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Kmiec Z, Kieżun J, Krazinski BE, Kwiatkowski P, Godlewski J. The role of galanin in the progression and prognosis of colorectal cancer: the unfinished story. Eur J Histochem 2024; 68:3990. [PMID: 38568200 PMCID: PMC11017717 DOI: 10.4081/ejh.2024.3990] [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: 02/14/2024] [Accepted: 02/27/2024] [Indexed: 04/05/2024] Open
Abstract
The paper presents a summary of immunohistochemical (IHC) and biochemical investigations on the presence of galanin (Gal), one of the neuropeptides abundant in the enteric nervous systems, and three types of its receptors (GalR1-3) in colorectal cancer (CRC) tissue and non-involved colon wall and their associations with clinical-pathological data of the CRC patients. We were the first to morphologically demonstrate the presence of endogenous Gal in CRC sections and measure its content in homogenates of tumor tissue and dissected compartments of unchanged colon wall. The prominent atrophy of myenteric plexuses displaying Gal immunoreactivity (Gal-Ir) located close to the tumor invasion was found to be accompanied by higher Gal content in the tumor-adjacent muscularis externa than in tumor-distant tissue. In further studies for the first time, we demonstrated by the IHC technique the presence of the GalR1-3 receptors in the CRC tumors and the colon mucosa and found that higher GalR3-Ir in the tumor tissue correlated with longer overall survival of CRC patients. Furthermore, we discovered that lower GalR1 expression in submucosal plexuses located near the tumor correlated with a better prognosis in patients with CRC. These findings suggest that GalR1 could be considered as a novel therapeutic target in CRC. In conclusion, our morphological investigations provided novel data documenting the involvement of Gal and its receptors in the progression of CRC and showed the usefulness of the IHC technique for the prognosis of CRC patients.
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Affiliation(s)
- Zbigniew Kmiec
- Department of Histology, Medical University of Gdansk; Department of Human Histology and Embryology, School of Medicine, University of Warmia and Mazury in Olsztyn.
| | - Jacek Kieżun
- Department of Human Histology and Embryology, School of Medicine, University of Warmia and Mazury in Olsztyn.
| | - Bartlomiej E Krazinski
- Department of Human Histology and Embryology, School of Medicine, University of Warmia and Mazury in Olsztyn.
| | - Przemyslaw Kwiatkowski
- Department of Hematology with Bone Marrow Transplantation Unit, Clinical Hospital of the Ministry of Internal Affairs and Administration with the Warmia-Mazury Oncology Centre in Olsztyn.
| | - Janusz Godlewski
- Department of Human Histology and Embryology, School of Medicine, University of Warmia and Mazury in Olsztyn.
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Huber S, Fitzner T, Feichtinger RG, Hochmann S, Kraus T, Sotlar K, Kofler B, Varga M. Galanin System in the Human Bile Duct and Perihilar Cholangiocarcinoma. Cells 2023; 12:1678. [PMID: 37443714 PMCID: PMC10340323 DOI: 10.3390/cells12131678] [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: 04/21/2023] [Revised: 06/02/2023] [Accepted: 06/06/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND Perihilar cholangiocarcinoma (pCCA) is characterised by poor outcomes. Early diagnosis is essential for patient survival. The peptide galanin (GAL) and its receptors GAL1-3 are expressed in various tumours. Detailed characterisation of the GAL system in pCCA is lacking. Our study sought to characterise GAL and GAL1-3 receptor (GAL1-3-R) expression in the healthy human bile duct, in cholestasis and pCCA. METHODS Immunohistochemical staining was performed in healthy controls (n = 5) and in the peritumoural tissues (with and without cholestasis) (n = 20) and tumour tissues of pCCA patients (n = 33) using validated antibodies. The score values of GAL and GAL1-3-R expression were calculated and statistically evaluated. RESULTS GAL and GAL1-R were expressed in various bile duct cell types. GAL2-R was only slightly but still expressed in almost all the examined tissues, and GAL3-R specifically in cholangiocytes and capillaries. In a small pCCA patient cohort (n = 18), high GAL expression correlated with good survival, whereas high GAL3-R correlated with poor survival. CONCLUSIONS Our in-depth characterisation of the GAL system in the healthy human biliary duct and pCCA in a small patient cohort revealed that GAL and GAL3-R expression in tumour cells of pCCA patients could potentially represent suitable biomarkers for survival.
