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Rolf D, Reinartz G, Rehn S, Kittel C, Eich HT. Development of Organ-Preserving Radiation Therapy in Gastric Marginal Zone Lymphoma. Cancers (Basel) 2022; 14:cancers14040873. [PMID: 35205623 PMCID: PMC8869852 DOI: 10.3390/cancers14040873] [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: 11/29/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 12/04/2022] Open
Abstract
Simple Summary Gastric marginal zone lymphoma of the stomach is a rare cancer type primarily treated with oral proton pump inhibitors. If the disease does not respond to this, radiation is the treatment of choice. This review presents the development of radiation therapy over the last decades. Earlier, the stomach was surgically removed and irradiation was performed using large-field techniques and high doses of radiation. Currently, the standard treatment is the use of small-volume radiation therapy (with few side effects) with the preservation of the stomach, which provides excellent outcomes. In addition, this paper provides an outlook on current studies and possible future developments. Abstract Gastric marginal zone lymphoma (gMZL) of mucosa-associated lymphoid tissue (MALT) may persist even after H. pylori eradication, or it can be primarily Helicobacter pylori (H. pylori) independent. For patients without the successful eradication of lymphoma, or with progressive disease, treatment options have historically included partial or total gastrectomy. Presently, in these instances, curative radiation therapy (RT) is the current standard of care. This review emphasizes the historically changing role of radiation therapy in gMZL, progressing from large-volume RT without surgery, to localized RT, on its own, as a curative organ-preserving treatment. This overview shows the substantial progress in radiation therapy during the recent two to three decades, from high-dose, large-field techniques to low-dose, localized target volumes based on advanced imaging, three-dimensional treatment planning, and advanced treatment delivery techniques. RT has evolved from very large extended field techniques (EF) with prophylactic treatment of the whole abdomen and the supradiaphragmatic lymph nodes, applying doses between 30 and 50 Gy, to involved-field RT (IF), to the current internationally recommended involved site radiation therapy (ISRT) with a radiation dose of 24–30 Gy in gMZL. Stage-adapted RT is a highly effective and safe treatment with excellent overall survival rates and very rare acute or late treatment-related toxicities, as shown not only in retrospective studies, but also in large prospective multicenter studies, such as those conducted by the German Study Group on Gastrointestinal Lymphoma (DSGL). Further de-escalation of the radiation treatments with low-dose 20 Gy, as well as ultra-low-dose 4 Gy radiation therapy, is under investigation within ongoing prospective clinical trials of the International Lymphoma Radiation Oncology Group (ILROG) and of the German Lymphoma Alliance (GLA).
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Quéro L, Labidi M, Bollet M, Bommier C, Guillerm S, Hennequin C, Thieblemont C. Radiotherapy for gastric mucosa-associated lymphoid tissue lymphoma. World J Gastrointest Oncol 2021; 13:1453-1465. [PMID: 34721777 PMCID: PMC8529931 DOI: 10.4251/wjgo.v13.i10.1453] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 07/09/2021] [Accepted: 08/30/2021] [Indexed: 02/06/2023] Open
Abstract
Gastric mucosa-associated lymphoid tissue (MALT) lymphoma is a rare disease which is often associated with Helicobacter pylori (H. pylori) infection. First-line treatment of stage IE and IIE localized gastric MALT lymphoma is based on the eradication of H. pylori. The presence of H. pylori resistance factors such as translocation t (11;18), peri-gastric lymph node involvement and the degree of tumor infiltration of the gastric wall; or lack of response to antibiotic therapy are two main indications to treat with definitive radiotherapy (RT). RT is an effective treatment in localized gastric MALT lymphoma. A moderate dose of 30 Gy allows a high cure rate while being well tolerated. After treatment, regular gastric endoscopic follow-up is necessary to detect a potential occurrence of gastric adenocarcinoma.
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Affiliation(s)
- Laurent Quéro
- Department of Radiation Oncology, AP-HP, Saint Louis Hospital, Paris 75010, France
- Faculty of Medicine, Université de Paris, Paris 75005, France
| | - Mouna Labidi
- Department of Radiation Oncology, AP-HP, Saint Louis Hospital, Paris 75010, France
| | - Marc Bollet
- Department of Radiation Oncology, Hartmann Oncology Radiotherapy Group, Levallois-Perret 92044, France
| | - Côme Bommier
- Faculty of Medicine, Université de Paris, Paris 75005, France
| | - Sophie Guillerm
- Department of Radiation Oncology, AP-HP, Saint Louis Hospital, Paris 75010, France
| | - Christophe Hennequin
- Department of Radiation Oncology, AP-HP, Saint Louis Hospital, Paris 75010, France
- Faculty of Medicine, Université de Paris, Paris 75005, France
| | - Catherine Thieblemont
- Faculty of Medicine, Université de Paris, Paris 75005, France
- Hemato-Oncology, DMU DHI, AP-HP, Saint Louis Hospital, Paris 75010, France
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Baek JY, Lim DH, Oh D, Nam H, Kim JJ, Lee JH, Min BH, Lee H. Increased Risk of Diabetes after Definitive Radiotherapy in Patients with Indolent Gastroduodenal Lymphoma. Cancer Res Treat 2021; 54:294-300. [PMID: 33794083 PMCID: PMC8756128 DOI: 10.4143/crt.2021.073] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 03/31/2021] [Indexed: 12/04/2022] Open
Abstract
Purpose This study aimed to evaluate the effect of radiotherapy (RT) on the risk of diabetes by assessing hemoglobin A1c (HbA1c) levels in patients with gastroduodenal indolent lymphoma. Materials and Methods This retrospective study included patients with stage I extranodal marginal zone lymphoma of the mucosa-associated lymphoid tissue or follicular lymphoma of the gastroduodenal region who were treated with Helicobacter pylori eradication and/or RT between 2000 and 2019 in our institution. Of total 79 patients with HbA1c test, 17 patients received RT (RT group), while 62 patients did not receive RT (control group). A diabetes-associated event (DAE) was defined as a ≥ 0.5% increase in HbA1c levels from baseline, and diabetes event (DE) were defined as HbA1c level of ≥ 6.5%. Results During the median follow-up of 49 months, no local failure occurred after RT and no patients died of lymphoma. The RT group had significantly higher risk for DAEs on univariable analysis (hazard ratio [HR], 4.18; 95% confidence interval [CI], 1.64 to 10.66; p < 0.01) and multivariable analysis (HR, 3.68; 95% CI, 1.42 to 9.56; p=0.01). Further, the DE risk was significantly higher in the RT group than in the control group (HR, 4.32; 95% CI, 1.08 to 17.30; p=0.04) and in patients with increased baseline HbA1c levels (HR, 35.83; 95% CI, 2.80 to 459.19; p=0.01). On multivariable analysis, RT significantly increased the risk of DEs (HR, 4.55; 95% CI, 1.08 to 19.19; p=0.04), even after adjusting baseline HbA1c level (HR, 40.97; 95% CI, 3.06 to 548.01; p=0.01). Conclusion Patients who received RT for gastroduodenal indolent lymphoma had an increased risk of diabetes compared to those who did not.
