Radiation research最新文献_第10页

Biology of Exfoliation of Plasma Membrane-Derived Vesicles and the Radiation Response: Historical Background, Applications in Biodosimetry and Cell-Free Therapeutics, and Quantal Mechanisms for Their Release and Function with Implications for Space Travel. 等离子体膜衍生囊泡剥离生物学和辐射反应：历史背景、在生物仿真和无细胞疗法中的应用，以及其释放和功能的定量机制对太空旅行的影响。

IF 2.5 3区医学

Radiation research Pub Date : 2024-08-01 DOI: 10.1667/RADE-24-00078.1

Nicholas Dainiak

{"title":"Biology of Exfoliation of Plasma Membrane-Derived Vesicles and the Radiation Response: Historical Background, Applications in Biodosimetry and Cell-Free Therapeutics, and Quantal Mechanisms for Their Release and Function with Implications for Space Travel.","authors":"Nicholas Dainiak","doi":"10.1667/RADE-24-00078.1","DOIUrl":"10.1667/RADE-24-00078.1","url":null,"abstract":"This historical review of extracellular vesicles in the setting of exposure to ionizing radiation (IR) traces our understanding of how vesicles were initially examined and reported in the literature in the late 1970s (for secreted exosomes) and early 1980s (for plasma membrane-derived, exfoliated vesicles) to where we are now and where we may be headed in the next decade. An emphasis is placed on biophysical properties of extracellular vesicles, energy consumption and the role of vesiculation as an essential component of membrane turnover. The impact of intercellular signal trafficking by vesicle surface and intra-vesicular lipids, proteins, nucleic acids and metabolites is reviewed in the context of biomarkers for estimating individual radiation dose after exposure to radiation, pathogenesis of disease and development of cell-free therapeutics. Since vesicles express both growth stimulatory and inhibitory molecules, a hypothesis is proposed to consider superposition in a shared space and entanglement of molecules by energy sources that are external to human cells. Implications of this approach for travel in deep space are briefly discussed in the context of clinical disorders that have been observed after space travel.","PeriodicalId":20903,"journal":{"name":"Radiation research","volume":" ","pages":"328-354"},"PeriodicalIF":2.5,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141564177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seventy Years of Dose-response Models: From the Target Theory to the Use of Big Databases Involving Cell Survival and DNA Repair. 剂量-反应模型七十年：从目标理论到涉及细胞存活和 DNA 修复的大型数据库的使用。

IF 2.5 3区医学

Radiation research Pub Date : 2024-08-01 DOI: 10.1667/RADE-24-00015.1

Larry Bodgi, Laurent Pujo-Menjouet, Audrey Bouchet, Michel Bourguignon, Nicolas Foray

{"title":"Seventy Years of Dose-response Models: From the Target Theory to the Use of Big Databases Involving Cell Survival and DNA Repair.","authors":"Larry Bodgi, Laurent Pujo-Menjouet, Audrey Bouchet, Michel Bourguignon, Nicolas Foray","doi":"10.1667/RADE-24-00015.1","DOIUrl":"10.1667/RADE-24-00015.1","url":null,"abstract":"Radiobiological data, whether obtained at the clinical, biological or molecular level has significantly contributed to a better description and prediction of the individual dose-response to ionizing radiation and a better estimation of the radiation-induced risks. Particularly, over the last seventy years, the amount of radiobiological data has considerably increased, and permitted the mathematical formulas describing dose-response to become less empirical. A better understanding of the basic radiobiological mechanisms has also contributed to establish quantitative inter-correlations between clinical, biological and molecular biomarkers, refining again the mathematical models of description. Today, big data approaches and, more recently, artificial intelligence may finally complete and secure this long process of thinking from the multi-scale description of radiation-induced events to their prediction. Here, we reviewed the major dose-response models applied in radiobiology for quantifying molecular and cellular radiosensitivity and aimed to explain their evolution: Specifically, we highlighted the advances concerning the target theory with the cell survival models and the progressive introduction of the DNA repair process in the mathematical models. Furthermore, we described how the technological advances have changed the description of DNA double-strand break (DSB) repair kinetics by introducing the important notion of DSB recognition, independent of that of DSB repair. Initially developed separately, target theory on one hand and, DSB recognition and repair, on the other hand may be now fused into a unified model involving the cascade of phosphorylations mediated by the ATM kinase in response to any genotoxic stress.","PeriodicalId":20903,"journal":{"name":"Radiation research","volume":" ","pages":"130-142"},"PeriodicalIF":2.5,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141158015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of Cell Cycle-Dependent Migration Activity after X-ray Exposure: A Radiobiological Approach for Optimization of Radiotherapy with Cell Cycle-Targeting Agents. 评估 X 射线照射后依赖细胞周期的迁移活动：用细胞周期靶向药物优化放射治疗的放射生物学方法》（A Radiobiological Approach for Optimization of Radiotherapy with Cell Cycle-Targeting Agents）。

