in cell migration and metastasis, and a variation of histone H4 acetylation pattern suggesting also a role of LOX-1 in regulating gene transcription. The analysis of the volatile compounds (VOCs) collected from the cages of injected mice has evidenced a specific profile in those xenograft mice in which metastasis originates. These findings underline the role of LOX-1 as a potential target for inhibition of tumor progression and metastasis, enhancing current therapeutic strategies against colorectal cancer.
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Affiliation(s)
- Michela Murdocca
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - Rosamaria Capuano
- Department of Electronic Engineering, Tor Vergata University, Rome, Italy
| | - Sabina Pucci
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - Rosella Cicconi
- Centro Servizi Interdipartimentale STA, Tor Vergata University, Rome, Italy
| | - Chiara Polidoro
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - Alexandro Catini
- Department of Electronic Engineering, Tor Vergata University, Rome, Italy
| | - Eugenio Martinelli
- Department of Electronic Engineering, Tor Vergata University, Rome, Italy
| | - Roberto Paolesse
- Department of Chemical Science and Technology, Tor Vergata University, Rome, Italy
| | - Augusto Orlandi
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - Ruggiero Mango
- Cardiology Unit, Department of Emergency and Critical Care, Policlinic of Tor Vergata, Rome, Italy
| | - Giuseppe Novelli
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
| | - Corrado Di Natale
- Department of Electronic Engineering, Tor Vergata University, Rome, Italy
| | - Federica Sangiuolo
- Department of Biomedicine and Prevention, Tor Vergata University, Rome, Italy
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Long noncoding RNA GSTM3TV2 upregulates LAT2 and OLR1 by competitively sponging let-7 to promote gemcitabine resistance in pancreatic cancer. J Hematol Oncol 2019; 12:97. [PMID: 31514732 PMCID: PMC6739963 DOI: 10.1186/s13045-019-0777-7] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 08/16/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Chemoresistance is one of the main causes of poor prognosis in pancreatic cancer patients. Understanding the mechanisms implicated in chemoresistance of pancreatic cancer is critical to improving patient outcomes. Recent evidences indicate that the long noncoding RNAs (lncRNAs) are involving in chemoresistance of pancreatic cancer. However, the mechanisms of lncRNAs contribute to resistance in pancreatic cancer and remain largely unknown. The objective of this study is to construct a chemoresistance-related lncRNA-associated competing endogenous RNA (ceRNA) network of pancreatic cancer and identify the key lncRNAs in regulating chemoresistance of the network. METHODS Firstly, lncRNA expression profiling of gemcitabine-resistant pancreatic cancer cells was performed to identify lncRNAs related to chemoresistance by microarray analysis. Secondly, with insights into the mechanism of ceRNA, we used a bioinformatics approach to construct a chemoresistance-related lncRNAs-associated ceRNA network. We then identified the topological key lncRNAs in the ceRNA network and demonstrated its function or mechanism in chemoresistance of pancreatic cancer using molecular biological methods. Further studies evaluated its expression to assess its potential association with survival in patients with pancreatic cancer. RESULTS Firstly, we demonstrated that lncRNAs were dysregulated in gemcitabine-resistant pancreatic cancer cells. We then constructed a chemoresistance-related lncRNA-associated ceRNA network and proposed that lncRNA Homo sapiens glutathione S-transferase mu 3, transcript variant 2 and noncoding RNA (GSTM3TV2; NCBI Reference Sequence: NR_024537.1) might act as a key ceRNA to enhance chemoresistance by upregulating L-type amino acid transporter 2 (LAT2) and oxidized low-density lipoprotein receptor 1(OLR1) in pancreatic cancer. Further studies demonstrated that GSTM3TV2, overexpressed in gemcitabine-resistant cells, enhanced the gemcitabine resistance of pancreatic cancer cells in vitro and in vivo. Mechanistically, we identified that GSTM3TV2 upregulated LAT2 and OLR1 by competitively sponging let-7 to promote gemcitabine resistance. In addition, we revealed that the expression levels of GSTM3TV2 were significantly increased in pancreatic cancer tissues and were associated with poor prognosis. CONCLUSION Our results suggest that GSTM3TV2 is a crucial oncogenic regulator involved in chemoresistance and could be a new therapeutic target or prognostic marker in pancreatic cancer.
