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Lemos FFB, Castro CTD, Calmon MS, Silva Luz M, Pinheiro SLR, Faria Souza Mendes dos Santos C, Correa Santos GL, Marques HS, Delgado HA, Teixeira KN, Souza CL, Oliveira MV, Freire de Melo F. Effectiveness of Helicobacter pylori eradication in the treatment of early-stage gastric mucosa-associated lymphoid tissue lymphoma: An up-to-date meta-analysis. World J Gastroenterol 2023; 29:2202-2221. [PMID: 37122607 PMCID: PMC10130965 DOI: 10.3748/wjg.v29.i14.2202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/10/2022] [Accepted: 03/14/2023] [Indexed: 04/13/2023] Open
Abstract
BACKGROUND Gastric mucosa-associated lymphoid tissue (MALT) lymphoma (GML) is usually a low-grade B-cell neoplasia strongly associated with Helicobacter pylori (H. pylori)-induced chronic gastritis. Clinical practice guidelines currently recommend H. pylori eradication as the preferred initial treatment for early-stage GML. To determine the practical effect of bacterial eradication as the sole initial therapy for early-stage GML, an updated analysis and review of available evidence is imperative.
AIM To perform a meta-analysis to assess the rate of complete remission (CR) of H. pylori-positive early-stage GML following bacterial eradication.
METHODS We performed independent, computer-assisted literature searches using the PubMed/MEDLINE, Embase, and Cochrane Central databases through September 2022. Prospective and retrospective observational studies evaluating the CR of early-stage GML following bacterial eradication in H. pylori-positive patients. The risk of bias was assessed using Joanna Briggs Institute (JBI) Critical Appraisal Tools. The pooled estimate of the complete histopathological remission rate and respective confidence intervals (95%CI) were calculated following the random-effects model. Heterogeneity and inconsistency were assessed using Cochran’s Q test and I2 statistic, and heterogeneity was defined as P < 0.01 and I² > 50%, respectively. Subgroup and meta-regression analyses were conducted to explore potential sources of heterogeneity.
RESULTS The titles and abstracts of 1576 studies were screened; 96 articles were retrieved and selected for full-text reading. Finally, 61 studies were included in the proportional meta-analysis (P-MA). Forty-six were prospective and fifteen were retrospective uncontrolled, single-arm, observational studies. The overall risk of bias was low to moderate in all but a single report, with an average critical appraisal score across all studies of 79.02%. A total of 2936 H. pylori-positive early-stage GML patients, in whom H. pylori was successfully eradicated, were included in the analysis. The pooled CR of H. pylori-positive early-stage GML after bacterial eradication was 75.18% (95%CI: 70.45%-79.91%). P-MA indicated the substantial heterogeneity in CR reported across studies (I2 = 92%; P < 0.01). Meta-regression analysis identified statistically significant effect modifiers, including the proportion of patients with t(11;18)(q21;q21)-positive GML and the risk of bias in each study.
CONCLUSION Comprehensive synthesis of available evidence suggests that H. pylori eradication is effective as the sole initial therapy for early-stage GML. Although the substantial heterogeneity observed across studies limits the interpretation of the pooled overall CR, the present study is a relevant to informing clinical practice.
