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Lu J, Ling X, Liu L, Jiang A, Ren C, Lu C, Yu Z. Emerging hallmarks of endometriosis metabolism: A promising target for the treatment of endometriosis. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2023; 1870:119381. [PMID: 36265657 DOI: 10.1016/j.bbamcr.2022.119381] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 10/06/2022] [Accepted: 10/09/2022] [Indexed: 11/13/2022]
Abstract
Endometriosis, characterized by ectopic endometrium growth in the extrauterine environment, is one of the most notable diseases of the female reproductive system. Worldwide, endometriosis affects nearly 10 % of women in their reproductive years and causes a significant decline in quality of life. Despite extensive investigations of endometriosis over the past years, the mechanisms of endometriosis pathogenesis remain unclear. In recent years, metabolic factors have increasingly been considered factors in endometriosis. There is compelling evidence regarding the progress of endometriosis in the context of severe metabolic dysfunction. Hence, the curative strategies and ongoing attempts to conquer endometriosis might start with metabolic pathways. This review focuses on metabolic mechanisms and summarizes current research progress. These findings provide valuable information for the non-intrusive diagnosis of the disease and may contribute to the understanding of the pathogenesis of endometriosis.
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Affiliation(s)
- Jiayi Lu
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, PR China
| | - Xi Ling
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, PR China
| | - Lu Liu
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, PR China
| | - Aifang Jiang
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, PR China
| | - Chune Ren
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, PR China
| | - Chao Lu
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, PR China
| | - Zhenhai Yu
- Department of Reproductive Medicine, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, PR China.
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Oliveira CR, Polonini H, Marcucci MC, Vieira RP. Miodesin TM Positively Modulates the Immune Response in Endometrial and Vaginal Cells. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27030782. [PMID: 35164046 PMCID: PMC8837934 DOI: 10.3390/molecules27030782] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/14/2022] [Accepted: 01/24/2022] [Indexed: 11/16/2022]
Abstract
Endometriosis presents high prevalence and its physiopathology involves hyperactivation of endometrial and vaginal cells, especially by bacteria. The disease has no cure and therapies aiming to inhibit its development are highly desirable. Therefore, this study investigated whether MiodesinTM (10 µg/mL = IC80; 200 µg/mL = IC50), a natural compound constituted by Uncaria tomentosa, Endopleura uchi, and astaxanthin, could exert anti-inflammatory and anti-proliferative effects against Lipopolysaccharides (LPS) stimulation in endometrial and Candida albicans vaginal cell lines. VK2 E6/E7 (vaginal) and KLE (epithelial) cell lines were stimulated with Candida albicans (1 × 107 to 5 × 107/mL) and LPS (1 μg/mL), respectively. MiodesinTM inhibited mRNA expression for Nuclear factor kappa B (NF-κB), ciclo-oxigenase 1 (COX-1), and phospholipase A2 (PLA2), beyond the C–C motif chemokine ligand 2 (CCL2), CCL3, and CCL5 in VK2 E6/E7 cells (p < 0.05). In addition, the inhibitory effects of both doses of MiodesinTM (10 µg/mL and 200 µg/mL) resulted in reduced secretion of interleukin-1β (IL-1β), IL-6, IL-8, tumor necrosis factor α (TNF-α) (24 h, 48 h, and 72 h) and CCL2, CCL3, and CLL5 (p < 0.05) by VK2 E6/E7 cells. In the same way, COX-1 MiodesinTM inhibited LPS-induced hyperactivation of KLE cells, as demonstrated by reduced secretion of IL-1β, IL-6, IL-8, TNF-α (24 h, 48 h, and 72 h) and CCL2, CCL3, and CLL5 (p < 0.05). Furthermore, MiodesinTM also inhibited mRNA expression and secretion of matrix metalloproteinase-2 (MMP-2), MMP-9, and vascular endothelial growth factor (VEGF), which are key regulators of invasion of endometrial cells. Thus, the study concludes that MiodesinTM presents beneficial effects in the context of endometriosis, positively affecting the inflammatory and proliferative response.
