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Ashar H, Singh A, Kishore D, Neel T, More S, Liu C, Dugat D, Ranjan A. Enabling Chemo-Immunotherapy with HIFU in Canine Cancer Patients. Ann Biomed Eng 2024; 52:1859-1872. [PMID: 37162696 DOI: 10.1007/s10439-023-03194-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 03/23/2023] [Indexed: 05/11/2023]
Abstract
High intensity focused ultrasound (HIFU) is a promising non-invasive technique for treating solid tumors using thermal and histotripsy-based mechanical ablation. However, its clinical significance in different tumor types is not fully understood. To assess its therapeutic efficacy and immunomodulatory properties, we compared HIFU thermal ablation and histotripsy ablation in dogs with spontaneous tumors. We also evaluated the ability of non-ablative HIFU-based mild hyperthermia (40-45 ºC) to improve Doxorubicin delivery and immunomodulation. Our results showed that HIFU thermal ablation induced tumor remission in the majority of treated patients over 60 days, while histotripsy achieved partial response to stable disease persistence. The adverse effects of thermal ablation were minor to moderate, while histotripsy exposures were relatively well-tolerated. Furthermore, we observed a correlation between HIFU-therapeutic response and serum anti-tumor cytokine profiles and the presence of functionally active cytotoxic immune cells in patients. Similarly, Doxorubicin-treated patients showed improved drug delivery, efficacy, and anti-tumor immune responses with HIFU hyperthermia. In conclusion, our study demonstrates that depending on the tumor type and treatment parameters, HIFU treatments can enable tumor growth control, immune activation, and chemotherapy in veterinary patient. These findings have significant clinical implications and highlight the potential of HIFU as a promising cancer treatment approach.
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Affiliation(s)
- Harshini Ashar
- Department of Physiological Sciences, College of Veterinary Medicine, Oklahoma State University, 169 McElroy Hall, Stillwater, OK, 74078, USA
| | - Akansha Singh
- Department of Physiological Sciences, College of Veterinary Medicine, Oklahoma State University, 169 McElroy Hall, Stillwater, OK, 74078, USA
| | | | - Tina Neel
- Neel Veterinary Hospital, Oklahoma City, OK, 73127, USA
| | - Sunil More
- Department of Veterinary Pathobiology, Oklahoma State University, Stillwater, OK, 74078, USA
| | - Chenang Liu
- The School of Industrial Engineering & Management, Oklahoma State University, Stillwater, OK, 74078, USA
| | - Danielle Dugat
- Department of Physiological Sciences, College of Veterinary Medicine, Oklahoma State University, 169 McElroy Hall, Stillwater, OK, 74078, USA
| | - Ashish Ranjan
- Department of Physiological Sciences, College of Veterinary Medicine, Oklahoma State University, 169 McElroy Hall, Stillwater, OK, 74078, USA.
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Herrera-Martínez AD, Navas Romo A, León-Idougourram S, Muñoz-Jiménez C, Rodríguez-Alonso R, Manzano García G, Camacho-Cardenosa M, Casado-Diaz A, Gálvez-Moreno MÁ, Molina Puertas MJ, Jurado Roger A. Systemic Inflammation in Oncologic Patients Undergoing Systemic Treatment and Receiving Whey Protein-Based Nutritional Support. Int J Mol Sci 2024; 25:5821. [PMID: 38892006 PMCID: PMC11171732 DOI: 10.3390/ijms25115821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/19/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
There is increasing evidence about the role of inflammation in sarcopenia and tumor progression; thus, its modulation would represent a valuable strategy for improving clinical outcomes in patients with cancer. Several studies have reported that whey protein has significant anti-inflammatory and antioxidant characteristics in humans. We aimed to evaluate the effects of whey protein-based oral nutritional support on circulating cytokines in patients with solid tumors undergoing systemic treatment. Forty-six patients with solid tumors of different origin and undergoing systemic treatment were evaluated. Nutritional support with two daily whey protein-based oral supplements was administered. Circulating levels of IL-6, IL-8, IL-10, MCP-1 and IP-10 were determined. Nutritional evaluation included anthropometric, instrumental and biochemical parameters. Over 63% of the evaluated patients underwent surgery, 56.5% required chemotherapy and almost 50% received combined treatment. Patients with resected primary tumor presented with lower baseline IL-6 (p < 0.05) and IP-10 (p < 0.001); after three months of nutritional support, they presented with lower IL-8 (p < 0.05) and tended to present lower IL-6 and IP-10 (p = 0.053 and 0.067, respectively). Significant positive correlations between circulating cytokines, C-reactive protein and ferritin were observed; similarly, negative correlations with anthropometric and biochemical nutritional parameters were noticed (p < 0.05). We did not observe significant changes in circulating cytokine levels (IL-6, IL-8, IL-10, MCP-1 and IP-10) in patients with cancer undergoing systemic treatment after three months of nutritional support with whey protein-based oral supplements. According to a univariate analysis in our cohort, circulating IL-8 was associated with mortality in these patients, additionally, MCP-1 and IP-10 tended to correlate; but an age- and sex-adjusted multivariate analysis revealed that only baseline MCP-1 was significantly associated with mortality (OR 1.03 (95% CI: 1.00-1.05)). In conclusion, surgery of the primary solid tumor and combination treatment allow significant reduction in circulating cytokine levels, which remained stable while patients received nutritional support with whey protein-based oral supplements over three months. The role of MCP-1 as an independent factor for mortality in these patients should be further evaluated.
