نتایج جستجو برای: stemness

تعداد نتایج: 4177  

Journal: :Nature materials 2017
Christopher M Madl Bauer L LeSavage Ruby E Dewi Cong B Dinh Ryan S Stowers Margarita Khariton Kyle J Lampe Duong Nguyen Ovijit Chaudhuri Annika Enejder Sarah C Heilshorn

Neural progenitor cell (NPC) culture within three-dimensional (3D) hydrogels is an attractive strategy for expanding a therapeutically relevant number of stem cells. However, relatively little is known about how 3D material properties such as stiffness and degradability affect the maintenance of NPC stemness in the absence of differentiation factors. Over a physiologically relevant range of sti...

2014
Risheng Ma Simon Bonnefond Syed A. Morshed Rauf Latif Terry F. Davies

BACKGROUND One hypothesis for thyroid cancer development is its derivation from thyroid cancer stem cells (CSCs). Such cells could arise via different paths including from mutated resident stem cells within the thyroid gland or via epithelial to mesenchymal transition (EMT) from malignant cells since EMT is known to confer stem-like characteristics. Furthermore, EMT is a critical process for ep...

2017
Hong-Fang Yang Ming Yu Hui-Dan Jin Jia-Qi Yao Zhi-Li Lu Iddrisu B. Yabasin Qiu Yan Qing-Ping Wen

Cancer pain is a common and severe complication of human breast cancer, and relieving pain is fundamental strategy in the treatment. Fentanyl, as an opioid analgesic, is widely used in breast cancer patients. However, little is known about its effects on stemness and epithelial-mesenchymal transition (EMT) of breast cancer cells. Aberrant protein glycosylation is involved in cancer malignancy. ...

Journal: :Cancer research 2011
Alla Arzumanyan Tiffany Friedman Irene O L Ng Marcia M Clayton Zhaorui Lian Mark A Feitelson

Hepatitis B virus (HBV) is a major etiologic agent of chronic liver disease and hepatocellular carcinoma (HCC). HBV-encoded X antigen, HBx, and pathways implicated in the self-renewal of stem cells contribute to HCC, but it is not clear whether HBx expression promotes "stemness." Thus, experiments were designed to test the hypothesis that HBx triggers malignant transformation by promoting prope...

Various mesenchymal stem cells as easily accessible and multipotent cells can share different essential signaling pathways related to their stemness ability. Understanding the mechanism of stemness ability can be useful for controlling the stem cells for regenerative medicine targets. In this context, OMICs studies can analyze the mechanism of different stem cells properties or stemness ability...

Journal: :Oncotarget 2015
Yun-Li Chang Pei-Jie Zhou Lianzi Wei Wang Li Zhongzhong Ji Yu-Xiang Fang Wei-Qiang Gao

Up to now, the molecular mechanisms underlying the stemness of prostate cancer stem cells (PCSCs) are still poorly understood. In this study, we demonstrated that microRNA-7 (miR-7) appears to be a novel tumor-suppressor miRNA, which abrogates the stemness of PCSCs and inhibits prostate tumorigenesis by suppressing a key stemness factor KLF4. MicroRNA-7 is down-regulated in prostate cancer cell...

2011
Alla Arzumanyan Tiffany Friedman Irene O.L. Ng Marcia M. Clayton Zhaorui Lian Mark A. Feitelson

Hepatitis B virus (HBV) is a major etiologic agent of chronic liver disease and hepatocellular carcinoma (HCC). HBV-encoded X antigen, HBx, and pathways implicated in the self-renewal of stem cells contribute to HCC, but it is not clear whether HBx expression promotes "stemness." Thus, experiments were designed to test the hypothesis that HBx triggers malignant transformation by promoting prope...

Journal: :Bioscience reports 2011
Kou-Juey Wu Muh-Hwa Yang

EMT (epithelial-mesenchymal transition), a major mechanism of cancer metastasis, is a process that generates cells with stem-like properties. These stem-like cells in tumours are described as cancer stem cells. The link between EMT and cancer stemness is well documented without detailed mechanistic proof. Bmi1 belongs to the PRC1 (polycomb repressive complex 1) maintaining self-renewal and stem...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2015
Youzhi Li Harry A Rogoff Sarah Keates Yuan Gao Sylaja Murikipudi Keith Mikule David Leggett Wei Li Arthur B Pardee Chiang J Li

Partial or even complete cancer regression can be achieved in some patients with current cancer treatments. However, such initial responses are almost always followed by relapse, with the recurrent cancer being resistant to further treatments. The discovery of therapeutic approaches that counteract relapse is, therefore, essential for advancing cancer medicine. Cancer cells are extremely hetero...

2016
Jae-Young Lee Sunghyun Park Kwang-Soo Kim Jeong-Jae Ko Soohong Lee Keun Pil Kim Kyung-Soon Park

Sprouty (Spry) genes encode inhibitors of the receptor tyrosine kinase signaling cascade, which plays important roles in stem cells. However, the role of Spry4 in the stemness of embryonic stem cells has not been fully elucidated. Here, we used mouse embryonic stem cells (mESCs) as a model system to investigate the role of Spry4 in the stem cells. Suppression of Spry4 expression results in the ...

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