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2024

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Articles 27241 - 27242 of 27242

Full-Text Articles in Medicine and Health Sciences

A Novel Crispr/Cas9-Mediated Mouse Model Of Colon Carcinogenesis, Hajime Kashima, Anthony Fischer, Daniel A Veronese-Paniagua, Vered A Gazit, Changqing Ma, Yan Yan, Marc S Levin, Blair B Madison, Deborah C Rubin Jan 2024

A Novel Crispr/Cas9-Mediated Mouse Model Of Colon Carcinogenesis, Hajime Kashima, Anthony Fischer, Daniel A Veronese-Paniagua, Vered A Gazit, Changqing Ma, Yan Yan, Marc S Levin, Blair B Madison, Deborah C Rubin

2020-Current year OA Pubs

BACKGROUND & AIMS: Human sporadic colorectal cancer (CRC) results from a multistep pathway with sequential acquisition of specific genetic mutations in the colorectal epithelium. Modeling CRC in vivo is critical for understanding the tumor microenvironment. To accurately recapitulate human CRC pathogenesis, mouse models must include these multi-step genetic abnormalities. The aim of this study was to generate a sporadic CRC model that more closely mimics this multi-step process and to use this model to study the role of a novel Let7 target PLAGL2 in CRC pathogenesis.

METHODS: We generated a CRISPR/Cas9 somatic mutagenesis mouse model that is inducible and multiplexed …


Evolution Of Proton Radiation Therapy Brainstem Constraints On The Pediatric Proton/Photon Consortium Registry, Dora Correia, Stephanie M Perkins, Et Al. Jan 2024

Evolution Of Proton Radiation Therapy Brainstem Constraints On The Pediatric Proton/Photon Consortium Registry, Dora Correia, Stephanie M Perkins, Et Al.

2020-Current year OA Pubs

PURPOSE: Increasing concern that brainstem toxicity incidence after proton radiation therapy might be higher than with photons led to a 2014 University of Florida (UF) landmark paper identifying its risk factors and proposing more conservative dose constraints. We evaluated how practice patterns changed among the Pediatric Proton/Photon Consortium Registry (PPCR).

MATERIAL AND METHODS: This prospective multicenter cohort study gathered data from patients under the age of 22 years enrolled on the PPCR, treated between 2002 and 2019 for primary posterior fossa brain tumors. After standardizing brainstem contours, we garnered dosimetry data and correlated those meeting the 2014 proton-specific brainstem constraint …