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Ding Z, Liu S, Wang X, Theus S, Deng X, Fan Y, Zhou S, Mehta JL. PCSK9 regulates expression of scavenger receptors and ox-LDL uptake in macrophages. Cardiovasc Res 2019; 114:1145-1153. [PMID: 29617722 DOI: 10.1093/cvr/cvy079] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 03/28/2018] [Indexed: 12/15/2022] Open
Abstract
Aims Proprotein convertase subtilisin/kexin type 9 (PCSK9) has been shown to influence macrophage biology and modulate atherogenesis. We conducted this study to examine the regulation of scavenger receptors (SRs) (LOX-1, SRA, and CD36) and oxidized liporoptein cholesterol (ox-LDL) uptake in macrophages by PCSK9. Methods and results Treatment of mouse peritoneal macrophages with tumour necrosis factor alpha (TNF-α) resulted in concentration-dependent modest, but significant, increase in PCSK9 expression. Importantly, treatment of TNF-α primed macrophages with recombinant murine PCSK9 increased the expression of LOX-1, SRA, and CD36 2-5 fold, and enhanced ox-LDL uptake by ≈five-fold. The increase in LOX-1 was much greater than in SRA or CD36. PCSK9 inhibition (by siRNA transfection or use of macrophages from PCSK9-/- mice) reduced the expression of SRs (LOX-1 ≫ SRA or CD36). Ox-LDL uptake in response to PCSK9 was also inhibited in macrophages from LOX-1-/- mice (P < 0.05 vs. macrophages from SRA-/- and CD36-/- mice). Upregulation of PCSK9 by cDNA transfection induced intense ox-LDL uptake which was inhibited by co-transfection of cells with siRNA LOX-1 (P < 0.05 vs. siRNA SRA or siRNA CD36). Further, TNF-α-mediated PCSK9 upregulation and subsequent expression of SRs and ox-LDL uptake were reduced in macrophages from gp91phox-/-, p47phox-/- and p22phox-/- mice (vs. macrophages from wild-type mice). Conclusions This study shows that in an inflammatory milieu, elevated levels of PCSK9 potently stimulate the expression of SRs (principally LOX-1) and ox-LDL uptake in macrophages, and thus contribute to the process of atherogenesis.
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Affiliation(s)
- Zufeng Ding
- Central Arkansas Veterans Healthcare System and Division of Cardiology of the University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA.,Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, Xinxiang 453003, China.,Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering; Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China
| | - Shijie Liu
- Central Arkansas Veterans Healthcare System and Division of Cardiology of the University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Xianwei Wang
- Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, Xinxiang 453003, China
| | - Sue Theus
- Central Arkansas Veterans Healthcare System and Division of Cardiology of the University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Xiaoyan Deng
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering; Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering; Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China
| | - Sichang Zhou
- Department of Neurological Surgery, Weill Cornell Medicine, New York 10065, NY, USA
| | - Jawahar L Mehta
- Central Arkansas Veterans Healthcare System and Division of Cardiology of the University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
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Cedó L, Reddy ST, Mato E, Blanco-Vaca F, Escolà-Gil JC. HDL and LDL: Potential New Players in Breast Cancer Development. J Clin Med 2019; 8:jcm8060853. [PMID: 31208017 PMCID: PMC6616617 DOI: 10.3390/jcm8060853] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 06/11/2019] [Accepted: 06/12/2019] [Indexed: 02/07/2023] Open
Abstract
Breast cancer is the most prevalent cancer and primary cause of cancer-related mortality in women. The identification of risk factors can improve prevention of cancer, and obesity and hypercholesterolemia represent potentially modifiable breast cancer risk factors. In the present work, we review the progress to date in research on the potential role of the main cholesterol transporters, low-density and high-density lipoproteins (LDL and HDL), on breast cancer development. Although some studies have failed to find associations between lipoproteins and breast cancer, some large clinical studies have demonstrated a direct association between LDL cholesterol levels and breast cancer risk and an inverse association between HDL cholesterol and breast cancer risk. Research in breast cancer cells and experimental mouse models of breast cancer have demonstrated an important role for cholesterol and its transporters in breast cancer development. Instead of cholesterol, the cholesterol metabolite 27-hydroxycholesterol induces the proliferation of estrogen receptor-positive breast cancer cells and facilitates metastasis. Oxidative modification of the lipoproteins and HDL glycation activate different inflammation-related pathways, thereby enhancing cell proliferation and migration and inhibiting apoptosis. Cholesterol-lowering drugs and apolipoprotein A-I mimetics have emerged as potential therapeutic agents to prevent the deleterious effects of high cholesterol in breast cancer.