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Affiliation(s)
- Jong Yun Baek
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Do Hoon Lim
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Dongryul Oh
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Heerim Nam
- Department of Radiation Oncology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jae J Kim
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jun Haeng Lee
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Byung-Hoon Min
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Hyuk Lee
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Jeong SH, Hyun SY, Choi JS, Kim HM. Trends of Incidence and Survival Rates of Mucosa-associated Lymphoid Tissue Lymphoma in the Korean Population: Analysis of the Korea Central Cancer Registry Database. J Korean Med Sci 2020; 35:e294. [PMID: 32924338 PMCID: PMC7490202 DOI: 10.3346/jkms.2020.35.e294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 07/16/2020] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (MALT-lymphoma) is an extranodal lymphoma that occurs at various sites in the body. There is a limited understanding of the incidence and survival rates of MALT-lymphoma. To investigate the nation-wide incidence and survival rates of MALT-lymphoma in Korea during 1999-2017, the data on MALT-lymphoma were retrieved from the Korea Central Cancer Registry. METHODS During the time period of 1999-2017, 11,128 patients were diagnosed with MALT-lymphoma. The age and sex of the patients and the Surveillance, Epidemiology, and End Results (SEER) summary stage of the tumor were analyzed, and the relative survival rates (RSRs) were calculated. RESULTS The age-standardized incidence rates of MALT-lymphoma in 2017 among males and females were 1.53 and 1.61 per 100,000 individuals, respectively, whereas those in 1999 among males and females were 0.21 and 0.20, respectively in Korea. The RSRs were more than 97% at 10 years post-diagnosis between 1993 and 2017. The 5-year RSRs were 87.4%, 94.8%, 97.8%, and 98.6% during 1996-2000, 2001-2005, 2006-2010, and 2013-2017, respectively. Based on SEER summary staging, the 5-year RSRs during 2013-2017 were 100.3%, 90.8%, 91.3%, and 97.9% for patients with localized, regional, distant, and unknown stages of MALT-lymphoma, respectively. CONCLUSION Although the incidence of MALT-lymphoma is low in Korea, it has been increasing in recent years. The prognosis of MALT-lymphoma is good even at advanced stages. These findings provide useful insights to clinicians about MALT-lymphoma and inform patients about the survival rate.
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Affiliation(s)
- Seok Hoo Jeong
- Division of Gastroenterology, Department of Internal Medicine, Catholic Kwandong University International St. Mary's Hospital, Incheon, Korea
| | - Shin Young Hyun
- Division of Hematology and Oncology, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Ja Sung Choi
- Division of Gastroenterology, Department of Internal Medicine, Catholic Kwandong University International St. Mary's Hospital, Incheon, Korea
| | - Hee Man Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea.
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Choi KH, Lee HH, Jung SE, Park KS, O JH, Jeon YW, Choi BO, Cho SG. Analysis of the response time to involved-field radiotherapy in primary gastrointestinal low-grade B-cell lymphoma. Radiat Oncol 2020; 15:210. [PMID: 32867796 PMCID: PMC7457476 DOI: 10.1186/s13014-020-01649-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 08/19/2020] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Early-stage primary gastrointestinal (GI) low-grade B-cell lymphoma shows good therapeutic response to primary radiotherapy. However, there is no clear guideline for the evaluation of response to radiation therapy currently. The aim of this study was to analyze the relationship between the best response time and the clinical course after radiotherapy. METHODS Patients who underwent radiotherapy for treatment of primary GI low-grade B-cell lymphoma from September 2007 to December 2018 at Seoul St. Mary's Hospital were included. Early responders were defined by best response within 6 months after radiotherapy, and delayed responders after 6 months. Clinical and pathological factors associated with delayed response and survival analyses were performed to investigate the recurrence and survival during follow-up. RESULTS A total of 43 patients were evaluated and the number of gastric mucosa-associated lymphoid tissue and duodenal follicular lymphoma was 36 and 7, respectively. All of 43 patients showed complete remission to radiotherapy and the best response time after radiotherapy was a median of 3 months. There were 8 delayed responders with a median duration of 8.9 months. Early and delayed responders were characterized by a significant difference in depth of invasion beyond the mucosal layer. CONCLUSIONS Delayed responders did not show differences in oncological outcomes compared with early responders. They were allowed to watch and wait for an additional 6 to 12 months without further treatment.
