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pancreas cancer stem cell

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https://www.readbyqxmd.com/read/29337182/human-pancreatic-tumor-organoids-reveal-loss-of-stem-cell-niche-factor-dependence-during-disease-progression
#1
Takashi Seino, Shintaro Kawasaki, Mariko Shimokawa, Hiroki Tamagawa, Kohta Toshimitsu, Masayuki Fujii, Yuki Ohta, Mami Matano, Kosaku Nanki, Kenta Kawasaki, Sirirat Takahashi, Shinya Sugimoto, Eisuke Iwasaki, Junichi Takagi, Takao Itoi, Minoru Kitago, Yuko Kitagawa, Takanori Kanai, Toshiro Sato
Despite recent efforts to dissect the inter-tumor heterogeneity of pancreatic ductal adenocarcinoma (PDAC) by determining prognosis-predictive gene expression signatures for specific subtypes, their functional differences remain elusive. Here, we established a pancreatic tumor organoid library encompassing 39 patient-derived PDACs and identified 3 functional subtypes based on their stem cell niche factor dependencies on Wnt and R-spondin. A Wnt-non-producing subtype required Wnt from cancer-associated fibroblasts, whereas a Wnt-producing subtype autonomously secreted Wnt ligands and an R-spondin-independent subtype grew in the absence of Wnt and R-spondin...
January 10, 2018: Cell Stem Cell
https://www.readbyqxmd.com/read/29201179/gemcitabine-treatment-causes-resistance-and-malignancy-of-pancreatic-cancer-stem-like-cells-via-induction-of-lncrna-hotair
#2
Li Wang, Ping Dong, Weiguo Wang, Mingquan Huang, Bole Tian
Gemcitabine is the first-line chemotherapeutic agent for advanced adenocarcinoma of the pancreas, despite the high risk of chemoresistance as a major disadvantage. In the past few years, significant advances have been made in the field of pancreatic cancer stem-like cells (CSCs) and their critical roles in drug resistance, invasion and metastasis, which are tightly regulated by long non-coding RNAs (lncRNAs). The present study demonstrated that HOX antisense intergenic RNA (HOTAIR) is not different between the pancreatic cancer cell line PANC-1 and its enriched CSC sub-population...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29075792/procoagulant-microparticles-derived-from-cancer-cells-have-determinant-role-in-the-hypercoagulable-state-associated-with-cancer
#3
Aurélie Rousseau, Patrick Van Dreden, Amir Khaterchi, Annette K Larsen, Ismail Elalamy, Grigoris T Gerotziafas
Hypercoagulablity is a common alteration of blood coagulation in cancer patients. However, the procoagulant activity of cancer cells is not sufficient to induce hypercoagulability. The present study was aimed to identify the mechanism with which hypercoagulabilty is produced in the presence of cancer cells. We focused on the analysis of the procoagulant elements carried by cancer cell-derived microparticles (CaCe-dMP) and we evaluated the impact of microparticles associated with the cancer cells from which they stem on thrombin generation...
October 20, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/29044933/cross-tissue-identification-of-somatic-stem-and-progenitor-cells-using-a-single-cell-rna-seq-derived-gene-signature
#4
Petra C Schwalie, Paloma Ordonez Moran, Joerg Huelsken, Bart Deplancke
A long-standing question in biology is whether multipotent somatic stem and progenitor cells (SSPCs) feature molecular properties that could guide their system-independent identification. Population-based transcriptomic studies have so far not been able to provide a definite answer, given the rarity and heterogeneous nature of these cells. Here, we exploited the resolving power of single-cell RNA-sequencing to develop a computational model that is able to accurately distinguish SSPCs from differentiated cells across tissues...
October 16, 2017: Stem Cells
https://www.readbyqxmd.com/read/29017054/the-stromal-niche-for-epithelial-stem-cells-a-template-for-regeneration-and-a-brake-on-malignancy
#5
REVIEW
Kelsey J Roberts, Aaron M Kershner, Philip A Beachy
Stromal restraint of cancer growth and progression-emerging as a widespread phenomenon in epithelial cancers such as bladder, pancreas, colon, and prostate-appears rooted in stromal cell niche activity. During normal tissue repair, stromal niche signals, often Hedgehog-induced, promote epithelial stem cell differentiation as well as self-renewal, thus specifying a regenerating epithelial pattern. In the case of cancerous tissue, stromal cell-derived differentiation signals in particular may provide a brake on malignant growth...