IF 2.5 3区医学

Radiation research Pub Date : 2024-07-01 DOI: 10.1667/RADE-23-00213.1

Ryosuke Seino, Hisanori Fukunaga

{"title":"Evaluation of Cell Cycle-Dependent Migration Activity after X-ray Exposure: A Radiobiological Approach for Optimization of Radiotherapy with Cell Cycle-Targeting Agents.","authors":"Ryosuke Seino, Hisanori Fukunaga","doi":"10.1667/RADE-23-00213.1","DOIUrl":"10.1667/RADE-23-00213.1","url":null,"abstract":"Radiotherapy with cell cycle-specific anticancer agents has become an important option in the control of both primary tumors and metastases. Here, we used image analysis algorithms that enable quick segmentation and tracking to describe a radiobiological approach for the optimized selection of cell cycle-targeting anticancer drugs for radiotherapy. We confirmed cell cycle-synchronization using human cervical cancer HeLa cells expressing a fluorescent ubiquitination-based cell cycle indicator (FUCCI) as a cell cycle-monitoring probe. Cells synchronized in the G1 and G2 phases were irradiated with X rays at 0.5-2 Gy. Each cell was identified using Cellpose, a deep learning-based algorithm for cellular segmentation, and the velocity and direction of migration were analyzed using the TrackMate plugin in Fiji ImageJ. G1 phase synchronized cells showed a dose-dependent decrease in velocity after irradiation, while G2 cells tended to increase their velocity. The migration pattern of all cells appeared to be a random walk model, regardless of the exposure dose. In addition, we used cisplatin to arrest the cell cycle. HeLa-FUCCI cells arrested at the G2 phase via cisplatin treatment showed enhanced cell migration after X-ray exposure. These results indicated that anticancer agents that arrest the cell cycle of cancer cells in a specific phase may enhance cell migration after radiotherapy. Our approach, using cellular segmentation and tracking algorithms, could enhance the radiobiological assessment of cell cycle-specific migration after irradiation to aid in optimizing radiotherapy using cell cycle-targeting agents.","PeriodicalId":20903,"journal":{"name":"Radiation research","volume":" ","pages":"87-95"},"PeriodicalIF":2.5,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140892389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pharmacokinetic and Metabolomic Studies with a Promising Radiation Countermeasure, BBT-059 (PEGylated interleukin-11), in Rhesus Nonhuman Primates. 在恒河猴等非人灵长类动物中使用有望成为辐射对策的 BBT-059（PEG 化白细胞介素-11）进行药代动力学和代谢组学研究。

IF 2.5 3区医学

Radiation research Pub Date : 2024-07-01 DOI: 10.1667/RADE-23-00194.1

Alana D Carpenter, Yaoxiang Li, Stephen Y Wise, Oluseyi O Fatanmi, Sarah A Petrus, Christine M Fam, Sharon J Carlson, George N Cox, Amrita K Cheema, Vijay K Singh

{"title":"Pharmacokinetic and Metabolomic Studies with a Promising Radiation Countermeasure, BBT-059 (PEGylated interleukin-11), in Rhesus Nonhuman Primates.","authors":"Alana D Carpenter, Yaoxiang Li, Stephen Y Wise, Oluseyi O Fatanmi, Sarah A Petrus, Christine M Fam, Sharon J Carlson, George N Cox, Amrita K Cheema, Vijay K Singh","doi":"10.1667/RADE-23-00194.1","DOIUrl":"10.1667/RADE-23-00194.1","url":null,"abstract":"BBT-059, a long-acting PEGylated interleukin-11 (IL-11) analog that is believed to have hematopoietic promoting and anti-apoptotic properties, is being developed as a potential radiation medical countermeasure (MCM) for hematopoietic acute radiation syndrome (H-ARS). This agent has been shown to improve survival in lethally irradiated mice. To further evaluate the drug's toxicity and safety profile, 12 naïve nonhuman primates (NHPs, rhesus macaques) were administered one of three doses of BBT-059 subcutaneously and were monitored for the next 21 days. Blood samples were collected throughout the study to assess the pharmacokinetics (PK) and pharmacodynamics (PD) of the drug as well as its effects on complete blood counts, cytokines, vital signs, and to conduct metabolomic studies. No adverse effects were detected in any treatment group during the study. Short-term changes in metabolomic profiles were present in all groups treated with BBT-059 beginning immediately after drug administration and reverting to near normal levels by the end of the study period. Several pathways and metabolites, particularly those related to inflammation and steroid hormone biosynthesis, were activated by BBT-059 administration. Taken together, these observations suggest that BBT-059 has a good safety profile for further development as a radiation MCM for regulatory approval for human use.","PeriodicalId":20903,"journal":{"name":"Radiation research","volume":" ","pages":"26-37"},"PeriodicalIF":2.5,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11295257/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140877159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Novel TGFβ Receptor Inhibitor, IPW-5371, Prevents Diet-induced Hepatic Steatosis and Insulin Resistance in Irradiated Mice. 一种新型 TGFβ 受体抑制剂 IPW-5371 可预防辐照小鼠饮食引起的肝脏脂肪变性和胰岛素抵抗。