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Affiliation(s)
- Sara Huber
- Research Program for Receptor Biochemistry and Tumor Metabolism, Department of Pediatrics, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria; (S.H.); (T.F.)
| | - Theresia Fitzner
- Research Program for Receptor Biochemistry and Tumor Metabolism, Department of Pediatrics, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria; (S.H.); (T.F.)
| | - René G. Feichtinger
- Department of Pediatrics, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria;
| | - Sarah Hochmann
- Cell Therapy Institute, Spinal Cord Injury and Tissue Regeneration Center Salzburg (SCI-TReCS), Paracelsus Medical University, 5020 Salzburg, Austria;
| | - Theo Kraus
- Department of Pathology, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria; (T.K.); (K.S.)
| | - Karl Sotlar
- Department of Pathology, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria; (T.K.); (K.S.)
| | - Barbara Kofler
- Research Program for Receptor Biochemistry and Tumor Metabolism, Department of Pediatrics, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria; (S.H.); (T.F.)
| | - Martin Varga
- Department of Surgery, University Hospital of the Paracelsus Medical University, 5020 Salzburg, Austria;
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Luqman A. The orchestra of human bacteriome by hormones. Microb Pathog 2023; 180:106125. [PMID: 37119938 DOI: 10.1016/j.micpath.2023.106125] [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: 03/13/2023] [Revised: 04/07/2023] [Accepted: 04/24/2023] [Indexed: 05/01/2023]
Abstract
Human microbiome interact reciprocally with the host. Recent findings showed the capability of microorganisms to response towards host signaling molecules, such as hormones. Studies confirmed the complex response of bacteria in response to hormones exposure. These hormones impact many aspects on bacteria, such as the growth, metabolism, and virulence. The effects of each hormone seem to be species-specific. The most studied hormones are cathecolamines also known as stress hormones that consists of epinephrine, norepinephrine and dopamine. These hormones affect the growth of bacteria either inhibit or enhance by acting like a siderophore. Epinephrine and norepinephrine have also been reported to activate QseBC, a quorum sensing in Gram-negative bacteria and eventually enhances the virulence of pathogens. Other hormones were also reported to play a role in shaping human microbiome composition and affect their behavior. Considering the complex response of bacteria on hormones, it highlights the necessity to take the impact of hormones on bacteria into account in studying human health in relation to human microbiome.
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Affiliation(s)
- Arif Luqman
- Biology Department, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia.
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Michalickova D, Kramarikova I, Ozturk HK, Kucera T, Vacik T, Hrncir T, Kutinova Canova N, Sima M, Slanar O. Detection of galanin receptors in the spinal cord in experimental autoimmune encephalomyelitis. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2023; 167:36-42. [PMID: 35147137 DOI: 10.5507/bp.2022.005] [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: 07/01/2021] [Accepted: 01/28/2022] [Indexed: 11/23/2022] Open
Abstract
AIMS The neuropeptide galanin is a widely distributed neurotransmitter/neuromodulator that regulates a variety of physiological processes and also participates in the regulation of stress responses. The aims of the present study were to investigate the expression of galanin receptors (GalR1, GalR2, GalR3) in the spinal cords in a murine model of multiple sclerosis, experimental autoimmune encephalomyelitis (EAE) using qPCR analysis and to determine GalR1 cellular localization (oligodendrocytes, microglia, astrocytes, ependymal cells, and endothelial cells in the capillaries) by immunohistochemistry. METHODS Twelve samples from the EAE group and 14 samples from the control group were analyzed. Spinal cords samples were obtained at the peak of the EAE disease. RESULTS The GalR1 mRNA level was significantly decreased in the EAE mice compared with the controls (P=0.016), whereas the mRNA levels of GalR2 and GalR3 were not significantly different for the EAE and the control mice. No significant correlations were found between the severity of the EAE disease and the mRNA levels of GalR1, GalR2 and GalR3. Immunochemical detection of the GalR1 revealed its expression in the ependymal and endothelial cells. Additionally, a weak GalR1 immunoreactivity was occasionally detected in the oligodendrocytes. CONCLUSION This study provides additional evidence of galanin involvement in EAE pathophysiology, but this has to be further investigated.
