30 Works

Krüppel-like factor 7 influences translation and pathways involved in ribosomal biogenesis in breast cancer

Anne-Marie Lüchtenborg, Patrick Metzger, Miguel Cosenza Contreras, Victor Oria, Martin L. Biniossek, Franziska Lindner, Klemens Fröhlich, Ambrus Malyi, Thalia Erbes, Nicole Gensch, Jochen Maurer, Andreas Thomsen, Melanie Boerries, Oliver Schilling, Martin Werner & Peter Bronsert
Abstract Background Ribosomal biogenesis and ribosomal proteins have attracted attention in the context of tumor biology in recent years. Instead of being mere translational machineries, ribosomes might play an active role in tumor initiation and progression. Despite its importance, regulation of ribosomal biogenesis is still not completely understood. Methods Using Gene Set Enrichment Analysis of RNA sequencing and proteomical mass spectrometry data in breast cancer cells expressing Krüppel-like factor 7 (KLF7), we identified processes altered...

PI3K/AKT signaling allows for MAPK/ERK pathway independency mediating dedifferentiation-driven treatment resistance in melanoma

Eyleen Corrales, Ella Levit-Zerdoun, Patrick Metzger, Ralf Mertes, Ariane Lehmann, Julia Münch, Steffen Lemke, Silke Kowar & Melanie Boerries
Abstract Background Current therapeutic management of advanced melanoma patients largely depends on their BRAF mutation status. However, the vast heterogeneity of the tumors hampers the success of therapies targeting the MAPK/ERK pathway alone. Dissecting this heterogeneity will contribute to identifying key players in the oncogenic progression to tailor more effective therapies. Methods We performed a comprehensive molecular and phenotypic characterization of a panel of patient-derived BRAFV600E-positive melanoma cell lines. Transcriptional profiling was used to identify...

Impact of NAFLD on clinical outcomes in hepatocellular carcinoma treated with sorafenib: an international cohort study

Jessica Howell, Amit Samani, Binish Mannan, Saur Hajiev, Leila Motedayen Aval, Rebecca Abdelmalak, Vincent C. Tam, Dominik Bettinger, Robert Thimme, Tamar H. Taddei, David E. Kaplan, Max Seidensticker & Rohini Sharma
Background:The impact of nonalcoholic fatty liver disease (NAFLD) on overall survival (OS), treatment response and toxicity in patients with hepatocellular carcinoma (HCC) treated with sorafenib is unknown. We examined the impact of NAFLD on survival and toxicity in an international cohort of patients receiving sorafenib.Methods:Clinical and demographic data were collected from patients consecutively treated at specialist centres in Europe and North America. The impact of NAFLD on OS, sorafenib-specific survival and toxicity compared with other...

Unraveling implementation context: the Basel Approach for coNtextual ANAlysis (BANANA) in implementation science and its application in the SMILe project

Juliane Mielke, Lynn Leppla, Sabine Valenta, Leah L. Zullig, Franziska Zúñiga, Sandra Staudacher, Alexandra Teynor & Sabina De Geest
Abstract Background Designing intervention and implementation strategies with careful consideration of context is essential for successful implementation science projects. Although the importance of context has been emphasized and methodology for its analysis is emerging, researchers have little guidance on how to plan, perform, and report contextual analysis. Therefore, our aim was to describe the Basel Approach for coNtextual ANAlysis (BANANA) and to demonstrate its application on an ongoing multi-site, multiphase implementation science project to develop/adapt,...

Unraveling implementation context: the Basel Approach for coNtextual ANAlysis (BANANA) in implementation science and its application in the SMILe project

Juliane Mielke, Lynn Leppla, Sabine Valenta, Leah L. Zullig, Franziska Zúñiga, Sandra Staudacher, Alexandra Teynor & Sabina De Geest
Abstract Background Designing intervention and implementation strategies with careful consideration of context is essential for successful implementation science projects. Although the importance of context has been emphasized and methodology for its analysis is emerging, researchers have little guidance on how to plan, perform, and report contextual analysis. Therefore, our aim was to describe the Basel Approach for coNtextual ANAlysis (BANANA) and to demonstrate its application on an ongoing multi-site, multiphase implementation science project to develop/adapt,...

