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https://www.readbyqxmd.com/read/28328000/cdx2-prognostic-value-in-stage-ii-iii-resected-colon-cancer-is-related-to-cms-classification
#1
C Pilati, J Taieb, R Balogoun, L Marisa, A de Reyniès, P Laurent-Puig
Caudal-type homeobox transcription factor 2 (CDX2) is involved in colon cancer (CC) oncogenesis and has been proposed as a prognostic biomarker in patients with stage II or III CC. We analyzed CDX2 expression in a series of 469 CC typed for the new international consensus molecular subtype (CMS) classification, and we confirmed results in a series of 90 CC. Here, we show that lack of CDX2 expression is only present in the mesenchymal subgroup (CMS4) and in MSI-immune tumors (CMS1) and not in CMS2 and CMS3 colon cancer...
February 27, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28326306/cd44-a-multifunctional-cell-surface-adhesion-receptor-is-a-regulator-of-progression-and-metastasis-of-cancer-cells
#2
REVIEW
Linda T Senbanjo, Meenakshi A Chellaiah
CD44 is a cell surface adhesion receptor that is highly expressed in many cancers and regulates metastasis via recruitment of CD44 to the cell surface. Its interaction with appropriate extracellular matrix ligands promotes the migration and invasion processes involved in metastases. It was originally identified as a receptor for hyaluronan or hyaluronic acid and later to several other ligands including, osteopontin (OPN), collagens, and matrix metalloproteinases. CD44 has also been identified as a marker for stem cells of several types...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28326211/early-onset-signet-ring-cell-adenocarcinoma-of-the-colon-a-case-report-and-review-of-the-literature
#3
Maliha Khan, Krittiya Korphaisarn, Aneeqa Saif, Wai C Foo, Scott Kopetz
Colorectal cancer (CRC) remains the second leading cause of cancer-related deaths in the United States. While a decline has been observed in the older population, the occurrence of CRC in the adolescent and young adult (AYA) population has increased over the past two decades. The histopathologic characteristics and clinical behavior of CRC in AYA patients have been shown to be distinct from those of CRC in older adults. The rarer subtypes of CRC such as mucinous adenocarcinoma and signet-ring cell carcinoma are associated with a poorer prognosis compared to the more common subtypes...
2017: Case Reports in Oncological Medicine
https://www.readbyqxmd.com/read/28316851/pure-primary-ovarian-squamous-cell-carcinoma-perforating-the-rectum
#4
Kazuya Mimura, Aiko Okada, Naotsugu Haraguchi, Kenjiro Sawada, Takuji Tomimatsu, Tadashi Kimura
Rectal perforation is uncommon in ovarian cancer, even in advanced stages. Pure primary ovarian squamous cell carcinoma is a very rare subtype of ovarian cancer and has not been reported to cause rectal perforation. A 50-year-old woman presented with rectal bleeding. Rectosigmoidoscopy suggested perforation of a pelvic tumor into the rectum. Abdominopelvic magnetic resonance imaging revealed a 9 cm heterogeneous mass in the pouch of Douglas. We performed complete cytoreduction, including an en-bloc resection of the tumor and rectosigmoid colon...
2017: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28315202/validation-of-bevacizumab-therapy-effect-on-colon-cancer-subtypes-by-using-whole-body-imaging-in-mice
#5
Ivan Vuletic, Kedi Zhou, Hui Li, Huichen Bai, Xiangxi Meng, Sihao Zhu, Yichen Ding, Jun Li, Hongfang Sun, Qiushi Ren
PURPOSE: Preclinical imaging offers a useful tool for monitoring cancer biological behavior and therapy in vivo without the necessity of animal surgery. The following paper describes our examination of tumor progress and anti-angiogenic therapy with Bevacizumab on colon cancer subtypes (SW480 and SW620) by using different non-invasive real-time in vivo imaging techniques. PROCEDURES: Color Doppler ultrasound imaging (CDUI) was used to observe the formation of new blood vessels; a homemade fluorescence reflectance imaging (FRI) apparatus was mainly used to test the difference in VEGFR2 expression between the tumor subtypes...
March 17, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28300842/cd95-ligand-induces-senescence-in-mismatch-repair-deficient-human-colon-cancer-via-chronic-caspase-mediated-induction-of-dna-damage
#6
Danielle A Raats, Nicola Frenkel, Susanne J van Schelven, Inne HMBorel Rinkes, Jamila Laoukili, Onno Kranenburg
CD95 is best known for its ability to induce apoptosis via a well-characterized pathway involving caspase-mediated proteolytic events. However, in apoptosis-resistant cell lines of diverse cancer types stimulation of CD95 primarily has pro-tumorigenic effects that affect many of the hallmarks of cancer. For instance, in colon cancer cells with a mutant KRAS gene CD95 primarily promotes invasion and metastasis. In the current study, we further investigated the context dependency of the consequences of CD95 activation in colon cancer...
