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Ge BB, Liu Y, Jin JH, Wu JT, Liu HT, He CY, Zhao YL, Cao GF, Zhai XG, Chu KY, Wang JH. Effect of bladder filling status on positioning errors in post-hysterectomy cervical cancer radiotherapy. Ann Med 2023; 55:2249936. [PMID: 37683195 PMCID: PMC10494734 DOI: 10.1080/07853890.2023.2249936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 08/04/2023] [Accepted: 08/16/2023] [Indexed: 09/10/2023] Open
Abstract
Objective: To investigate the effect of different bladder filling states on positioning errors in radiotherapy for cervical cancer and obtain the reference range of bladder filling consistency during radiotherapy.Methods: Patients who underwent postoperative radiotherapy for cervical cancer in Nantong Tumor Hospital from October 2018 to December 2019 were selected. According to the bladder filling deviation, they were divided into group A1 (deviation < 20%) and group B1 (deviation ≥ 20%). The bladder filling variations of the two groups were compared with different positioning errors. Group A2 has a positioning error of <0.4 cm, and group B2 has a positioning error of ≥0.4 cm. The reference range of bladder filling consistency during radiotherapy is obtained by analyzing the composition ratio of different positioning errors of bladder filling deviation.Results: This study included 195 patients with cervical cancer. The error of longitudinal and vertical position in group B1 was significantly higher than that in group A1 (0.50 ± 0.34 vs. 0.26 ± 0.22 cm, p < 0.001, and 0.22 ± 0.17 vs. 0.16 ± 0.12 cm, p < 0.001). Compared with group B2, the absolute deviation of bladder filling in group A2 (54.1% ± 54.4% vs. 25.6% ± 22.7%, p < 0.001) was slight. The chi-square test showed significant differences in the proportion of the positioning state of different bladder filling forms (χ2 = 31.006, p < 0.001). In addition, there was a significant difference in the proportion of stability errors in patients with poor stability in different directions (χ2 = 118.551, p < 0.001).Conclusion: In patients with cervical cancer fixed in the supine position, a bladder capacity deviation <20% is easier to achieve excellent positioning with, and it can better control the positioning error of radiotherapy and ensure the positioning accuracy of dose distribution to the target area. It can also achieve good tumor treatment effects. This range can be used as a reference for bladder filling consistency in patients with cervical cancer undergoing radiotherapy.
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Affiliation(s)
- Bin-Bin Ge
- Department of Radiotherapy, Nantong Tumor Hospital, The Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Yu Liu
- Department of Radiotherapy, Nantong Tumor Hospital, The Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Jian-Hua Jin
- Department of Radiotherapy, Nantong Tumor Hospital, The Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Jian-Ting Wu
- Department of Radiotherapy, Nantong Tumor Hospital, The Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Hai-Tao Liu
- Department of Radiotherapy, Nantong Tumor Hospital, The Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Chen-Yun He
- Department of Radiotherapy, Nantong Tumor Hospital, The Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Yong-Liang Zhao
- Department of Radiotherapy, Nantong Tumor Hospital, The Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Gu-Fei Cao
- Department of Radiotherapy, Nantong Tumor Hospital, The Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Xiao-Gang Zhai
- Department of Radiotherapy, Nantong Tumor Hospital, The Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Kai-Yue Chu
- Department of Radiotherapy, Nantong Tumor Hospital, The Affiliated Tumor Hospital of Nantong University, Nantong, China
| | - Jun-Hui Wang
- Department of Radiotherapy, Nantong Tumor Hospital, The Affiliated Tumor Hospital of Nantong University, Nantong, China
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Wehling L, Keegan L, Fernández-Palanca P, Hassan R, Ghallab A, Schmitt J, Tang Y, Le Marois M, Roessler S, Schirmacher P, Kummer U, Hengstler JG, Sahle S, Breuhahn K. Spatial modeling reveals nuclear phosphorylation and subcellular shuttling of YAP upon drug-induced liver injury. eLife 2022; 11:78540. [PMID: 36255405 PMCID: PMC9578710 DOI: 10.7554/elife.78540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 09/21/2022] [Indexed: 12/02/2022] Open
Abstract
The Hippo signaling pathway controls cell proliferation and tissue regeneration via its transcriptional effectors yes-associated protein (YAP) and transcriptional coactivator with PDZ-binding motif (TAZ). The canonical pathway topology is characterized by sequential phosphorylation of kinases in the cytoplasm that defines the subcellular localization of YAP and TAZ. However, the molecular mechanisms controlling the nuclear/cytoplasmic shuttling dynamics of both factors under physiological and tissue-damaging conditions are poorly understood. By implementing experimental in vitro data, partial differential equation modeling, as well as automated image analysis, we demonstrate that nuclear phosphorylation contributes to differences between YAP and TAZ localization in the nucleus and cytoplasm. Treatment of hepatocyte-derived cells with hepatotoxic acetaminophen (APAP) induces a biphasic protein phosphorylation eventually leading to nuclear protein enrichment of YAP but not TAZ. APAP-dependent regulation of nuclear/cytoplasmic YAP shuttling is not an unspecific cellular response but relies on the sequential induction of reactive oxygen species (ROS), RAC-alpha serine/threonine-protein kinase (AKT, synonym: protein kinase B), as well as elevated nuclear interaction between YAP and AKT. Mouse experiments confirm this sequence of events illustrated by the expression of ROS-, AKT-, and YAP-specific gene signatures upon APAP administration. In summary, our data illustrate the importance of nuclear processes in the regulation of Hippo pathway activity. YAP and TAZ exhibit different shuttling dynamics, which explains distinct cellular responses of both factors under physiological and tissue-damaging conditions.
