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da Silva Lawisch GK, Biolchi V, Kaufmann G, Nicolai G, Capitaneo E, Rosembach TR, Zang J, Brum IS, Chies JAB. The role of FASL, BCL-2 and BAX polymorphisms in brazilian patients with prostate cancer and benign prostatic hyperplasia. Mol Biol Rep 2022; 49:9445-9451. [DOI: 10.1007/s11033-022-07805-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 06/22/2022] [Accepted: 07/15/2022] [Indexed: 11/30/2022]
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Liu B, Li G, Yang J, Li X, Wang H, Yang J, Wen H, He F. The mechanism of immune related signal pathway Egr2-FasL-Fas in transcription regulation and methylated modification of Paralichthys olivaceus under acute hypoxia stress. FISH & SHELLFISH IMMUNOLOGY 2022; 123:152-163. [PMID: 35219829 DOI: 10.1016/j.fsi.2022.02.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 02/04/2022] [Accepted: 02/18/2022] [Indexed: 06/14/2023]
Abstract
Apoptosis genes Egr2, Fas and FasL are related to immune responses. However, the mechanism of these genes inducing apoptosis in fish are still not very clear. An acute hypoxia treatment (1.73 ± 0.06 mg/L) for 24 h was carried out on Japanese flounder (Paralichthys olivaceus). The increasingly dense apoptotic signals at 3 h, 6 h, 12 h by TUNEL in skeletal muscle indicated that hypoxia could quickly affect muscle growth and development. Furthermore, we concluded that the Egr2-FasL-Fas signal pathway, which was located at the upstream of apoptotic executor protein caspases, was related to the apoptosis by quantitative real-time PCR, protein concentration detection in ELISA and double gene in situ hybridization methods. The mechanism of the pathway was researched in transcription regulation and epigenetic modification by dual-luciferase reporter assay and bisulfite modified method, respectively. Egr2, as a transcription factor, could up-regulate the expression of FasL gene. And its binding site was mainly between -479 to -1 of FasL gene promoter. The 5th CpG dinucleotides (-514) methylation levels in FasL gene were significantly affected by hypoxia, and they were negatively correlated with its expressions. These suggested that the -514 site may be a very important site to regulate the FasL gene expression. Above results, we concluded that hypoxia activated the immune related signal pathway Egr2-FasL-Fas to induced skeletal muscle apoptosis to affect growth and development of Japanese flounder. The study revealed the mechanism of hypoxia induced apoptosis, which could provide a reference for fish immunity and aquaculture management.
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Affiliation(s)
- Binghua Liu
- Key Laboratory of Mariculture, Ocean University of China, Ministry of Education, Qingdao, 266003, PR China
| | - Guangling Li
- Key Laboratory of Mariculture, Ocean University of China, Ministry of Education, Qingdao, 266003, PR China
| | - Jun Yang
- Key Laboratory of Mariculture, Ocean University of China, Ministry of Education, Qingdao, 266003, PR China
| | - Xiaohui Li
- Key Laboratory of Mariculture, Ocean University of China, Ministry of Education, Qingdao, 266003, PR China
| | - Hao Wang
- Key Laboratory of Mariculture, Ocean University of China, Ministry of Education, Qingdao, 266003, PR China
| | - Jing Yang
- Key Laboratory of Mariculture, Ocean University of China, Ministry of Education, Qingdao, 266003, PR China
| | - Haishen Wen
- Key Laboratory of Mariculture, Ocean University of China, Ministry of Education, Qingdao, 266003, PR China.
| | - Feng He
- Key Laboratory of Mariculture, Ocean University of China, Ministry of Education, Qingdao, 266003, PR China.