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Affiliation(s)
- Lídia Cedó
- Institut d'Investigacions Biomèdiques (IIB) Sant Pau, Sant Quintí 77, 08041 Barcelona, Spain.
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Monforte de Lemos 3-5, 28029 Madrid, Spain.
| | - Srinivasa T Reddy
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, CA, 90095-1736, USA.
| | - Eugènia Mato
- Institut d'Investigacions Biomèdiques (IIB) Sant Pau, Sant Quintí 77, 08041 Barcelona, Spain.
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Monforte de Lemos 3-5, 28029 Madrid, Spain.
| | - Francisco Blanco-Vaca
- Institut d'Investigacions Biomèdiques (IIB) Sant Pau, Sant Quintí 77, 08041 Barcelona, Spain.
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Monforte de Lemos 3-5, 28029 Madrid, Spain.
- Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, Av. de Can Domènech 737, 08193 Cerdanyola del Vallès, Spain.
| | - Joan Carles Escolà-Gil
- Institut d'Investigacions Biomèdiques (IIB) Sant Pau, Sant Quintí 77, 08041 Barcelona, Spain.
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Monforte de Lemos 3-5, 28029 Madrid, Spain.
- Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, Av. de Can Domènech 737, 08193 Cerdanyola del Vallès, Spain.
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Plasterer C, Tsaih SW, Peck AR, Chervoneva I, O’Meara C, Sun Y, Lemke A, Murphy D, Smith J, Ran S, Kovatich AJ, Hooke JA, Shriver CD, Hu H, Mitchell EP, Bergom C, Joshi A, Auer P, Prokop J, Rui H, Flister MJ. Neuronatin is a modifier of estrogen receptor-positive breast cancer incidence and outcome. Breast Cancer Res Treat 2019; 177:77-91. [DOI: 10.1007/s10549-019-05307-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 05/29/2019] [Indexed: 01/13/2023]
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Revilla G, Corcoy R, Moral A, Escolà-Gil JC, Mato E. Cross-Talk between Inflammatory Mediators and the Epithelial Mesenchymal Transition Process in the Development of Thyroid Carcinoma. Int J Mol Sci 2019; 20:ijms20102466. [PMID: 31109060 PMCID: PMC6566886 DOI: 10.3390/ijms20102466] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 05/09/2019] [Accepted: 05/16/2019] [Indexed: 12/14/2022] Open
Abstract
There is strong association between inflammatory processes and their main metabolic mediators, such as leptin, adiponectin secretion, and low/high-density lipoproteins, with the cancer risk and aggressive behavior of solid tumors. In this scenario, cancer cells (CCs) and cancer stem cells (CSCs) have important roles. These cellular populations, which come from differentiated cells and progenitor stem cells, have increased metabolic requirements when it comes to maintaining or expanding the tumors, and they serve as links to some inflammatory mediators. Although the molecular mechanisms that are involved in these associations remain unclear, the two following cellular pathways have been suggested: 1) the mesenchymal-epithelial transition (MET) process, which permits the differentiation of adult stem cells throughout the acquisition of cell polarity and the adhesion to epithelia, as well to new cellular lineages (CSCs); and, 2) a reverse process, termed the epithelial-mesenchymal transition (EMT), where, in pathophysiological conditions (tissue injury, inflammatory process, and oxidative stress), the differentiated cells can acquire a multipotent stem cell-like phenotype. The molecular mechanisms that regulate both EMT and MET are complex and poorly understood. Especially, in the thyroid gland, little is known regarding MET/EMT and the role of CCs or CSCs, providing an exciting, new area of knowledge to be investigated. This article reviews the progress to date in research on the role of inflammatory mediators and metabolic reprogramming during the carcinogenesis process of the thyroid gland and the EMT pathways.
