Article
Oncology
Tobey J. MacDonald, Jingbo Liu, Bing Yu, Anshu Malhotra, Jenny Munson, Jaekeun C. Park, Kenty Wang, Baowei Fei, Ravi Bellamkonda, Jack Arbiser
Summary: Imipramine blue (IB), a novel NADPH oxidase inhibitor, shows promising activity against medulloblastoma by slowing tumor progression and improving survival in mice. Clinical trials of IB for SHH MB should be pursued to develop new targeted therapeutic approaches for children. Liposome-IB (Lipo-IB) demonstrates potential as a nanoparticle-based therapeutic for SHH MB treatment, showing significant inhibition of tumor growth and improved survival in preclinical studies.
Article
Oncology
Bohdan J. Soltys, Katie B. Grausam, Shanta M. Messerli, Carleton J. C. Hsia, Haotian Zhao
Summary: A study was conducted to investigate the inhibitory effect of polynitroxylated albumin (PNA) on leptomeningeal dissemination and metastatic tumor growth in a Sonic Hedgehog transgenic mouse model. The results showed that PNA treatment prolonged the lifespan of the mice and reduced the proliferation of primary tumors. Additionally, the number of cells in spinal cord metastatic tumors was significantly decreased in PNA-treated mice.
FRONTIERS IN ONCOLOGY
(2023)
Article
Neurosciences
Fengjiao Liu, Jingyuan Shao, Haihong Yang, Guochao Yang, Qian Zhu, Yan Wu, Lingling Zhu, Haitao Wu
Summary: Our study found that Rack1 was significantly upregulated in the majority of human cerebellar MB tumors. Genetic ablation of Rack1 expression in SHH-MB tumor mice could significantly inhibit MB proliferation, reduce the tumor size, and prolong the survival of tumor rescue mice. Further studies showed that in rescue mice, while apoptosis and autophagy levels were unaffected, the expression of Gli1 and HDAC2 was significantly decreased suggesting the inactivation of the SHH signaling pathway.
CNS NEUROSCIENCE & THERAPEUTICS
(2021)
Article
Biology
Xiaowei Zheng, Sampath Narayanan, Cheng Xu, Sofie Eliasson Angelstig, Jacob Grunler, Allan Zhao, Alessandro Di Toro, Luciano Bernardi, Massimiliano Mazzone, Peter Carmeliet, Marianna Del Sole, Giancarlo Solaini, Elisabete A. Forsberg, Ao Zhang, Kerstin Brismar, Tomas A. Schiffer, Neda Rajamand Ekberg, Ileana Ruxandra Botusan, Fredrik Palm, Sergiu-Bogdan Catrina
Summary: Excessive production of mitochondrial reactive oxygen species (ROS) in diabetes complications is mainly caused by impaired responses to hypoxia due to the inhibition of hypoxia-inducible factor-1 (HIF-1) by hyperglycemia. Restoring HIF-1 function can attenuate ROS overproduction, protect cells against apoptosis and renal injury in diabetes. These findings suggest that targeting HIF-1 repression could be a potential therapeutic strategy for diabetic complications.
Article
Chemistry, Medicinal
Christopher Lawson, Thowaiba Babikr Ahmed Alta, Georgia Moschou, Vasiliki Skamnaki, Theodora G. A. Solovou, Caroline Topham, Joseph Hayes, Timothy J. Snape
Summary: Medulloblastoma is a highly aggressive and heterogeneous tumor that accounts for 15-20% of childhood brain tumors. In this study, potent in vitro anticancer activity against medulloblastoma cell lines was achieved using first-generation compounds, leading to the development of second-generation compounds with up to sixty times the activity, providing promising new leads for further research.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2021)
Article
Neurosciences
Haritha Kunhiraman, Leon McSwain, Shubin W. Shahab, Timothy R. Gershon, Tobey J. MacDonald, Anna Marie Kenney
Summary: This study found that the Sonic Hedgehog (SHH) subtype of medulloblastoma (MB) has a unique tumor microenvironment compared to other subtypes. The SHH MB cells were found to produce elevated levels of IGFBP2, which is required for SHH MB cell proliferation, colony formation, and cell migration. These findings suggest that targeting the IGFBP2-STAT3 axis could be a novel therapeutic approach for SHH medulloblastoma.