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Affiliation(s)
- Lilija Wehling
- Institute of Pathology, University Hospital Heidelberg, Heidelberg, Germany.,Department of Modeling of Biological Processes, COS Heidelberg/BioQuant, Heidelberg University, Heidelberg, Germany
| | - Liam Keegan
- Department of Modeling of Biological Processes, COS Heidelberg/BioQuant, Heidelberg University, Heidelberg, Germany
| | - Paula Fernández-Palanca
- Institute of Pathology, University Hospital Heidelberg, Heidelberg, Germany.,Institute of Biomedicine (IBIOMED), University of León, León, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Madrid, Spain
| | - Reham Hassan
- Leibniz Research Centre for Working Environment and Human Factors, Department of Toxicology, Technical University Dortmund, Dortmund, Germany.,Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, South Valley University, Qena, Egypt
| | - Ahmed Ghallab
- Leibniz Research Centre for Working Environment and Human Factors, Department of Toxicology, Technical University Dortmund, Dortmund, Germany.,Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, South Valley University, Qena, Egypt
| | - Jennifer Schmitt
- Institute of Pathology, University Hospital Heidelberg, Heidelberg, Germany
| | - Yingyue Tang
- Institute of Pathology, University Hospital Heidelberg, Heidelberg, Germany
| | - Maxime Le Marois
- Institute of Pathology, University Hospital Heidelberg, Heidelberg, Germany
| | - Stephanie Roessler
- Institute of Pathology, University Hospital Heidelberg, Heidelberg, Germany
| | - Peter Schirmacher
- Institute of Pathology, University Hospital Heidelberg, Heidelberg, Germany
| | - Ursula Kummer
- Department of Modeling of Biological Processes, COS Heidelberg/BioQuant, Heidelberg University, Heidelberg, Germany
| | - Jan G Hengstler
- Leibniz Research Centre for Working Environment and Human Factors, Department of Toxicology, Technical University Dortmund, Dortmund, Germany
| | - Sven Sahle
- Department of Modeling of Biological Processes, COS Heidelberg/BioQuant, Heidelberg University, Heidelberg, Germany
| | - Kai Breuhahn
- Institute of Pathology, University Hospital Heidelberg, Heidelberg, Germany
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Jaeschke H. Comments on "DNA-binding activities of compounds acting as enzyme inhibitors, ion channel blockers and receptor binders.". Chem Biol Interact 2022; 351:109761. [PMID: 34843691 PMCID: PMC8989075 DOI: 10.1016/j.cbi.2021.109761] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 11/17/2021] [Accepted: 11/25/2021] [Indexed: 01/07/2023]
Abstract
I read with interest the article "DNA-binding activities of compounds acting as enzyme inhibitors, ion channel blockers and receptor binders" recently published in Chemico-Biological Interactions. The authors suggested that acetaminophen, one of the most used drugs worldwide, alkylates DNA at therapeutic doses and is genotoxic. Given the implications of this statements for public health, it is important for the reader to hear a different perspective that is based on the entire literature on this subject. Everything considered, there is no credible evidence that acetaminophen is a genotoxic hazard or a carcinogen at therapeutic doses.
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