October 9, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28957348/-stealth-dissemination-of-macrophage-tumor-cell-fusions-cultured-from-blood-of-patients-with-pancreatic-ductal-adenocarcinoma
#6
Gary A Clawson, Gail L Matters, Ping Xin, Christopher McGovern, Eric Wafula, Claude dePamphilis, Morgan Meckley, Joyce Wong, Luke Stewart, Christopher D'Jamoos, Naomi Altman, Yuka Imamura Kawasawa, Zhen Du, Loren Honaas, Thomas Abraham
Here we describe isolation and characterization of macrophage-tumor cell fusions (MTFs) from the blood of pancreatic ductal adenocarcinoma (PDAC) patients. The MTFs were generally aneuploidy, and immunophenotypic characterizations showed that the MTFs express markers characteristic of PDAC and stem cells, as well as M2-polarized macrophages. Single cell RNASeq analyses showed that the MTFs express many transcripts implicated in cancer progression, LINE1 retrotransposons, and very high levels of several long non-coding transcripts involved in metastasis (such as MALAT1)...
2017: PloS One
https://www.readbyqxmd.com/read/28718448/neuronal-activity-in-ontogeny-and-oncology
#7
REVIEW
Humsa Venkatesh, Michelle Monje
The nervous system plays a central role in regulating the stem cell niche in many organs, and thereby pivotally modulates development, homeostasis, and plasticity. A similarly powerful role for neural regulation of the cancer microenvironment is emerging. Neurons promote the growth of cancers of the brain, skin, prostate, pancreas, and stomach. Parallel mechanisms shared in development and cancer suggest that neural modulation of the tumor microenvironment may prove a universal theme, although the mechanistic details of such modulation remain to be discovered for many malignancies...
February 2017: Trends in Cancer
https://www.readbyqxmd.com/read/28705007/pancreas-adenocarcinoma-novel-therapeutics
#8
Benjamin A Krantz, Kenneth H Yu, Eileen M O'Reilly
Pancreatic ductal adenocarcinoma (PDAC) is the third highest cause of cancer-related deaths in the US, and is projected to be second only to non-small cell lung cancer (NSCLC) by the 2020s. Current therapies have a modest impact on survival and median overall survival (mOS) across all stages of disease remains under a year. Over the last decade, however, great strides have been made in the understanding of PDAC pathobiology including the role of the tumor microenvironment (TME), DNA damage repair and mechanism of immunosuppression...
June 2017: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/28630946/differentiation-and-inflammation-best-enemies-in-gastrointestinal-carcinogenesis
#9
Nathan M Krah, L Charles Murtaugh
While recent studies demonstrate that cancer can arise from mutant stem cells, this hypothesis does not explain why tissues without defined stem cell populations are susceptible to inflammation-driven tumorigenesis. We propose that chronic inflammatory diseases, such as colitis and pancreatitis, predispose to gastrointestinal (GI) adenocarcinoma by reprogramming differentiated cells. Focusing on colon and pancreas, we discuss recently discovered connections between inflammation and loss of cell differentiation, and propose that dysregulation of cell fate may be a novel rate-limiting step of tumorigenesis...