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Affiliation(s)
- Aura D. Herrera-Martínez
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), 14004 Córdoba, Spain (S.L.-I.); (C.M.-J.); (M.C.-C.); (M.J.M.P.)
- Endocrinology and Nutrition Service, Reina Sofia University Hospital, 14004 Córdoba, Spain
| | - Ana Navas Romo
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), 14004 Córdoba, Spain (S.L.-I.); (C.M.-J.); (M.C.-C.); (M.J.M.P.)
- Clinical Immunology Service, Reina Sofia University Hospital, 14004 Córdoba, Spain
| | - Soraya León-Idougourram
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), 14004 Córdoba, Spain (S.L.-I.); (C.M.-J.); (M.C.-C.); (M.J.M.P.)
- Endocrinology and Nutrition Service, Reina Sofia University Hospital, 14004 Córdoba, Spain
| | - Concepción Muñoz-Jiménez
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), 14004 Córdoba, Spain (S.L.-I.); (C.M.-J.); (M.C.-C.); (M.J.M.P.)
- Endocrinology and Nutrition Service, Reina Sofia University Hospital, 14004 Córdoba, Spain
| | - Rosa Rodríguez-Alonso
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), 14004 Córdoba, Spain (S.L.-I.); (C.M.-J.); (M.C.-C.); (M.J.M.P.)
- Medical Oncology Service, Reina Sofia University Hospital, 14004 Córdoba, Spain
| | - Gregorio Manzano García
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), 14004 Córdoba, Spain (S.L.-I.); (C.M.-J.); (M.C.-C.); (M.J.M.P.)
- Endocrinology and Nutrition Service, Reina Sofia University Hospital, 14004 Córdoba, Spain
| | - Marta Camacho-Cardenosa
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), 14004 Córdoba, Spain (S.L.-I.); (C.M.-J.); (M.C.-C.); (M.J.M.P.)
| | - Antonio Casado-Diaz
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), 14004 Córdoba, Spain (S.L.-I.); (C.M.-J.); (M.C.-C.); (M.J.M.P.)
- CIBER Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, 08003 Madrid, Spain
| | - María Ángeles Gálvez-Moreno
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), 14004 Córdoba, Spain (S.L.-I.); (C.M.-J.); (M.C.-C.); (M.J.M.P.)
- Endocrinology and Nutrition Service, Reina Sofia University Hospital, 14004 Córdoba, Spain
| | - María José Molina Puertas
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), 14004 Córdoba, Spain (S.L.-I.); (C.M.-J.); (M.C.-C.); (M.J.M.P.)
- Endocrinology and Nutrition Service, Reina Sofia University Hospital, 14004 Córdoba, Spain
| | - Aurora Jurado Roger
- Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), 14004 Córdoba, Spain (S.L.-I.); (C.M.-J.); (M.C.-C.); (M.J.M.P.)
- Clinical Immunology Service, Reina Sofia University Hospital, 14004 Córdoba, Spain
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3
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Leng Q, Dhilipkannah P, Jiang F. Cytokine Signatures for Lung Cancer Diagnosis in African American Populations. J Pers Med 2024; 14:117. [PMID: 38276239 PMCID: PMC10817620 DOI: 10.3390/jpm14010117] [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: 10/31/2023] [Revised: 01/05/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024] Open
Abstract
Lung cancer is the leading cause of cancer-related deaths among both men and women. African Americans (AAs) experience disproportionately higher incidence and mortality compared to other ethnic groups. Cytokines play multifaceted and crucial roles in the initiation, progression, and spread of cancer. Our aim was to identify cytokine biomarkers for the early detection of lung cancer in AAs. We examined eight key cytokines (Interleukin-1, IL-6, IL-8, IL-10, IL-12p70, monocyte chemotactic protein-1 (MCP-1), interferon-gamma (IFN-γ), and tumor necrosis factor-alpha (TNF-α)) in the plasma of 104 lung cancer patients and 48 cancer-free individuals using the FirePlex Immunoassay. These findings were subsequently validated in a separate cohort of 58 cases and 58 controls. IL-8, IFN-γ, and TNF-α exhibited elevated levels in both AA and White American (WA) lung cancer cases. Notably, IL-10 and MCP-1 displayed significant increases specifically in AA lung cancer patients, with MCP-1 levels associated with lung adenocarcinoma cases. Conversely, WA lung cancer patients showed heightened IL-6 levels, particularly linked to lung adenocarcinoma. The combined use of specific cytokines showed promise in lung cancer diagnosis, with IL-8, IL-10, and MCP-1 achieving 76% sensitivity and 79% specificity in AAs and IL-6 and IL-8 combined offering 76% sensitivity and 74% specificity in WAs. These diagnostic biomarkers were validated in the independent cohort. The ethnicity-related cytokine biomarkers hold promise for diagnosing lung cancer in AAs and WAs, potentially addressing the observed racial disparity.
