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Wang LM, Zhang WW, Qiu YY, Wang F. Ferroptosis regulating lipid peroxidation metabolism in the occurrence and development of gastric cancer. World J Gastrointest Oncol 2024; 16:2781-2792. [DOI: 10.4251/wjgo.v16.i6.2781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/06/2024] [Accepted: 04/10/2024] [Indexed: 06/13/2024] Open
Abstract
BACKGROUND Gastric cancer is one of the most common malignant tumors in the world, and its occurrence and development involve complex biological processes. Iron death, as a new cell death mode, has attracted wide attention in recent years. However, the regulatory mechanism of iron death in gastric cancer and its effect on lipid peroxidation metabolism remain unclear.
AIM To explore the role of iron death in the development of gastric cancer, reveal its relationship with lipid peroxidation, and provide a new theoretical basis for revealing the molecular mechanism of the occurrence and development of gastric cancer.
METHODS The process of iron death in gastric cancer cells was simulated by cell culture model, and the occurrence of iron death was detected by fluorescence microscopy and flow cytometry. The changes of gene expression related to iron death and lipid peroxidation metabolism were analyzed by high-throughput sequencing technology. In addition, a mouse model of gastric cancer was established, and the role of iron death in vivo was studied by histology and immunohistochemistry, and the level of lipid peroxidation was detected. These methods comprehensively and deeply reveal the regulatory mechanism of iron death on lipid peroxidation metabolism in the occurrence and development of gastric cancer.
RESULTS Iron death was significantly activated in gastric cancer cells, and at the same time, associated lipid peroxidation levels increased significantly. Through high-throughput sequencing analysis, it was found that iron death regulated the expression of several genes related to lipid metabolism. In vivo experiments demonstrated that increased iron death in gastric cancer mice was accompanied by a significant increase in lipid peroxidation.
CONCLUSION This study confirmed the important role of iron death in regulating lipid peroxidation metabolism in the occurrence and development of gastric cancer. The activation of iron death significantly increased lipid peroxidation levels, revealing its regulatory mechanism inside the cell.
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Affiliation(s)
- Lan-Mei Wang
- Department of Clinical Laboratory, Anqiu People's Hospital, Weifang 262123, Shandong Province, China
| | - Wei-Wei Zhang
- Department of Gastroenterology, Feicheng People's Hospital, Tai’an 271600, Shandong Province, China
| | - Ying-Yang Qiu
- Yong Loo Lin School of Medicine, National University of Singapore, 119077, Singapore
| | - Fang Wang
- Department of Gastroenterology, Central Hospital Affiliated to Shandong First Medical University, Jinan 250013, Shandong Province, China
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Chang C, Chen YL, Wang YW, Chen HW, Hsu CW, Lin KC, Ou YC, Liu T, Chen WL, Chu CA, Ho CL, Lee CT, Chow NH. Aberrant trophoblastic differentiation in human cancer: An emerging novel therapeutic target (Review). Oncol Rep 2024; 51:43. [PMID: 38240107 PMCID: PMC10823338 DOI: 10.3892/or.2024.8701] [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: 01/27/2023] [Accepted: 06/15/2023] [Indexed: 01/23/2024] Open
Abstract
Various types of human cancer may develop aberrant trophoblastic differentiation, including histological changes and altered expression of β‑human chorionic gonadotropin (β‑hCG). Aberrant trophoblastic differentiation in epithelial cancer is usually associated with poor differentiation, tumor metastasis, unfavorable prognosis and treatment resistance. Since β‑hCG‑targeting vaccines have failed in an early phase II trial, it is crucial to obtain a better understanding of the molecular pathogenesis of trophoblastic differentiation in human cancer. The present review summarizes the clinical and translational research on this topic with the aim of accelerating the development of an effective targeted therapy. Ectopic expression of β‑hCG promotes proliferation, migration, invasion, vasculogenesis and epithelial‑mesenchymal transition (EMT) in vitro, and enhances metastatic and tumorigenic capabilities in vivo. Signaling cascades modulated by β‑hCG include the TGF‑β receptor pathway, EMT‑related pathways, the c‑MET receptor tyrosine kinase and mitogen‑activated protein kinase/ERK pathways, and the SMAD2/4 pathway. Taken together, these findings indicated that TGF‑β receptors, c‑MET and ERK1/2 are potential therapeutic targets. Nevertheless, further investigation on the molecular basis of aberrant trophoblastic differentiation is mandatory to improve the design of precision therapy for this aggressive type of human cancer.