Krüppel-like factor 7 influences translation and pathways involved in ribosomal biogenesis in breast cancer

Anne-Marie Lüchtenborg, Patrick Metzger, Miguel Cosenza Contreras, Victor Oria, Martin L. Biniossek, Franziska Lindner, Klemens Fröhlich, Ambrus Malyi, Thalia Erbes, Nicole Gensch, Jochen Maurer, Andreas Thomsen, Melanie Boerries, Oliver Schilling, Martin Werner & Peter Bronsert
Abstract Background Ribosomal biogenesis and ribosomal proteins have attracted attention in the context of tumor biology in recent years. Instead of being mere translational machineries, ribosomes might play an active role in tumor initiation and progression. Despite its importance, regulation of ribosomal biogenesis is still not completely understood. Methods Using Gene Set Enrichment Analysis of RNA sequencing and proteomical mass spectrometry data in breast cancer cells expressing Krüppel-like factor 7 (KLF7), we identified processes altered...

Planning preclinical confirmatory multicenter trials to strengthen translation from basic to clinical research – a multi-stakeholder workshop report

Natascha Ingrid Drude, Lorena Martinez-Gamboa, Meggie Danziger, Anja Collazo, Silke Kniffert, Janine Wiebach, Gustav Nilsonne, Frank Konietschke, Sophie K. Piper, Samuel Pawel, Charlotte Micheloud, Leonhard Held, Florian Frommlet, Daniel Segelcke, Esther M. Pogatzki-Zahn, Bernhard Voelkl, Tim Friede, Edgar Brunner, Astrid Dempfle, Bernhard Haller, Marie Juliane Jung, Lars Björn Riecken, Hans-Georg Kuhn, Matthias Tenbusch, Lina Maria Serna Higuita … & Ulf Toelch
Abstract Clinical translation from bench to bedside often remains challenging even despite promising preclinical evidence. Among many drivers like biological complexity or poorly understood disease pathology, preclinical evidence often lacks desired robustness. Reasons include low sample sizes, selective reporting, publication bias, and consequently inflated effect sizes. In this context, there is growing consensus that confirmatory multicenter studies -by weeding out false positives- represent an important step in strengthening and generating preclinical evidence before moving on...

Association of sex steroid hormones and new bone formation rate after iliac onlay grafting: a prospective clinical pilot study

Victoria Constanze Landwehr, Tobias Fretwurst, Julia Heinen, Kirstin Vach, Katja Nelson, Susanne Nahles & Gerhard Iglhaut
Abstract Purpose The present prospective study evaluates the association between new bone formation rate in the iliac onlay graft and sex steroid hormone serum levels. Methods A total of 15 partially or completely edentulous postmenopausal females and 9 males with less than 5 mm height of the remaining alveolar bone underwent iliac onlay grafting followed by dental implant placement using a two-stage approach. Sex hormone binding globulin and 17β-estradiol serum levels were investigated by electrochemiluminescence...

Fabrication and application of free-standing fiber based on blue phase liquid crystal

Yong Li, Zhen Yin & Dan Luo
The application of blue-phase liquid crystals (BPLCs) in optical control devices has been widely studied due to their fast response characteristics. However, the fabrication of free-standing BPLC fiber with emerging functionalities is challenging. Here, we demonstrates a free-standing fiber based on BPLC with excellent stability, flexibility and multifunction. The multi-mode fiber (MMF) end face is etched by the etching agent of buffered oxide etch (BOE), which can be fixedly connected with the free-standing BPLC fiber...

Circular RNA circPVT1 promotes nasopharyngeal carcinoma metastasis via the β-TrCP/c-Myc/SRSF1 positive feedback loop

Yongzhen Mo, Yumin Wang, Yian Wang, Xiangying Deng, Qijia Yan, Chunmei Fan, Shuai Zhang, Shanshan Zhang, Zhaojian Gong, Lei Shi, Qianjin Liao, Can Guo, Yong Li, Guiyuan Li, Zhaoyang Zeng, Weihong Jiang, Wei Xiong & Bo Xiang
Abstract Background Circular RNAs (circRNAs) act as gene expression regulators and are involved in cancer progression. However, their functions have not been sufficiently investigated in nasopharyngeal carcinoma (NPC). Methods The expression profiles of circRNAs in NPC cells within different metastatic potential were reanalyzed. Quantitative reverse transcription PCR and in situ hybridization were used to detect the expression level of circPVT1 in NPC cells and tissue samples. The association of expression level of circPVT1 with clinical...