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Affiliation(s)
| | | | - Feng Jiang
- Departments of Pathology, University of Maryland School of Medicine, Baltimore, MD 21201, USA
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4
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Liu Y, Xu K, Xiang Y, Ma B, Li H, Li Y, Shi Y, Li S, Bai Y. Role of MCP-1 as an inflammatory biomarker in nephropathy. Front Immunol 2024; 14:1303076. [PMID: 38239353 PMCID: PMC10794684 DOI: 10.3389/fimmu.2023.1303076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 12/12/2023] [Indexed: 01/22/2024] Open
Abstract
The Monocyte chemoattractant protein-1 (MCP-1), also referred to as chemokine ligand 2 (CCL2), belongs to the extensive chemokine family and serves as a crucial mediator of innate immunity and tissue inflammation. It has a notable impact on inflammatory conditions affecting the kidneys. Upon binding to its receptor, MCP-1 can induce lymphocytes and NK cells' homing, migration, activation, differentiation, and development while promoting monocytes' and macrophages' infiltration, thereby facilitating kidney disease-related inflammation. As a biomarker for kidney disease, MCP-1 has made notable advancements in primary kidney diseases such as crescentic glomerulonephritis, chronic glomerulonephritis, primary glomerulopathy, idiopathic proteinuria glomerulopathy, acute kidney injury; secondary kidney diseases like diabetic nephropathy and lupus nephritis; hereditary kidney diseases including autosomal dominant polycystic kidney disease and sickle cell kidney disease. MCP-1 not only predicts the occurrence, progression, prognosis of the disease but is also closely associated with the severity and stage of nephropathy. When renal tissue is stimulated or experiences significant damage, the expression of MCP-1 increases, demonstrating a direct correlation with the severity of renal injury.
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Affiliation(s)
- Yanlong Liu
- Heilongjiang Provincial Health Commission, Harbin, China
| | - Ke Xu
- Heilongjiang University of Chinese Medicine, The Second Clinical Medical College, Harbin, China
| | - Yuhua Xiang
- Heilongjiang Academy of Traditional Chinese Medicine, Harbin, China
| | - Boyan Ma
- Heilongjiang University of Chinese Medicine, The Second Clinical Medical College, Harbin, China
| | - Hailong Li
- Heilongjiang Academy of Traditional Chinese Medicine, Harbin, China
| | - Yuan Li
- The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yue Shi
- Heilongjiang University of Chinese Medicine, The Second Clinical Medical College, Harbin, China
| | - Shuju Li
- Heilongjiang Academy of Traditional Chinese Medicine, Harbin, China
| | - Yan Bai
- Heilongjiang Academy of Traditional Chinese Medicine, Harbin, China
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5
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Ferreira LB, Williams KA, Best G, Haydinger CD, Smith JR. Inflammatory cytokines as mediators of retinal endothelial barrier dysfunction in non-infectious uveitis. Clin Transl Immunology 2023; 12:e1479. [PMID: 38090668 PMCID: PMC10714664 DOI: 10.1002/cti2.1479] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 09/22/2023] [Accepted: 11/21/2023] [Indexed: 06/30/2024] Open
Abstract
Characterised by intraocular inflammation, non-infectious uveitis includes a large group of autoimmune and autoinflammatory diseases that either involve the eye alone or have both ocular and systemic manifestations. When non-infectious uveitis involves the posterior segment of the eye, specifically the retina, there is substantial risk of vision loss, often linked to breakdown of the inner blood-retinal barrier. This barrier is formed by non-fenestrated retinal vascular endothelial cells, reinforced by supporting cells that include pericytes, Müller cells and astrocytes. Across the published literature, a group of inflammatory cytokines stand out as prominent mediators of intraocular inflammation, with effects on the retinal endothelium that may contribute to breakdown of the inner blood-retinal barrier, namely tumour necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6, IL-8, IL-17 and chemokine C-C motif ligand (CCL)2. This article reviews the function of each cytokine and discusses the evidence for their involvement in retinal endothelial barrier dysfunction in non-infectious uveitis, including basic laboratory investigations, studies of ocular fluids collected from patients with non-infectious uveitis, and results of clinical treatment trials. The review also outlines gaps in knowledge in this area. Understanding the disease processes at a molecular level can suggest treatment alternatives that are directed against appropriate biological targets to protect the posterior segment of eye and preserve vision in non-infectious uveitis.