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Abstract
Prostate cancer is a common malignancy in men worldwide and it is known that oxidative stress is a risk factor for cancer development. A common functional haptoglobin (Hp) polymorphism, originating from a duplication of a gene segment spanning over two exons, results in three distinct phenotypes with different anti-oxidative capacities: Hp1-1, Hp1-2, and Hp2-2. The aim of the study was to investigate the relationship between this Hp polymorphism and prostate cancer mortality. The study was performed on 690 patients with histologically confirmed prostate cancer, recruited between January 2004 and January 2007. Hp genotypes were determined by a TaqMan fluorogenic 5′-exonuclease assay. Hp1-1 was present in 76 (11%), Hp1-2 in 314 (45.5%), and Hp2-2 in 300 (43.5%) patients. During a median follow-up of 149 months, 251 (35.3%) patients died. Hp genotypes were not significantly associated with higher overall mortality (HR 1.10; 95% CI 0.91–1.33; p = 0.34). This remained similar in a multivariate analysis including age at diagnosis, androgen deprivation therapy, and risk group based on PSA level, GS, and T stage (HR 1.11; 95% CI 0.91–1.34; p = 0.30). We conclude that the common Hp polymorphism does not seem to be associated with overall mortality in prostate cancer patients.
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Zheng Y, Gao W, Spratt DE, Sun Y, Xing L. Management of gastrointestinal perforation related to radiation. Int J Clin Oncol 2020; 25:1010-1015. [DOI: 10.1007/s10147-020-01662-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 03/12/2020] [Indexed: 12/15/2022]
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Renner W, Krenn-Pilko S, Gruber HJ, Herrmann M, Langsenlehner T. Relative telomere length and prostate cancer mortality. Prostate Cancer Prostatic Dis 2018; 21:579-583. [PMID: 30082901 DOI: 10.1038/s41391-018-0068-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 04/23/2018] [Accepted: 05/03/2018] [Indexed: 12/24/2022]
Abstract
PURPOSE Telomeres are essential for the maintenance of chromosomal integrity and telomere length has been associated with cancer risk and development. Aim of the present study was to analyze the prognostic value of leukocyte relative telomere (RTL) length in long-term prostate cancer (PCa) mortality. METHODS Blood samples of PCa patients were obtained before initiation of radiotherapy. RTL of peripheral blood leukocytes was determined by a quantitative polymerase chain reaction method in 533 patients with PCa. Main outcome was overall mortality. RESULTS During a median follow-up time of 149 months, 188 (35.3%) patients died. In a univariate Cox regression analysis, RTL quartiles (longer RTL) were significantly associated with higher overall mortality (hazard ration (HR) = 1.20; 95% confidence interval (CI): 1.05-1.36; p = 0.006). In a multivariate Cox regression model including age at diagnosis, androgen deprivation therapy, and risk group (based on PSA level, GS, and T stage), RTL quartiles remained a significant predictor of higher overall mortality (HR = 1.22; 95% CI: 1.07-1.39; p = 0.003). CONCLUSIONS Longer leukocyte RTL predicts higher overall mortality in patients with PCa.
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Affiliation(s)
- Wilfried Renner
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria.
| | - Sabine Krenn-Pilko
- Department of Therapeutic Radiology and Oncology, Medical University of Graz, Graz, Austria
| | - Hans-Jürgen Gruber
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - Markus Herrmann
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria
| | - Tanja Langsenlehner
- Department of Therapeutic Radiology and Oncology, Medical University of Graz, Graz, Austria
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Zhang YF, Zeng XL, Lu HW, Ji H, Lu L, Liu PD, Hong RF, Li YM. Association between KIF1B (rs17401966) polymorphism and hepatocellular carcinoma susceptibility: a meta-analysis. Onco Targets Ther 2018; 11:3225-3235. [PMID: 29881295 PMCID: PMC5985779 DOI: 10.2147/ott.s162205] [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] [Indexed: 11/30/2022] Open
Abstract
Introduction The results of the earlier published studies on the association between KIF1B (rs17401966) polymorphism and hepatocellular carcinoma (HCC) risk are inconclusive. Hence, we performed this meta-analysis to evaluate the relationship between KIF1B (rs17401966) polymorphism and HCC risk. Methods Databases including PubMed, Web of Science and the Cochrane Library and bibliographies of relevant papers were screened to identify relevant studies published up to March 25, 2018. Pooled ORs and 95% CIs were calculated to evaluate the association. The subgroup analysis was conducted based on ethnicity, age, region and environment. A total of 19 studies from 11 eligible articles published from 2010 to 2016, with 8,741 cases and 10,812 controls, were included. Results The pooled results indicated that the association between KIF1B (rs17401966) polymorphism and the decreased HCC risk was significant. Subgroup analysis stratified by ethnicity showed the same association in Chinese, but not in non-Chinese population. When stratified by age, both old and young patients showed a decrease in HCC risk. When stratified by region, we detected the same association in Chinese in southern China. Similarly when stratified by environment, we observed the same association in Chinese in inland areas; however, no statistically significant association was observed in those in coastal areas. Conclusion This meta-analysis suggested that KIF1B (rs17401966) polymorphism could decrease HCC risk in Chinese and in overall population, but not in non-Chinese. This association remained significant in Chinese in southern China and inland areas, but not in those in northern and central China and coastal areas. Further large-scale multicenter studies are warranted to confirm these findings.