ACTA NEUROPATHOLOGICA COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Liam D. Hendrikse, Parthiv Haldipur, Olivier Saulnier, Jake Millman, Alexandria H. Sjoboen, Anders W. Erickson, Winnie Ong, Victor Gordon, Ludivine Coudiere-Morrison, Audrey L. Mercier, Mohammad Shokouhian, Raul A. Suarez, Michelle Ly, Stephanie Borlase, David S. Scott, Maria C. Vladoiu, Hamza Farooq, Olga Sirbu, Takuma Nakashima, Shohei Nambu, Yusuke Funakoshi, Alec Bahcheli, J. Javier Diaz-Mejia, Joseph Golser, Kathleen Bach, Tram Phuong-Bao, Patryk Skowron, Evan Y. Wang, Sachin A. Kumar, Polina Balin, Abhirami Visvanathan, John J. Y. Lee, Ramy Ayoub, Xin Chen, Xiaodi Chen, Karen L. Mungall, Betty Luu, Pierre Berube, Yu C. Wang, Stefan M. Pfister, Seung-Ki Kim, Olivier Delattre, Franck Bourdeaut, Francois Doz, Julien Masliah-Planchon, Wieslawa A. Grajkowska, James Loukides, Peter Dirks, Michelle Fevre-Montange, Anne Jouvet, Pim J. French, Johan M. Kros, Karel Zitterbart, Swneke D. Bailey, Charles G. Eberhart, Amulya A. N. Rao, Caterina Giannini, James M. Olson, Miklos Garami, Peter Hauser, Joanna J. Phillips, Young S. Ra, Carmen de Torres, Jaume Mora, Kay K. W. Li, Ho-Keung Ng, Wai S. Poon, Ian F. Pollack, Enrique Lopez-Aguilar, G. Yancey Gillespie, Timothy E. Van Meter, Tomoko Shofuda, Rajeev Vibhakar, Reid C. Thompson, Michael K. Cooper, Joshua B. Rubin, Toshihiro Kumabe, Shin Jung, Boleslaw Lach, Achille Lolascon, Veronica Ferrucci, Pasqualino de Antonellis, Massimo Zollo, Giuseppe Cinalli, Shenandoah Robinson, Duncan S. Stearns, Erwin G. Van Meir, Paola Porrati, Gaetano Finocchiaro, Maura Massimino, Carlos G. Carlotti, Claudia C. Faria, Martine F. Roussel, Frederick Boop, Jennifer A. Chan, Kimberly A. Aldinger, Ferechte Razavi, Evelina Silvestri, Roger E. McLendon, Eric M. Thompson, Marc Ansari, Maria L. Garre, Fernando Chico, Pilar Eguia, Mario Perezpena, A. Sorana Morrissy, Florence M. G. Cavalli, Xiaochong Wu, Craig Daniels, Jeremy N. Rich, Steven J. M. Jones, Richard A. Moore, Marco A. Marra, Xi Huang, Juri Reimand, Poul H. Sorensen, Robert J. Wechsler-Reya, William A. Weiss, Trevor J. Pugh, Livia Garzia, Claudia L. Kleinman, Lincoln D. Stein, Nada Jabado, David Malkin, Olivier Ayrault, Jeffrey A. Golden, David W. Ellison, Brad Doble, Vijay Ramaswamy, Tamra E. Werbowetski-Ogilvie, Hiromichi Suzuki, Kathleen J. Millen, Michael D. Taylor
Summary: Medulloblastoma (MB) is a pediatric embryonal neoplasm of the hindbrain with subtypes including Sonic hedgehog MB, WNT MB and G4 MB. Somatic mutations in G4 MB converge on the core binding factor alpha (CBFA) complex, and knocking down OTX2 can relieve differentiation blockage.