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Affiliation(s)
- Kyu Hye Choi
- Department of Radiation Oncology, Catholic University Lymphoma Group, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Han Hee Lee
- Department of Gastroenterology, Catholic University Lymphoma Group, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seung-Eun Jung
- Department of Radiology, Catholic University Lymphoma Group, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Kyung-Sin Park
- Department of Pathology, Catholic University Lymphoma Group, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Joo-Hyun O
- Department of Nuclear Medicine, Catholic University Lymphoma Group, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Young-Woo Jeon
- Department of Hematology, Catholic University Lymphoma Group, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Byung-Ock Choi
- Department of Radiation Oncology, Catholic University Lymphoma Group, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
| | - Seok-Goo Cho
- Department of Hematology, Catholic University Lymphoma Group, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
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Reinartz G, Molavi Tabrizi C, Liersch R, Ullerich H, Hering D, Willborn K, Schultze J, Micke O, Ruebe C, Fischbach W, Bentz M, Daum S, Pott C, Tiemann M, Moeller P, Neubauer A, Wilhelm M, Lenz G, Berdel WE, Willich N, Eich HT. Renaissance of Radiotherapy in Intestinal Lymphoma? 10-Year Efficacy and Tolerance in Multimodal Treatment of 134 Patients: Follow-up of Two German Multicenter Consecutive Prospective Phase II Trials. Oncologist 2020; 25:e816-e832. [PMID: 32219909 PMCID: PMC7216456 DOI: 10.1634/theoncologist.2019-0783] [Citation(s) in RCA: 2] [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: 10/13/2019] [Accepted: 01/20/2020] [Indexed: 01/16/2023] Open
Abstract
Purpose This article reports on the long‐term impact of radiotherapy adapted to stage, histology, and previous resection in a large cohort of patients with intestinal lymphoma (iL) treated with definitive or adjuvant curative‐intent radiation therapy (RT) ± chemotherapy (CHOP, MCP, or COP). Patients and Methods In two consecutive prospective study designs, 134 patients with indolent (stage IE–IIE) or aggressive (stage IE–IVE) iL were referred to 61 radiotherapeutic institutions between 1992 and 2003. Patients with indolent iL received extended field (EF) 30 Gy (+10 Gy boost in definitive treatment); patients with aggressive iL received involved field (IF) (EF) 40 Gy by means of stage‐, histology‐, and operation‐adapted radiation fields. Results The patients had median age 58 years and were predominantly male (2:1). Histology showed aggressive prevalence (1.6:1), stage IE–to–stage IIE ratio of iL 1.04:1, and localized stages–to–advanced stages ratio of aggressive lymphoma 23:1. Median follow‐up was in total 11.7 years: 10.0 years in the first study, GIT (GastroIntestinal‐Tract) 1992, and 11.8 years in the second study, GIT 1996. Lymphoma involvement was predominantly a single intestinal lesion (82.1%). Decrease of radiation field size from EF to IF in stage I aggressive iL from GIT 1992 to GIT 1996 resulted in a nonsignificant partial reduction of chronic toxicity while maintaining comparable survival rates (5‐year overall survival 87.9 vs. 86.7%, 10‐year overall survival 77.4 vs. 71.5%) with nonsignificant difference in event‐free survival (5‐year event‐free survival 82.6 vs. 86.7%, 10‐year event‐free survival 69.7 vs. 71.5%) and lymphoma‐specific survival (5‐year lymphoma‐specific survival 90.1 vs. 91.9%, 10‐year lymphoma‐specific survival 87.6% vs. 91.9%). Comparative dose calculation of two still available indolent duodenal lymphoma computed tomography scans revealed lower radiation exposure to normal tissues from applying current standard involved site RT (ISRT) 30 Gy in both cases. Conclusion RT adapted to stage, histology, and resection in multimodal treatment of iL, despite partially decreasing field size (EF to IF), achieves excellent local tumor control and survival rates. The use of modern RT technique and target volume with ISRT offers the option of further reduction of normal tissue complication probability. Implications for Practice Although patients with intestinal lymphoma (iL) are heterogeneous according to histology and subtype, they benefit from radiotherapy. Prospective study data from 134 patients with indolent iL (stage IE–IIE) or aggressive iL (stage IE–IVE) show 100% tumor control after definitive or adjuvant curative‐intent radiation therapy ± chemotherapy. Radiation treatment was applied between 1992 and 2003. Median follow‐up in total was 11.7 years. No radiotherapy‐associated death occurred. Relapse developed in 15.7% of the entire cohort; distant failure was more frequent than local (4:1). Normal tissue complication probability can be further improved using modern involved site radiation therapy techniques. This article reports the details of radiation therapy in the therapeutic multimodality approach for treatment of patients with intestinal lymphoma.