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Affiliation(s)
- Danica Michalickova
- Institute of Pharmacology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Czech Republic
| | - Ivana Kramarikova
- Institute of Pharmacology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Czech Republic
| | - Hatice Kubra Ozturk
- Institute of Pharmacology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Czech Republic
| | - Tomas Kucera
- Institute of Histology and Embryology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Czech Republic
| | - Tomas Vacik
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Czech Republic
| | - Tomas Hrncir
- Institute of Microbiology, Czech Academy of Sciences, Novy Hradek, Czech Republic
| | - Nikolina Kutinova Canova
- Institute of Pharmacology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Czech Republic
| | - Martin Sima
- Institute of Pharmacology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Czech Republic
| | - Ondrej Slanar
- Institute of Pharmacology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Czech Republic
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Kiezun J, Kiezun M, Krazinski BE, Paukszto L, Koprowicz-Wielguszewska A, Kmiec Z, Godlewski J. Galanin Receptors (GALR1, GALR2, and GALR3) Immunoexpression in Enteric Plexuses of Colorectal Cancer Patients: Correlation with the Clinico-Pathological Parameters. Biomolecules 2022; 12:biom12121769. [PMID: 36551197 PMCID: PMC9775555 DOI: 10.3390/biom12121769] [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: 11/15/2022] [Revised: 11/25/2022] [Accepted: 11/25/2022] [Indexed: 11/29/2022] Open
Abstract
Galanin (GAL) is an important neurotransmitter released by the enteric nervous system (ENS) neurons located in the muscularis externa and submucosa enteric plexuses that acts by binding to GAL receptors 1, 2 and 3 (GALR1, 2 and 3). In our previous studies, the GAL immunoexpression was compared in colorectal cancer (CRC) tissue and the adjacent parts of the large intestine wall including myenteric and submucosal plexuses. Recently we have also found that expression levels of GALR1 and GALR3 proteins are elevated in CRC tissue as compared with their expression in epithelial cells of unchanged mucosa. Moreover, higher GALR3 immunoreactivity in CRC cells correlated with better prognosis of CRC patients. To understand the distribution of GALRs in enteric plexuses distal and close to CRC invasion, in the present study we decided to evaluate GALRs expression within the myenteric and submucosal plexuses located proximally and distally to the cancer invasion and correlated the GALRs expression levels with the clinico-pathological data of CRC patients. The immunohistochemical and immunofluorescent methods showed only slightly decreased immunoexpression of GALR1 and GALR3 in myenteric plexuses close to cancer but did not reveal any correlation in the immunoexpression of all three GAL receptors in myenteric plexuses and tumour progression. No significant changes were found between the expression levels of GALRs in submucosal plexuses distal and close to the tumour. However, elevated GALR1 expression in submucosal plexuses in vicinity of CRC correlated with poor prognosis, higher tumour grading and shorter overall survival. When myenteric plexuses undergo morphological and functional alterations characteristic for atrophy, GALRs maintain or only slightly decrease their expression status. In contrast, the correlation between high expression of GALR1 in the submucosal plexuses and overall survival of CRC patients suggest that GAL and GALRs can act as a components of local neuro-paracrine pro-proliferative pathways accelerating the invasion and metastasis of cancer cell. The obtained results suggest an important role of GALR1 in submucosal plexuses function during the progression of CRC and imply that GALR1 expression in submucosal plexuses of ENS could be an important predictive factor for CRC progression.