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Affiliation(s)
- Carlos Rocha Oliveira
- School of Medicine, Anhembi Morumbi University, Avenida Deputado Benedito Matarazzo 6070, Sao Jose dos Campos 12231-280, SP, Brazil
- Postgraduate Program in Biomedical Engineering, Department of Science and Technology, Federal University of Sao Paulo (UNIFESP), Rua Talim, 330, Vila Nair, Sao Jose dos Campos 12231-280, SP, Brazil
- Correspondence:
| | - Hudson Polonini
- Fagron BV, Fascinatio Boulevard 350, 3065 WB Rotterdam, The Netherlands; or
| | - Maria Cristina Marcucci
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, Universidade Estadual Paulista-UNESP, Sao Jose dos Campos 12231-280, SP, Brazil;
| | - Rodolfo P. Vieira
- Post-graduation Program in Sciences of Human Movement and Rehabilitation, Federal University of Sao Paulo (UNIFESP), Avenida Ana Costa 95, Santos 11060-001, SP, Brazil;
- Post-Graduation Program in Human Movement and Rehabilitation, Unievangelica, Avenida Universitária KM 3,5, Anapolis 75083-515, GO, Brazil
- Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology (IBEPIPE), Rua Pedro Ernesto 240, Sao Jose dos Campos 12231-280, SP, Brazil
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Ortiz CN, Torres-Reverón A, Appleyard CB. Metabolomics in endometriosis: challenges and perspectives for future studies. REPRODUCTION AND FERTILITY 2021; 2:R35-R50. [PMID: 35128453 PMCID: PMC8812441 DOI: 10.1530/raf-20-0047] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 04/01/2021] [Indexed: 12/15/2022] Open
Abstract
Endometriosis is a complex disease characterized by inflammation and the growth of endometrial- like glands and stroma outside the uterine cavity. The pathophysiology of endometriosis is not entirely understood, however, with a prevalence of ~10% of women in their reproductive years, the disease symptoms significantly affect the quality of life of millions of women globally. Metabolomic studies have previously identified specific metabolites that could be a signature of endometriosis. This approach could potentially be used as a non-invasive tool for early diagnosis and provide a better understanding of endometriosis pathophysiology. This review aims to provide insight as to how endometriosis affects the metabolome by reviewing different studies that have used this approach to design follow-up studies. The search query included the term 'endometriosis' in combination with 'metabolomics', 'lipidomics', or 'sphingolipidomics' published between 2012 and 2020. We included studies in humans and animal models. Most studies reported differences in the metabolome of subjects with endometriosis in comparison to healthy controls and used samples taken from serum, endometrial tissue, follicular fluid, urine, peritoneal fluid, or endometrial fluid. Statistically significant metabolites contributed to group separation between patients and healthy controls. Reported metabolites included amino acids, lipids, organic acids, and other organic compounds. Differences in methods, analytical techniques, and the presence of confounding factors can interfere with results and interpretation of data. Metabolomics seems to be a promising tool for identifying significant metabolites in patients with endometriosis. Nonetheless, more investigation is needed in order to understand the significance of the study results.
Lay summary
Endometriosis is a chronic disease affecting the quality of life in one out of every ten women during their reproductive years, causing pain and infertility. It is characterized by inflammation and growth of tissue like the endometrium (uterus lining) outside the uterine cavity. Studies have searched for a predictor of endometriosis-associated changes by observing small molecules necessary for metabolism on a large scale (metabolomics). Metabolomics could serve to resolve one of the biggest challenges that patients with endometriosis face: a delay in diagnosis. In this review, the authors summarize identified potential biomarkers from various bodily fluids and tissues that are characteristic of metabolic processes observed in endometriosis. Biomarkers include cell growth, cell survival, high energy demand, oxidative stress, and fatty acid levels. A metabolomics approach offers promise as a non-invasive tool to identify significant metabolite changes in patients with endometriosis, potentially leading to earlier diagnoses and new opportunities for back-translational strategies.
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Affiliation(s)
- Camila N Ortiz
- Department of Basic Sciences, Ponce Health Sciences University, Ponce Research Institute, Ponce, Puerto Rico, USA
| | | | - Caroline B Appleyard
- Department of Basic Sciences, Ponce Health Sciences University, Ponce Research Institute, Ponce, Puerto Rico, USA
- Department of Internal Medicine, Ponce Health Sciences University, Ponce, Puerto Rico, USA
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Govorov I, Sitkin S, Pervunina T, Moskvin A, Baranenko D, Komlichenko E. Metabolomic Biomarkers in Gynecology: A Treasure Path or a False Path? Curr Med Chem 2020; 27:3611-3622. [PMID: 30608036 DOI: 10.2174/0929867326666190104124245] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 12/21/2018] [Accepted: 12/31/2018] [Indexed: 12/27/2022]
Abstract
Omic-technologies (genomics, transcriptomics, proteomics and metabolomics) have become more important in current medical science. Among them, it is metabolomics that most accurately reflects the minor changes in body functioning, as it focuses on metabolome - the group of the metabolism products, both intermediate and end. Therefore, metabolomics is actively engaged in fundamental and clinical studies and search for potential biomarkers. The biomarker could be used in diagnostics, management and stratification of the patients, as well as in prognosing the outcomes. The good example is gynecology, since many gynecological diseases lack effective biomarkers. In the current review, we aimed to summarize the results of the studies, devoted to the search of potential metabolomic biomarkers for the most common gynecological diseases.