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Affiliation(s)
- Fabian Fellipe Bueno Lemos
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029094, Bahia, Brazil
| | | | - Mariana Santos Calmon
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029094, Bahia, Brazil
| | - Marcel Silva Luz
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029094, Bahia, Brazil
| | - Samuel Luca Rocha Pinheiro
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029094, Bahia, Brazil
| | | | - Gabriel Lima Correa Santos
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029094, Bahia, Brazil
| | - Hanna Santos Marques
- Campus Vitória da Conquista, Universidade Estadual do Sudoeste da Bahia, Vitória da Conquista 45029094, Bahia, Brazil
| | - Henrique Affonso Delgado
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029094, Bahia, Brazil
| | | | - Cláudio Lima Souza
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029094, Bahia, Brazil
| | - Márcio Vasconcelos Oliveira
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029094, Bahia, Brazil
| | - Fabrício Freire de Melo
- Instituto Multidisciplinar em Saúde, Universidade Federal da Bahia, Vitória da Conquista 45029094, Bahia, Brazil
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Jonason DE, Linden M, Trikudanathan G. Mucosa-Associated Lymphoid Tissue Lymphoma Masked as Gastric Varices With Acute Upper Gastrointestinal Bleeding: A Case Report. Cureus 2022; 14:e26424. [PMID: 35911343 PMCID: PMC9336519 DOI: 10.7759/cureus.26424] [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: 06/28/2022] [Indexed: 11/06/2022] Open
Abstract
Extra-nodal marginal zone lymphoma of mucosa-associated lymphoid tissue (MALT) is uncommon and difficult to diagnose due to varied clinical presentations and endoscopic appearances masquerading as other pathology. Rarely, it has been associated with acute upper gastrointestinal (GI) bleeding. We report on a 60-year-old male who presented with an acute upper GI bleed and endoscopic findings suggestive of isolated gastric varices (GV), ultimately determined to be MALT lymphoma. Complete remission was achieved with radiation therapy, with no recurrence at a 12-month follow-up. This case highlights a unique clinical and endoscopic presentation of MALT lymphoma which providers should be aware of. We emphasize the use of endoscopic ultrasound (EUS) evaluation for accurate diagnosis.
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Yi Q, Xie W, Sun W, Sun W, Liao Y. A Concise Review of MicroRNA-383: Exploring the Insights of Its Function in Tumorigenesis. J Cancer 2022; 13:313-324. [PMID: 34976192 PMCID: PMC8692686 DOI: 10.7150/jca.64846] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 11/10/2021] [Indexed: 12/15/2022] Open
Abstract
MicroRNAs (miRNAs) are small noncoding RNAs that commonly have 18-22 nucleotides and play important roles in the regulation of gene expression via directly binding to the 3'-UTR of target mRNAs. Approximately 50% of human genes are regulated by miRNAs and they are involved in many human diseases, including various types of cancers. Recently, microRNA-383 (miR-383) has been identified as being aberrantly expressed in multiple cancers, such as malignant melanoma, colorectal cancer, hepatocellular cancer, and glioma. Increasing evidence suggests that miR-383 participates in tumorigenic events including proliferation, apoptosis, invasion, and metastasis as well as drug resistance. Although downstream targets including CCND1, LDHA, VEGF, and IGF are illustrated to be regulated by miR-383, its roles in carcinogenesis are still ambiguous and the underlying mechanisms are still unclear. Herein, we review the latest studies on miR-383 and summarize its functions in human cancers and other diseases. The goal of this review is to provide new strategies for targeted therapy and further investigations.