December 2016: Trends in Cancer
https://www.readbyqxmd.com/read/28445362/effect-of-human-fat-graft-on-breast-cancer-metastasis-in-a-murine-model
#10
Roberto Moltó-García, Virina González-Alonso, María Eloísa Villaverde-Doménech, Edurne Novella-Maestre
BACKGROUND: Isolated adipose stem cells have been reported to encourage migration and early metastasis of breast cancer. Mimicking a surgical situation, the authors developed a human breast cancer model to evaluate in vivo whether human adipose tissue promotes tumor growth and invasion. METHODS: Human adipose tissue was obtained from four patients. The MDA-MB-468 cell line was cultured with a lentiviral vector encoding a puromycin resistance gene and mCherry fluorescent protein...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28385600/mesenchymal-stem-cells-and-differentiated-insulin-producing-cells-are-new-horizons-for-pancreatic-regeneration-in-type-i-diabetes-mellitus
#11
Ayat M Domouky, Ashraf S Hegab, Amal Al-Shahat, Nermin Raafat
BACKGROUND: Diabetes mellitus has become the third human killer following cancer and cardiovascular disease. Millions of patients, often children, suffer from type 1 diabetes (T1D). Stem cells created hopes to regenerate damaged body tissues and restore their function. AIM: This work aimed at clarifying and comparing the therapeutic potential of differentiated and non-differentiated mesenchymal stem cells (MSCs) as a new line of therapy for T1D. METHODS: 40 Female albino rats divided into group I (control): 10 rats and group II (diabetic), III and IV, 10 rats in each, were injected with streptozotocin (50mg/kg body weight)...
April 3, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28335793/thrombus-leukocytes-exhibit-more-endothelial-cell-specific-angiogenic-markers-than-peripheral-blood-leukocytes-do-in-acute-coronary-syndrome-patients-suggesting-a-possibility-of-trans-differentiation-a-comprehensive-database-mining-study
#12
Hangfei Fu, Nish Vadalia, Eric R Xue, Candice Johnson, Luqiao Wang, William Y Yang, Claudette Sanchez, Jun Nelson, Qian Chen, Eric T Choi, Jian-Xing Ma, Jun Yu, Hong Wang, Xiaofeng Yang
BACKGROUND: Current angiogenic therapies for cancers and cardiovascular diseases have not yet achieved expected benefits, which reflects the need for improved understanding of angiogenesis. In this study, we focused on solving the problem of whether tissues have different angiogenic potentials (APs) in physiological conditions and how angiogenesis is regulated in various disease conditions. METHODS: In healthy and diseased human and mouse tissues, we profiled the expression of 163 angiogenic genes, including transcription regulators (TRs), growth factors and receptors (GF/Rs), cytokines and chemokines (C/Cs), and proteases and inhibitors (P/Is)...
March 23, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28248881/a-case-of-mixed-adenoneuroendocrine-carcinoma-of-the-pancreas-immunohistochemical-analysis-for-histogenesis
#13
Masaru Murata, Hidekazu Takahashi, Moyuru Yamada, Misa Song, Masahiro Hiratsuka
RATIONALE: Tumors with multiple histological features, such as adenocarcinomas and neuroendocrine carcinomas, were included as a new category of neuroendocrine carcinomas in the 2010 World Health Organization classification. We recently experienced a rare case of a pancreatic carcinoma with both adenocarcinoma and neuroendocrine carcinoma components, a so-called mixed adenoneuroendocrine carcinoma. PATIENT CONCERNS AND DIAGNOSIS: A 66-year-old man was referred to our hospital with obstructive jaundice...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28201969/vitamin-d-and-cancer-stem-cells-in-the-gastrointestinal-tract
#14
REVIEW
Ming-Xing Li, Long-Fei Li, Lin Zhang, Zan-Gang Xiao, Jing Shen, Wei Hu, Qiang Zeng, Chi-Hin Cho
Vitamin D has been widely used as a dietary supplement for the prevention and treatment of bone disorders. Epidemiological and preclinical studies demonstrated the anticancer action of vitamin D in a variety of cancers including those in the gastrointestinal (GI) tract. In these studies the inhibitory action of vitamin D on cancer stem cells (CSCs) has been a focus and is also an important subject to revolutionize the therapeutic potential of vitamin D on cancer treatment. Here, we summarize the involvement of CSC markers and factors and also their signaling pathways in the development of cancers in the esophagus, stomach, colon, pancreas and also liver...