March 16, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28299802/bmp-and-notch-interaction-in-crc-subtypes
#7
Shazia Irshad, Mukesh Bansal, Paolo Guarnieri, Hayley Davis, Ayman Al Haj Zen, Brygida Baran, Claudia Maria Assunta Pinna, Haseeb Rahman, Sujata Biswas, Chiara Bardella, Rosemary Jeffery, Lai Mun Wang, James Edward East, Annabelle Lewis, Ian Tomlinson, Simon John Leedham
The functional role of Bone Morphogenetic Protein (BMP) signalling in colorectal cancer (CRC) is poorly defined, with contradictory results in cancer cell line models reflecting the inherent difficulties of assessing a signalling pathway that is context dependent and subject to genetic constraints. By assessing the transcriptional response of a diploid human colonic epithelial cell line to BMP ligand stimulation we generated a prognostic BMP signalling signature, which was applied to multiple CRC datasets to investigate BMP heterogeneity across CRC molecular subtypes...
March 15, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28290601/ict1-knockdown-inhibits-breast-cancer-cell-growth-via-induction-of-cell-cycle-arrest-and-apoptosis
#8
Chen Wang, Chenlu Liang, Weiliang Feng, Xianghou Xia, Feng Chen, Enqi Qiao, Xiping Zhang, Daobao Chen, Zhiqiang Ling, Hongjian Yang
The protein encoded by immature colon carcinoma transcript 1 (ICT1) is a component of the human mitochondrial ribosome, and is reported to be implicated in cell proliferation, viability and apoptosis of HeLa cells. This study was conducted to investigate the role of ICT1 in human breast cancer. Oncomine database was used to investigate ICT1 expression in human breast cancer tissues compared to normal tissues. The results showed that ICT1 was highly overexpressed in various human breast cancer subtypes. Then short hairpin RNA (shRNA)-mediated knockdown of ICT1 was performed in human breast cancer ZR-75-30 and T-47D cells...
March 9, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28284171/molecular-subtypes-of-metastatic-colorectal-cancer-are-associated-with-patient-response-to-irinotecan-based-therapies
#9
M Del Rio, C Mollevi, F Bibeau, N Vie, J Selves, J-F Emile, P Roger, C Gongora, J Robert, N Tubiana-Mathieu, M Ychou, P Martineau
BACKGROUND: Currently, metastatic colorectal cancer is treated as a homogeneous disease and only RAS mutational status has been approved as a negative predictive factor in patients treated with cetuximab. The aim of this study was to evaluate if recently identified molecular subtypes of colon cancer are associated with response of metastatic patients to first-line therapy. PATIENTS AND METHODS: We collected and analysed 143 samples of human colorectal tumours with complete clinical annotations, including the response to treatment...
March 8, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28277895/serrated-polyps-a-concealed-but-prevalent-precursor-of-colorectal-cancer
#10
Henrik Thorlacius, Yoji Takeuchi, Takashi Kanesaka, Otto Ljungberg, Noriya Uedo, Ervin Toth
Serrated polyps have long been considered to lack malignant potential but accumulating data suggest that these lesions may cause up to one-third of all sporadic colorectal cancer. Serrated polyps are classified into three subtypes, including sessile serrated adenomas/polyps (SSA/Ps), traditional serrated adenomas (TSAs), and hyperplastic polyps (HPs). SSA/P and TSA harbour malignant potential but TSA represents only 1-2%, wheras SSA/P constitute up to 20% of all serrated lesions. HPs are most common (80%) of all serrated polyps but are considered to have a low potential of developing colorectal cancer...
March 9, 2017: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/28275039/right-versus-left-colon-cancer-biology-integrating-the-consensus-molecular-subtypes
#11
REVIEW
Michael S Lee, David G Menter, Scott Kopetz
Although clinical management of colon cancer generally has not accounted for the primary tumor site, left-sided and right-sided colon cancers harbor different clinical and biologic characteristics. Right-sided colon cancers are more likely to have genome-wide hypermethylation via the CpG island methylator phenotype (CIMP), hypermutated state via microsatellite instability, and BRAF mutation. There are also differential exposures to potential carcinogenic toxins and microbiota in the right and left colon. Gene expression analyses further shed light on distinct biologic subtypes of colorectal cancers (CRCs), with 4 consensus molecular subtypes (CMSs) identified...