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Affiliation(s)
- Chen Chang
- Department of Pathology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan, R.O.C
- Department of Pathology, National Cheng Kung University Hospital, Tainan 704, Taiwan, R.O.C
| | - Yi-Lin Chen
- Department of Pathology, National Cheng Kung University Hospital, Tainan 704, Taiwan, R.O.C
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan, R.O.C
- Molecular Medicine Core Laboratory, Research Center of Clinical Medicine, National Cheng Kung University, Tainan 704, Taiwan, R.O.C
- Molecular Diagnostics Laboratory, Department of Pathology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan, R.O.C
| | - Yi-Wen Wang
- Department of Dental Technology, Shu-Zen Junior College of Medicine and Management, Kaohsiung 821, Taiwan, R.O.C
| | - Hui-Wen Chen
- Department of Pathology, National Cheng Kung University Hospital, Tainan 704, Taiwan, R.O.C
| | - Che-Wei Hsu
- Department of Pathology, National Cheng Kung University Hospital, Tainan 704, Taiwan, R.O.C
| | - Kun-Che Lin
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan, R.O.C
| | - Yin-Chien Ou
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan, R.O.C
| | - Tsunglin Liu
- The Institute of Bioinformatics and Biosignal Transduction, National Cheng Kung University, Tainan 701, Taiwan, R.O.C
- Bioinformatics Core Laboratory, Research Center of Clinical Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan, R.O.C
| | - Wan-Li Chen
- Department of Pathology, National Cheng Kung University Hospital, Tainan 704, Taiwan, R.O.C
- Molecular Diagnostics Laboratory, Department of Pathology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan, R.O.C
| | - Chien-An Chu
- Department of Pathology, National Cheng Kung University Hospital, Tainan 704, Taiwan, R.O.C
| | - Chung-Liang Ho
- Department of Pathology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan, R.O.C
- Department of Pathology, National Cheng Kung University Hospital, Tainan 704, Taiwan, R.O.C
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan, R.O.C
- Molecular Medicine Core Laboratory, Research Center of Clinical Medicine, National Cheng Kung University, Tainan 704, Taiwan, R.O.C
- Molecular Diagnostics Laboratory, Department of Pathology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan, R.O.C
| | - Chung-Ta Lee
- Department of Pathology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan, R.O.C
| | - Nan-Haw Chow
- Department of Pathology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan, R.O.C
- Department of Pathology, National Cheng Kung University Hospital, Tainan 704, Taiwan, R.O.C
- Molecular Medicine Core Laboratory, Research Center of Clinical Medicine, National Cheng Kung University, Tainan 704, Taiwan, R.O.C
- Molecular Diagnostics Laboratory, Department of Pathology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan, R.O.C
- The Institute of Molecular Medicine, National Cheng Kung University, Tainan 701, Taiwan, R.O.C
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Falk Z, Bou Nasif M, Fallouh N. Ophthalmoplegia in a Her2+ and β-hCG+ Patient With Leptomeningeal Carcinomatosis Secondary to Gastric Adenocarcinoma. Cureus 2022; 14:e26658. [PMID: 35815304 PMCID: PMC9266915 DOI: 10.7759/cureus.26658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/08/2022] [Indexed: 11/30/2022] Open
Abstract
Leptomeningeal carcinomatosis (LMC) is an uncommon and devastating late complication of metastatic malignancy that carries a poor prognosis, typically faring worse when secondary to solid tumors. Diagnosis of LMC can be challenging, especially if the underlying cancer is undiagnosed, as presenting symptoms can be nonspecific or involve focal deficits such as cranial nerve palsies. Typically, LMC can be recognized due to new central neurological findings with concomitant peripheral nerve involvement, but there has not been a case of LMC with isolated peripheral nerve findings to our knowledge. In this report, we present a case of LMC secondary to metastatic gastric adenocarcinoma in a patient whose only manifestation was cranial nerve palsies, and whose cancer was also found to be Her2+ and β-hCG positive, two markers not widely recognized in gastric cancer.