Article
Cell Biology
Petr Fojtik, Deborah Beckerova, Katerina Holomkova, Martin Senfluk, Vladimir Rotrekl
Summary: Mild hypoxia attenuates the pluripotency-promoting PI3K/AKT signaling pathway in human pluripotent stem cells compared to normoxic conditions, due to the downregulation of ROS. In addition, the MAPK pathway also downregulates ROS and attenuates the PI3K/AKT signaling via a novel interaction between these pathways. This ROS-mediated regulatory circuit may have implications for enhancing cultivation and differentiation protocols for hPSCs, as well as providing insights into cancer stem cell signaling regulation.
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
(2021)
Article
Oncology
Jiaqing Yi, BongWoo Kim, Xuanming Shi, Xiaoming Zhan, Q. Richard Lu, Zhenyu Xuan, Jiang Wu
Summary: This study reveals that PRC2 heterogeneity plays an oncogenic role in SHH medulloblastoma, promoting tumor growth. Deletion of PRC2 core subunit EED inhibits tumor growth, while mosaic deletion of EED enhances tumor growth. The presence of EED is essential for maintaining cerebellum granule neuron precursors.
Article
Pharmacology & Pharmacy
Huangyi Fang, Lingfei Wang, Lisheng Yu, Fang Shen, Zelin Yang, Yue Yang, Shize Li, Haipeng Dai, Feng Tan, Jian Lin, Hansong Sheng
Summary: This study investigated the inhibitory effect of metformin on medulloblastoma and the underlying mechanism involving the Sonic hedgehog (Shh) signaling pathway. The results showed that metformin effectively inhibited proliferation and metastasis of medulloblastoma cells, and this effect was associated with apoptosis, cell cycle arrest, and inhibition of the Shh pathway. In addition, metformin demonstrated anticancer effects in vivo using a murine model. These findings highlight the potential of metformin as a therapeutic strategy for medulloblastoma.
FRONTIERS IN PHARMACOLOGY
(2022)
Article
Pharmacology & Pharmacy
Chunxia Chen, Shihai Yan, Zhirong Geng, Zhilin Wang
Summary: The HIF-1 alpha PHD inhibitor IOX2 improves the proliferation and migration of BMSCs by upregulating intracellular Ca2+ and decreasing ROS, thus promoting fracture healing.
EUROPEAN JOURNAL OF PHARMACOLOGY
(2022)
Article
Oncology
Liangping Yuan, Hongying Zhang, Jingbo Liu, Anshu Malhotra, Abhinav Dey, Bing Yu, Kishore Kumar Jella, Leon F. McSwain, Matthew J. Schniederjan, Tobey J. MacDonald
Summary: This study highlights the critical role of STAT3 in Shh MB cells, its essential role in Smo-dependent Shh signaling and drug resistance, and its potential as a therapeutic target to overcome anti-Smo drug resistance in treating Shh MB. Additionally, STAT3 inhibitor treatment significantly prevents tumor formation and synergistic effects with Smo inhibitors in vitro suggest a promising approach for Shh MB treatment.
MOLECULAR ONCOLOGY
(2022)
Article
Toxicology
Bartosz Skora, Martyna Masicz, Patrycja Nowak, Jagoda Lachowska, Paulina Soltysek, Justyna Biskup, Paulina Matuszewska, Konrad A. A. Szychowski
Summary: This study aimed to evaluate the impact of 5-nm AgNPs on the sonic hedgehog (SHH) pathway in the GB cell line (U-87MG) in vitro. The results showed that AgNPs treatment led to a time- and dose-dependent decrease in metabolic activity and an increase in intracellular reactive oxygen species (ROS) level in U-87MG cells. Co-treatment with AgNPs and Robotnikinin (SHH inhibitor) enhanced the effect of AgNPs on SHH mRNA and protein levels. However, further studies are needed to understand the role of mTOR in the response to AgNPs treatment.
ARCHIVES OF TOXICOLOGY
(2023)
Article
Gastroenterology & Hepatology
Pan Cao, Qian Chen, Chun-Xia Shi, Lu-Wen Wang, Zuo-Jiong Gong
Summary: This study suggests that Sirt1 may protect against acute liver failure by inducing the deacetylation of HIF-1 alpha to reduce ROS.