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Affiliation(s)
- Giovanna Revilla
- Institut d'Investigacions Biomèdiques (IIB) Sant Pau, Hospital de la Santa Creu i Sant Pau (HSCSP), 08041 Barcelona, Spain.
- Departament de Bioquímica, Biologia Molecular i Biomedicina, Universitat Autònoma de Barcelona (UAB), 08193 Barcelona, Spain.
| | - Rosa Corcoy
- Department of Endocrinology, Hospital de la Santa Creu i Sant Pau (HSCSP), 08025 Barcelona, Spain.
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain.
- Departament de Medicina, Universitat Autònoma de Barcelona (UAB), 08193 Barcelona, Spain.
| | - Antonio Moral
- Department of General Surgery-Hospital de la Santa Creu i Sant Pau (HSCSP), 08025 Barcelona, Spain.
- Departament de Cirugia, Universitat Autònoma de Barcelona (UAB), 08193 Barcelona, Spain.
| | - Joan Carles Escolà-Gil
- Institut d'Investigacions Biomèdiques (IIB) Sant Pau, Hospital de la Santa Creu i Sant Pau (HSCSP), 08041 Barcelona, Spain.
- Departament de Bioquímica, Biologia Molecular i Biomedicina, Universitat Autònoma de Barcelona (UAB), 08193 Barcelona, Spain.
- Centro de Investigación Biomédica en Red en Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 28029 Madrid, Spain.
| | - Eugenia Mato
- Department of Endocrinology, Hospital de la Santa Creu i Sant Pau (HSCSP), 08025 Barcelona, Spain.
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain.
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Stevanovic M, Vekic J, Bogavac-Stanojevic N, Janac J, Stjepanovic Z, Zeljkovic D, Trifunovic B, Spasojevic-Kalimanovska V, Zeljkovic A. Significance of LDL and HDL subclasses characterization in the assessment of risk for colorectal cancer development. Biochem Med (Zagreb) 2019; 28:030703. [PMID: 30429670 PMCID: PMC6214700 DOI: 10.11613/bm.2018.030713] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 09/04/2018] [Indexed: 12/31/2022] Open
Abstract
Introduction Dyslipidaemia contributes to the occurrence of colorectal cancer (CRC). We hypothesized that qualitative changes of lipoproteins are associated with the risk for CRC development. This study analyses low-density lipoprotein (LDL) and high-density lipoprotein (HDL) diameters, as well as distribution of LDL and HDL subclasses in patients with CRC, with an aim to determine whether advanced lipid testing might be useful in predicting the risk for the onset of this malignancy. Materials and methods This case-control study included 84 patients with newly diagnosed CRC and 92 controls. Gradient gel electrophoresis was applied for separation of lipoprotein subclasses and for LDL and HDL diameters determination. Lipid parameters were measured using routine enzymatic methods. Results Total cholesterol, HDL and LDL-cholesterol were significantly lower in CRC patients compared to controls (4.47 mmol/L vs. 5.63 mmol/L; 0.99 mmol/L vs. 1.27 mmol/L; 2.90 mmol/L vs. 3.66 mmol/L; P < 0.001, respectively). Patients had significantly smaller LDL (25.14 nm vs. 26.92 nm; P < 0.001) and HDL diameters (8.76 nm vs. 10.17 nm; P < 0.001) and greater proportion of small, dense LDL particles (54.0% vs. 52.9%; P = 0.044) than controls. Decreased LDL and HDL diameters were independent predictors of CRC (OR = 0.5, P = 0.001 and OR = 0.5, P = 0.008, respectively), and alongside with age and HDL-cholesterol concentrations formed the optimal cost-effective model, providing adequate discriminative abilities for CRC (AUC = 0.89) and correct patients classification (81%). Conclusions Patients with CRC have decreased LDL and HDL diameters and increased proportion of smaller particles. LDL and HDL diameters determination could be useful in assessing the risk for CRC development.