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Xu L, Chen X, Jiang H, Xu J, Wang L, Sun Y. NDUFC1 Is Upregulated in Gastric Cancer and Regulates Cell Proliferation, Apoptosis, Cycle and Migration. Front Oncol 2021; 11:709044. [PMID: 34966665 PMCID: PMC8710466 DOI: 10.3389/fonc.2021.709044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 11/04/2021] [Indexed: 01/13/2023] Open
Abstract
Gastric cancer is one of the most common primary tumors of the digestive system. NADH: ubiquinone oxidoreductase subunit C1 (NDUFC1), which is an accessory subunit of the NADH dehydrogenase (complex I), is responsible for the transportation of electrons from NADH to the respiratory chain essential for the oxidative phosphorylation. However, little is known about the roles of NDUFC1 in carcinogenesis. In this study, NDUFC1 protein level in NSCLC tissues was tested by immunohistochemistry (IHC) staining. NDUFC1 mRNA level in gastric cancer cell lines was determined by qRT-PCR. MGC-803 and SGC-7901 cells were transfected with shNDUFC1 lentivirus designed to silence NDUFC1. MTT assay, CCK8 assay, wound healing assay and transwell migration assay were conducted. Cell cycle and apoptosis were detected by flow cytometry. In vivo experiments were performed using nude mice. The results indicated that overexpressed NDUFC1 in gastric cancer was related to more serious tumor infiltrates, a higher risk of lymphatic metastasis, a higher proportion of positive lymph nodes, and a more advanced tumor stage. Compared with shCtrl groups, MGC-803 and SGC-7901 of shNDUFC1 groups had lower abilities of proliferation and migration, higher levels of apoptosis. NDUFC1 knockdown also inhibited SGC-7901 cell growth in vivo and suppressed Ki67 expression in xenograft tumors. More importantly, we found that NDUFC1 downregulation made the levels of P-Akt, P-mTOR, CCND1, CDK6, PIK3CA, Bcl-2, Survivin, and XIAP decreased, and that PI3K/AKT signaling pathway agonist SC79 rescued the inhibitory effects on cell proliferation and migration, reversed the promoted effects on cell apoptosis caused by NDUFC1 knockdown. More importantly, compared with NDUFC1 knockdown group, the expression of P-Akt, Bcl-2, Survivin, and XIAP was raised in shNDUFC1 + SC79 group. Thus, our suspicion was that NDUFC1 exacerbates NSCLC progression via PI3K/Akt pathway. Taken together, our study indicated that targeting NDUFC1 could open innovative perspectives for new multi-targeting approaches in the treatment of gastric cancer.