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Affiliation(s)
- Gabriele Reinartz
- Department of Radiation Oncology, University Hospital of MuensterMuensterGermany
| | | | - Ruediger Liersch
- Department of Medicine A (Hematology, Oncology, and Pneumology), University Hospital of MuensterMuensterGermany
| | - Hansjoerg Ullerich
- Department of Medicine B (Gastroenterology and Hepatology), University Hospital of MuensterMuensterGermany
| | - Dominik Hering
- Department of Radiation Oncology, University Hospital of MuensterMuensterGermany
| | - Kay Willborn
- Department of Radiotherapy and Radiation Oncology, Pius Hospital OldenburgOldenburgGermany
| | - Juergen Schultze
- Department of Radiation Oncology, University of Schleswig‐HolsteinKielGermany
| | - Oliver Micke
- Department of Radiotherapy and Radiation Oncology, Franziskus Hospital BielefeldBielefeldGermany
| | - Christian Ruebe
- Department of Radiation Oncology, University of SaarlandHomburgGermany
| | - Wolfgang Fischbach
- Department of Gastroenterology and Oncology, Hospital of AschaffenburgAschaffenburgGermany
| | - Martin Bentz
- Department of Medical Oncology, Municipal Hospital of KarlsruheKarlsruheGermany
| | - Severin Daum
- Department of Gastroenterology, University CharitéBerlinGermany
| | - Christiane Pott
- Department of Medical Oncology, University of Schleswig‐HolsteinKielGermany
| | | | - Peter Moeller
- Department of Pathology, University of UlmUlmGermany
| | - Andreas Neubauer
- Department of Medical Oncology, University of MarburgMarburgGermany
| | - Martin Wilhelm
- Department of Medical Oncology, Paracelsus Medical UniversityKlinikum NuernbergGermany
| | - Georg Lenz
- Department of Medicine A (Hematology, Oncology, and Pneumology), University Hospital of MuensterMuensterGermany
| | - Wolfgang E. Berdel
- Department of Medicine A (Hematology, Oncology, and Pneumology), University Hospital of MuensterMuensterGermany
| | - Normann Willich
- Department of Radiation Oncology, University Hospital of MuensterMuensterGermany
| | - Hans T. Eich
- Department of Radiation Oncology, University Hospital of MuensterMuensterGermany
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Elsayad K, Reinartz G, Oertel M, Rehn S, Eismann J, Scobioala S, Berssenbrügge H, Eter N, Weishaupt C, Schmidt HH, Friedrichs B, Grünewald I, Hartmann W, Lenz G, Wardelmann E, Willich N, Eich HT. Radiotherapy of extranodal low-grade follicular and marginal zone lymphomas: long-term follow-up of 159 patients. Strahlenther Onkol 2019; 196:117-125. [PMID: 31732783 DOI: 10.1007/s00066-019-01538-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Accepted: 10/23/2019] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To evaluate clinical, histopathologic, and radiation (RT) dose parameters in patients with extranodal low-grade (ENLG) non-Hodgkin lymphoma (NHL) and their possible impact on local control (LC) and survival. MATERIALS AND METHODS The medical records of 159 patients with 181 histologically confirmed ENLG-NHL lesions treated at our institution were reviewed retrospectively. RESULTS The predominant histological subtype (73%) was marginal zone lymphoma (MZL). Common lesion sites were the gastrointestinal tract (GIT; 33%), skin (26%), and orbit (21%). The majority of patients (88%) presented with stage I/II disease. Thirty-three (20%) lesions were treated with reduced-dose RT (≤30.6 Gy) and 148 lesions (80%) with conventional-dose RT (>30.6 Gy), with an overall median dose of 39.6 Gy (range 4-63). The median follow-up period was 72 months. The 10-year local control (LC), Progression-free survival (PFS), and overall survival (OS) rates were 96, 65, and 82%, respectively. Higher overall response rate (ORR; 98% vs. 94%, p = 0.001) and complete response rate (CRR; 95% vs. 73%, p = 0.001) were observed in patients treated with conventional-dose regimens than in those treated with reduced-dose regimens. Ten-year PFS (p = 0.90) and OS (p = 0.40) was similar between the two dose groups. RT was well tolerated in both dose groups, with no grade 4/5 toxicities. In the multivariate analysis, RT dose and timing (upfront or salvage) were related to LC, whereas age, histology, and complete response (CR) to RT were associated with PFS. Patient age and radiation field size impacted OS. CONCLUSION RT is an effective and curative local treatment for early-stage FL and MZL at conventional and reduced radiation doses. Conventional-doses seems to be associated with local response improvement, without significant differences in PFS rates. Age, histology, and response to RT may influence the PFS.
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Affiliation(s)
- Khaled Elsayad
- Radiation Oncology Department, University Hospital Muenster, Albert-Schweitzer-Campus 1, Building A1, 48149, Muenster, Germany.
| | - Gabriele Reinartz
- Radiation Oncology Department, University Hospital Muenster, Albert-Schweitzer-Campus 1, Building A1, 48149, Muenster, Germany
| | - Michael Oertel
- Radiation Oncology Department, University Hospital Muenster, Albert-Schweitzer-Campus 1, Building A1, 48149, Muenster, Germany
| | - Stephan Rehn
- Radiation Oncology Department, University Hospital Muenster, Albert-Schweitzer-Campus 1, Building A1, 48149, Muenster, Germany
| | - Jens Eismann
- Radiation Oncology Department, University Hospital Muenster, Albert-Schweitzer-Campus 1, Building A1, 48149, Muenster, Germany
| | - Sergiu Scobioala
- Radiation Oncology Department, University Hospital Muenster, Albert-Schweitzer-Campus 1, Building A1, 48149, Muenster, Germany
| | - Hendrik Berssenbrügge
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Muenster, Muenster, Germany
| | - Nicole Eter
- Department of Ophthalmology, University Hospital Muenster, Muenster, Germany
| | - Carsten Weishaupt
- Department of Dermatology, University Hospital Muenster, Muenster, Germany
| | - Hartmut H Schmidt
- Department of Medicine B for Gastroenterology and Hepatology, University Hospital Muenster, Muenster, Germany
| | - Birte Friedrichs
- Department of Medicine A, University Hospital Muenster, Muenster, Germany
| | - Inga Grünewald
- Gerhard-Domagk-Institute of Pathology, University Hospital Muenster, Muenster, Germany