WORLD JOURNAL OF GASTROENTEROLOGY
(2022)
Article
Oncology
Maximillian S. Westphal, Eunjee Lee, Eric E. Schadt, Giselle S. Sholler, Jun Zhu
Summary: This study categorized medulloblastoma into molecular subgroups and found different survival rates among them. By analyzing the expression of molecular markers MYCN and let-7, one subgroup was further divided and it was found that high MYCN expression and high let-7 activity are associated with worse overall survival. These findings provide critical information for personalized treatment options for medulloblastoma.
Review
Clinical Neurology
Nicholas W. Eyrich, Daniel Liesman, Nicole A. Pescatore, Ilyas S. Aleem
Editorial Material
Surgery
Bridger M. Rodoni, Nicholas W. Eyrich, David P. Fessell
Article
Urology & Nephrology
Amir H. Lebastchi, Christopher M. Russell, Yashar S. Niknafs, Nicholas W. Eyrich, Zoey Chopra, Rachel Botbyl, Rana Kabeer, Takahiro Osawa, Javed Siddiqui, Rabia Siddiqui, Matthew S. Davenport, Rohit Mehra, Scott A. Tomlins, Lakshimi P. Kunju, Arul M. Chinnaiyan, John T. Wei, Jeffrey J. Tosoian, Todd M. Morgan
Article
Urology & Nephrology
Jeffrey J. Tosoian, Bruce J. Trock, Todd M. Morgan, Simpa S. Salami, Scott A. Tomlins, Daniel E. Spratt, Javed Siddiqui, Lakshmi P. Kunju, Rachel Botbyl, Zoey Chopra, Balaji Pandian, Nicholas W. Eyrich, Gary Longton, Yingye Zheng, Ganesh S. Palapattu, John T. Wei, Yashar S. Niknafs, Arul M. Chinnaiyan
Summary: The MyProstateScore test has high sensitivity and negative predictive value for ruling out clinically significant prostate cancer in men. It can reduce unnecessary biopsies with low missed detection rates, providing a cost-effective and less invasive approach after initial prostate specific antigen screening.
JOURNAL OF UROLOGY
(2021)
Editorial Material
Surgery
Nicholas W. Eyrich, Juan J. Andino, David P. Fessell
Summary: The Viewpoint advocates for the continuation and enhancement of telehealth practices, with a focus on advancing techniques to ensure accessibility for individuals with limited access to internet and smartphone technologies.
Review
Andrology
Nicholas W. Eyrich, Todd M. Morgan, Jeffrey J. Tosoian
Summary: The use of serum PSA testing for early detection of prostate cancer can reduce cancer-specific mortality, but carries substantial risks including frequent unnecessary prostate biopsies and overdetection of non-aggressive cancers. Clinical validation data for biomarkers with improved specificity for GG >= 2 cancer have been proposed, aiming to improve screening accuracy for clinically significant cancers.
TRANSLATIONAL ANDROLOGY AND UROLOGY
(2021)
Editorial Material
Oncology
Randy A. Vince, Nicholas W. Eyrich, Brandon A. Mahal, Kristian Stensland, Edward M. Schaeffer, Daniel E. Spratt
JOURNAL OF CLINICAL ONCOLOGY
(2022)
Article
Oncology
Nicholas W. Eyrich, John T. Wei, Yashar S. Niknafs, Javed Siddiqui, Chad Ellimoottil, Simpa S. Salami, Ganesh S. Palapattu, Rohit Mehra, Lakshmi P. Kunju, Scott A. Tomlins, Arul M. Chinnaiyan, Todd M. Morgan, Jeffrey J. Tosoian
Summary: This study aimed to evaluate the association between urinary MyProstateScore (MPS) and pathologic grade group in men diagnosed with GG1 prostate cancer. The results showed that MPS was significantly associated with the cancer grade at surgery, with a higher discriminative ability compared to models based on PSA and PSAD.