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Affiliation(s)
- Milica Stevanovic
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Jelena Vekic
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | | | - Jelena Janac
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | | | - Dejan Zeljkovic
- Clinic of General Surgery, Military Medical Academy, Belgrade, Serbia
| | - Bratislav Trifunovic
- Clinic of General Surgery, Military Medical Academy, Belgrade, Serbia.,Faculty of Medicine of the Military Medical Academy, University of Defence, Belgrade, Serbia
| | | | - Aleksandra Zeljkovic
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
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Zhang L, Fang WJ, Zhang KM, Jiang WW, Chen M, Liao WQ, Pan WH. Long noncoding RNA expression profile from cryptococcal meningitis patients identifies DPY19L1p1 as a new disease marker. CNS Neurosci Ther 2019; 25:772-782. [PMID: 30767376 PMCID: PMC6515894 DOI: 10.1111/cns.13109] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 01/09/2019] [Accepted: 01/11/2019] [Indexed: 12/14/2022] Open
Abstract
AIMS LncRNAs play a vital role in the pathological and physiological process. This study aimed to explore the involvement of lncRNAs in cryptococcal meningitis. METHODS Microarray was performed in cryptococcal meningitis patients, and then, GO and KEGG pathways were analyzed. Coexpression relationship between lncRNA and mRNA was explored. The expressions of the lncRNAs and mRNAs, and their changes after treatment were detected by PCR. RESULTS A total of 325 mRNAs (201 upregulated and 124 downregulated) and 497 lncRNAs (263 upregulated and 234 downregulated) were identified. The top three enriched GO terms for the mRNAs were arachidonic acid binding, activin receptor binding, and replication fork protection complex. The top three pathways in KEGG were asthma, one carbon pool by folate, and allograft rejection. A total of 305 coexpression relationships were found between 108 lncRNAs and 87 mRNAs. LncRNA-DPY19L1p1 was significantly increased in patients and decreased after treatment. ROC analysis revealed DPY19L1p1 was a potential diagnostic marker (AUCROC = 0.9389). Furthermore, the target genes of DPY19L1p1 in cis or trans regulation were mainly involved in immune-related pathways like the interleukin signaling pathway. CONCLUSIONS This study analyzed the differential lncRNA profile in cryptococcal meningitis patients and revealed DPY19L1p1 could be used for treatment evaluation and disease diagnosis.
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Affiliation(s)
- Lei Zhang
- Department of Dermatology and Venereology, Changzheng Hospital, Second Military Medical University, Shanghai, China.,Shanghai Key Laboratory of Molecular Medical Mycology, Shanghai Institute of Medical Mycology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Wen-Jie Fang
- Department of Dermatology and Venereology, Changzheng Hospital, Second Military Medical University, Shanghai, China.,Shanghai Key Laboratory of Molecular Medical Mycology, Shanghai Institute of Medical Mycology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Ke-Ming Zhang
- Department of Dermatology and Venereology, Changzheng Hospital, Second Military Medical University, Shanghai, China.,Shanghai Key Laboratory of Molecular Medical Mycology, Shanghai Institute of Medical Mycology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Wei-Wei Jiang
- Department of Dermatology and Venereology, Changzheng Hospital, Second Military Medical University, Shanghai, China.,Shanghai Key Laboratory of Molecular Medical Mycology, Shanghai Institute of Medical Mycology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Min Chen
- Department of Dermatology and Venereology, Changzheng Hospital, Second Military Medical University, Shanghai, China.,Shanghai Key Laboratory of Molecular Medical Mycology, Shanghai Institute of Medical Mycology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Wan-Qing Liao
- Department of Dermatology and Venereology, Changzheng Hospital, Second Military Medical University, Shanghai, China.,Shanghai Key Laboratory of Molecular Medical Mycology, Shanghai Institute of Medical Mycology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Wei-Hua Pan
- Department of Dermatology and Venereology, Changzheng Hospital, Second Military Medical University, Shanghai, China.,Shanghai Key Laboratory of Molecular Medical Mycology, Shanghai Institute of Medical Mycology, Changzheng Hospital, Second Military Medical University, Shanghai, China