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Affiliation(s)
- Ya-Fei Zhang
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Xian-Ling Zeng
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Hong-Wei Lu
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Hong Ji
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Le Lu
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Peng-di Liu
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Ruo-Feng Hong
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yi-Ming Li
- Department of General Surgery, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
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Delobel JB, Gnep K, Ospina JD, Beckendorf V, Chira C, Zhu J, Bossi A, Messai T, Acosta O, Castelli J, de Crevoisier R. Nomogram to predict rectal toxicity following prostate cancer radiotherapy. PLoS One 2017. [PMID: 28640871 PMCID: PMC5480987 DOI: 10.1371/journal.pone.0179845] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND To identify predictors of acute and late rectal toxicity following prostate cancer radiotherapy (RT), while integrating the potential impact of RT technique, dose escalation, and moderate hypofractionation, thus enabling us to generate a nomogram for individual prediction. METHODS In total, 972 patients underwent RT for localized prostate cancer, to a total dose of 70 Gy or 80 Gy, using two different fractionations (2 Gy or 2.5 Gy/day), by means of several RT techniques (3D conformal RT [3DCRT], intensity-modulated RT [IMRT], or image-guided RT [IGRT]). Multivariate analyses were performed to identify predictors of acute and late rectal toxicity. A nomogram was generated based on the logistic regression model used to predict the 3-year rectal toxicity risk, with its accuracy assessed by dividing the cohort into training and validation subgroups. RESULTS Mean follow-up for the entire cohort was 62 months, ranging from 6 to 235. The rate of acute Grade ≥2 rectal toxicity was 22.2%, decreasing when combining IMRT and IGRT, compared to 3DCRT (RR = 0.4, 95%CI: 0.3-0.6, p<0.01). The 5-year Grade ≥2 risks for rectal bleeding, urgency/tenesmus, diarrhea, and fecal incontinence were 9.9%, 4.5%, 2.8%, and 0.4%, respectively. The 3-year Grade ≥2 risk for overall rectal toxicity increased with total dose (p<0.01, RR = 1.1, 95%CI: 1.0-1.1) and dose per fraction (2Gy vs. 2.5Gy) (p = 0.03, RR = 3.3, 95%CI: 1.1-10.0), and decreased when combining IMRT and IGRT (RR = 0.50, 95% CI: 0.3-0.8, p<0.01). Based on these three parameters, a nomogram was generated. CONCLUSIONS Dose escalation and moderate hypofractionation increase late rectal toxicity. IMRT combined with IGRT markedly decreases acute and late rectal toxicity. Performing combined IMRT and IGRT can thus be envisaged for dose escalation and moderate hypofractionation. Our nomogram predicts the 3-year rectal toxicity risk by integrating total dose, fraction dose, and RT technique.