Health and social care of home-dwelling frail older adults in Switzerland: a mixed methods study

Olivia Yip, Suzanne Dhaini, Jan Esser, Flaka Siqeca, Maria Jose Mendieta, Evelyn Huber, Andreas Zeller, Sabina De Geest, Mieke Deschodt, Franziska Zúñiga, Leah L. Zullig & Heather A. King
Abstract Background Home-dwelling frail older adults are often faced with multimorbidity and complex care needs, requiring health and social care systems that support frail older adults to age in place. The objective of this paper was to investigate the types of formal health and social care as well as informal care and social support used by home-dwelling frail older adults; whether they perceive their support as sufficient; and their experience with and preferences for care...

Prognostic value of tumor-infiltrating immune cells and immune checkpoints in elderly head-and-neck squamous cell carcinoma patients undergoing definitive (chemo)radiotherapy

Alexander Rühle, Jovan Todorovic, Simon S. K. Spohn, Eleni Gkika, Christoph Becker, Andreas Knopf, Constantinos Zamboglou, Tanja Sprave, Martin Werner, Anca-Ligia Grosu, Gian Kayser & Nils H. Nicolay
Abstract Background and purpose Tumor-infiltrating lymphocytes (TILs) are associated with locoregional control (LRC) in head-and-neck squamous cell carcinoma (HNSCC) patients undergoing (chemo)radiotherapy. As immunosenescence results in reduced immune activity, the role of TILs in elderly HNSCC patients may differ compared to younger patients, providing a rationale to study the prognostic role of TILs and immune checkpoints (ICs) in this population. Material and methods Sixty-three HNSCC patients aged ≥ 65 years undergoing definitive (chemo)radiotherapy between 2010...

Light as quantum back-action nullifying meter

Sankar Davuluri & Yong Li
We propose a new method to overcome quantum back-action in a measurement process using oscillators. An optical oscillator is used as a meter to measure the parameters of another open oscillator. The optical oscillator is synthesized such that the optical restoring force counters any perturbations induced by the quantum back-action phenomena. As a result, it is shown that the quantum back-action in continuous measurement is suppressed in the low frequency regime i.e., for frequencies much...

PI3K/AKT signaling allows for MAPK/ERK pathway independency mediating dedifferentiation-driven treatment resistance in melanoma

Eyleen Corrales, Ella Levit-Zerdoun, Patrick Metzger, Ralf Mertes, Ariane Lehmann, Julia Münch, Steffen Lemke, Silke Kowar & Melanie Boerries
Abstract Background Current therapeutic management of advanced melanoma patients largely depends on their BRAF mutation status. However, the vast heterogeneity of the tumors hampers the success of therapies targeting the MAPK/ERK pathway alone. Dissecting this heterogeneity will contribute to identifying key players in the oncogenic progression to tailor more effective therapies. Methods We performed a comprehensive molecular and phenotypic characterization of a panel of patient-derived BRAFV600E-positive melanoma cell lines. Transcriptional profiling was used to identify...

Dissolution and evolution effects on pressure fluctuations in a space micropump

Zhipeng Ren, Honglei Hao, Deyou Li, Hongjie Wang, Jintao Liu & Yong Li
The purpose of this paper is to reveal the dynamic mass transfer effects between gas and liquid on pressure fluctuations in a space micropump using our proposed computational model of gas–liquid mass transfer. Complex dissolution and evolution processes were applied to achieve accurate dynamic gas–liquid mass transfer predictions in the micropump. The validation of experiments was conducted by measuring the performance characteristics of the micropump, and the mass transfer model was verified by a dissolved...