IF 2.5 3区医学

Radiation research Pub Date : 2024-07-01 DOI: 10.1667/RADE-23-00202.1

Alexandria M Szalanczy, Chrissy Sherrill, Katherine M Fanning, Barry Hart, David Caudell, Ashley W Davis, Jordyn Whitfield, Kylie Kavanagh

{"title":"A Novel TGFβ Receptor Inhibitor, IPW-5371, Prevents Diet-induced Hepatic Steatosis and Insulin Resistance in Irradiated Mice.","authors":"Alexandria M Szalanczy, Chrissy Sherrill, Katherine M Fanning, Barry Hart, David Caudell, Ashley W Davis, Jordyn Whitfield, Kylie Kavanagh","doi":"10.1667/RADE-23-00202.1","DOIUrl":"10.1667/RADE-23-00202.1","url":null,"abstract":"As the number of cancer survivors increases and the risk of accidental radiation exposure rises, there is a pressing need to characterize the delayed effects of radiation exposure and develop medical countermeasures. Radiation has been shown to damage adipose progenitor cells and increase liver fibrosis, such that it predisposes patients to developing metabolic-associated fatty liver disease (MAFLD) and insulin resistance. The risk of developing these conditions is compounded by the global rise of diets rich in carbohydrates and fats. Radiation persistently increases the signaling cascade of transforming growth factor β (TGFβ), leading to heightened fibrosis as characteristic of the delayed effects of radiation exposure. We investigate here a potential radiation medical countermeasure, IPW-5371, a small molecule inhibitor of TGFβRI kinase (ALK5). We found that mice exposed to sub-lethal whole-body irradiation and chronic Western diet consumption but treated with IPW-5371 had a similar body weight, food consumption, and fat mass compared to control mice exposed to radiation. The IPW-5371 treated mice maintained lower fibrosis and fat accumulation in the liver, were more responsive to insulin and had lower circulating triglycerides and better muscle endurance. Future studies are needed to verify the improvement by IPW-5371 on the structure and function of other metabolically active tissues such as adipose and skeletal muscle, but these data demonstrate that IPW-5371 protects liver and whole-body health in rodents exposed to radiation and a Western diet, and there may be promise in using IPW-5371 to prevent the development of MAFLD.","PeriodicalId":20903,"journal":{"name":"Radiation research","volume":" ","pages":"1-10"},"PeriodicalIF":2.5,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141076528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Revisiting an Inverse Dose-Fractionation Effect of Ionizing Radiation Exposure for Ischemic Heart Disease: Insights from Recent Studies. 重新审视电离辐射暴露对缺血性心脏病的反剂量-分量效应：最新研究的启示。

IF 2.5 3区医学

Radiation research Pub Date : 2024-07-01 DOI: 10.1667/RADE-00230.1

Lydia B Zablotska, Mark P Little, Nobuyuki Hamada

引用次数: 0

Novel Small Molecule, UTS-1401, as a Radioprotector for Total-Body Irradiation. 新型小分子UTS-1401作为全身辐照的辐射防护剂

IF 2.5 3区医学

Radiation research Pub Date : 2024-07-01 DOI: 10.1667/RADE-22-00030.1

Frederick A Valeriote, Stephen L Brown, Joseph Media, Pin Li, Mani Maheshwari, Jiajiu Shaw