| | - Wolfgang Hartmann
- Gerhard-Domagk-Institute of Pathology, University Hospital Muenster, Muenster, Germany
| | - Georg Lenz
- Department of Medicine A, University Hospital Muenster, Muenster, Germany
| | - Eva Wardelmann
- Gerhard-Domagk-Institute of Pathology, University Hospital Muenster, Muenster, Germany
| | - Normann Willich
- Radiation Oncology Department, University Hospital Muenster, Albert-Schweitzer-Campus 1, Building A1, 48149, Muenster, Germany
| | - Hans Theodor Eich
- Radiation Oncology Department, University Hospital Muenster, Albert-Schweitzer-Campus 1, Building A1, 48149, Muenster, Germany
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8
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Reinartz G, Pyra RP, Lenz G, Liersch R, Stüben G, Micke O, Willborn K, Hess CF, Probst A, Fietkau R, Jany R, Schultze J, Rübe C, Hirt C, Fischbach W, Bentz M, Daum S, Pott C, Tiemann M, Möller P, Neubauer A, Wilhelm M, Willich N, Berdel WE, Eich HT. Favorable radiation field decrease in gastric marginal zone lymphoma : Experience of the German Study Group on Gastrointestinal Lymphoma (DSGL). Strahlenther Onkol 2019; 195:544-557. [PMID: 30859254 DOI: 10.1007/s00066-019-01446-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 02/15/2019] [Indexed: 12/12/2022]
Abstract
PURPOSE Long-term impact of stage-adapted field reduction in a large cohort of gastric marginal zone lymphoma (gMZL) patients treated conservatively with curative radiation therapy (RT). PATIENTS AND METHODS Prospective analysis of paper records of 290 patients with stage IE-IIE gMZL, treated in 78 radiotherapeutic institutions in Germany from 1992-2013. Stage-adapted radiation fields decreased from extended field (EF) to involved field (IF) over the course of three consecutive prospective trials of the German Study Group on Gastrointestinal Lymphoma (DSGL). Treatment results were compared between the three cohorts. RESULTS Overall collective with median age of 60 years, slight male predominance (m:f = 1.1:1) and ratio of disease stage I:stage II = 2.1:1. Median follow-up 6.4 years in total: 13.0 years in the first gastrointestinal study (GIT 1992), 8.2 years in the second (GIT 1996) and 4.7 years in the third study (DSGL 01/2003). Stage-adapted radiation field decrease together with further technological development led to reduced relative frequencies of acute/chronic adverse effects and until now was accompanied by lower disease recurrence. The third study design with smallest field size (IF in stage I, locoregional EF in stage II) achieved the best survival outcome at the 5‑year follow-up (overall survival 92.7%, event-free survival 89.5% and lymphoma-specific survival 100.0%). Disease relapse observed in 10 patients. Cumulative incidence of disease-specific death was 1.7% of the followed patients. Primary disease stage associated with lymphoma-specific survival. CONCLUSION Stage-adapted reduction towards IF in gMZL resulted in favorable adverse effects, local control and survival rates. These results support further decreases in modern RT of gMZL.
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Affiliation(s)
- Gabriele Reinartz
- Department of Radiation Oncology, University Hospital of Münster, Building A1, Albert Schweitzer Campus 1, 48149, Münster, Germany.
| | - Regina P Pyra
- Department of Radiation Oncology, University Hospital of Münster, Building A1, Albert Schweitzer Campus 1, 48149, Münster, Germany
| | - Georg Lenz
- Department of Medicine A, Hematology, Oncology and Pneumology, University Hospital of Münster, Münster, Germany
| | - Rüdiger Liersch
- Department of Medicine A, Hematology, Oncology and Pneumology, University Hospital of Münster, Münster, Germany
| | - Georg Stüben
- Department of Radiation Oncology, Hospital Augsburg, Augsburg, Germany
| | - Oliver Micke
- Department of Radiotherapy and Radiation Oncology, Franziskus Hospital Bielefeld, Bielefeld, Germany
| | - Kay Willborn
- Department of Radiotherapy and Radiation Oncology, Pius Hospital Oldenburg, Oldenburg, Germany
| | - Clemens F Hess
- Department of Radiation Oncology, University Hospital of Göttingen, Göttingen, Germany
| | - Andreas Probst
- Department of Gastroenterology, Central Hospital, Augsburg, Germany
| | - Rainer Fietkau
- Department of Radiation Oncology, University of Erlangen, Erlangen, Germany
| | - Ralf Jany
- Department of Radiation Oncology, Saint Marien Hospital, Hamm, Germany
| | - Jürgen Schultze
- Department of Radiation Oncology, University of Schleswig-Holstein, Kiel, Germany
| | - Christian Rübe
- Department of Radiation Oncology, University of Saarland, Homburg, Germany
| | - Carsten Hirt
- Department of Medical Oncology, University of Greifswald, Greifswald, Germany
| | - Wolfgang Fischbach
- Department of Gastroenterology and Oncology, Hospital of Aschaffenburg, Aschaffenburg, Germany
| | - Martin Bentz
- Department of Medical Oncology, Municipal Hospital of Karlsruhe, Karlsruhe, Germany
| | - Severin Daum
- Department of Gastroenterology, University Charité, Berlin, Germany
| | - Christiane Pott
- Department of Medical Oncology, University of Schleswig-Holstein, Kiel, Germany
| | | | - Peter Möller
- Department of Pathology, University of Ulm, Ulm, Germany
| | - Andreas Neubauer
- Department of Medical Oncology, University of Marburg, Marburg, Germany
| | - Martin Wilhelm
- Department of Medical Oncology, Klinikum Nürnberg, Paracelsus Medical University, Nürnberg, Germany
| | - Normann Willich
- Department of Radiation Oncology, University Hospital of Münster, Building A1, Albert Schweitzer Campus 1, 48149, Münster, Germany
| | - Wolfgang E Berdel
- Department of Medicine A, Hematology, Oncology and Pneumology, University Hospital of Münster, Münster, Germany
| | - Hans T Eich
- Department of Radiation Oncology, University Hospital of Münster, Building A1, Albert Schweitzer Campus 1, 48149, Münster, Germany
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9
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Park BS, Lee SH. [Clinical Efficacy of Radiotherapy in Helicobacter pylori Negative or Unresponsive to Eradication Therapy Primary Gastric Mucosa-Associated Lymphoid Tissue Lymphoma]. THE KOREAN JOURNAL OF GASTROENTEROLOGY 2019; 73:19-25. [PMID: 30690954 DOI: 10.4166/kjg.2019.73.1.19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 11/17/2018] [Accepted: 11/23/2018] [Indexed: 12/28/2022]