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Affiliation(s)
| | - Keryn A Williams
- Flinders University College of Medicine and Public HealthAdelaideSAAustralia
| | - Giles Best
- Flinders University College of Medicine and Public HealthAdelaideSAAustralia
| | - Cameron D Haydinger
- Flinders University College of Medicine and Public HealthAdelaideSAAustralia
| | - Justine R Smith
- Flinders University College of Medicine and Public HealthAdelaideSAAustralia
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6
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Chrienova Z, Rysanek D, Novak J, Vasicova P, Oleksak P, Andrys R, Skarka A, Dumanovic J, Milovanovic Z, Jacevic V, Chvojkova M, Holubova K, Vales K, Skoupilova V, Valko M, Jomova K, Alomar SY, Botelho FD, Franca TCC, Kuca K, Hodny Z, Nepovimova E. Frentizole derivatives with mTOR inhibiting and senomorphic properties. Biomed Pharmacother 2023; 167:115600. [PMID: 37783152 DOI: 10.1016/j.biopha.2023.115600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/09/2023] [Accepted: 09/25/2023] [Indexed: 10/04/2023] Open
Abstract
Frentizole is immunosuppressive drug with low acute toxicity and lifespan-prolonging effect. Recently, frentizole´s potential to disrupt toxic amyloid β (Aβ) - Aβ-binding alcohol dehydrogenase (ABAD) interaction in mitochondria in Alzheimer´s brains has been revealed. Another broadly studied drug with anti-aging and immunosuppressive properties is an mTOR inhibitor - rapamycin. Since we do not yet precisely know what is behind the lifespan-prolonging effect of rapamycin and frentizole, whether it is the ability to inhibit the mTOR signaling pathway, reduction in mitochondrial toxicity, immunosuppressive effect, or a combination of all of them, we have decided within our previous work to dock the entire in-house library of almost 240 Aβ-ABAD modulators into the FKBP-rapamycin-binding (FRB) domain of mTOR in order to interlink mTOR-centric and mitochondrial free radical-centric theories of aging and thus to increase the chances of success. Based on the results of the docking study, molecular dynamic simulation and MM-PBSA calculations, we have selected nine frentizole-like compounds (1 - 9). Subsequently, we have determined their real physical-chemical properties (logP, logD, pKa and solubility in water and buffer), cytotoxic/cytostatic, mTOR inhibitory, and in vitro anti-senescence (senolytic and senomorphic) effects. Finally, the three best candidates (4, 8, and 9) have been forwarded for in vivo safety studies to assess their acute toxicity and pharmacokinetic properties. Based on obtained results, only compound 4 demonstrated the best results within in vitro testing, the ability to cross the blood-brain barrier and the lowest acute toxicity (LD50 in male mice 559 mg/kg; LD50 in female mice 575 mg/kg).
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Affiliation(s)
- Zofia Chrienova
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic
| | - David Rysanek
- Department of Genome Integrity, Institute of Molecular Genetics of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic
| | - Josef Novak
- Department of Genome Integrity, Institute of Molecular Genetics of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic
| | - Pavla Vasicova
- Department of Genome Integrity, Institute of Molecular Genetics of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic
| | - Patrik Oleksak
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic
| | - Rudolf Andrys
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic
| | - Adam Skarka
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic
| | - Jelena Dumanovic
- Faculty of Chemistry, University of Belgrade, Studenski trg 16, 11000 Belgrade, Serbia
| | - Zoran Milovanovic
- Special Police Unit, Ministry of Interior, Trebevićka 12/A, 11030 Belgrade, Serbia
| | - Vesna Jacevic
- Department of Experimental Toxicology and Pharmacology, National Poison Control Centre, Military Medical Academy & Medical Faculty of the Military Medical Academy, University of Defence, 11 Crnotravska, 11000 Belgrade, Serbia
| | - Marketa Chvojkova
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic; National Institute of Mental Health, Topolova 748, 250 67 Klecany, Czech Republic
| | - Kristina Holubova
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic; National Institute of Mental Health, Topolova 748, 250 67 Klecany, Czech Republic
| | - Karel Vales
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic; National Institute of Mental Health, Topolova 748, 250 67 Klecany, Czech Republic; Third Faculty of Medicine, Charles University, Ruska 87, 100 00 Prague 10, Czech Republic
| | - Veronika Skoupilova
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic
| | - Marian Valko
- Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, 812 37 Bratislava, Slovakia
| | - Klaudia Jomova
- Department of Chemistry, Faculty of Natural Sciences and Informatics, Constantine the Philosopher University in Nitra, 949 01 Nitra, Slovakia
| | - Suliman Y Alomar
- Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Fernanda D Botelho
- Laboratory of Molecular Modeling Applied to Chemical and Biological Defense (LMCBD), Military Institute of Engineering, 22290-270 Rio de Janeiro, RJ, Brazil
| | - Tanos C C Franca
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic; Laboratory of Molecular Modeling Applied to Chemical and Biological Defense (LMCBD), Military Institute of Engineering, 22290-270 Rio de Janeiro, RJ, Brazil
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic
| | - Zdenek Hodny
- Department of Genome Integrity, Institute of Molecular Genetics of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic.
| | - Eugenie Nepovimova
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03 Hradec Kralove, Czech Republic.
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Cooper ID, Kyriakidou Y, Edwards K, Petagine L, Seyfried TN, Duraj T, Soto-Mota A, Scarborough A, Jacome SL, Brookler K, Borgognoni V, Novaes V, Al-Faour R, Elliott BT. Ketosis Suppression and Ageing (KetoSAge): The Effects of Suppressing Ketosis in Long Term Keto-Adapted Non-Athletic Females. Int J Mol Sci 2023; 24:15621. [PMID: 37958602 PMCID: PMC10650498 DOI: 10.3390/ijms242115621] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 10/16/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
Most studies on ketosis have focused on short-term effects, male athletes, or weight loss. Hereby, we studied the effects of short-term ketosis suppression in healthy women on long-standing ketosis. Ten lean (BMI 20.5 ± 1.4), metabolically healthy, pre-menopausal women (age 32.3 ± 8.9) maintaining nutritional ketosis (NK) for > 1 year (3.9 years ± 2.3) underwent three 21-day phases: nutritional ketosis (NK; P1), suppressed ketosis (SuK; P2), and returned to NK (P3). Adherence to each phase was confirmed with daily capillary D-beta-hydroxybutyrate (BHB) tests (P1 = 1.9 ± 0.7; P2 = 0.1 ± 0.1; and P3 = 1.9 ± 0.6 pmol/L). Ageing biomarkers and anthropometrics were evaluated at the end of each phase. Ketosis suppression significantly increased: insulin, 1.78-fold from 33.60 (± 8.63) to 59.80 (± 14.69) pmol/L (p = 0.0002); IGF1, 1.83-fold from 149.30 (± 32.96) to 273.40 (± 85.66) µg/L (p = 0.0045); glucose, 1.17-fold from 78.6 (± 9.5) to 92.2 (± 10.6) mg/dL (p = 0.0088); respiratory quotient (RQ), 1.09-fold 0.66 (± 0.05) to 0.72 (± 0.06; p = 0.0427); and PAI-1, 13.34 (± 6.85) to 16.69 (± 6.26) ng/mL (p = 0.0428). VEGF, EGF, and monocyte chemotactic protein also significantly increased, indicating a pro-inflammatory shift. Sustained ketosis showed no adverse health effects, and may mitigate hyperinsulinemia without impairing metabolic flexibility in metabolically healthy women.