March 2017: Journal of the National Comprehensive Cancer Network: JNCCN
https://www.readbyqxmd.com/read/28267766/association-of-smad4-mutation-with-patient-demographics-tumor-characteristics-and-clinical-outcomes-in-colorectal-cancer
#12
Amir Mehrvarz Sarshekeh, Shailesh Advani, Michael J Overman, Ganiraju Manyam, Bryan K Kee, David R Fogelman, Arvind Dasari, Kanwal Raghav, Eduardo Vilar, Shanequa Manuel, Imad Shureiqi, Robert A Wolff, Keyur P Patel, Raja Luthra, Kenna Shaw, Cathy Eng, Dipen M Maru, Mark J Routbort, Funda Meric-Bernstam, Scott Kopetz
SMAD4 is an essential mediator in the transforming growth factor-β pathway. Sporadic mutations of SMAD4 are present in 2.1-20.0% of colorectal cancers (CRCs) but data are limited. In this study, we aimed to evaluate clinicopathologic characteristics, prognosis, and clinical outcome associated with this mutation in CRC cases. Data for patients with metastatic or unresectable CRC who underwent genotyping for SMAD4 mutation and received treatment at The University of Texas MD Anderson Cancer Center from 2000 to 2014 were reviewed...
2017: PloS One
https://www.readbyqxmd.com/read/28249812/dietary-patterns-and-risk-of-colorectal-cancer-analysis-by-tumor-location-and-molecular-subtypes
#13
Raaj S Mehta, Mingyang Song, Reiko Nishihara, David A Drew, Kana Wu, Zhi Rong Qian, Teresa T Fung, Tsuyoshi Hamada, Yohei Masugi, Annacarolina da Silva, Yan Shi, Wanwan Li, Mancang Gu, Walter C Willett, Charles S Fuchs, Edward L Giovannucci, Shuji Ogino, Andrew T Chan
BACKGROUND & AIMS: Western and prudent dietary patterns have been associated with higher and lower risks of colorectal cancer (CRC), respectively. However, little is known about associations between dietary patterns and specific anatomic subsite or molecular subtypes of CRC. METHODS: We used multivariable Cox proportional hazards models to examine associations between Western and prudent dietary patterns and CRC risk in the Health Professionals Follow-up Study and Nurses' Health Study...
February 26, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28246088/adiposity-and-cancer-at-major-anatomical-sites-umbrella-review-of-the-literature
#14
Maria Kyrgiou, Ilkka Kalliala, Georgios Markozannes, Marc J Gunter, Evangelos Paraskevaidis, Hani Gabra, Pierre Martin-Hirsch, Konstantinos K Tsilidis
Objective To evaluate the strength and validity of the evidence for the association between adiposity and risk of developing or dying from cancer.Design Umbrella review of systematic reviews and meta-analyses.Data sources PubMed, Embase, Cochrane Database of Systematic Reviews, and manual screening of retrieved references.Eligibility criteria Systematic reviews or meta-analyses of observational studies that evaluated the association between indices of adiposity and risk of developing or dying from cancer...
February 28, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28243118/the-different-functions-and-clinical-significances-of-caveolin-1-in-human-adenocarcinoma-and-squamous-cell-carcinoma
#15
REVIEW
Pin Fu, Fuchun Chen, Qi Pan, Xianda Zhao, Chen Zhao, William Chi-Shing Cho, Honglei Chen
Caveolin-1 (Cav-1), a major structural protein of caveolae, is an integral membrane protein which plays an important role in the progression of carcinoma. However, whether Cav-1 acts as a tumor promoter or a tumor suppressor still remains controversial. For example, the tumor-promoting function of Cav-1 has been found in renal cancer, prostate cancer, tongue squamous cell carcinoma (SCC), lung SCC and bladder SCC. In contrast, Cav-1 also plays an inhibitory role in esophagus adenocarcinoma, lung adenocarcinoma and cutaneous SCC...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28235761/high-throughput-genomic-profiling-of-adult-solid-tumors-reveals-novel-insights-into-cancer-pathogenesis
#16
Ryan J Hartmaier, Lee Albacker, Juliann Chmielecki, Mark Bailey, Jie He, Michael E Goldberg, Shakti Ramkissoon, James Suh, Julia A Elvin, Samuel Chiacchia, Garrett M Frampton, Jeffrey S Ross, Vincent Miller, Philip J Stephens, Doron Lipson
Genomic profiling is widely predicted to become a standard of care in clinical oncology, but more effective data sharing to accelerate progress in precision medicine will be required. Here we describe cancer-associated genomic profiles from 18,004 unique adult cancers. The dataset was composed of 162 tumor subtypes including multiple rare and uncommon tumors. Comparison of alteration frequencies to The Cancer Genome Atlas (TCGA) identified some differences and suggested an enrichment of treatment-refractory samples in breast and lung cancer cohorts...