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Affiliation(s)
- Liang Xu
- Department of Organ Transplantation, The Second Affiliated Hospital of Hainan Medical University, Hainan, China
| | - Xiuxiu Chen
- Surgery of Breast Nail, The Second Affiliated Hospital of Hainan Medical University, Hainan, China
| | - Hongtao Jiang
- Department of Organ Transplantation, The Second Affiliated Hospital of Hainan Medical University, Hainan, China
| | - Jian Xu
- Department of Organ Transplantation, The Second Affiliated Hospital of Hainan Medical University, Hainan, China
| | - Lixia Wang
- Department of Organ Transplantation, The Second Affiliated Hospital of Hainan Medical University, Hainan, China
| | - Yuemin Sun
- Department of Pancreatic & Gastric Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Liu J, Tian Z, Liu T, Wen D, Ma Z, Liu Y, Zhu J. CHSY1 is upregulated and acts as tumor promotor in gastric cancer through regulating cell proliferation, apoptosis, and migration. Cell Cycle 2021; 20:1861-1874. [PMID: 34412565 DOI: 10.1080/15384101.2021.1963553] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Gastric cancer is one of the most frequently diagnosed malignant tumors, with rapid progression and poor prognosis. The role of chondroitin sulfate synthase 1 (CHSY1) in the development and progression of gastric cancer was explored and clarified in this study. The immunohistochemistry analysis of clinical tissue samples as well as data mining of public database showed that CHSY1 was significantly upregulated in gastric cancer and associated with more advanced tumor stage and poorer prognosis. In vitro loss-of-function experiments demonstrated the inhibited cell proliferation, colony formation, cell migration, as well as the promoted cell apoptosis by CHSY1 knockdown. Moreover, recovery of CHSY1 expression could attenuate the regulatory effects induced by CHSY1 knockdown. Correspondingly, gastric cancer cells with CHSY1 knockdown showed reduced tumorigenicity and slower tumor growth in vivo. In conclusion, this study identified CHSY1 as a tumor promotor in gastric cancer, which may be utilized as a novel indicator of patients' prognosis and therapeutic target for developing more effective drug for GC treatment.
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Affiliation(s)
- Jingjing Liu
- Department of Gastrointestinal Surgery, The Second Hospital of Jilin University, Changchun, Jilin, China.,Department of Surgical Oncology and General Surgery, First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Zhenwei Tian
- Intensive Care Unit, the Second Hospital of Jilin University, Changchun, Jilin, China
| | - Tianzhou Liu
- Department of Gastrointestinal Surgery, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Dacheng Wen
- Department of Gastrointestinal Surgery, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Zhiming Ma
- Department of Gastrointestinal Surgery, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Yuanda Liu
- Department of Gastrointestinal Surgery, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Jiaming Zhu
- Department of Gastrointestinal Surgery, The Second Hospital of Jilin University, Changchun, Jilin, China.,Department of Surgical Oncology and General Surgery, First Hospital of China Medical University, Shenyang, Liaoning, China
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Mondaca JM, Uzair ID, Castro Guijarro AC, Flamini MI, Sanchez AM. Molecular Basis of LH Action on Breast Cancer Cell Migration and Invasion via Kinase and Scaffold Proteins. Front Cell Dev Biol 2021; 8:630147. [PMID: 33614634 PMCID: PMC7893099 DOI: 10.3389/fcell.2020.630147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 12/24/2020] [Indexed: 11/13/2022] Open
Abstract
Breast cancer (BC) is a major public health problem affecting women worldwide. Approximately 80% of diagnosed cases are hormone-dependent breast cancers. These hormones are known to stimulate tumor development and progression. In this setting, tentative evidence suggests that luteinizing hormone (LH) may also play a role in tumors. In BC cells that express functional LH receptors (LHR), this hormone regulates cell migration and invasion by controlling several kinases that activate actin cytoskeletal proteins. In this article, we show that LH induces phosphorylation of paxillin and its translocation toward the plasmatic membrane, where focal adhesion complexes are assembled. This process is triggered via a rapid extra-gonadal LHR signaling to Src/FAK/paxillin, which results in the phosphorylation/activation of the nucleation promoter factors cortactin and N-WASP. As a consequence, Arp2/3 complexes induce actin polymerization, essential to promote cell adhesion, migration, and invasion, thus enhancing metastatic spread of tumoral cells. Our findings provide relevant information about how gonadotrophins exert their action in BC. This information helps us understand the extragonadal effects of LH on BC metastasis. It may provide new perspectives for therapeutic treatment, especially for women with high serum levels of gonadotrophins.