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Affiliation(s)
- Jacek Kiezun
- Department of Human Histology and Embryology, School of Medicine, University of Warmia and Mazury in Olsztyn, Warszawska Street 30, 10-082 Olsztyn, Poland
- Correspondence: ; Tel.: +48-89-524-53-06
| | - Marta Kiezun
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego Street 1a, 10-719 Olsztyn, Poland
| | - Bartlomiej Emil Krazinski
- Department of Human Histology and Embryology, School of Medicine, University of Warmia and Mazury in Olsztyn, Warszawska Street 30, 10-082 Olsztyn, Poland
| | - Lukasz Paukszto
- Department of Botany and Nature Protection, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Plac Łódzki 1, 10-719 Olsztyn, Poland
| | - Anna Koprowicz-Wielguszewska
- Department of Human Histology and Embryology, School of Medicine, University of Warmia and Mazury in Olsztyn, Warszawska Street 30, 10-082 Olsztyn, Poland
| | - Zbigniew Kmiec
- Department of Histology, Faculty of Medicine, Medical University of Gdansk, Sklodowskiej-Curie Street 3a, 80-211 Gdansk, Poland
| | - Janusz Godlewski
- Department of Human Histology and Embryology, School of Medicine, University of Warmia and Mazury in Olsztyn, Warszawska Street 30, 10-082 Olsztyn, Poland
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Yang Q, Tang J, Ding N, Chao K, Li M, Huang Z, Guo H, Chen J, Zhi M, Hu P, Gao X. Twelve-week peptide-based formula therapy may be effective in inducing remission of active Crohn disease among women who are pregnant or preparing for pregnancy. Nutr Clin Pract 2022; 37:366-376. [PMID: 34245474 DOI: 10.1002/ncp.10733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Conventional treatment for Crohn disease (CD) in pregnancy includes mesalamine, thiopurine, and anti-tumor necrosis factor (TNF)-α agents. However, women may abstain because of complications, nonresponse, or potential adverse outcomes. Peptide-based formula therapy, through oral or nasogastric feeding without other food intake, is an effective and safe therapy for active CD. Herein, We confirmed the effectiveness and safety of peptide-based formula therapy for active CD in pregnant women or those preparing for pregnancy. METHOD Outcomes of peptide-based formula therapy to induce CD remission during pregnancy preparation and the conception period were evaluated retrospectively among 14 women. Efficacy was evaluated as the change in serum indices and inflammatory markers after 12-week treatment. Pregnancy outcomes were compared between 14 women treated with nutrition therapy and eight women using conventional CD drugs. RESULTS After 12 weeks, 85.7% (12 of 14) of patients treated with peptide-based formula achieved remission with a significant decrease in the CD activity index (P < .001) and high-sensitivity C-reactive protein level (P = .004). There were no effects of peptide-based formula therapy on pregnancy outcomes compared with conventional CD treatment (P > .05). Among the 12 patients who achieved CD remission with exclusive peptide-based formula therapy, 10 selected to continue total or partial peptide-based formula treatment to maintain CD remission throughout pregnancy. CONCLUSION Peptide-based formula therapy, without other food intake, may provide a safe and effective alternative to conventional CD drugs to induce disease remission among women during conception and pregnancy.