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Affiliation(s)
- Qian Yi
- The Central Laboratory, Shenzhen Second People's Hospital/First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, Guangdong 518035, P.R. China.,Department of Physiology, School of Basic Medical Science, Southwest Medical University, Luzhou, Sichuan province 646099, P.R. China.,Laboratory of Anesthesia and Organ Protection, Southwest Medical University, Luzhou, Sichuan province 646099, P.R. China
| | - Wei Xie
- Department of Orthopedics, Shenzhen Second People's Hospital/First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, Guangdong 518035, P.R. China
| | - Wei Sun
- Department of Orthopedics, Shenzhen Second People's Hospital/First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, Guangdong 518035, P.R. China
| | - Weichao Sun
- The Central Laboratory, Shenzhen Second People's Hospital/First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, Guangdong 518035, P.R. China.,Department of Orthopedics, Shenzhen Second People's Hospital/First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, Guangdong 518035, P.R. China
| | - Yi Liao
- The Central Laboratory, Shenzhen Second People's Hospital/First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, Guangdong 518035, P.R. China
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Jafarzadeh A, Noori M, Sarrafzadeh S, Tamehri Zadeh SS, Nemati M, Chatrabnous N, Jafarzadeh S, Hamblin MR, Jafari Najaf Abadi MH, Mirzaei H. MicroRNA-383: A tumor suppressor miRNA in human cancer. Front Cell Dev Biol 2022; 10:955486. [PMID: 36313570 PMCID: PMC9608775 DOI: 10.3389/fcell.2022.955486] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 08/23/2022] [Indexed: 02/05/2023] Open
Abstract
Downregulated expression of anti-tumor miR-383 has been found in many kinds of cancer. MiR-383 family members can directly target the 3'-untranslated region (3'-UTR) of the mRNA of some pro-tumor genes to attenuate several cancer-related processes, including cell proliferation, invasion, migration, angiogenesis, immunosuppression, epithelial-mesenchymal transition, glycolysis, chemoresistance, and the development of cancer stem cells, whilst promoting apoptosis. Functionally, miR-383 operates as a tumor inhibitor miRNA in many types of cancer, including breast cancer, hepatocellular carcinoma, gastric cancer, pancreatic cancer, colorectal cancer, esophageal cancer, lung cancer, head and neck cancer, glioma, medulloblastoma, melanoma, prostate cancer, cervical cancer, oral squamous cell carcinoma, thyroid cancer, and B-cell lymphoma. Both pro-tumor and anti-tumor effects have been attributed to miR-383 in ovarian cancer. However, only the pro-tumor effects of miR-383 were reported in cholangiocarcinoma. The restoration of miR-383 expression could be considered a possible treatment for cancer. This review discusses the anti-tumor effects of miR-383 in human cancers, emphasizing their downstream target genes and potential treatment approaches.
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Affiliation(s)
- Abdollah Jafarzadeh
- Department of Immunology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
- Immunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
- *Correspondence: Abdollah Jafarzadeh, ; Mohammad Hassan Jafari Najaf Abadi, ; Hamed Mirzaei,
| | - Majid Noori
- Golestan Hospital Research Center, AJA University of Medical Sciences, Tehran, Iran
| | - Shaghayegh Sarrafzadeh
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Maryam Nemati
- Department of Immunology, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
- Department of Hematology and Laboratory Sciences, School of Para-Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Nazanin Chatrabnous
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sara Jafarzadeh
- Student Research Committee, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Michael R Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Johannesburg, South Africa
| | - Mohammad Hassan Jafari Najaf Abadi
- Department of Medical Biotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- *Correspondence: Abdollah Jafarzadeh, ; Mohammad Hassan Jafari Najaf Abadi, ; Hamed Mirzaei,
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
- *Correspondence: Abdollah Jafarzadeh, ; Mohammad Hassan Jafari Najaf Abadi, ; Hamed Mirzaei,