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Affiliation(s)
- Joselina Magali Mondaca
- Laboratorio de Transducción de Señales y Movimiento Celular, Instituto de Medicina y Biología Experimental de Cuyo (IMBECU), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Ivonne Denise Uzair
- Laboratorio de Transducción de Señales y Movimiento Celular, Instituto de Medicina y Biología Experimental de Cuyo (IMBECU), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Ana Carla Castro Guijarro
- Laboratorio de Biología Tumoral, Instituto de Medicina y Biología Experimental de Cuyo (IMBECU), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Marina Inés Flamini
- Laboratorio de Biología Tumoral, Instituto de Medicina y Biología Experimental de Cuyo (IMBECU), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Angel Matias Sanchez
- Laboratorio de Transducción de Señales y Movimiento Celular, Instituto de Medicina y Biología Experimental de Cuyo (IMBECU), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad Nacional de Cuyo, Mendoza, Argentina
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Human Chorionic Gonadotropin-Mediated Induction of Breast Cancer Cell Proliferation and Differentiation. Cells 2021; 10:cells10020264. [PMID: 33572731 PMCID: PMC7911704 DOI: 10.3390/cells10020264] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 01/21/2021] [Accepted: 01/26/2021] [Indexed: 02/07/2023] Open
Abstract
Human chorionic gonadotropin (hCG) is a hormone that specifically binds to luteinizing hormone receptor (LHR) and exerts several roles, including the support of pregnancy and fetal gonadal steroidogenesis. Since hCG is also expressed by some tumor types, like breast cancer, many efforts have been made to study its role in neoplesia, with some studies showing a cancer-supportive role and others showing a cancer-protective role. A critical examination of the literature highlighted that the in vitro effect of hCG has been tested in the presence of fetal serum, which contains other gonadotropins, in the culture medium. Thus, we hypothesized that the use of serum in the cell culture medium might influence the cell response to the hCG treatment due to the presence of other hormones. Thus, we analyzed the in vitro effect of highly purified hCG on cell proliferation and the activation of the down-stream signal transduction pathway in three breast cancer cell lines, particularly focusing on MCF7, cultured in serum-deprived conditions. Our data show that hCG increases cell proliferation and activates the down-stream target Akt, together with a decrease of the LHR mRNA expression level. Finally, we also tested the differentiation capacity of hCG on MCF7 cancer stem cells (CSCs) and show that it favors the proliferation and differentiation of these cells, thus suggesting that hCG also renders cells more able to colonize and invade the organs.
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Peng J, Lv S, Liu L, Feng S, Xing N. Lung neoplasm mimicking as ectopic pregnancy due to paraneoplastic secretion of human chorionic gonadotropin: a case report and literature review. Arch Gynecol Obstet 2021; 303:607-614. [PMID: 33394143 PMCID: PMC7960598 DOI: 10.1007/s00404-020-05927-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 11/26/2020] [Indexed: 10/29/2022]
Abstract
PURPOSE The present systematic review aimed to examine the relationship between lung neoplasm and human chorionic gonadotropin (HCG). Especially, women with lung neoplasm mimicking as ectopic pregnancy were explored. METHODS A rare case of lung neoplasm with high serum β-HCG, which was initially thought to be ectopic pregnancy, was reported. A literature search was performed of the US National Library of Medicine (MEDLINE), EMBASE, PubMed, and the Cochrane Database of Systematic Reviews using appropriate keywords and subject headings to February 2020. RESULTS Studies assessed lung neoplasm patients with positive HCG were included. Twenty studies, including 24 patients, were included. These cases illustrate the importance of considering the possibility of paraneoplastic secretion of β-HCG in patients who have a positive pregnancy test. This may prevent a delay in the diagnosis and treatment of malignancy in young women. Of the 24 cases, only 7 (29.17%) were managed surgically; others were managed conservatively or with chemotherapy or radiation. CONCLUSION The present systematic review shows the need to re-awaken awareness and high index of suspicion to lung neoplasm diagnosis in patients with positive pregnancy test.