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Affiliation(s)
- Igor Govorov
- Institute of Perinatology and Pediatric, Almazov National Medical Research Centre, Saint-Petersburg 197341, Russian Federation.,International Research Centre "Biotechnologies of the Third Millennium", ITMO University, Saint-Petersburg 197341, Russian Federation
| | - Stanislav Sitkin
- Institute of Perinatology and Pediatric, Almazov National Medical Research Centre, Saint-Petersburg 197341, Russian Federation.,International Research Centre "Biotechnologies of the Third Millennium", ITMO University, Saint-Petersburg 197341, Russian Federation.,North-Western State Medical University named after I.I. Mechnikov, St. Petersburg 191015, Russian Federation
| | - Tatyana Pervunina
- Institute of Perinatology and Pediatric, Almazov National Medical Research Centre, Saint-Petersburg 197341, Russian Federation.,International Research Centre "Biotechnologies of the Third Millennium", ITMO University, Saint-Petersburg 197341, Russian Federation
| | - Alexey Moskvin
- International Research Centre "Biotechnologies of the Third Millennium", ITMO University, Saint-Petersburg 197341, Russian Federation
| | - Denis Baranenko
- International Research Centre "Biotechnologies of the Third Millennium", ITMO University, Saint-Petersburg 197341, Russian Federation
| | - Eduard Komlichenko
- Institute of Perinatology and Pediatric, Almazov National Medical Research Centre, Saint-Petersburg 197341, Russian Federation.,International Research Centre "Biotechnologies of the Third Millennium", ITMO University, Saint-Petersburg 197341, Russian Federation
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Vicente-Muñoz S, Morcillo I, Puchades-Carrasco L, Payá V, Pellicer A, Pineda-Lucena A. Pathophysiologic processes have an impact on the plasma metabolomic signature of endometriosis patients. Fertil Steril 2016; 106:1733-1741.e1. [PMID: 27793377 DOI: 10.1016/j.fertnstert.2016.09.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 08/31/2016] [Accepted: 09/07/2016] [Indexed: 02/01/2023]
Abstract
OBJECTIVE To evaluate potential variations in the plasma metabolomic profile of endometriosis patients as a consequence of pathophysiologic alterations associated with this disorder. DESIGN Prospective study. For each subject, a plasma sample was collected after overnight fasting and before surgery. SETTING University medical center. PATIENT(S) The clinical cohort included 50 endometriosis patients, diagnosed at early (n = 6) and advanced (n = 44) stages of the disease, and 23 healthy women. All volunteers underwent diagnostic laparoscopy to visually confirm the presence or absence of endometriotic lesions. INTERVENTION(S) Metabolomic profiling of plasma samples based on 1H-nuclear magnetic resonance (NMR) spectroscopy in combination with statistical approaches. MAIN OUTCOME MEASURE(S) Comparative identification of metabolites present in plasma from endometriosis patients and healthy women. RESULT(S) The plasma metabolomic profile of endometriosis patients was characterized by increased concentration of valine, fucose, choline-containing metabolites, lysine/arginine, and lipoproteins and decreased concentration of creatinine compared with healthy women. Metabolic alterations identified in the plasma metabolomic profile of endometriosis patients correlate with pathophysiologic events previously described in the progression of this disease. CONCLUSION(S) The results highlight the potential of 1H-NMR-based metabolomics to characterize metabolic alterations associated with endometriosis in plasma samples. This information could be useful to get a better understanding of the molecular mechanisms involved in the pathogenesis of endometriosis, thus facilitating the noninvasive diagnosis of this pathology at early stages.
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Affiliation(s)
- Sara Vicente-Muñoz
- Structural Biochemistry Laboratory, Centro de Investigación Príncipe Felipe, Valencia, Spain; Department of Obstetrics and Gynecology, Hospital Universitario La Fe, Valencia, Spain
| | - Inmaculada Morcillo
- Department of Obstetrics and Gynecology, Hospital Universitario La Fe, Valencia, Spain
| | | | - Vicente Payá
- Department of Obstetrics and Gynecology, Hospital Universitario La Fe, Valencia, Spain
| | - Antonio Pellicer
- Department of Obstetrics and Gynecology, Hospital Universitario La Fe, Valencia, Spain; Instituto Valenciano de Infertilidad, Valencia, Spain
| | - Antonio Pineda-Lucena
- Structural Biochemistry Laboratory, Centro de Investigación Príncipe Felipe, Valencia, Spain; Instituto de Investigación Sanitaria La Fe, Valencia, Spain.