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Du Y, Liu X, Zhang S, Chen S, Guan X, Li Q, Chen X, Zhao Y. CircCRIM1 promotes ovarian cancer progression by working as ceRNAs of CRIM1 and targeting miR-383-5p/ZEB2 axis. Reprod Biol Endocrinol 2021; 19:176. [PMID: 34847936 PMCID: PMC8630901 DOI: 10.1186/s12958-021-00857-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 11/10/2021] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Ovarian cancer is the leading cause of death in patients with gynecologic cancer, and circular RNAs (circRNAs) are involved in cancer progression. However, there are limited studies on the roles of circRNAs in ovarian cancer. METHODS We designed divergent and convergent primers, used sanger sequencing and RNase R digestion to verify the source of circCRIM1. We detected the expression of circCRIM1 and its parental gene cysteine rich transmembrane BMP regulator 1 (CRIM1) in ovarian cancer and normal ovarian samples via qRT-PCR. MTT viability assay, apoptosis assay, wound healing assay and invasion assay were used to investigate the function of circCRIM1 and CRIM1 in ovarian cancer cell lines OVCAR3 and CAOV3. Mice xenografts experiment was performed. Bioinformatics predicted the microRNAs that bond with circCRIM1 and CRIM1, and dual luciferase reporter system confirmed it. Rescue experiments of microRNAs mimics transfection on the basis of circCRIM1 over-expression were carried out to uncover the mechanism by which circCRIM1 played cancer-promoting roles in ovarian cancer. RESULTS CircCRIM1 was derived from CRIM1 by back-splicing. CircCRIM1 and CRIM1 had higher expression in ovarian cancer than in normal ovarian tissues, and both of them promoted ovarian cancer progression in vitro. In vivo circCRIM1 promoted the growth of tumors. CircCRIM1 and CRIM1 had a positive correlation relationship in the same cohort of ovarian cancer tissues. Bioinformatics predicted and dual luciferase assay confirmed circCRIM1 and CRIM1 bond with miR-145-5p, and circCRIM1 bond with miR-383-5p additionally. CircCRIM1 positively affected the expression of CRIM1. After circCRIM1 was over-expressed, miR-145-5p mimics transfection reversed the expression of CRIM1. Western blot discovered circCRIM1 positively affected the expression of zinc finger E-box binding homeobox 2 (ZEB2). Rescue experiments found miR-383-5p mimics reversed ZEB2 expression and the cancer-promoting effects of circCRIM1. CONCLUSIONS CircCRIM1 bond with miR-145-5p to work as competing endogenous RNA (ceRNA) of CRIM1, and circCRIM1 bond with miR-383-5p to improve the expression of ZEB2 in ovarian cancer. CircCRIM1 and CRIM1 promoted the ovarian cancer progression and supplied a novel insight into the researches of ovarian cancer.
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Affiliation(s)
- Yuping Du
- Department of Obstetrics and Gynecology, Department of Gynecologic Oncology Research Office, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Xin Liu
- Department of Obstetrics and Gynecology, Department of Gynecologic Oncology Research Office, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Song Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of China Medical University, Department of Environmental and Occupational Health, School of Public Health, China Medical University, Shenyang, 110001, China
| | - Shuo Chen
- Department of Obstetrics and Gynecology, Department of Gynecologic Oncology Research Office, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Xue Guan
- Department of Gynecology, The First Affiliated Hospital of China Medical University, Shenyang, 110001, China
| | - Qianhui Li
- Department of Obstetrics and Gynecology, Department of Gynecologic Oncology Research Office, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Xi Chen
- Department of Obstetrics and Gynecology, Department of Gynecologic Oncology Research Office, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China
| | - Yang Zhao
- Department of Obstetrics and Gynecology, Department of Gynecologic Oncology Research Office, Key Laboratory for Major Obstetric Diseases of Guangdong Province, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510150, China.
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Harne PS, Mukherjee S, Achufusi T, Lowe D, Manocha D. Helicobacter pylori-Negative MALT Lymphoma Presenting as a Massive Recurrent Gastrointestinal Hemorrhage. J Investig Med High Impact Case Rep 2021; 8:2324709620937166. [PMID: 32583695 PMCID: PMC7318806 DOI: 10.1177/2324709620937166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Primary gastric lymphoma is rare, representing 5% of all primary gastric neoplasms. The presenting complaints of gastric mucosa-associated lymphoid tissue (MALT) lymphoma are usually nonspecific. However, life-threatening gastrointestinal bleeding from the stomach is unusual and sparsely reported. While studies reveal an indolent course, we present a case that presented with massive and recurrent hematemesis leading to hypovolemic shock secondary to endoscopically confirmed MALT lymphoma, which was treated with radiotherapy to achieve remission. She had no autoimmune diseases and tested negative for Helicobacter pylori. Our case emphasizes the importance of early diagnosis and timely intensive radiotherapy of a localized but aggressive gastric MALT lymphoma.