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Affiliation(s)
- Isabella D. Cooper
- Ageing Biology and Age-Related Diseases, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (Y.K.); (L.P.); (A.S.); (S.L.J.); (V.B.); (V.N.); (R.A.-F.); (B.T.E.)
| | - Yvoni Kyriakidou
- Ageing Biology and Age-Related Diseases, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (Y.K.); (L.P.); (A.S.); (S.L.J.); (V.B.); (V.N.); (R.A.-F.); (B.T.E.)
| | - Kurtis Edwards
- Cancer Biomarkers and Mechanisms Group, School of Life Sciences, University of Westminster, London W1W 6UW, UK;
| | - Lucy Petagine
- Ageing Biology and Age-Related Diseases, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (Y.K.); (L.P.); (A.S.); (S.L.J.); (V.B.); (V.N.); (R.A.-F.); (B.T.E.)
| | - Thomas N. Seyfried
- Biology Department, Boston College, Chestnut Hill, MA 02467, USA; (T.N.S.); (T.D.)
| | - Tomas Duraj
- Biology Department, Boston College, Chestnut Hill, MA 02467, USA; (T.N.S.); (T.D.)
| | - Adrian Soto-Mota
- Metabolic Diseases Research Unit, National Institute of Medical Sciences and Nutrition Salvador Zubiran, Mexico City 14080, Mexico;
- Tecnologico de Monterrey, School of Medicine, Mexico City 14380, Mexico
| | - Andrew Scarborough
- Ageing Biology and Age-Related Diseases, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (Y.K.); (L.P.); (A.S.); (S.L.J.); (V.B.); (V.N.); (R.A.-F.); (B.T.E.)
| | - Sandra L. Jacome
- Ageing Biology and Age-Related Diseases, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (Y.K.); (L.P.); (A.S.); (S.L.J.); (V.B.); (V.N.); (R.A.-F.); (B.T.E.)
| | - Kenneth Brookler
- Retired former Research Collaborator, Aerospace Medicine and Vestibular Research Laboratory, Mayo Clinic, Scottsdale, AZ 85259, USA;
| | - Valentina Borgognoni
- Ageing Biology and Age-Related Diseases, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (Y.K.); (L.P.); (A.S.); (S.L.J.); (V.B.); (V.N.); (R.A.-F.); (B.T.E.)
| | - Vanusa Novaes
- Ageing Biology and Age-Related Diseases, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (Y.K.); (L.P.); (A.S.); (S.L.J.); (V.B.); (V.N.); (R.A.-F.); (B.T.E.)
| | - Rima Al-Faour
- Ageing Biology and Age-Related Diseases, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (Y.K.); (L.P.); (A.S.); (S.L.J.); (V.B.); (V.N.); (R.A.-F.); (B.T.E.)
| | - Bradley T. Elliott
- Ageing Biology and Age-Related Diseases, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK; (Y.K.); (L.P.); (A.S.); (S.L.J.); (V.B.); (V.N.); (R.A.-F.); (B.T.E.)
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He S, Yao L, Li J. Role of MCP-1/CCR2 axis in renal fibrosis: Mechanisms and therapeutic targeting. Medicine (Baltimore) 2023; 102:e35613. [PMID: 37861543 PMCID: PMC10589562 DOI: 10.1097/md.0000000000035613] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 09/21/2023] [Indexed: 10/21/2023] Open
Abstract
Renal fibrosis is a common pathological manifestation in various chronic kidney diseases. Inflammation plays a central role in renal fibrosis development. Owing to their significant participation in inflammation and autoimmunity, chemokines have always been the hot spot and focus of scientific research and clinical intervention. Among the chemokines, monocyte chemoattractant protein-1 (MCP-1), also known as C-C motif chemokine ligand 2, together with its main receptor C-C chemokine receptor type 2 (CCR2) are important chemokines in renal fibrosis. The MCP-1/CCR2 axis is activated when MCP-1 binds to CCR2. Activation of MCP-1/CCR2 axis can induce chemotaxis and activation of inflammatory cells, and initiate a series of signaling cascades in renal fibrosis. It mediates and promotes renal fibrosis by recruiting monocyte, promoting the activation and transdifferentiation of macrophages. This review summarizes the complex physical processes of MCP-1/CCR2 axis in renal fibrosis and addresses its general mechanism in renal fibrosis by using specific examples, together with the progress of targeting MCP-1/CCR2 in renal fibrosis with a view to providing a new direction for renal fibrosis treatment.
