Results 61 to 70 of about 124,795 (370)

Mismatch Repair Deficiency and Microsatellite Instability

Encyclopedia, 2022
Mismatch repair deficiency (MMRd) is caused by the biallelic inactivation of an MMR gene, which can be attributed either to an inherited or an acquired pathway.
Sandra Schöniger, Josef Rüschoff
doaj   +1 more source

Development and Validation of a Deep Learning-Based Microsatellite Instability Predictor from Prostate Cancer Whole-Slide Images [PDF]

arXiv, 2023
Microsatellite instability-high (MSI-H) is a tumor agnostic biomarker for immune checkpoint inhibitor therapy. However, MSI status is not routinely tested in prostate cancer, in part due to low prevalence and assay cost. As such, prediction of MSI status from hematoxylin and eosin (H&E) stained whole-slide images (WSIs) could identify prostate cancer ...
arxiv  

The Role of Palliative Surgery for Malignant Bowel Obstruction and Perforation in Advanced Microsatellite Instability-High Colorectal Carcinoma in the Era of Immunotherapy: Case Report. [PDF]

, 2020
The role of palliative surgery in the management of acute complications in patients with disseminated malignancy remains controversial given the complexity of assessing acute surgical risk and long-term oncologic outcome. With the emergence of checkpoint
Bold, Richard J, Canter, Robert J, Cho, May, Fakih, Marwan, Gangi, Alexandra, Gholami, Sepideh, Gong, Jun, Ji, Jingran, Judge, Sean J, Kaur, Manmeet, Kim, Edward, Kirane, Amanda R, Liu, James, Tam, Kit W   +13 more
core  

Deep Learning based Prediction of MSI using MMR Markers in Colorectal Cancer [PDF]

arXiv, 2022
The accurate diagnosis and molecular profiling of colorectal cancers are critical for planning the best treatment options for patients. Microsatellite instability (MSI) or mismatch repair (MMR) status plays a vital role in appropriate treatment selection, has prognostic implications and is used to investigate the possibility of patients having ...
arxiv  

Mitochondrial DNA alteration in primary and metastatic colorectal cancer: Different frequency and association with selected clinicopathological and molecular markers

Tumor Biology, 2017
This study attempts to determine whether primary tumor tissue could reliably represent metastatic colorectal cancer in therapy-guiding analysis of mitochondrial microsatellite instability.
Britta Kleist, Thuja Meurer, Micaela Poetsch   +2 more
doaj   +1 more source

A Study of Thymidylate Synthase Expression as a Biomarker for Resectable Colon Cancer: Alliance (Cancer and Leukemia Group B) 9581 and 89803. [PDF]

, 2017
PurposeTumor levels of thymidylate synthase (TS), a target of 5-fluorouracil (5-FU)-based chemotherapy for colorectal cancer, have been studied as a predictive or prognostic biomarker with mixed results.Patients and methodsTumor TS levels were ...
Bertagnolli, Monica M, Colacchio, Thomas A, Compton, Carolyn C, Fuchs, Charles S, Goldberg, Richard M, Hasson, Rian M, Lenz, Heinz-Josef, Mayer, Robert J, Niedzwiecki, Donna, Ogino, Shuji, Redston, Mark, Saltz, Leonard B, Warren, Robert S, Ye, Cynthia   +13 more
core   +1 more source

Cell‐free DNA aneuploidy score as a dynamic early response marker in prostate cancer

Molecular Oncology, EarlyView.
mFast‐SeqS‐based genome‐wide aneuploidy scores are concordant with aneuploidy scores obtained by whole genome sequencing from tumor tissue and can predict response to ARSI treatment at baseline and, at an early time point, to ARSI and taxanes. This assay can be easily performed at low cost and requires little input of cfDNA. Cell‐free circulating tumor
Khrystany T. Isebia, Anouk C. de Jong, Lisanne F. van Dessel, Vanja de Weerd, Corine Beaufort, Jean Helmijr, José Alberto Nakauma‐González, Job van Riet, Paul Hamberg, Daniel Vis, Michiel S. van der Heijden, Nick Beije, Martijn P. Lolkema, Teoman Deger, Saskia M. Wilting, Ronald de Wit, Maurice P. H. M. Jansen, John W. M. Martens   +17 more
wiley   +1 more source

Fusobacterium nucleatum infection correlates with two types of microsatellite alterations in colorectal cancer and triggers DNA damage

Gut Pathogens, 2020
Fusobacterium nucleatum (Fn) is frequently found in colorectal cancers (CRCs). High loads of Fn DNA are detected in CRC tissues with microsatellite instability-high (MSI-H), or with the CpG island hypermethylation phenotype (CIMP).
Yoshiki Okita, Minoru Koi, Koki Takeda, Ryan Ross, Bhramar Mukherjee, Erika Koeppe, Elena M. Stoffel, Joseph A. Galanko, Amber N. McCoy, Temitope O. Keku, Yoshinaga Okugawa, Takahito Kitajima, Yuji Toiyama, Eric Martens, John M. Carethers   +14 more
doaj   +1 more source

Microsatellite unstable colorectal cancers are associated with increased CD1a- and CD83-positive dendritic cell infiltration

Biotechnology & Biotechnological Equipment, 2023
Microsatellite instability (MSI) is characterized by a highly immunogenic tumor phenotype and abundant lymphocytic infiltrates. The aim of this study was to investigate the association between four immunohistochemically determined classes of dendritic ...
Maya Gulubova, Elina Aleksandrova, Yovcho Yovchev, Dimitar Chonov, Petio Chilingirov, Tatyana Vlaykova   +5 more
doaj   +1 more source

Local Attention Graph-based Transformer for Multi-target Genetic Alteration Prediction [PDF]

arXiv, 2022
Classical multiple instance learning (MIL) methods are often based on the identical and independent distributed assumption between instances, hence neglecting the potentially rich contextual information beyond individual entities. On the other hand, Transformers with global self-attention modules have been proposed to model the interdependencies among ...
arxiv