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Affiliation(s)
- Jean-Bernard Delobel
- Dept. of Gastroenterology, Centre Hospitalier Universitaire Pontchaillou, Rennes, France
| | - Khemara Gnep
- LTSI, Inserm U1099, Université de Rennes 1, Rennes, France
- Centre Eugene Marquis, Rennes, France
- * E-mail:
| | - Juan David Ospina
- LTSI, Inserm U1099, Université de Rennes 1, Rennes, France
- Escuela de Estadística, Universidad Nacional de Colombia, Medellin, Colombia
| | | | | | - Jian Zhu
- LTSI, Inserm U1099, Université de Rennes 1, Rennes, France
- Laboratory of Image Science and Technology, Southeast University, Nanjing, PR China
- Centre de Recherche en Information Biomédicale Sino-Français (CRIBs), Rennes, France
| | | | | | - Oscar Acosta
- LTSI, Inserm U1099, Université de Rennes 1, Rennes, France
| | - Joël Castelli
- LTSI, Inserm U1099, Université de Rennes 1, Rennes, France
- Centre Eugene Marquis, Rennes, France
| | - Renaud de Crevoisier
- LTSI, Inserm U1099, Université de Rennes 1, Rennes, France
- Centre Eugene Marquis, Rennes, France
- Centre de Recherche en Information Biomédicale Sino-Français (CRIBs), Rennes, France
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Renner W, Langsenlehner U, Krenn-Pilko S, Eder P, Langsenlehner T. BCL2 genotypes and prostate cancer survival. Strahlenther Onkol 2017; 193:466-471. [PMID: 28396899 PMCID: PMC5438415 DOI: 10.1007/s00066-017-1126-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 03/22/2017] [Indexed: 12/29/2022]
Abstract
Purpose The antiapoptotic B‑cell lymphoma 2 (BCL2) gene is a key player in cancer development and progression. A functional single-nucleotide polymorphism (c.-938C>A, rs2279115) in the inhibitory P2 BCL2 gene promoter has been associated with clinical outcomes in various types of cancer. Aim of the present study was to analyze the role of BCL2-938C>A genotypes in prostate cancer mortality. Methods The association between BCL2-938C>A (rs2279115) genotypes and prostate cancer outcome was studied within the prospective PROCAGENE study comprising 702 prostate cancer patients. Results During a median follow-up time of 92 months, 120 (17.1%) patients died. A univariate Cox regression model showed a significant association of the CC genotype with reduced cancer-specific survival (CSS; hazard ratio, HR, 2.13, 95% confidence interval, CI, 1.10–4.12; p = 0.024) and overall survival (OS; HR 2.34, 95% CI 1.58–3.47; p < 0.001). In a multivariate Cox regression model including age at diagnosis, risk group, and androgen deprivation therapy, the CC genotype remained a significant predictor of poor CSS (HR 2.05, 95% CI 1.05–3.99; p = 0.034) and OS (HR 2.25, 95% CI 1.51–3.36; p < 0.001). Conclusion This study provides evidence that the homozygous BCL2-938 CC genotype is associated with OS and C in prostate cancer patients.
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Affiliation(s)
- Wilfried Renner
- Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, 8036, Graz, Austria.
| | - Uwe Langsenlehner
- Division of Internal Medicine, GKK Outpatient Department, Graz, Austria
| | - Sabine Krenn-Pilko
- Department of Therapeutic Radiology and Oncology, Medical University of Graz, Graz, Austria
| | - Petra Eder
- Department of Internal Medicine I, University Hospital Würzburg, Würzburg, Germany
| | - Tanja Langsenlehner
- Department of Therapeutic Radiology and Oncology, Medical University of Graz, Graz, Austria
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ZHANG DAYING, WANG ZHIJIAN, YU YANBO, ZHANG YONG, ZHANG XUEXUE. Role of microRNA-210 in human intervertebral disc degeneration. Exp Ther Med 2016; 11:2349-2354. [PMID: 27284319 PMCID: PMC4887766 DOI: 10.3892/etm.2016.3176] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 01/18/2016] [Indexed: 12/14/2022] Open
Abstract