{"title":"Novel Small Molecule, UTS-1401, as a Radioprotector for Total-Body Irradiation.","authors":"Frederick A Valeriote, Stephen L Brown, Joseph Media, Pin Li, Mani Maheshwari, Jiajiu Shaw","doi":"10.1667/RADE-22-00030.1","DOIUrl":"10.1667/RADE-22-00030.1","url":null,"abstract":"We report on a new radioprotector, UTS-1401, a small molecule that was synthesized (by one of us, JS) and evaluated here for its radioprotective effect against total-body irradiation (TBI). Female and male NIH Swiss mice were subjected to TBI at doses of 6.5, 7.5 and 8.5 Gy either with or without a 24 h pretreatment of UTS-1401 given ip and observed for 30 days. Survival rates were significantly increased when mice were treated with UTS-1401 compared to those not treated. The radioprotective effect of UTS-1401 was drug-dose dependent for male mice exposed to 8.5 Gy TBI with 150 mg/kg of UTS-1401 as the optimal dose. The radioprotective effect of UTS-1401 on female mice exposed to 8.5 Gy TBI was observed at 50, 100, and 150 mg/kg, with no dose response relationship noted. Female mice were more radioresistant than male mice with LD50/30 values of 7.8 Gy vs. 6.8 Gy, respectively. Weight changes after UTS-1401 alone showed a significant body weight increase at 150 mg/kg. Both the ip and iv route for UTS-1401 were similarly effective for male mice exposed to 8 Gy TBI. Further analysis using an endogenous spleen colony assay demonstrated that pretreatment of UTS-1401 for up to 72h prior to TBI protected both spleen weight and hematopoietic stem cells with a treated/untreated ratio between 2.0 and 3.2 for the latter for times between 0.5 h and 72 h. A separate in vivo study showed that pretreatment of UTS-1401 protected bone marrow CFU-GM for mice exposed to TBI. In summary, UTS-1401 is a promising small-molecule radioprotective agent as demonstrated by whole animal, hematopoietic stem cell and bone marrow myeloid progenitor cell survival.","PeriodicalId":20903,"journal":{"name":"Radiation research","volume":" ","pages":"16-25"},"PeriodicalIF":2.5,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141157950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dr. Stanley Bartlett Curtis (1932-2024). 斯坦利-巴特利特-柯蒂斯博士（1932-2024）。

IF 2.5 3区医学

Radiation research Pub Date : 2024-07-01 DOI: 10.1667/RADE-24-00110.1

Walter Schimmerling, Francis A Cucinotta, Jack Miller, Mark Shavers

引用次数: 0

Rainer Kurt Sachs 1932-2024. 莱纳-库尔特-萨克斯 1932-2024.

IF 2.5 3区医学

Radiation research Pub Date : 2024-07-01 DOI: 10.1667/RADE-24-00RKS.1

David J Brenner, Lynn R Hlatky

引用次数: 0

Mechanism of the Radioresistant Colorectal Cancer Cell Line SW480RR Established after Fractionated X Irradiation. 分次 X 射线照射后建立的抗放射结直肠癌细胞株 SW480RR 的机制

IF 2.5 3区医学

Radiation research Pub Date : 2024-07-01 DOI: 10.1667/RADE-23-00021.1

Koya Yamashita, Hironobu Yasui, Tomoki Bo, Masaki Fujimoto, Osamu Inanami

{"title":"Mechanism of the Radioresistant Colorectal Cancer Cell Line SW480RR Established after Fractionated X Irradiation.","authors":"Koya Yamashita, Hironobu Yasui, Tomoki Bo, Masaki Fujimoto, Osamu Inanami","doi":"10.1667/RADE-23-00021.1","DOIUrl":"10.1667/RADE-23-00021.1","url":null,"abstract":"Radioresistant cancer cells are risk factors for recurrence and are occasionally detected in recurrent tumors after radiotherapy. Intratumor heterogeneity is believed to be a potential cause of treatment resistance. Heterogeneity in DNA content has also been reported in human colorectal cancer; however, little is known about how such heterogeneity changes with radiotherapy or how it affects cancer radioresistance. In the present study, we established radioresistant clone SW480RR cells after fractionated X-ray irradiation of human colorectal cancer-derived SW480.hu cells, which are composed of two cell populations with different chromosome numbers, and examined how cellular radioresistance changed with fractionated radiotherapy. Compared with the parental cell population, which mostly comprised cells with higher ploidy, the radioresistant clones showed lower ploidy and less initial DNA damage. The lower ploidy cells in the parental cell population were identified as having radioresistance prior to irradiation; thus, SW480RR cells were considered intrinsically radioresistant cells selected from the parental population through fractionated irradiation. This study presents a practical example of the emergence of radioresistant cells from a cell population with ploidy heterogeneity after irradiation. The most likely mechanism is the selection of an intrinsically radioresistant population after fractionated X-ray irradiation, with a background in which lower ploidy cells exhibit lower initial DNA damage.","PeriodicalId":20903,"journal":{"name":"Radiation research","volume":" ","pages":"38-50"},"PeriodicalIF":2.5,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141082287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0