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https://www.readbyqxmd.com/read/29332347/genetically-engineered-bone-marrow-derived-mesenchymal-stem-cells-co-expressing-ifn-%C3%AE-and-il-10-inhibit-hepatocellular-carcinoma-by-modulating-mapk-pathway
#1
Hao Wang, Jun Wang, Xiaolei Shi, Yitao Ding
PURPOSE: One of the major challenges in delivering cytokines for the treatment of hepatocellular carcinoma (HCC) is the mode of delivery. This study hypothesized that genetically engineered bone marrow derived mesenchymal stem cells (BMSCs) co-expressing IFN-γ and IL-10 can serve as a potential therapeutic strategy in the treatment of HCC by inhibiting cell proliferation. METHODS: Male Sprague-Dawley rats (n=5, 200-250 g) for BMSCs isolation and Nude/SCID mice (n=35,12-20g) to develop liver cancer xenograft model were used...
November 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29331886/anti-cancer-effects-of-hnha-and-lenvatinib-by-the-suppression-of-emt-mediated-drug-resistance-in-cancer-stem-cells
#2
Yong Sang Lee, Seok-Mo Kim, Bup-Woo Kim, Ho Jin Chang, Soo Young Kim, Cheong Soo Park, Ki Cheong Park, Hang-Seok Chang
Anaplastic thyroid cancer (ATC) constitutes less than 2% of total thyroid cancers but accounts for 20-40% of thyroid cancer-related deaths. Cancer stem cell drug resistance represents a primary factor hindering treatment. This study aimed to develop targeted agents against thyroid malignancy, focusing on individual and synergistic effects of HNHA (histone deacetylase), lenvatinib (FGFR), and sorafenib (tyrosine kinase) inhibitors. Patients with biochemically and histologically proven papillary thyroid cancer (PTC) and ATC were included...
January 11, 2018: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/29331758/caspase-3-mapk-pathways-as-main-regulators-of-the-apoptotic-effect-of-the-phyto-mediated-synthesized-silver-nanoparticle-from-dried-stem-of-eleutherococcus-senticosus-in-human-cancer-cells
#3
Chun Gon Kim, Verónica Castro-Aceituno, Ragavendran Abbai, Hyun A Lee, Shakina Yesmin Simu, Yaxi Han, Joon Hurh, Yeon-Ju Kim, Deok Chun Yang
Siberian ginseng (Eleutherococcus senticosus) was used for the synthesis of an ecofriendly silver nanoparticle (Sg-AgNP), which has exhibited antibacterial, antioxidant effect and lower cytotoxicity to normal cells in comparison to human cancer cells. Although, the potential anticancer activity of Sg-AgNP has not been determined. In this study, two cancer cell lines were used to evaluate the cytotoxicity and apoptotic effect of Sg-AgNP along with the determination of the role of the Caspase-3 / p38 MAPK pathways...
January 9, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29331736/dysfunctional-telomeres-and-hematological-disorders
#4
REVIEW
Elena Fiorini, Andrea Santoni, Simona Colla
Telomere biology disorders, which are characterized by telomerase activity haploinsufficiency and accelerated telomere shortening, most commonly manifest as degenerative diseases. Tissues with high rates of cell turnover, such as those in the hematopoietic system, are particularly vulnerable to defects in telomere maintenance genes that eventually culminate in bone marrow (BM) failure syndromes, in which the BM cannot produce sufficient new blood cells. Here, we review how telomere defects induce degenerative phenotypes across multiple organs, with particular focus on how they impact the hematopoietic stem and progenitor compartment and affect hematopoietic stem cell (HSC) self-renewal and differentiation...
January 4, 2018: Differentiation; Research in Biological Diversity
https://www.readbyqxmd.com/read/29331419/the-therapeutic-potential-of-human-adipose-derived-mesenchymal-stem-cells-producing-cxcl10-in-a-mouse-melanoma-lung-metastasis-model
#5
Hamed Mirzaei, Hossein Salehi, Reza Kazemi Oskuee, Ali Mohammadpour, Hamid Reza Mirzaei, Mohammad Reza Sharifi, Reza Salarinia, Hossein Yousofi Darani, Mojgan Mokhtari, Aria Masoudifar, Amirhossein Sahebkar, Rasoul Salehi, Mahmoud Reza Jaafari
Interferon γ-induced protein 10 kDa (IP-10) is a potent chemoattractant and has been suggested to enhance antitumor activity and mediate tumor regression through multiple mechanisms of action. Multiple lines of evidence have indicated that genetically-modified adult stem cells represent a potential source for cell-based cancer therapy. In the current study, we assessed therapeutic potential of human adipose derived mesenchymal stem cells (hADSC) genetically-modified to express IP-10 for the treatment of lung metastasis in an immunocompetent mouse model of metastatic melanoma...