Dissolution and evolution effects on pressure fluctuations in a space micropump

Zhipeng Ren, Honglei Hao, Deyou Li, Hongjie Wang, Jintao Liu & Yong Li
The purpose of this paper is to reveal the dynamic mass transfer effects between gas and liquid on pressure fluctuations in a space micropump using our proposed computational model of gas–liquid mass transfer. Complex dissolution and evolution processes were applied to achieve accurate dynamic gas–liquid mass transfer predictions in the micropump. The validation of experiments was conducted by measuring the performance characteristics of the micropump, and the mass transfer model was verified by a dissolved...

Empirical evidence of study design biases in nutrition randomised controlled trials: a meta-epidemiological study

Julia Stadelmaier, Isabelle Roux, Maria Petropoulou & Lukas Schwingshackl
Abstract Background Instruments to critically appraise randomised controlled trials (RCTs) are based on evidence from meta-epidemiological studies. We aim to conduct a meta-epidemiological study on the average bias associated with reported methodological trial characteristics such as random sequence generation, allocation concealment, blinding, incomplete outcome data, selective reporting, and compliance of RCTs in nutrition research. Methods We searched the Cochrane Database of Systematic Reviews, for systematic reviews of RCTs, published between 01 January 2010 and 31...

Empirical evidence of study design biases in nutrition randomised controlled trials: a meta-epidemiological study

Julia Stadelmaier, Isabelle Roux, Maria Petropoulou & Lukas Schwingshackl
Abstract Background Instruments to critically appraise randomised controlled trials (RCTs) are based on evidence from meta-epidemiological studies. We aim to conduct a meta-epidemiological study on the average bias associated with reported methodological trial characteristics such as random sequence generation, allocation concealment, blinding, incomplete outcome data, selective reporting, and compliance of RCTs in nutrition research. Methods We searched the Cochrane Database of Systematic Reviews, for systematic reviews of RCTs, published between 01 January 2010 and 31...

Impact of NAFLD on clinical outcomes in hepatocellular carcinoma treated with sorafenib: an international cohort study

Jessica Howell, Amit Samani, Binish Mannan, Saur Hajiev, Leila Motedayen Aval, Rebecca Abdelmalak, Vincent C. Tam, Dominik Bettinger, Robert Thimme, Tamar H. Taddei, David E. Kaplan, Max Seidensticker & Rohini Sharma
Background:The impact of nonalcoholic fatty liver disease (NAFLD) on overall survival (OS), treatment response and toxicity in patients with hepatocellular carcinoma (HCC) treated with sorafenib is unknown. We examined the impact of NAFLD on survival and toxicity in an international cohort of patients receiving sorafenib.Methods:Clinical and demographic data were collected from patients consecutively treated at specialist centres in Europe and North America. The impact of NAFLD on OS, sorafenib-specific survival and toxicity compared with other...

Circular RNA circPVT1 promotes nasopharyngeal carcinoma metastasis via the β-TrCP/c-Myc/SRSF1 positive feedback loop

Yongzhen Mo, Yumin Wang, Yian Wang, Xiangying Deng, Qijia Yan, Chunmei Fan, Shuai Zhang, Shanshan Zhang, Zhaojian Gong, Lei Shi, Qianjin Liao, Can Guo, Yong Li, Guiyuan Li, Zhaoyang Zeng, Weihong Jiang, Wei Xiong & Bo Xiang
Abstract Background Circular RNAs (circRNAs) act as gene expression regulators and are involved in cancer progression. However, their functions have not been sufficiently investigated in nasopharyngeal carcinoma (NPC). Methods The expression profiles of circRNAs in NPC cells within different metastatic potential were reanalyzed. Quantitative reverse transcription PCR and in situ hybridization were used to detect the expression level of circPVT1 in NPC cells and tissue samples. The association of expression level of circPVT1 with clinical...

Association of sex steroid hormones and new bone formation rate after iliac onlay grafting: a prospective clinical pilot study

Victoria Constanze Landwehr, Tobias Fretwurst, Julia Heinen, Kirstin Vach, Katja Nelson, Susanne Nahles & Gerhard Iglhaut
Abstract Purpose The present prospective study evaluates the association between new bone formation rate in the iliac onlay graft and sex steroid hormone serum levels. Methods A total of 15 partially or completely edentulous postmenopausal females and 9 males with less than 5 mm height of the remaining alveolar bone underwent iliac onlay grafting followed by dental implant placement using a two-stage approach. Sex hormone binding globulin and 17β-estradiol serum levels were investigated by electrochemiluminescence...