2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28161480/multifunctionalized-iron-oxide-nanoparticles-for-selective-targeting-of-pancreatic-cancer-cells
#15
Sara Trabulo, Antonio Aires, Alexandra Aicher, Christopher Heeschen, Aitziber L Cortajarena
Nanomedicine nowadays offers novel solutions in cancer therapy by introducing multimodal treatments in one single formulation. In addition, nanoparticles act as nanocarriers changing the solubility, biodistribution and efficiency of the therapeutic molecules, thus generating more efficient treatments and reducing their side effects. To apply these novel therapeutic approaches, efforts are focused on the multi-functionalization of the nanoparticles and will open up new avenues to advanced combinational therapies...
June 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28158262/uncovering-stem-cell-differentiation-factors-for-salivary-gland-regeneration-by-quantitative-analysis-of-differential-proteomes
#16
Yun-Jong Park, Jin Koh, Jin Teak Kwon, Yong-Seok Park, Lijun Yang, Seunghee Cha
Severe xerostomia (dry mouth) compromises the quality of life in patients with Sjögren's syndrome or radiation therapy for head and neck cancer. A clinical management of xerostomia is often unsatisfactory as most interventions are palliative with limited efficacy. Following up our previous study demonstrating that mouse BM-MSCs are capable of differentiating into salivary epithelial cells in a co-culture system, we further explored the molecular basis that governs the MSC reprogramming by utilizing high-throughput iTRAQ-2D-LC-MS/MS-based proteomics...
2017: PloS One
https://www.readbyqxmd.com/read/28137273/quercetin-induced-mir-200b-3p-regulates-the-mode-of-self-renewing-divisions-in-pancreatic-cancer
#17
Clifford C Nwaeburu, Alia Abukiwan, Zhefu Zhao, Ingrid Herr
BACKGROUND: Cancer stem cells are suggested to contribute to the extremely poor prognosis of pancreatic ductal adenocarcinoma and dysregulation of symmetric and asymmetric stem cell division may be involved. Anticancer benefits of phytochemicals like the polyphenol quercetin, present in many fruits, nuts and vegetables, could be expedited by microRNAs, which orchestrate cell-fate decisions and tissue homeostasis. The mechanisms regulating the division mode of cancer stem cells in relation to phytochemical-induced microRNAs are poorly understood...
January 31, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/27956115/future-perspectives-in-adult-stem-cell-turnover-implications-for-endocrine-physiology-and-disease
#18
EDITORIAL
Clara V Alvarez, Fernando Oroz-Gonjar, Montserrat Garcia-Lavandeira
No abstract text is available yet for this article.
April 15, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/27941872/er-stress-protein-agr2-precedes-and-is-involved-in-the-regulation-of-pancreatic-cancer-initiation
#19
L Dumartin, W Alrawashdeh, S M Trabulo, T P Radon, K Steiger, R M Feakins, M P di Magliano, C Heeschen, I Esposito, N R Lemoine, T Crnogorac-Jurcevic
The mechanisms of initiation of pancreatic ductal adenocarcinoma (PDAC) are still largely unknown. In the present study, we analysed the role of anterior gradient-2 (AGR2) in the earliest stages of pancreatic neoplasia. Immunohistochemical analysis of chronic pancreatitis (CP) and peritumoral areas in PDAC tissues showed that AGR2 was present in tubular complexes (TC) and early pancreatic intraepithelial neoplasia (PanINs). Moreover, AGR2 was also found in discrete subpopulations of non-transformed cells neighbouring these pre-neoplastic lesions...
June 1, 2017: Oncogene
https://www.readbyqxmd.com/read/27891292/cancer-stem-cells-cellular-plasticity-niche-and-its-clinical-relevance
#20
Gina Lee, Robert R Hall, Atique U Ahmed
Cancer handles an estimated 7.6 million deaths worldwide per annum. A recent theory focuses on the role Cancer Stem Cells (CSCs) in driving tumorigenesis and disease progression. This theory hypothesizes that a population of the tumor cell with similar functional and phenotypic characteristics as normal tissue stem cells are responsible for formation and advancement of many human cancers. The CSCs subpopulation can differentiate into non-CSC tumor cells and promote phenotypic and functional heterogeneity within the tumor...
October 2016: Journal of Stem Cell Research & Therapy
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