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Affiliation(s)
- Qingfan Yang
- Department of Gastroenterology, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Jian Tang
- Department of Gastroenterology, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Ni Ding
- Department of Gastroenterology, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Kang Chao
- Department of Gastroenterology, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Miao Li
- Department of Gastroenterology, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Zicheng Huang
- Department of Gastroenterology, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Huili Guo
- Department of Gastroenterology, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Junrong Chen
- Department of Gastroenterology, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Min Zhi
- Department of Gastroenterology, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Pinjin Hu
- Department of Gastroenterology, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
| | - Xiang Gao
- Department of Gastroenterology, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China
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Bottaccioli AG, Bologna M, Bottaccioli F. Psychic Life-Biological Molecule Bidirectional Relationship: Pathways, Mechanisms, and Consequences for Medical and Psychological Sciences-A Narrative Review. Int J Mol Sci 2022; 23:3932. [PMID: 35409300 PMCID: PMC8999976 DOI: 10.3390/ijms23073932] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/29/2022] [Accepted: 03/29/2022] [Indexed: 02/01/2023] Open
Abstract
Today, it is possible to investigate the biological paths and mechanisms that link mental life to biological life. Emotions, feelings, desires, and cognitions influence biological systems. In recent decades, psychoneuroendocrinoimmunology research has highlighted the routes linking the psyche-brain-immune systems. Recently, epigenetics research has shown the molecular mechanisms by which stress and mental states modulate the information contained in the genome. This research shapes a new paradigm considering the human being as a whole, integrating biology and psychology. This will allow us to progress towards personalized precision medicine, deeply changing medical and psychological sciences and clinical practice. In this paper, we recognize leading research on both bidirectional relations between the psyche-brain-immunity and molecular consequences of psychological and mental states.
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Affiliation(s)
- Anna Giulia Bottaccioli
- Department of Psychology, University “Vita e Salute”, San Raffaele, 20132 Milan, Italy
- Italian Society of Psycho-Neuro-Endocrine-Immunology (SIPNEI), 00195 Rome, Italy; (M.B.); (F.B.)
| | - Mauro Bologna
- Italian Society of Psycho-Neuro-Endocrine-Immunology (SIPNEI), 00195 Rome, Italy; (M.B.); (F.B.)
- Department of Medicine, Public Health, Life and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy
| | - Francesco Bottaccioli
- Italian Society of Psycho-Neuro-Endocrine-Immunology (SIPNEI), 00195 Rome, Italy; (M.B.); (F.B.)
- Department of Medicine, Public Health, Life and Environmental Sciences, University of L’Aquila, 67100 L’Aquila, Italy
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Kiezun J, Godlewski J, Krazinski BE, Kozielec Z, Kmiec Z. Galanin Receptors (GalR1, GalR2, and GalR3) Expression in Colorectal Cancer Tissue and Correlations to the Overall Survival and Poor Prognosis of CRC Patients. Int J Mol Sci 2022; 23:ijms23073735. [PMID: 35409094 PMCID: PMC8998502 DOI: 10.3390/ijms23073735] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 02/23/2022] [Accepted: 03/25/2022] [Indexed: 01/11/2023] Open
Abstract
Colorectal cancer (CRC) is the second most common cause of cancer in women and the third in men. The postoperative pathomorphological evaluation of patients with CRC is extremely important for future therapeutic decisions. Although our previous studies demonstrated high galanin (GAL) presence within tumor tissue and an elevated concentration of GAL in the serum of CRC patients, to date, there is a lack of data regarding GAL receptor (GalR) protein expression in CRC cells. Therefore, the aim of this study was to evaluate the presence of all three types of GalRs (GalR1, GalR2 and GalR3) within epithelial cells of the human colon and CRC tissue with the use of the immunohistochemical method and to correlate the results with the clinical-pathological data. We found stronger immunoreactivity of GalR1 and GalR3 in CRC cells compared to epithelial cells of the unchanged mucosa of the large intestine. No differences in the GalR2 protein immunoreactivity between the studied tissues were noted. We also found that the increased immunoexpression of the GalR3 in CRC tissue correlated with the better prognosis and longer survival (p < 0.0079) of CRC patients (n = 55). The obtained results suggest that GalR3 may play the role of a prognostic factor for CRC patients. Based on data from the TCGA-COAD project deposited in the GDC Data Portal, we also found that GalR mRNA in cancer samples and the adjacent normal tissue did not correlate with immunoexpression of the GalR proteins in CRC cells and epithelial cells of the unchanged mucosa.