Abstract
Background/Aims The eradication of Helicobacter pylori (H. pylori) is an effective treatment in gastric mucosa-associated lymphoid tissue (MALT) lymphoma associated with H. pylori infection. However, the treatment strategy in gastric MALT lymphoma patients who are H. pylori-negative or unresponsive to H. pylori eradication therapy remains controversial. In this study, we investigated the clinical efficacy of treatments other than H. pylori eradication therapy in these groups of patients. Methods This was a retrospective single-center study based on the medical records of patients diagnosed with gastric MALT lymphoma at Yeungnam University Medical Center between January 2005 and December 2016. Patients were treated with H. pylori eradication therapy, chemotherapy, or radiotherapy according to their H. pylori infection status and stage of gastric MALT lymphoma. Results Of the 68 eligible patients, 50 were enrolled in the study. Of the 42 patients with H. pylori-positive gastric MALT lymphoma, 36 (81.7%) were treated with H. pylori eradication therapy as primary treatment and 25 (69.4%) achieved a complete response (CR). Patients without a CR after H. pylori eradication therapy (n=11, 30.6%) received radiotherapy as a secondary treatment. Two patients with H. pylori-positive gastric MALT lymphoma and eight with H. pylori-negative gastric MALT lymphoma received radiotherapy as the primary treatment. CR was achieved in all 21 patients treated with radiotherapy as primary or secondary treatment. The 5-year progression-free survival rate after radiotherapy was 92.9%. Conclusions Radiotherapy may be a worthwhile treatment option in patients with H. pylori-negative MALT lymphoma or H. pylori-positive MALT lymphoma that is not responsive to H. pylori eradication therapy.
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Affiliation(s)
- Byung Sam Park
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea
| | - Si Hyung Lee
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea
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10
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Ohkubo Y, Saito Y, Ushijima H, Onishi M, Kazumoto T, Saitoh JI, Kubota N, Kobayashi H, Maseki N, Nishimura Y, Kurosumi M. Radiotherapy for localized gastric mucosa-associated lymphoid tissue lymphoma: long-term outcomes over 10 years. JOURNAL OF RADIATION RESEARCH 2017; 58:537-542. [PMID: 28077625 PMCID: PMC5570133 DOI: 10.1093/jrr/rrw044] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 03/06/2016] [Indexed: 06/06/2023]
Abstract
This study aimed to assess the long-term outcomes of radiotherapy in patients with localized gastric mucosa-associated lymphoid tissue (MALT) lymphoma. Twenty-seven patients with Stage I gastric MALT lymphoma were treated with radiotherapy from 1999 to 2010. The median age was 65 years (range: 31-84). Fifteen patients were Helicobacter pylori-negative. Thirteen patients were treated with definitive radiotherapy alone. The other 14 patients who had refractory or residual disease following a prior treatment received salvage radiotherapy. The median dose of the radiotherapy was 30 Gy in 20 fractions (range: 30-39.5 Gy). The median follow-up period was 121 months (range: 8-176 months). The 5- and 10-year overall survival rates for all patients were 92% and 87%, respectively. No patients died from MALT lymphoma. Three patients died of other diseases at 8, 33 and 74 months after radiotherapy (myocardial infarction, pneumonia and hepatocellular carcinoma, respectively). No cases of local recurrence were observed during the follow-up period. There were no serious late gastric, liver or kidney complications during a median follow-up period of over 10 years. Two patients remain alive with distant metastases: a lung metastasis and an abdominal lymph node metastasis at 104 months and 21 months after radiotherapy, respectively. Excellent long-term local control was observed in patients with localized gastric MALT lymphoma after radiotherapy. However, lifelong follow-up should be conducted to detect cases of late recurrence, especially distant metastases.
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Affiliation(s)
- Yu Ohkubo
- Department of Radiation Oncology, Saitama Cancer Center, 780 Komuro, Ina, kita-adachi, Saitama, 362-0806, Japan
| | - Yoshihiro Saito
- Department of Radiation Oncology, Saitama Cancer Center, 780 Komuro, Ina, kita-adachi, Saitama, 362-0806, Japan
| | - Hiroki Ushijima
- Department of Radiation Oncology, Saitama Cancer Center, 780 Komuro, Ina, kita-adachi, Saitama, 362-0806, Japan
| | - Masahiro Onishi
- Department of Radiation Oncology, Saitama Cancer Center, 780 Komuro, Ina, kita-adachi, Saitama, 362-0806, Japan
| | - Tomoko Kazumoto
- Department of Radiation Oncology, Saitama Cancer Center, 780 Komuro, Ina, kita-adachi, Saitama, 362-0806, Japan
| | - Jun-ichi Saitoh
- Department of Radiation Oncology, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi-shi, Gunma 371-8511, Japan
| | - Nobuko Kubota
- Department of Hematology, Saitama Cancer Center, 780 Komuro, Ina, kita-adachi, Saitama, 362-0806, Japan
| | - Hirofumi Kobayashi
- Department of Hematology, Saitama Cancer Center, 780 Komuro, Ina, kita-adachi, Saitama, 362-0806, Japan
| | - Nobuo Maseki
- Department of Hematology, Saitama Cancer Center, 780 Komuro, Ina, kita-adachi, Saitama, 362-0806, Japan
| | - Yu Nishimura
- Department of Pathology, Saitama Cancer Center, 780 Komuro, Ina, kita-adachi, Saitama, 362-0806, Japan
| | - Masafumi Kurosumi
- Department of Pathology, Saitama Cancer Center, 780 Komuro, Ina, kita-adachi, Saitama, 362-0806, Japan
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11
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Bae SH, Kim DW, Kim MS, Shin MH, Park HC, Lim DH. Radiotherapy for gastric mucosa-associated lymphoid tissue lymphoma: dosimetric comparison and risk assessment of solid secondary cancer. Radiat Oncol J 2017; 35:78-89. [PMID: 28183161 PMCID: PMC5398345 DOI: 10.3857/roj.2016.01942] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 10/13/2016] [Accepted: 11/17/2016] [Indexed: 12/17/2022] Open