The present study aimed to investigate the role of microRNA (miR)-210 in the development of intervertebral disc degeneration (IDD). Human nucleus pulposus (NP) samples were collected from patients with scoliosis and IDD (n=12 each) as the scoliosis control and IDD groups, respectively. The expression levels of miR-210 were detected using reverse-transcription quantitative polymerase chain reaction. In vitro overexpression and knockdown of miR-210 in human NP cells were achieved by transfection of NP cells with lentiviral pre-miR-210 and antagomiR-210, respectively. The protein expression levels of homeobox A9 (HOXA9) were then detected in NP cells with modulated miR-210 using western blot analysis. Flow cytometry with allophycocyanin-Annexin V/7 and 7-aminoactinomycin D staining was also used to detect the proportion of NP cells with modulated miR-210 undergoing apoptosis. The current study revealed that the miR-210 expression was decreased in patients with IDD compared with that of the scoliosis control group (P<0.05). Furthermore, the upregulation of miR-210 with pre-miR-210 led to the repression of HOXA9. The HOXA9 level was significantly lower in these cells compared with that of NP cells treated with a corresponding negative sequence (P<0.05). Knockdown of miR-210 with antagomiR-210 resulted in upregulation of HOXA9 in NP cells, determined as the level of HOXA9 was significantly higher than that of NP cells treated with a negative sequence (P<0.05). The proportion of apoptotic NP cells also significantly decreased following treatment with pre-miR-210 compared with the scoliosis control group (12.1±1.43 vs. 23.8±1.22%, respectively; P<0.05). In conclusion, downregulation of miR-210 may promote Fas-mediated apoptosis in human IDD by regulating the expression of HOXA9. This indicates that miR-210 may be closely associated with the development of IDD and may act as a novel target in IDD treatment.
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Affiliation(s)
- DA-YING ZHANG
- Department of Pain Management, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - ZHI-JIAN WANG
- Department of Pain Management, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - YAN-BO YU
- Department of Pain Management, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - YONG ZHANG
- Department of Pain Management, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - XUE-XUE ZHANG
- Department of Pain Management, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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Epoxyeicosatrienoic acid analogue mitigates kidney injury in a rat model of radiation nephropathy. Clin Sci (Lond) 2016; 130:587-99. [PMID: 26772189 DOI: 10.1042/cs20150778] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 01/15/2016] [Indexed: 12/19/2022]
Abstract
Arachidonic acid is metabolized to epoxyeicosatrienoic acids (EETs) by CYP epoxygenases, and EETs are kidney protective in multiple pathologies. We determined the ability of an EET analogue, EET-A, to mitigate experimental radiation nephropathy. The kidney expression of the EET producing enzyme CYP2C11 was lower in rats that received total body irradiation (TBI rat) compared with non-irradiated control. At 12 weeks after TBI, the rats had higher systolic blood pressure and impaired renal afferent arteriolar function compared with control, and EET-A or captopril mitigated these abnormalities. The TBI rats had 3-fold higher blood urea nitrogen (BUN) compared with control, and EET-A or captopril decreased BUN by 40-60%. The urine albumin/creatinine ratio was increased 94-fold in TBI rats, and EET-A or captopril attenuated that increase by 60-90%. In TBI rats, nephrinuria was elevated 30-fold and EET-A or captopril decreased it by 50-90%. Renal interstitial fibrosis, tubular and glomerular injury were present in the TBI rats, and each was decreased by EET-A or captopril. We further demonstrated elevated renal parenchymal apoptosis in TBI rats, which was mitigated by EET-A or captopril. Additional studies revealed that captopril or EET-A mitigated renal apoptosis by acting on the p53/Fas/FasL (Fas ligand) apoptotic pathway. The present study demonstrates a novel EET analogue-based strategy for mitigation of experimental radiation nephropathy by improving renal afferent arteriolar function and by decreasing renal apoptosis.