February 24, 2017: Cancer Research
https://www.readbyqxmd.com/read/28194445/diverse-repetitive-element-rna-expression-defines-epigenetic-and-immunologic-features-of-colon-cancer
#17
Niyati Desai, Dipti Sajed, Kshitij S Arora, Alexander Solovyov, Mihir Rajurkar, Jacob R Bledsoe, Srinjoy Sil, Ramzi Amri, Eric Tai, Olivia C MacKenzie, Mari Mino-Kenudson, Martin J Aryee, Cristina R Ferrone, David L Berger, Miguel N Rivera, Benjamin D Greenbaum, Vikram Deshpande, David T Ting
There is tremendous excitement for the potential of epigenetic therapies in cancer, but the ability to predict and monitor response to these drugs remains elusive. This is in part due to the inability to differentiate the direct cytotoxic and the immunomodulatory effects of these drugs. The DNA-hypomethylating agent 5-azacitidine (AZA) has shown these distinct effects in colon cancer and appears to be linked to the derepression of repeat RNAs. LINE and HERV are two of the largest classes of repeats in the genome, and despite many commonalities, we found that there is heterogeneity in behavior among repeat subtypes...
February 9, 2017: JCI Insight
https://www.readbyqxmd.com/read/28187456/inhibition-and-deficiency-of-the-immunoproteasome-subunit-lmp7-suppress-the-development-and-progression-of-colorectal-carcinoma-in-mice
#18
Julia Koerner, Thomas Brunner, Marcus Groettrup
New treatment options and drug targets for colorectal carcinoma are a pressing medical need. Inflammation and pro-inflammatory cytokines produced by Th1 and Th17 cells like IL-6, TNF, IL-17 and IL-23 promote the development and growth of colorectal cancer (CRC). The immunoproteasome is a proteasome subtype highly expressed in immune cells but also in the intestine. Since the immunoproteasome promotes Th1 and Th17 differentiation and pro-inflammatory cytokine production, we investigated here whether deficiency or inhibition of the immunoproteasome subunit LMP7 would interfere with CRC development and exacerbation in preventive and therapeutic mouse models...
February 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28184012/chromosome-20q-amplification-defines-a-subtype-of-microsatellite-stable-left-sided-colon-cancers-with-wild-type-ras-raf-and-better-overall-survival
#19
Ryan N Ptashkin, Carlos Pagan, Rona Yaeger, Sumit Middha, Jinru Shia, Kevin P O'Rourke, Michael F Berger, Lu Wang, Robert Cimera, Jiajing Wang, David S Klimstra, Leonard Saltz, Marc Ladanyi, Ahmet Zehir, Jaclyn F Hechtman
Here comprehensive analysis was performed on the molecular and clinical features of colorectal carcinoma (CRC) harboring chromosome 20q amplification. Tumor and normal DNA from patients with advanced CRC underwent next generation sequencing (NGS) via MSK-IMPACT and a subset of case samples were subjected to high resolution microarray (Oncoscan). Relationships between genomic copy number and transcript expression were assessed with The Cancer Genome Atlas (TCGA) CRC data. Of the CRC patients sequenced (n=401) with MSK-IMPACT, 148 (37%) had 20q gain, and 30 (7%) had 20q amplification...
February 9, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28125762/association-of-dietary-patterns-with-risk-of-colorectal-cancer-subtypes-classified-by-fusobacterium-nucleatum-in-tumor-tissue
#20
Raaj S Mehta, Reiko Nishihara, Yin Cao, Mingyang Song, Kosuke Mima, Zhi Rong Qian, Jonathan A Nowak, Keisuke Kosumi, Tsuyoshi Hamada, Yohei Masugi, Susan Bullman, David A Drew, Aleksandar D Kostic, Teresa T Fung, Wendy S Garrett, Curtis Huttenhower, Kana Wu, Jeffrey A Meyerhardt, Xuehong Zhang, Walter C Willett, Edward L Giovannucci, Charles S Fuchs, Andrew T Chan, Shuji Ogino
Importance: Fusobacterium nucleatum appears to play a role in colorectal carcinogenesis through suppression of the hosts' immune response to tumor. Evidence also suggests that diet influences intestinal F nucleatum. However, the role of F nucleatum in mediating the relationship between diet and the risk of colorectal cancer is unknown. Objective: To test the hypothesis that the associations of prudent diets (rich in whole grains and dietary fiber) and Western diets (rich in red and processed meat, refined grains, and desserts) with colorectal cancer risk may differ according to the presence of F nucleatum in tumor tissue...
January 26, 2017: JAMA Oncology
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