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Plasma and erythrocyte ω-3 and ω-6 fatty acids are associated with multiple inflammatory and oxidative stress biomarkers in breast cancer. Nutrition 2019; 58:194-200. [DOI: 10.1016/j.nut.2018.07.115] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 06/23/2018] [Accepted: 07/17/2018] [Indexed: 12/18/2022]
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Pucci S, Polidoro C, Greggi C, Amati F, Morini E, Murdocca M, Biancolella M, Orlandi A, Sangiuolo F, Novelli G. Pro-oncogenic action of LOX-1 and its splice variant LOX-1Δ4 in breast cancer phenotypes. Cell Death Dis 2019; 10:53. [PMID: 30718451 PMCID: PMC6362207 DOI: 10.1038/s41419-018-1279-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 11/19/2018] [Accepted: 11/21/2018] [Indexed: 12/15/2022]
Abstract
The identification of new predictive biomarkers and therapeutic target for tailored therapy in breast cancer onset and progression is an interesting challenge. OLR-1 gene encodes the cell membrane receptor LOX-1 (lectin-like oxidized low-density lipoprotein receptor). We have recently identified a novel alternative OLR-1 isoform, LOX-1Δ4, whose expression and functions are still not clarified. In the present paper, we demonstrated that LOX-1 is overexpressed in 70% of human breast cancer (n = 47) and positively correlated to the tumor stage and grade (p < 0.01). Observations on LOX-1 and its splice variant Δ4 pointed out a different expression pattern correlated to breast cancer phenotypes. Overexpressing LOX-1 and LOX-1Δ4 in vitro, we obtained a strong enhancement of proliferative rate and a downregulation of cell death-related proteins. In addition, we observed a strong modulation of histone H4 acetylation and Ku70, the limiting factor of DNA double-strand breaks repair machinery implied in apoptosis inhibition and drug resistance acquisition. Moreover, LOX-1Δ4 overexpression is able to increase proliferation in a non-tumorigenic epithelial cell line, MCF12-F, acting as an oncogene. Altogether, these results suggest that LOX-1 may acts as a molecular link among metabolism, inflammation and cancer, indicating its potential role as biomarker and new molecular target, representing an attractive and concrete opportunity to improve current strategies for breast cancer tailored therapy.
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Affiliation(s)
- Sabina Pucci
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Via Montpellier 1, 00133, Rome, Italy.
| | - Chiara Polidoro
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Via Montpellier 1, 00133, Rome, Italy
| | - Chiara Greggi
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Via Montpellier 1, 00133, Rome, Italy
| | - Francesca Amati
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Via Montpellier 1, 00133, Rome, Italy
| | - Elena Morini
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Via Montpellier 1, 00133, Rome, Italy
| | - Michela Murdocca
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Via Montpellier 1, 00133, Rome, Italy
| | - Michela Biancolella
- Department of Biology, University of Rome "Tor Vergata", Via della Ricerca Scientifica 1, 00133, Rome, Italy
| | - Augusto Orlandi
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Via Montpellier 1, 00133, Rome, Italy
| | - Federica Sangiuolo
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Via Montpellier 1, 00133, Rome, Italy
| | - Giuseppe Novelli
- Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Via Montpellier 1, 00133, Rome, Italy.,Neuromed, I.R.C.C.S, Pozzilli, Italy
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Liu J, Guo Y, Huang Y, Xue H, Bai S, Zhu J, Xia X, Shen B, Fang W. Effects of insulin-like growth factor binding protein 3 on apoptosis of cutaneous squamous cell carcinoma cells. Onco Targets Ther 2018; 11:6569-6577. [PMID: 30323629 PMCID: PMC6178943 DOI: 10.2147/ott.s167187] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Background Cutaneous squamous cell carcinoma (CSCC) is the second most common carcinoma worldwide. Clinical treatment for patients with CSCC remains non-ideal. Insulin-like growth factor binding protein 3 (IGFBP3), a member of the insulin-like growth (IGF) system, participates in several biological processes, including cellular proliferation and apoptosis. Here, we explored the functional role of IGFBP3 in apoptosis and proliferation of A431 cells, a human CSCC cell line. Materials and methods Differential expression analysis, immunohistochemistry, immunoblotting, TUNEL assay, and CCK8 assay techniques were used to investigate the IGFBP3 expression levels in both A431 cells and CSCC tissue surgically obtained from humans as well as to explore the functional role of IGFBP3 in the apoptosis and proliferation of A431 cells. Results By using normal epidermal keratinocytes for comparison, we identified the top 10 ranked