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Affiliation(s)
- Shiyang He
- The Fifth Affiliated Hospital of Zunyi Medical University, Zhuhai, China
- Basic and Applied Laboratory of Traditional Chinese Medicine, Zunyi Medical University Zhuhai Campus, Zhuhai, China
| | - Lan Yao
- The Fifth Affiliated Hospital of Zunyi Medical University, Zhuhai, China
- Blood Purification Center, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jun Li
- The Fifth Affiliated Hospital of Zunyi Medical University, Zhuhai, China
- Basic and Applied Laboratory of Traditional Chinese Medicine, Zunyi Medical University Zhuhai Campus, Zhuhai, China
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Röhl L, Wellhausen J, Berszin M, Krücken I, Zebralla V, Pirlich M, Wiegand S, Dietz A, Wald T, Wichmann G. Immune checkpoint blockade induced shifts in cytokine expression patterns in peripheral blood of head and neck cancer patients are linked to outcome. Front Immunol 2023; 14:1237623. [PMID: 37849764 PMCID: PMC10577218 DOI: 10.3389/fimmu.2023.1237623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 09/12/2023] [Indexed: 10/19/2023] Open
Abstract
Background Immune-checkpoint blockade (ICB) of programmed-death-1 (PD-1) with pembrolizumab or nivolumab is approved for treating recurrent/metastatic (R/M) head and neck squamous cell carcinoma (HNSCC). NadiHN and ADRISK are phase IIB trials investigating in locally advanced (LA) HNSCC having low or high risk of recurrence the potential benefits from adding nivolumab to post-operative radiotherapy or pembrolizumab to cisplatin-based radio-chemotherapy. Methods Along five randomized controlled ICB trials including NadiHN and ADRISK, blood samples were taken before and after starting ICB in n=25 patients. Concentrations of vascular endothelial growth factor A (VEGF), CCL2 (MCP-1), interleukin-6 (IL-6), IL-8, interferon-gamma (IFN-γ), and CXCL10 (IP-10) pre- and post-ICB in EDTA-anticoagulated plasma and serum were compared. We used receiver operating characteristic (ROC) curves to identify optimal cutoff for defining subgroups before analyzing overall survival (OS) applying Kaplan-Meier plots and multivariate Cox regression. Results We detected huge heterogeneity between cytokine patterns in pre-and post-ICB plasma and serum. We observed high correlation between concentrations of some cytokines. Despite absent systematic OS differences after ICB with pembrolizumab or nivolumab or between LA-HNSCC versus R/M HNSCC patients, we noticed improved outcome of patients having lower IFN-γ concentrations pre- and post-ICB and following ICB reduced concentrations of VEGF, IL-6, and IL-8 but not MCP-1. Contrarily, increases in IL-6, IL-8, and VEGF levels correlated with impaired outcome. Multivariate Cox regression revealed five independent OS predictors among cytokines; using natural logarithms of their hazard ratios to estimate an individual's risk of dying, three cytokine-expression pattern (CEP)-risk groups with no death within mean (95% confidence interval) follow-up of 29.2 (22.1-36.2) months and median OS of 11.3 (8.8-13.8) and 2.9 (0.4-5.4) months were found. Conclusion Whereas individual pre- or post-ICB cytokine concentrations in serum or plasma alone failed to predict the survivor group, CEP-risk groups may support the identification of individual patients with long-lasting benefit from ICB.
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Affiliation(s)
- Louisa Röhl
- Department of Otorhinolaryngology, Head and Neck surgery, University Hospital Leipzig, Leipzig, Germany
| | - Jana Wellhausen
- Department of Otorhinolaryngology, Head and Neck surgery, University Hospital Leipzig, Leipzig, Germany
| | - Michael Berszin
- Department of Otorhinolaryngology, Head and Neck surgery, University Hospital Leipzig, Leipzig, Germany
| | - Irene Krücken
- Institute of Pathology, University Hospital Leipzig, Leipzig, Germany
| | - Veit Zebralla
- Department of Otorhinolaryngology, Head and Neck surgery, University Hospital Leipzig, Leipzig, Germany
| | - Markus Pirlich
- Department of Otorhinolaryngology, Head and Neck surgery, University Hospital Leipzig, Leipzig, Germany
| | - Susanne Wiegand
- Department of Otorhinolaryngology, Head and Neck surgery, University Hospital Leipzig, Leipzig, Germany
| | - Andreas Dietz
- Department of Otorhinolaryngology, Head and Neck surgery, University Hospital Leipzig, Leipzig, Germany
| | - Theresa Wald
- Department of Otorhinolaryngology, Head and Neck surgery, University Hospital Leipzig, Leipzig, Germany
| | - Gunnar Wichmann
- Department of Otorhinolaryngology, Head and Neck surgery, University Hospital Leipzig, Leipzig, Germany
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Russo V, Falco L, Tessitore V, Mauriello A, Catapano D, Napolitano N, Tariq M, Caturano A, Ciccarelli G, D’Andrea A, Giordano A. Anti-Inflammatory and Anticancer Effects of Anticoagulant Therapy in Patients with Malignancy. Life (Basel) 2023; 13:1888. [PMID: 37763292 PMCID: PMC10532829 DOI: 10.3390/life13091888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
Optimizing the anticoagulation therapy is of pivotal importance in patients with a malignant tumor, as venous thromboembolism (VTE) has become the second-leading cause of death in this population. Cancer can highly increase the risk of thrombosis and bleeding. Consequently, the management of cancer-associated VTE is complex. In recent years, translational research has intensified, and several studies have highlighted the role of inflammatory cytokines in cancer growth and progression. Simultaneously, the pleiotropic effects of anticoagulants currently recommended for VTE have emerged. In this review, we describe the anti-inflammatory and anticancer effects of both direct oral anticoagulants (DOACs) and low-molecular-weight heparins (LWMHs).