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Pixberg C, Koch R, Eich HT, Martinsson U, Kristensen I, Matuschek C, Kortmann RD, Pohl F, Elsayad K, Christiansen H, Willich N, Lindh J, Steinmann D. Acute Toxicity Grade 3 and 4 After Irradiation in Children and Adolescents: Results From the IPPARCA Collaboration. Int J Radiat Oncol Biol Phys 2015; 94:792-9. [PMID: 26972652 DOI: 10.1016/j.ijrobp.2015.12.353] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 12/03/2015] [Accepted: 12/14/2015] [Indexed: 10/22/2022]
Abstract
PURPOSE In the context of oncologic therapy for children, radiation therapy is frequently indicated. This study identified the frequency of and reasons for the development of high-grade acute toxicity and possible sequelae. MATERIALS AND METHODS Irradiated children have been prospectively documented since 2001 in the Registry for the Evaluation of Side Effects After Radiation in Childhood and Adolescence (RiSK) database in Germany and since 2008 in the registry for radiation therapy toxicity (RADTOX) in Sweden. Data were collected using standardized, published forms. Toxicity classification was based on Radiation Therapy Oncology Group/European Organization for Research and Treatment of Cancer criteria. RESULTS As of June 2013, 1500 children have been recruited into the RiSK database and 485 into the RADTOX registry leading to an analysis population of 1359 patients (age range 0-18). A total of 18.9% (n=257) of all investigated patients developed high-grade acute toxicity (grades 3/4). High-grade toxicity of the bone marrow was documented for 63.8% (n=201) of those patients, oral mucositis for 7.6% (n=24), and dermatitis for 7.6% (n=24). Patients with high-grade acute toxicity received concomitant chemotherapy more frequently (56%) than patients with no or lower acute toxicity (31.5%). In multivariate analyses, concomitant chemotherapy, diagnosis of Ewing sarcoma, and total radiation dose showed a statistically noticeable effect (P≤.05) on acute toxicity, whereas age, concomitant chemotherapy, Hodgkin lymphoma, Ewing sarcoma, total radiation dose, and acute toxicity influenced the time until maximal late toxicity. CONCLUSIONS Generally, high-grade acute toxicity after irradiation in children and adolescence occurs in a moderate proportion of patients (18.9%). As anticipated, the probability of acute toxicity appeared to depend on the prescribed dose as well as concomitant chemotherapy. The occurrence of chronic toxicity correlates with the prior acute toxicity grade. Age seems to influence the time until maximal late toxicity but not the development of acute toxicity.
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Affiliation(s)
- Caroline Pixberg
- Department of Radiation Oncology, University Hospital of Muenster, Muenster, Germany
| | - Raphael Koch
- Institute of Biostatistics and Clinical Research, University of Muenster, Muenster, Germany
| | - Hans Theodor Eich
- Department of Radiation Oncology, University Hospital of Muenster, Muenster, Germany; Department of Radiation Oncology, University of Koeln, Koeln, Germany.
| | - Ulla Martinsson
- Department of Oncology, University Hospital, Uppsala, Sweden
| | - Ingrid Kristensen
- Department of Radiation Physics, Skåne University Hospital, Lund, Sweden
| | - Christiane Matuschek
- Department of Radiation Oncology, University Hospital of Duesseldorf, Duesseldorf, Germany
| | - Rolf-Dieter Kortmann
- Department of Radiation Oncology, University Hospital of Leipzig, Leipzig, Germany
| | - Fabian Pohl
- Department of Radiation Oncology, University of Regensburg, Regensburg, Germany
| | - Khaled Elsayad
- Department of Radiation Oncology, University Hospital of Muenster, Muenster, Germany
| | - Hans Christiansen
- Department of Radiation Oncology, Medical School Hannover, Hannover, Germany
| | - Normann Willich
- Department of Radiation Oncology, University Hospital of Muenster, Muenster, Germany
| | - Jack Lindh
- Department of Radiation Sciences, Umeå University, Umeå, Sweden
| | - Diana Steinmann
- Department of Radiation Oncology, University Hospital of Muenster, Muenster, Germany; Department of Radiation Oncology, Medical School Hannover, Hannover, Germany
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Guo Z, Shu Y, Zhou H, Zhang W, Wang H. Radiogenomics helps to achieve personalized therapy by evaluating patient responses to radiation treatment. Carcinogenesis 2015; 36:307-17. [PMID: 25604391 DOI: 10.1093/carcin/bgv007] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Radiogenomics is the whole genome application of radiogenetics, which focuses on uncovering the underlying genetic causes of individual variation in sensitivity to radiation. There is a growing consensus that radiosensitivity is a complex, inherited polygenic trait, dependent on the interaction of many genes involved in multiple cell processes. An understanding of the genes involved in processes such as DNA damage response and oxidative stress response, has evolved toward examination of how genetic variants, most often, single nucleotide polymorphisms (SNPs), may influence interindividual radioresponse. Many experimental approaches, such as candidate SNP association studies, genome-wide association studies and massively parallel sequencing are being proposed to address these questions. We present a review focusing on recent advances in association studies of SNPs to radiotherapy response and discuss challenges and opportunities for further studies. We also highlight the clinical perspective of radiogenomics in the future of personalized treatment in radiation oncology.