Abstract
Purpose To determine the optimal radiotherapy technique for gastric mucosa-associated lymphoid tissue lymphoma (MALToma), we compared the dosimetric parameters and the risk of solid secondary cancer from scattered doses among anterior-posterior/posterior-anterior parallel-opposed fields (AP/PA), anterior, posterior, right, and left lateral fields (4_field), 3-dimensional conformal radiotherapy (3D-CRT) using noncoplanar beams, and intensity-modulated radiotherapy composed of 7 coplanar beams (IMRT_co) and 7 coplanar and noncoplanar beams (IMRT_non). Materials and Methods We retrospectively generated 5 planning techniques for 5 patients with gastric MALToma. Homogeneity index (HI), conformity index (CI), and mean doses of the kidney and liver were calculated from the dose-volume histograms. Applied the Biological Effects of Ionizing Radiation VII report to scattered doses, the lifetime attributable risk (LAR) was calculated to estimate the risk of solid secondary cancer. Results The best value of CI was obtained with IMRT, although the HI varied among patients. The mean kidney dose was the highest with AP/PA, followed by 4_field, 3D-CRT, IMRT_co, and IMRT_non. On the other hand, the mean liver dose was the highest with 4_field and the lowest with AP/PA. Compared with 4_field, the LAR for 3D-CRT decreased except the lungs, and the LAR for IMRT_co and IMRT_non increased except the lungs. However, the absolute differences were much lower than <1%. Conclusion Tailored RT techniques seem to be beneficial because it could achieve adjacent organ sparing with very small and clinically irrelevant increase of secondary solid cancer risk compared to the conventional techniques.
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Affiliation(s)
- Sun Hyun Bae
- Department of Radiation Oncology, Soonchunhyang University Bucheon Hospital, Bucheon, Korea.,Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Dong Wook Kim
- Department of Radiation Oncology, Kyung Hee University Hospital at Gangdong, Seoul, Korea
| | - Mi-Sook Kim
- Department of Radiation Oncology, Korea Institute of Radiological & Medical Sciences, Seoul, Korea
| | - Myung-Hee Shin
- Department of Social and Preventive Medicine, Sungkyunkwan University School of Medicine, Suwon, Korea
| | - Hee Chul Park
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Do Hoon Lim
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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12
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Jung JT. [Gastric Mucosa-associated Lymphoid Tissue Lymphoma Based on Outcome of Domestic Treatment]. THE KOREAN JOURNAL OF GASTROENTEROLOGY 2016; 68:175-178. [PMID: 27780940 DOI: 10.4166/kjg.2016.68.4.175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Gastric mucosa-associated lymphoid tissue (MALT) lymphoma is associated with Helicobacter pylori infection. H. pylori eradication can be performed as a primary therapy regardless of H. pylori status. In Korea, six articles were published about low-grade gastric MALT lymphoma with H. pylori. Complete regression rate after H. pylori eradication is reported at 74.5% to 94.4%. Radiotherapy results in favorable clinical long-term outcomes in patients with early-stage gastric MALT lymphoma who fail H. pylori eradication therapy and those who are H. pylori negative. Chemotherapy could be reserved for patients with metastatic or high-grade lymphoma. In gastric MALT lymphoma, patients with polypoid type on initial endoscopy had a higher likelihood of recurrence than those with diffuse infiltration or ulceration types. The depth of invasion, location of lesions, and chromosomal abnormality with t(11;18) together are predictive factors for failure to remission by H. pylori eradication.
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Affiliation(s)
- Jin Tae Jung
- Department of Internal Medicine, Catholic University of Daegu School of Medicine, Daegu, Korea
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13
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Lim HW, Kim TH, Choi IJ, Kim CG, Lee JY, Cho SJ, Eom HS, Moon SH, Kim DY. Radiation therapy for gastric mucosa-associated lymphoid tissue lymphoma: dose-volumetric analysis and its clinical implications. Radiat Oncol J 2016; 34:193-201. [PMID: 27730803 PMCID: PMC5066445 DOI: 10.3857/roj.2016.01865] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Revised: 07/27/2016] [Accepted: 08/04/2016] [Indexed: 12/29/2022] Open
Abstract
Purpose To assess the clinical outcomes of radiotherapy (RT) using two-dimensional (2D) and three-dimensional conformal RT (3D-CRT) for patients with gastric mucosa-associated lymphoid tissue (MALT) lymphoma to evaluate the effectiveness of involved field RT with moderate-dose and to evaluate the benefit of 3D-CRT comparing with 2D-RT. Materials and Methods Between July 2003 and March 2015, 33 patients with stage IE and IIE gastric MALT lymphoma received RT were analyzed. Of 33 patients, 17 patients (51.5%) were Helicobacter pylori (HP) negative and 16 patients (48.5%) were HP positive but refractory to HP eradication (HPE). The 2D-RT (n = 14) and 3D-CRT (n = 19) were performed and total dose was 30.6 Gy/17 fractions. Of 11 patients who RT planning data were available, dose-volumetric parameters between 2D-RT and 3D-CRT plans was compared. Results All patients reached complete remission (CR) eventually and median time to CR was 3 months (range, 1 to 15 months). No local relapse occurred and one patient died with second primary malignancy. Tumor response, survival, and toxicity were not significantly different between 2D-RT and 3D-CRT (p > 0.05, each). In analysis for dose-volumetric parameters, Dmax and CI for PTV were significantly lower in 3D-CRT plans than 2D-RT plans (p < 0.05, each) and Dmean and V15 for right kidney and Dmean for left kidney were significantly lower in 3D-CRT than 2D-RT (p < 0.05, each). Conclusion Our data suggested that involved field RT with moderate-dose for gastric MALT lymphoma could be promising and 3D-CRT could be considered to improve the target coverage and reduce radiation dose to the both kidneys.