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Affiliation(s)
- Jin Peng
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, Jinan, 250012, Shandong, People's Republic of China
| | - Shangge Lv
- Department of Obstetrics and Gynecology, Qilu Hospital, Shandong University, Jinan, 250012, Shandong, People's Republic of China.,School of Medicine, Institute of Diagnostics, Shandong University, Jinan, 250012, Shandong, People's Republic of China
| | - Lin Liu
- Department of Pathology, Qilu Hospital, Shandong University, Jinan, 250012, Shandong, People's Republic of China
| | - Shuai Feng
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, 250117, Shandong, People's Republic of China
| | - Naidong Xing
- Department of Urology, Qilu Hospital, Shandong University, Jinan, 250012, Shandong, People's Republic of China.
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Luteinizing Hormone Receptor Is Expressed in Testicular Germ Cell Tumors: Possible Implications for Tumor Growth and Prognosis. Cancers (Basel) 2020; 12:cancers12061358. [PMID: 32466562 PMCID: PMC7352821 DOI: 10.3390/cancers12061358] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/21/2020] [Accepted: 05/23/2020] [Indexed: 01/08/2023] Open
Abstract
Luteinizing hormone/choriogonadotropin receptor (LHCGR) regulates gonadal testosterone production and recent studies have suggested a growth-regulatory role in somatic cancers. Here, we established that LHCGR is expressed in a fraction of seminoma cells and germ cell neoplasia in situ (GCNIS), and the seminoma-derived cell line TCam2 released LHCGR into the medium. LH treatment induced proliferation of TCam2 cells in vitro, while hCG treatment induced a non-significant 51% increase in volume of tumors formed in a TCam2 xenograft model. A specific ELISA was used to detect a soluble LHCGR in serum. Serum concentrations of soluble LHCGR could not distinguish 4 patients with GCNIS and 216 patients with testicular germ cell tumors (TGCTs) from 297 infertile or 148 healthy young men. Instead, serum LHCGR levels were significantly higher in 112 patients with a seminoma >5 cm or elevated serum lactate dehydrogenase (LDH) compared with men harboring smaller seminomas <2 cm or normal LDH levels. Serum LHCGR levels in TGCT patients could not predict relapse irrespective whether determined pre- or post-orchiectomy. Combined, these novel findings suggest that LHCGR may be directly involved in the progression and growth of seminomas, and our retrospective pilot study suggests that serum LHCGR may have some prognostic value in men with seminoma.
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Iaria C, Capparucci F, De Benedetto G, Natale S, Panebianco R, Puleio R, Lanteri G. Gastric leiomyoma in a sea bass Dicentrarchus labrax broodfish. DISEASES OF AQUATIC ORGANISMS 2020; 137:211-216. [PMID: 32132274 DOI: 10.3354/dao03444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This report describes a spontaneously arising non-infiltrative neoplasm of gastric tunica muscularis in a broodstock sea bass Dicentrarchus labrax from an Italian aquaculture farm. Microscopically, the mass was circumscribed and non-encapsulated and was composed of spindle cells arranged in parallel interlacing bundles or, occasionally, a whirling pattern. Cells had a small quantity of eosinophilic cytoplasm with distinct cell borders. Neoplastic cells were immuno-reactive with smooth muscle actin, vimentin and desmin; S100 was negative. The mucosal epithelium was intact with no neoplastic involvement. A gastric leiomyoma was diagnosed based on the findings. More efforts should be made to study the possible etiology of leiomyoma affecting fish from aquaculture.
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Affiliation(s)
- C Iaria
- Dept. of Chemical, Biological, Pharmaceutical and Environmental Sciences, via F. Stagno d'Alcontres 31, University of Messina, 98165 Messina, Italy
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