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Affiliation(s)
- Zhen Guo
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University and Institute of Clinical Pharmacology, Central South University; Hunan Key Laboratory of Pharmacogenetics, Changsha 410008, P.R. China
| | - Yan Shu
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, MD 21201, USA and
| | - Honghao Zhou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University and Institute of Clinical Pharmacology, Central South University; Hunan Key Laboratory of Pharmacogenetics, Changsha 410008, P.R. China
| | - Wei Zhang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University and Institute of Clinical Pharmacology, Central South University; Hunan Key Laboratory of Pharmacogenetics, Changsha 410008, P.R. China;
| | - Hui Wang
- Department of Radiation Oncology, Hunan Provincial Tumor Hospital & Affiliated Tumor Hospital of Xiangya Medical School, Central South University, Changsha 410013, P.R. China
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Schiffmann J, Lesmana H, Tennstedt P, Beyer B, Boehm K, Platz V, Tilki D, Salomon G, Petersen C, Krüll A, Graefen M, Schwarz R. Additional androgen deprivation makes the difference. Strahlenther Onkol 2014; 191:330-7. [DOI: 10.1007/s00066-014-0794-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Accepted: 11/14/2014] [Indexed: 10/24/2022]
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Association between SNPs in defined functional pathways and risk of early or late toxicity as well as individual radiosensitivity. Strahlenther Onkol 2014; 191:59-66. [DOI: 10.1007/s00066-014-0741-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Accepted: 07/16/2014] [Indexed: 12/13/2022]
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Dörr W, Herrmann T, Baumann M. Application of organ tolerance dose-constraints in clinical studies in radiation oncology. Strahlenther Onkol 2014; 190:621-4, 626-7. [PMID: 24604558 DOI: 10.1007/s00066-014-0613-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Accepted: 01/30/2014] [Indexed: 02/07/2023]
Abstract
In modern radiation oncology, tolerance dose-constraints for organs at risk (OAR) must be considered for treatment planning, but particularly in order to design clinical studies. Tolerance dose tables, however, only address one aspect of the therapeutic ratio of any clinical study, i.e., the limitation of adverse events, but not the desired potential improvement in the tumor effect of a novel treatment strategy. A sensible application of "tolerance doses" in a clinical situation requires consideration of various critical aspects addressed here: definition of tolerance dose, specification of an endpoint/symptom, consideration of radiation quality and irradiation protocol, exposed volume and dose distribution, and patient-related factors of radiosensitivity. The currently most comprehensive estimates of OAR radiation tolerance are in the QUANTEC compilations (2010). However, these tolerance dose values must only be regarded as a rough orientation and cannot answer the relevant question for the patients, i.e., if the study can achieve a therapeutic advantage; this can obviously be answered only by the final scientific analysis of the study results. Despite all limitations, the design of clinical studies should currently refer to the QUANTEC values for appreciation of the risk of complications, if needed supplemented by one's own data or further information from the literature. The implementation of a consensus on the safety interests of the patients and on an application and approval process committed to progress in medicine, with transparent quality-assuring requirements with regard to the structural safeguarding of the study activities, plays a central role in clinical research in radiation oncology.
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Affiliation(s)
- Wolfgang Dörr
- Dept. of Radiation Oncology/Christian Doppler Laboratory for Medical Radiation Research for Radiation Oncology, Comprehensive Cancer Center, Medical University/AKH Vienna, Waehringer Guertel 18-20, 1090, Vienna, Austria,
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