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Affiliation(s)
| | | | - Ted Achufusi
- SUNY Upstate Medical University, Syracuse, NY, USA
| | - Dhruv Lowe
- Geisinger Health System, Danville, PA, USA
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The Multifaceted Role and Utility of MicroRNAs in Indolent B-Cell Non-Hodgkin Lymphomas. Biomedicines 2021; 9:biomedicines9040333. [PMID: 33806113 PMCID: PMC8064455 DOI: 10.3390/biomedicines9040333] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/14/2021] [Accepted: 03/18/2021] [Indexed: 02/07/2023] Open
Abstract
Normal B-cell development is a tightly regulated complex procedure, the deregulation of which can lead to lymphomagenesis. One common group of blood cancers is the B-cell non-Hodgkin lymphomas (NHLs), which can be categorized according to the proliferation and spread rate of cancer cells into indolent and aggressive ones. The most frequent indolent B-cell NHLs are follicular lymphoma and marginal zone lymphoma. MicroRNAs (miRNAs) are small non-coding RNAs that can greatly influence protein expression. Based on the multiple interactions among miRNAs and their targets, complex networks of gene expression regulation emerge, which normally are essential for proper B-cell development. Multiple miRNAs have been associated with B-cell lymphomas, as the deregulation of these complex networks can lead to such pathological states. The aim of the present review is to summarize the existing information regarding the multifaceted role of miRNAs in indolent B-cell NHLs, affecting the main B-cell subpopulations. We attempt to provide insight into their biological function, the complex miRNA-mRNA interactions, and their biomarker utility in these malignancies. Lastly, we address the limitations that hinder the investigation of the role of miRNAs in these lymphomas and discuss ways that these problems could be overcome in the future.
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Bestari MB, Palungkun IG, Hernowo BS, Abdurachman SA, Nugraha ES. Low-Stage Gastric MALT Lymphoma Causing Life-Threatening Upper Gastrointestinal Bleeding. Case Rep Gastroenterol 2019; 13:376-384. [PMID: 31616232 PMCID: PMC6792433 DOI: 10.1159/000502795] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 08/15/2019] [Indexed: 12/27/2022] Open
Abstract
Gastric mucosa-associated lymphoid tissue (MALT) lymphoma is an uncommon tumor of the stomach that only comprises around 1–6% of all tumors of the stomach. Non-Hodgkin lymphoma more commonly affects the lymph nodes and may spread to the spleen and bone marrow, whereas extranodal non-Hodgkin lymphoma is less common. Primary gastric lymphoma is further divided based on histologic features; one of the types is MALT lymphoma, which is strongly associated with Helicobacter pylori infection. The first sign of the disease is usually mimicking gastritis. However, in the case reported here, the first sign of gastric MALT lymphoma was massive gastrointestinal (GI) bleeding with hemodynamic instability in a 75-year-old male. The patient came to the emergency department and was immediately resuscitated, intubated, and admitted to the intensive care unit. Urgent endoscopy (<6 h) was done to identify the source of bleeding, which were oozing ulcerated polypoid masses; endoscopic hemostasis was done, which successfully stopped the bleeding. However, the next day, rebleeding occurred and a second endoscopic hemostasis was performed. The bleeding stopped and the patient showed gradual improvement. The biopsy result of a gastric MALT lymphoma of grade IE1 with H. pylori infection warranted a treatment regimen for Helicobacter eradication. The patient recovered, with follow-up endoscopy at 3 months, at 6 months, and yearly thereafter with no sign of recurrence. This case shows that gastric MALT lymphoma, even at a low stage (1E1), can cause life-threatening upper GI bleeding that requires aggressive resuscitation and urgent endoscopy.