UROLOGIC ONCOLOGY-SEMINARS AND ORIGINAL INVESTIGATIONS
(2022)
Article
Urology & Nephrology
Jeffrey J. Tosoian, Udit Singhal, Matthew S. Davenport, John T. Wei, Jeffrey S. Montgomery, Arvin K. George, Simpa S. Salami, Stanley G. Mukundi, Javed Siddiqui, Lakshmi P. Kunju, Benjamin P. Tooke, C. Yoonhee Ryder, Sarah P. Dugan, Zoey Chopra, Rachel Botbyl, Yilin Feng, Michael S. Sessine, Nicholas W. Eyrich, Ashley E. Ross, Bruce J. Trock, Scott A. Tomlins, Ganesh S. Palapattu, Arul M. Chinnaiyan, Yashar S. Niknafs, Todd M. Morgan
Summary: The study evaluated the complementary value of urinary MPS testing and mpMRI, finding that MPS is significantly associated with GG>2 cancer, especially performing better in the PIRADS 3 population.
Article
Urology & Nephrology
Christopher J. Warren, Chanan R. Reitblat, Charles A. Ferreri, Nicholas W. Eyrich, Stephanie Daignault-Newton, Juan J. Andino, Hossein Sadeghi-Nejad, Raj S. Pruthi, Kate H. Kraft
Summary: This study examines stakeholders' perspectives on the lack of in-person externships and the transition to a virtual urology residency interview format. The majority of applicants were satisfied with their match outcomes, but unmatched applicants were significantly more likely to be unsatisfied. Most program directors expressed satisfaction with the match outcomes. Although most applicants and program directors recommended retaining an in-person externship option, there was ambivalence regarding the format of interviews for future match cycles.
Editorial Material
Urology & Nephrology
Roberto A. Navarrete, Nicholas W. Eyrich, Kristian D. Stensland
Article
Urology & Nephrology
Nicholas W. Eyrich, Juan J. Andino, Roberta E. Ukavwe, Mark W. Farha, Akshar K. Patel, Daniel Triner, Chad Ellimoottil
Summary: The majority of surgical plans developed during new patient video visits remain unchanged after in-person evaluation. However, changes in clinical course or updated imaging can alter operative plans. Likewise, certain urologic conditions rely on the genitourinary examination to dictate surgical approach.
Article
Oncology
Andi K. Cani, Kevin Hu, Chia -Jen Liu, Javed Siddiqui, Yingye Zheng, Sumin Han, Srinivas Nallandhighal, Daniel H. Hovelson, Lanbo Xiao, Trinh Pham, Nicholas W. Eyrich, Heng Zheng, Randy Vince, Jeffrey J. Tosoian, Ganesh S. Palapattu, Todd M. Morgan, John T. Wei, Aaron M. Udager, Arul M. Chinnaiyan, Scott A. Tomlins, Simpa S. Salami
Summary: A novel urine-based RNA NGS assay can improve the early detection of aggressive prostate cancer by utilizing next-generation sequencing technology and combining multiple biomarkers including gene fusions, long non-coding RNAs, and mutations. The developed detection model outperforms current serum tests and sequencing-derived indexes in predicting aggressive prostate cancer through machine learning.
EUROPEAN UROLOGY ONCOLOGY
(2022)
Article
Oncology
Tiffany Guess, Chad R. Potts, Pawan Bhat, Justin A. Cartailler, Austin Brooks, Clinton Holt, Ashwini Yenamandra, Ferrin C. Wheeler, Michael R. Savona, Jean -Philippe Cartailler, P. Brent Ferrell
Summary: Precise clonal trajectories in MDS progression are uncovered using single-cell genomic sequencing. The study defines the patterns of clonal architecture and evolution driving the transformation to secondary AML. The phenotypic and transcriptional changes of disease progression are further characterized at the single-cell level.
BLOOD CANCER DISCOVERY
(2022)
Article
Oncology
Nicholas W. Eyrich, Kenneth R. Sloss, Ryan A. Howard, Michael P. Klueh, Michael J. Englesbe, Jennifer F. Waljee, Chad M. Brummett, Michael S. Sabel, Lesly A. Dossett, Jay S. Lee
Summary: The study found that opioid prescribing exceeds consumption following common surgical oncology procedures. While most patients received education on taking opioids, few received instructions on proper disposal, leading to a high percentage of unused opioids.
JOURNAL OF SURGICAL ONCOLOGY
(2021)