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MESH Headings
- Colorectal Neoplasms/genetics
- Female
- Humans
- Male
- RNA, Messenger/metabolism
- Receptor, Galanin, Type 1/metabolism
- Receptor, Galanin, Type 2/genetics
- Receptor, Galanin, Type 2/metabolism
- Receptor, Galanin, Type 3/metabolism
- Receptors, Galanin/genetics
- Receptors, Galanin/metabolism
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Affiliation(s)
- Jacek Kiezun
- Department of Human Histology and Embryology, Faculty of Medical Sciences, University of Warmia and Mazury in Olsztyn, 10-082 Olsztyn, Poland; (J.G.); (B.E.K.)
- Correspondence: ; Tel.: +48-89-524-53-06
| | - Janusz Godlewski
- Department of Human Histology and Embryology, Faculty of Medical Sciences, University of Warmia and Mazury in Olsztyn, 10-082 Olsztyn, Poland; (J.G.); (B.E.K.)
| | - Bartlomiej E. Krazinski
- Department of Human Histology and Embryology, Faculty of Medical Sciences, University of Warmia and Mazury in Olsztyn, 10-082 Olsztyn, Poland; (J.G.); (B.E.K.)
| | - Zygmunt Kozielec
- Department of Pathomorphology, Faculty of Medical Sciences, University of Warmia and Mazury in Olsztyn, 10-561 Olsztyn, Poland;
| | - Zbigniew Kmiec
- Department of Histology, Faculty of Medicine, Medical University of Gdansk, 80-211 Gdansk, Poland;
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Hwang DDJ, Lee SJ, Kim JH, Lee SM. The Role of Neuropeptides in Pathogenesis of Dry Dye. J Clin Med 2021; 10:4248. [PMID: 34575359 PMCID: PMC8471988 DOI: 10.3390/jcm10184248] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 09/07/2021] [Accepted: 09/14/2021] [Indexed: 12/29/2022] Open
Abstract
Neuropeptides are known as important mediators between the nervous and immune systems. Recently, the role of the corneal nerve in the pathogenesis of various ocular surface diseases, including dry eye disease, has been highlighted. Neuropeptides are thought to be important factors in the pathogenesis of dry eye disease, as suggested by the well-known role between the nervous and immune systems, and several recently published studies have elucidated the previously unknown pathogenic mechanisms involved in the role of the neuropeptides secreted from the corneal nerves in dry eye disease. Here, we reviewed the emerging concept of neurogenic inflammation as one of the pathogenic mechanisms of dry eye disease, the recent results of related studies, and the direction of future research.
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Affiliation(s)
- Daniel Duck-Jin Hwang
- Department of Ophthalmology, HanGil Eye Hospital, Incheon 21388, Korea;
- Department of Ophthalmology, College of Medicine, Catholic Kwandong University, Incheon 21388, Korea
| | - Seok-Jae Lee
- Fight against Angiogenesis-Related Blindness (FARB) Laboratory, Clinical Research Institute, Seoul National University Hospital, Seoul 03080, Korea; (S.-J.L.); (J.-H.K.)
- Department of Biomedical Sciences, College of Medicine, Seoul National University, Seoul 03080, Korea
| | - Jeong-Hun Kim
- Fight against Angiogenesis-Related Blindness (FARB) Laboratory, Clinical Research Institute, Seoul National University Hospital, Seoul 03080, Korea; (S.-J.L.); (J.-H.K.)
- Department of Biomedical Sciences, College of Medicine, Seoul National University, Seoul 03080, Korea
- Department of Ophthalmology, College of Medicine, Seoul National University, Seoul 03080, Korea
- Advanced Biomedical Research Center, Korea Research Institute of Bioscience & Biotechnology, Daejeon 34141, Korea
| | - Sang-Mok Lee
- Department of Ophthalmology, HanGil Eye Hospital, Incheon 21388, Korea;
- Department of Ophthalmology, College of Medicine, Catholic Kwandong University, Incheon 21388, Korea
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