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Affiliation(s)
- Muhammad Begawan Bestari
- Division of Gastroenterohepatology, Department of Internal Medicine, Hasan Sadikin General Hospital-Faculty of Medicine, University of Padjadjaran, Bandung, Indonesia
| | | | - Bethy Suryawathy Hernowo
- Department of Anatomic Pathology, Hasan Sadikin General Hospital-Faculty of Medicine, University of Padjadjaran, Bandung, Indonesia
| | - Siti Aminah Abdurachman
- Division of Gastroenterohepatology, Department of Internal Medicine, Hasan Sadikin General Hospital-Faculty of Medicine, University of Padjadjaran, Bandung, Indonesia
| | - Eka Surya Nugraha
- Division of Gastroenterohepatology, Department of Internal Medicine, Hasan Sadikin General Hospital-Faculty of Medicine, University of Padjadjaran, Bandung, Indonesia
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Chen Z, Ju H, Zhao T, Yu S, Li P, Jia J, Li N, Jing X, Tan B, Li Y. hsa_circ_0092306 Targeting miR-197-3p Promotes Gastric Cancer Development by Regulating PRKCB in MKN-45 Cells. MOLECULAR THERAPY-NUCLEIC ACIDS 2019; 18:617-626. [PMID: 31689616 PMCID: PMC6838893 DOI: 10.1016/j.omtn.2019.08.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 07/11/2019] [Accepted: 08/07/2019] [Indexed: 12/24/2022]
Abstract
Gastric cancer (GC) is one of the most common cancers worldwide and is thus a global cancer burden. Here, we focused on a novel circular RNA hsa_circ_0092306 and explored the potential molecular mechanism to provide a new target for and novel insights into GC treatment. The GEO microarray was mined and analyzed with R software. Sanger sequencing and RNase R assay were applied to verify the identification of hsa_circ_0092306. Quantitative real-time PCR and western blot were performed to measure the mRNA and protein levels. Pull-down and luciferase reporter assays were conducted to confirm the target relationships. Annexin V-PI apoptosis flow cytometry, 3-(4,5Dimethylthiazol- yl)-2,5Dimethylthiazol-2-yl)-2,5diphenyltetrazolium bromide (MTT), wound healing, and Transwell assays were applied to detect cell apoptosis, viability, migration, and invasion in MKN-45 cells, respectively. A xenograft in vivo experiment was conducted to confirm the cell experiment results. hsa_circ_0092306 was upregulated in GC tissues and GC cells, and promoted GC development in MKN-45 cells. hsa_circ_0092306 inhibited tumor suppressor miR-197-3p expression but promoted tumor promotor protein kinase C beta (PRKCB) expression in MKN-45 cells. hsa_circ_0092306 and PRKCB had a common target (miR-197-3p) and were negatively related to miR-197-3p expression. hsa_circ_0092306 promoted the development of GC by regulating the pathway of miR-197-3p/PRKCB in MKN-45 cells.
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Affiliation(s)
- Zihao Chen
- Graduate School of Hebei Medical University, Shijiazhuang 050017, Hebei, China; The Third Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, Hebei, China
| | - Hongping Ju
- School of Medicine, Kunming University, Kunming 650214, Yunnan, China; The Respiratory System Disease Prevention and Control of Public Service Platform of Science and Technology in Yunnan Province, Kunming 650214, Yunnan, China.
| | - Ting Zhao
- Graduate School of Hebei Medical University, Shijiazhuang 050017, Hebei, China
| | - Shan Yu
- School of Medicine, Kunming University, Kunming 650214, Yunnan, China
| | - Ping Li
- School of Medicine, Kunming University, Kunming 650214, Yunnan, China
| | - Jing Jia
- School of Medicine, Kunming University, Kunming 650214, Yunnan, China
| | - Nan Li
- School of Medicine, Kunming University, Kunming 650214, Yunnan, China
| | - Xiaojie Jing
- Department of Medicine, The People's Hospital of Economic and Technological Development Zone, Kunming 650217, Yunnan, China
| | - Bibo Tan
- The Third Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, Hebei, China
| | - Yong Li
- The Third Department of Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, Hebei, China.
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