Light as quantum back-action nullifying meter

Sankar Davuluri & Yong Li
We propose a new method to overcome quantum back-action in a measurement process using oscillators. An optical oscillator is used as a meter to measure the parameters of another open oscillator. The optical oscillator is synthesized such that the optical restoring force counters any perturbations induced by the quantum back-action phenomena. As a result, it is shown that the quantum back-action in continuous measurement is suppressed in the low frequency regime i.e., for frequencies much...

Prognostic value of tumor-infiltrating immune cells and immune checkpoints in elderly head-and-neck squamous cell carcinoma patients undergoing definitive (chemo)radiotherapy

Alexander Rühle, Jovan Todorovic, Simon S. K. Spohn, Eleni Gkika, Christoph Becker, Andreas Knopf, Constantinos Zamboglou, Tanja Sprave, Martin Werner, Anca-Ligia Grosu, Gian Kayser & Nils H. Nicolay
Abstract Background and purpose Tumor-infiltrating lymphocytes (TILs) are associated with locoregional control (LRC) in head-and-neck squamous cell carcinoma (HNSCC) patients undergoing (chemo)radiotherapy. As immunosenescence results in reduced immune activity, the role of TILs in elderly HNSCC patients may differ compared to younger patients, providing a rationale to study the prognostic role of TILs and immune checkpoints (ICs) in this population. Material and methods Sixty-three HNSCC patients aged ≥ 65 years undergoing definitive (chemo)radiotherapy between 2010...

Planning preclinical confirmatory multicenter trials to strengthen translation from basic to clinical research – a multi-stakeholder workshop report

Natascha Ingrid Drude, Lorena Martinez-Gamboa, Meggie Danziger, Anja Collazo, Silke Kniffert, Janine Wiebach, Gustav Nilsonne, Frank Konietschke, Sophie K. Piper, Samuel Pawel, Charlotte Micheloud, Leonhard Held, Florian Frommlet, Daniel Segelcke, Esther M. Pogatzki-Zahn, Bernhard Voelkl, Tim Friede, Edgar Brunner, Astrid Dempfle, Bernhard Haller, Marie Juliane Jung, Lars Björn Riecken, Hans-Georg Kuhn, Matthias Tenbusch, Lina Maria Serna Higuita … & Ulf Toelch
Abstract Clinical translation from bench to bedside often remains challenging even despite promising preclinical evidence. Among many drivers like biological complexity or poorly understood disease pathology, preclinical evidence often lacks desired robustness. Reasons include low sample sizes, selective reporting, publication bias, and consequently inflated effect sizes. In this context, there is growing consensus that confirmatory multicenter studies -by weeding out false positives- represent an important step in strengthening and generating preclinical evidence before moving on...

Fabrication and application of free-standing fiber based on blue phase liquid crystal

Yong Li, Zhen Yin & Dan Luo
The application of blue-phase liquid crystals (BPLCs) in optical control devices has been widely studied due to their fast response characteristics. However, the fabrication of free-standing BPLC fiber with emerging functionalities is challenging. Here, we demonstrates a free-standing fiber based on BPLC with excellent stability, flexibility and multifunction. The multi-mode fiber (MMF) end face is etched by the etching agent of buffered oxide etch (BOE), which can be fixedly connected with the free-standing BPLC fiber...

Registration Year

  • 2022
    30

Resource Types

  • Collection
    30

Affiliations

  • University Medical Center Freiburg
    30
  • University of Freiburg
    12
  • Jiangxi Agricultural University
    10
  • Huazhong University of Science and Technology
    10
  • Chengdu University of Traditional Chinese Medicine
    10
  • Capital Medical University
    10
  • Hubei University of Science and Technology
    10
  • Hubei University of Medicine
    10
  • Sun Yat-sen Memorial Hospital
    9
  • Chinese Academy of Medical Sciences & Peking Union Medical College
    9