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Kocbek V, Bersinger NA, Brglez V, Mueller MD, Petan T, Rižner TL. Phospholipase A2 group IIA is elevated in endometriomas but not in peritoneal fluid and serum of ovarian endometriosis patients. Gynecol Endocrinol 2015; 31:214-8. [PMID: 25366587 DOI: 10.3109/09513590.2014.975690] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Our previous gene expression analysis identified phospholipase A2 group IIA (PLA2G2A) as a potential biomarker of ovarian endometriosis. The aim of this study was to evaluate PLA2G2A mRNA and protein levels in tissue samples (endometriomas and normal endometrium) and in serum and peritoneal fluid of ovarian endometriosis patients and control women. One-hundred and sixteen women were included in this study: the case group included 70 ovarian endometriosis patients, and the control group included 38 healthy women and 8 patients with benign ovarian cysts. We observed 41.6-fold greater PLA2G2A mRNA levels in endometrioma tissue, compared to normal endometrium tissue. Using Western blotting, PLA2G2A was detected in all samples of endometriomas, but not in normal endometrium, and immunohistochemistry showed PLA2G2A-specific staining in epithelial cells of endometrioma paraffin sections. However, there were no significant differences in PLA2G2A levels between cases and controls according to ELISA of peritoneal fluid (6.0 ± 4.4 ng/ml, 6.6 ± 4.3 ng/ml; p = 0.5240) and serum (2.9 ± 2.1 ng/ml, 3.1 ± 2.2 ng/ml; p = 0.7989). Our data indicate that PLA2G2A is implicated in the pathophysiology of ovarian endometriosis, but that it cannot be used as a diagnostic biomarker.
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Affiliation(s)
- Vida Kocbek
- Institute of Biochemistry, Faculty of Medicine, University of Ljubljana , Ljubljana , Slovenia
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Kim KH, Kim HY, Kim HH, Lee KS, Cheong J. Hypoxia induces expression of COX-2 through the homeodomain transcription factor CDX1 and orphan nuclear receptor SHP in human endometrial cells. ACTA ACUST UNITED AC 2011; 17:710-9. [DOI: 10.1093/molehr/gar036] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Lousse JC, Defrère S, Colette S, Van Langendonckt A, Donnez J. Expression of eicosanoid biosynthetic and catabolic enzymes in peritoneal endometriosis. Hum Reprod 2009; 25:734-41. [PMID: 20023295 DOI: 10.1093/humrep/dep408] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Increased peritoneal eicosanoid concentrations have been reported in endometriosis patients and might be important in disease-associated pain and inflammation. Here, we evaluated the expression of key biosynthetic and catabolic enzymes involved in this abnormal eicosanoid production in peritoneal macrophages and endometriotic lesions. METHODS Peritoneal macrophages, endometriotic lesions and matched eutopic endometrium were collected from endometriosis patients (n = 40). Peritoneal macrophages and eutopic endometrium samples were also collected from disease-free women (n = 25). Expression of type IIA secretory phospholipase A(2) (sPLA(2)-IIA), cyclooxygenase-2 (COX-2), microsomal prostaglandin E synthase-1 (mPGES-1), 15-hydroxyprostaglandin dehydrogenase (15-PGDH) and 5-lipoxygenase (5-LO) was quantified by real-time PCR, and these five key enzymes were localized by immunohistochemistry. RESULTS sPLA(2)-IIA, COX-2 and mPGES-1 mRNA was significantly increased in peritoneal macrophages of endometriosis patients compared with controls (P = 0.006, P = 0.016 and P = 0.025, respectively). In endometriosis patients, sPLA(2)-IIA, mPGES-1 and 15-PGDH mRNA was significantly enhanced in peritoneal lesions compared with matched eutopic endometrium (P < 0.001, P < 0.001 and P = 0.005, respectively). In eutopic endometrium, a significant decrease in 15-PGDH mRNA was found in the endometriosis group compared with controls (P = 0.023). Finally, sPLA(2)-IIA, COX-2, mPGES-1 and 15-PGDH immunostaining was found mainly in endometrial glands, whereas 5-LO was distributed throughout the glands and stroma. CONCLUSIONS Our study highlights an imbalance between eicosanoid biosynthesis and degradation in endometriosis patients. Both peritoneal macrophages and endometriotic lesions may be involved. Research into new molecules inhibiting biosynthetic enzymes (such as sPLA(2)-IIA and mPGES-1) and/or activating catabolic enzymes (such as 15-PGDH) may prove to be a major field of investigation in the development of targeted medical therapies.