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Affiliation(s)
- Vincenzo Russo
- Cardiology Unit, Department of Medical Translational Science, University of Campania “Luigi Vanvitelli”—Monaldi Hospital, 80126 Naples, NA, Italy
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA
| | - Luigi Falco
- Cardiology Unit, Department of Medical Translational Science, University of Campania “Luigi Vanvitelli”—Monaldi Hospital, 80126 Naples, NA, Italy
| | - Viviana Tessitore
- Cardiology Unit, Department of Medical Translational Science, University of Campania “Luigi Vanvitelli”—Monaldi Hospital, 80126 Naples, NA, Italy
| | - Alfredo Mauriello
- Cardiology Unit, Department of Medical Translational Science, University of Campania “Luigi Vanvitelli”—Monaldi Hospital, 80126 Naples, NA, Italy
| | - Dario Catapano
- Cardiology Unit, Department of Medical Translational Science, University of Campania “Luigi Vanvitelli”—Monaldi Hospital, 80126 Naples, NA, Italy
| | - Nicola Napolitano
- Cardiology Unit, Department of Medical Translational Science, University of Campania “Luigi Vanvitelli”—Monaldi Hospital, 80126 Naples, NA, Italy
| | - Moiz Tariq
- Cardiology Unit, Department of Medical Translational Science, University of Campania “Luigi Vanvitelli”—Monaldi Hospital, 80126 Naples, NA, Italy
| | - Alfredo Caturano
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Piazza Luigi Miraglia 2, 80138 Naples, NA, Italy (A.D.)
| | - Giovanni Ciccarelli
- Cardiology Unit, Department of Medical Translational Science, University of Campania “Luigi Vanvitelli”—Monaldi Hospital, 80126 Naples, NA, Italy
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA
| | - Antonello D’Andrea
- Department of Advanced Medical and Surgical Sciences, University of Campania Luigi Vanvitelli, Piazza Luigi Miraglia 2, 80138 Naples, NA, Italy (A.D.)
- Cardiology Unit, Umberto I Hospital, 84014 Nocera Inferiore, SA, Italy
| | - Antonio Giordano
- Sbarro Institute for Cancer Research and Molecular Medicine, Center for Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA 19122, USA
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Huang Y, Omorou M, Gao M, Mu C, Xu W, Xu H. Hydrogen sulfide and its donors for the treatment of cerebral ischaemia-reperfusion injury: A comprehensive review. Biomed Pharmacother 2023; 161:114506. [PMID: 36906977 DOI: 10.1016/j.biopha.2023.114506] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
As an endogenous gas signalling molecule, hydrogen sulfide (H2S) is frequently present in a variety of mammals and plays a significant role in the cardiovascular and nervous systems. Reactive oxygen species (ROS) are produced in large quantities as a result of cerebral ischaemia-reperfusion, which is a very serious class of cerebrovascular diseases. ROS cause oxidative stress and induce specific gene expression that results in apoptosis. H2S reduces cerebral ischaemia-reperfusion-induced secondary injury via anti-oxidative stress injury, suppression of the inflammatory response, inhibition of apoptosis, attenuation of cerebrovascular endothelial cell injury, modulation of autophagy, and antagonism of P2X7 receptors, and it plays an important biological role in other cerebral ischaemic injury events. Despite the many limitations of the hydrogen sulfide therapy delivery strategy and the difficulty in controlling the ideal concentration, relevant experimental evidence demonstrating that H2S plays an excellent neuroprotective role in cerebral ischaemia-reperfusion injury (CIRI). This paper examines the synthesis and metabolism of the gas molecule H2S in the brain as well as the molecular mechanisms of H2S donors in cerebral ischaemia-reperfusion injury and possibly other unknown biological functions. With the active development in this field, it is expected that this review will assist researchers in their search for the potential value of hydrogen sulfide and provide new ideas for preclinical trials of exogenous H2S.
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Affiliation(s)
- Yiwei Huang
- Basic Medical College, Jiamusi University, Jiamusi 154007, Heilongjiang, China; Key Laboratory of Microecology-Immune Regulatory Network and Related Diseases, Jiamusi 154007, Heilongjiang, China.
| | - Moussa Omorou
- Key Laboratory of Microecology-Immune Regulatory Network and Related Diseases, Jiamusi 154007, Heilongjiang, China; Basic Medical College, Jiamusi University, Jiamusi 154007, Heilongjiang, China.
| | - Meng Gao
- Key Laboratory of Microecology-Immune Regulatory Network and Related Diseases, Jiamusi 154007, Heilongjiang, China; Basic Medical College, Jiamusi University, Jiamusi 154007, Heilongjiang, China.
| | - Chenxi Mu
- Key Laboratory of Microecology-Immune Regulatory Network and Related Diseases, Jiamusi 154007, Heilongjiang, China; Basic Medical College, Jiamusi University, Jiamusi 154007, Heilongjiang, China.
| | - Weijing Xu
- School of Public Health, Jiamusi University, Jiamusi 154007, Heilongjiang, China.
| | - Hui Xu
- Key Laboratory of Microecology-Immune Regulatory Network and Related Diseases, Jiamusi 154007, Heilongjiang, China.