differentially upregulated genes expressed in human cutaneous squamous cell carcinoma cell lines. Among these 10 genes, IGFBP3 was ranked number 1. By using immunohistochemistry, we found that the expression level of IGFBP3 was significantly elevated in CSCC tissue compared with that in normal human skin tissue. Knockdown of IGFBP3 in A431 cells by transfection with IGFBP3-specific siRNA markedly altered the expression of proteins that contribute to apoptosis via mitochondrial pathways, significantly suppressing the expression of Bax and active caspase-3, while significantly increasing B-cell lymphoma-2 expression. TUNEL assay confirmed the effect of knockdown of IGFBP3 on the apoptosis as well. In addition, knockdown of IGFBP3 inhibited the proliferation of A431 cells. Conclusion IGFBP3 is overexpressed in both CSCC cell lines and tissue. Knockdown of IGFBP3 enhanced the apoptosis via a mitochondrial pathway and inhibited the proliferation of A431 cells. These findings indicate that IGFBP3 may be a biomarker and a potential therapeutic target for CSCC.
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Affiliation(s)
- Jinli Liu
- Department of Dermatology, Anhui Provincial Hospital, Hefei 230001, Anhui, China
| | - Yuanyuan Guo
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, China
| | - Yuanyuna Huang
- Department of Gastroenterology and Hepatology, The Fourth Affiliated Hospital of Anhui Medical University, Hefei 230032, Anhui, China
| | - Haowei Xue
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, Anhui, China
| | - Suwen Bai
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, China
| | - Jinhang Zhu
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, China
| | - Xianming Xia
- Department of Gastroenterology and Hepatology, The Fourth Affiliated Hospital of Anhui Medical University, Hefei 230032, Anhui, China
| | - Bing Shen
- School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui 230032, China
| | - Wei Fang
- Department of ICU, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266071, China,
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Colorectal cancer patients with different C-reactive protein levels and 5-year survival times can be differentiated with quantitative serum proteomics. PLoS One 2018; 13:e0195354. [PMID: 29630649 PMCID: PMC5891022 DOI: 10.1371/journal.pone.0195354] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 03/21/2018] [Indexed: 02/06/2023] Open
Abstract
Over 1.4 million people are diagnosed with colorectal cancer (CRC) each year, making it the third most common cancer in the world. Increased screening and therapeutic modalities including improved combination treatments have reduced CRC mortality, although incidence and mortality rates are still increasing in some areas. Serum-based biomarkers are mainly used for follow-up of cancer, and are ideal due to the ease and minimally invasive nature of sample collection. Unfortunately, CEA and other serum markers have too low sensitivity for screening and preoperative diagnostic purposes. Increasing interest is focused on the possible use of biomarkers for predicting treatment response and prognosis in cancer. In this study, we have performed mass spectrometry analysis (UPLC-UDMSE) of serum samples from 19 CRC patients. Increased levels of C-reactive protein (CRP), which occur during local inflammation and the presence of a systemic inflammatory response, have been linked to poor prognosis in CRC patients. We chose to analyze samples according to CRP values by dividing them into the categories CRP <30 and >30, and, separately, according to short and long 5-year survival. The aim was to discover differentially expressed proteins associated with poor prognosis and shorter survival. We quantified 256 proteins and performed detailed statistical analyses and pathway analysis. We discovered multiple proteins that are up- or downregulated in patients with CRP >30 as compared to CRP <30 and in patients with short as compared to long 5-year survival. Pathways that were enriched include LXR/RXR activation, FXR/RXR activation, complement and coagulation cascades and acute phase signaling response, with some of the proteins we identified having roles in these pathways. In this study, we have identified multiple proteins, of which a few have been previously identified as potential biomarkers, and others that have been identified as potential biomarkers for CRC for the first time, to the best of our knowledge. While these proteins still need to be validated in larger patient series, this pilot study will pave the way for future studies aiming to provide better biomarkers for patients with CRC.
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