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Affiliation(s)
- J-C Lousse
- Department of Gynecology, Université Catholique de Louvain, Cliniques Universitaires Saint-Luc, Avenue Hippocrate 10, 1200 Brussels, Belgium
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Eyster KM, Klinkova O, Kennedy V, Hansen KA. Whole genome deoxyribonucleic acid microarray analysis of gene expression in ectopic versus eutopic endometrium. Fertil Steril 2007; 88:1505-33. [PMID: 17462640 DOI: 10.1016/j.fertnstert.2007.01.056] [Citation(s) in RCA: 121] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2006] [Revised: 01/11/2007] [Accepted: 01/11/2007] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To use DNA microarrays to identify differentially expressed genes in eutopic endometrium compared with ectopic endometrium. DESIGN Prospective, cross-sectional, observational study. SETTING University Medical Center and Research Laboratory. PATIENT(S) Eleven women with endometriosis. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Differential gene expression. RESULT(S) Seven hundred seventeen of the 53,000 probes on the whole human DNA microarrays were changed by twofold or greater in ectopic versus eutopic endometrium. Families of genes that were expressed differentially include genes that code for proteins associated with the immune system and inflammatory pathways, cell adhesion, cell-cell junctions, the extracellular matrix and its remodeling, cytoskeletal proteins, and signal transduction pathway components, among others. CONCLUSION(S) The altered immune environment may allow survival of endometriotic cells that enter the abdominal cavity. Alterations of cell adhesion-associated genes may contribute to the adhesive and invasive properties of ectopic endometrium, and changes in signal transduction pathways support a change in the communication among cells of the endometrial explant compared with eutopic endometrium. These families of differentially expressed genes provide multiple opportunities for the development and testing of new hypotheses regarding endometriosis.
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Affiliation(s)
- Kathleen M Eyster
- Division of Basic Biomedical Sciences, Sanford School of Medicine of the University of South Dakota, Vermillion, South Dakota 57069, USA.
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Tsukahara Y, Morisaki T, Horita Y, Torisu M, Tanaka M. Phospholipase A2 mediates nitric oxide production by alveolar macrophages and acute lung injury in pancreatitis. Ann Surg 1999; 229:385-92. [PMID: 10077051 PMCID: PMC1191704 DOI: 10.1097/00000658-199903000-00012] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Reportedly, nitric oxide (NO) derived from alveolar macrophages (AMs) and increased serum phospholipase A2 (PLA2) activity are associated with the pathogenesis of lung injury in acute pancreatitis. The authors examined the possibility that PLA2 causes, in part, the induction of NO production by AMs in pancreatitis. METHODS Pancreatitis was induced in rats by selective pancreatic duct ligation (SPL). AMs were stimulated with PLA2 or SPL rat serum, with or without administration of the PLA2 inhibitor quinacrine. Then NO production from the AMs was measured by the Griess method, inducible NO synthase mRNA expression of AMs was analyzed by the reverse transcription-polymerase chain reaction, and cytotoxic effects of AMs on human umbilical vein endothelial cells was examined by a 51Cr release assay. In vivo, the effect of quinacrine on lung injury was determined by measuring the arterial blood oxygen pressure (PaO2), lung weight, and lung permeability using Evans blue dye concentration of SPL rat. RESULTS In vitro, the serum with high PLA2 activity induced NO production by rat AMs. PLA2 (50 ng/ml) induced significant amounts of NO production, inducible NO synthase mRNA expression, and cytotoxicity toward the human umbilical vein endothelial cells in normal rat AMs, and these activities were significantly inhibited by quinacrine. In vivo, rats with pancreatitis that were given quinacrine showed decreased concentrations of NO2- and NO3- in the bronchoalveolar lavage fluid, and the PaO2, lung edema, and lung permeability were improved significantly. CONCLUSION PLA2 induces AMs to release NO, which contributes to lung injury in acute pancreatitis. This lung injury was prevented by the administration of the PLA2 inhibitor quinacrine.
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Affiliation(s)
- Y Tsukahara
- Department of Surgery 1, Kyushu University, Faculty of Medicine, Fukuoka, Japan
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