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Lin Z, Liao L, Zhao S, Gu W, Wang G, Shen Z, Wang Y, Chen K, Liu W, Cai Y, Wan C, Yan T. Corylin inhibits the progression of Non-small cell lung cancer cells by regulating NF-κB signaling pathway via targeting p65. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 110:154627. [PMID: 36610351 DOI: 10.1016/j.phymed.2022.154627] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 11/29/2022] [Accepted: 12/24/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Lung cancer is characterized by high-risk and high mortality, among which non-small cell lung cancer (NSCLC) conquers a dominant position. Previous studies have reported that corylin has anti-inflammatory, anti-oxidant, and anti-tumor effects; however, its role in NSCLC cells remains unclear. HYPOTHESIS Corylin inhibits the progression of NSCLC cells. METHODS A lentivector NF-κB luciferase reporter was constructed by molecular cloning. Corylin was screened and identified as an NF-κB pathway inhibitor by luciferase reporter assay. Corylin inhibited the expression of NF-κB downstream genes, which was detected by qRT-PCR. The effect of corylin on NSCLC cells was detected by colony formation assay, cell apoptosis, cell proliferation, in vitro invasion, and cell scratch assay. Corylin inhibited p65 nuclear translocation and was detected by molecular docking, immunofluorescence assay, and Western blot analysis. RESULTS We constructed a lentiviral expression vector, containing an NF-κB luciferase reporter and established a stable A549 cell line for its expression. Using this cell line, corylin was screened and identified as an NF-κB pathway inhibitor. It was found that corylin inhibited the expression of NF-κB downstream genes and inhibited the proliferation and migration of NSCLC cells. Meanwhile, it was also found that corylin significantly reversed the increased proliferation of NSCLC cell lines induced by p65 overexpression. Molecular docking analysis showed that corylin could bind to p65 by hydrogen bonding. Further study showed that corylin inhibited the NF-κB signaling pathway by blocking p65 nuclear translocation. CONCLUSIONS Our study screened and identified corylin as an NF-κB inhibitor and elucidated the molecular mechanism by which corylin inhibits the growth of NSCLC cells. The present study provides a novel strategy for improving the prognosis and treatment of NSCLC patients.
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Affiliation(s)
- Zihan Lin
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Lijuan Liao
- Department of Pathology, Women and Children's Hospital, Decheng Dezhou, Shandong 253017, China
| | - Shengchao Zhao
- School of Life Sciences, Shanghai University, Shanghai 200444, China; Key Lab of Natural Product Chemistry and Application at Universities of Education Department of Xinjiang Uygur Autonomous Region, Yili Normal University, Yining 835000, China
| | - Wei Gu
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Guanzhen Wang
- School of Life Sciences, Shanghai University, Shanghai 200444, China; Key Lab of Natural Product Chemistry and Application at Universities of Education Department of Xinjiang Uygur Autonomous Region, Yili Normal University, Yining 835000, China
| | - Ziyi Shen
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Yuanhui Wang
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Kun Chen
- School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Wei Liu
- Key Lab of Natural Product Chemistry and Application at Universities of Education Department of Xinjiang Uygur Autonomous Region, Yili Normal University, Yining 835000, China
| | - Yi Cai
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, China.
| | - Chunpeng Wan
- Jiangxi Key Laboratory for Postharvest Technology and Nondestructive Testing of Fruits & Vegetables, College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China.
| | - Tingdong Yan
- School of Life Sciences, Shanghai University, Shanghai 200444, China; Zhejiang Xinda Hospital, Huzhou 313099, China.
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Knock-out of 5-lipoxygenase in overexpressing tumor cells-consequences on gene expression and cellular function. Cancer Gene Ther 2023; 30:108-123. [PMID: 36114329 PMCID: PMC9842508 DOI: 10.1038/s41417-022-00531-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 08/05/2022] [Accepted: 08/26/2022] [Indexed: 01/21/2023]
Abstract
5-Lipoxygenase (5-LO), the central enzyme in the biosynthesis of leukotrienes, is frequently expressed in human solid malignancies even though the enzyme is not present in the corresponding healthy tissues. There is little knowledge on the consequences of this expression for the tumor cells regarding gene expression and cellular function. We established a knockout (KO) of 5-LO in different cancer cell lines (HCT-116, HT-29, U-2 OS) and studied the consequences on global gene expression using next generation sequencing. Furthermore, cell viability, proliferation, migration and multicellular tumor spheroid (MCTS) formation were studied in these cells. Our results show that 5-LO influences the gene expression and cancer cell function in a cell type-dependent manner. The enzyme affected genes involved in cell adhesion, extracellular matrix formation, G protein signaling and cytoskeleton organization. Furthermore, absence of 5-LO elevated TGFβ2 expression in HCT-116 cells while MCP-1, fractalkine and platelet-derived growth factor expression was attenuated in U-2 OS cells suggesting that tumor cell-derived 5-LO shapes the tumor microenvironment. In line with the gene expression data, KO of 5-LO had an impact on cell proliferation, motility and MCTS formation. Interestingly, pharmacological inhibition of 5-LO only partly mimicked the KO suggesting that also noncanonical functions are involved.
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