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Affiliation(s)
- Hyeon Woo Lim
- Proton Therapy Center, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Tae Hyun Kim
- Proton Therapy Center, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Il Ju Choi
- Center for Gastric Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Chan Gyoo Kim
- Center for Gastric Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Jong Yeul Lee
- Center for Gastric Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Soo Jeong Cho
- Center for Gastric Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Hyeon Seok Eom
- Center for Specific Organs Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Sung Ho Moon
- Proton Therapy Center, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - Dae Yong Kim
- Proton Therapy Center, Research Institute and Hospital, National Cancer Center, Goyang, Korea
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14
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Evaluation of selected interleukins in patients with different gastric neoplasms: a preliminary report. Sci Rep 2015; 5:14382. [PMID: 26486258 PMCID: PMC4613562 DOI: 10.1038/srep14382] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 08/21/2015] [Indexed: 12/25/2022] Open
Abstract
Abnormal interactions between cytokines may be an overlooked mechanism linking the development of different types of gastric neoplasms. In this study a comprehensive analysis of the systemic levels of interleukins (IL-1,IL-6, IL-8,IL-10 and IL-12) was performed in 75 patients with different gastric neoplasms (cancer, gastrointestinal stromal tumors, neuroendocrine neoplasms, lymphomas) and 40 healthy volunteers. Patients with gastric cancer (GC) have significantly higher IL-6 levels, and lower IL-8 and IL-10 concentrations, in comparison to controls and patients with other gastric neoplasms. Analogous results were observed in terms of IL-6/IL-8 and IL-6/IL-10 ratios, whose values were also higher in GC patients. In GC patients no associations were detected between the systemic levels/values of interleukins (ratios) and TNM staging. IL-6, IL-10, IL-6/IL-8 and IL-6/IL-10 ratios appeared to hold diagnostic potential in confirming/excluding the presence of GC. Their sensitivity/specificity in GC detection/exclusion was approximately 54–72%. In conclusion, disturbed systemic biochemical balance in multiple interleukins exists at the earliest stages of and appears to be specific to GC. The interleukin ratios proposed here seem to be more promising indicators of GC in humans than direct systemic levels of interleukins, and probably possess the potential to be applied as a supporting factor for techniques routinely used.
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15
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Asano N, Iijima K, Koike T, Imatani A, Shimosegawa T. Helicobacter pylori-negative gastric mucosa-associated lymphoid tissue lymphomas: A review. World J Gastroenterol 2015; 21:8014-8020. [PMID: 26185372 PMCID: PMC4499343 DOI: 10.3748/wjg.v21.i26.8014] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 04/30/2015] [Accepted: 06/10/2015] [Indexed: 02/06/2023] Open
Abstract
Since Isaacson and Wright first reported on the extra-nodal marginal zone B-cell lymphoma of the stomach in 1983, following studies have clarified many aspects of this disease. We now know that the stomach is the most affected organ by this disease, and approximately 90% of gastric mucosa-associated lymphoid tissue (MALT) lymphomas are related to Helicobacter pylori (H. pylori) infection. This implies that approximately 10% of gastric MALT lymphomas occur independent of H. pylori infection. The pathogenesis of these H. pylori-negative gastric MALT lymphomas remains unclear. To date, there have been several speculations. One possibility is that genetic alterations result in nuclear factor-kappa B (NF-κB) activation. Among these alterations, t(11;18)(q21;q21) is more frequently observed in H. pylori-negative gastric MALT lymphomas, and such translocation results in the synthesis of fusion protein API2-MALT1, which causes canonical and noncanonical NF-κB activation. Another possibility is infection with bacteria other than H. pylori. This could explain why H. pylori eradication therapy can cure some proportions of H. pylori-negative gastric MALT lymphoma patients, although the bacteria responsible for MALT lymphomagenesis are yet to be defined. Recent advances in endoscopy suggest magnifying endoscopy with narrow band imaging as a useful tool for both detecting gastric MALT lymphoma lesions and judging the response to treatment. A certain proportion of H. pylori-negative gastric MALT lymphoma patients respond to eradication therapy; hence, H. pylori eradication therapy could be considered as a first-line treatment for gastric MALT lymphomas regardless of their H. pylori infection status.
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MESH Headings
- Animals
- Anti-Bacterial Agents/therapeutic use
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Gastroscopy
- Genetic Predisposition to Disease
- Helicobacter Infections/complications
- Helicobacter Infections/diagnosis
- Helicobacter Infections/drug therapy
- Helicobacter Infections/microbiology
- Helicobacter pylori/drug effects
- Helicobacter pylori/isolation & purification
- Humans
- Lymphoma, B-Cell, Marginal Zone/diagnosis
- Lymphoma, B-Cell, Marginal Zone/etiology
- Lymphoma, B-Cell, Marginal Zone/genetics
- Lymphoma, B-Cell, Marginal Zone/metabolism
- Lymphoma, B-Cell, Marginal Zone/microbiology
- Lymphoma, B-Cell, Marginal Zone/therapy
- Phenotype
- Predictive Value of Tests
- Proton Pump Inhibitors/therapeutic use
- Risk Factors
- Signal Transduction
- Stomach Neoplasms/diagnosis
- Stomach Neoplasms/etiology
- Stomach Neoplasms/genetics
- Stomach Neoplasms/metabolism
- Stomach Neoplasms/microbiology
- Stomach Neoplasms/therapy
- Treatment Outcome
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