January 10, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29331418/non-coding-rnas-in-cancer-stem-cells
#6
Huiwen Yan, Pengcheng Bu
Cancer stem cells (CSCs) have been shown to play a key role in tumor initiation, progression, metastasis, and therapy resistance. Despite their potential clinical importance, the mechanism of CSC regulation is not well understood. Recent evidence suggests that different types of non-coding RNAs (ncRNA), such as microRNA (miRNA) and long non-coding RNA (LncRNA), play a role in regulating CSC growth and replication by modulating transcription factors and downstream signaling pathways activated in CSCs. Here, we review the recent major findings about how they affect stem cell quality acquisition and maintenance in CSCs, as well as metastasis and therapy resistance...
January 10, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29330806/fluorescence-activated-cell-sorting-of-murine-mammary-cancer-stem-like-cell-subpopulations-with-hif-activity
#7
Danielle L Brooks, Tiffany N Seagroves
Fluorescence-activated cell sorting (FACS) is a common method to identify and to isolate subpopulations within a complex mixture of cells based on their light scatter and fluorescent staining profiles. FACS is widely used to enrich for normal tissue and tumor cells that have stem cell potential. Whereas FACS protocols using conventional breast cancer cell lines are relatively routine, additional technical challenges are encountered when sorting for cell populations from freshly digested solid tumors, particularly for use in downstream cancer stem cell (CSC) assays...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29330805/in-vitro-assays-of-breast-cancer-stem-cells
#8
Debangshu Samanta, Gregg L Semenza
Aldehyde dehydrogenase and mammosphere assays enable the cost-effective quantification and characterization of cancer stem cells (CSCs) from cancer cell lines as well as cancer tissue. Here we describe the quantification of CSCs in breast cancer cell lines using aldehyde dehydrogenase and mammosphere assays under hypoxic (1% O2) and non-hypoxic (20% O2) culture conditions. Using this method, a significant enrichment of CSCs compared to bulk populations is observed when breast cancer cells are exposed to 1% O2 for 72 h...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29330486/new-generation-of-drug-delivery-systems-based-on-ginsenoside-rh2-lysine-and-arginine-treated-highly-porous-graphene-for-improving-anticancer-activity
#9
Hadi Zare-Zardini, Asghar Taheri-Kafrani, Ahmad Amiri, Abdol-Khalegh Bordbar
In this study, Rh2-treated graphene oxide (GO-Rh2), lysine-treated highly porous graphene (Gr-Lys), arginine-treated Gr (Gr-Arg), Rh2-treated Gr-Lys (Gr-Lys-Rh2) and Rh2-treated Gr-Arg (Gr-Arg-Rh2) were synthesized. MTT assay was used for evaluation of cytotoxicity of samples on ovarian cancer (OVCAR3), breast cancer (MDA-MB), Human melanoma (A375) and human mesenchymal stem cells (MSCs) cell lines. The percentage of apoptotic cells was determined by terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) assay...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29330434/targeting-melanoma-stem-cells-with-the-vitamin-e-derivative-%C3%AE-tocotrienol
#10
Monica Marzagalli, Roberta Manuela Moretti, Elio Messi, Marina Montagnani Marelli, Fabrizio Fontana, Alessia Anastasia, Maria Rosa Bani, Giangiacomo Beretta, Patrizia Limonta
The prognosis of metastatic melanoma is very poor, due to the development of drug resistance. Cancer stem cells (CSCs) may play a crucial role in this mechanism, contributing to disease relapse. We first characterized CSCs in melanoma cell lines. We observed that A375 (but not BLM) cells are able to form melanospheres and show CSCs traits: expression of the pluripotency markers SOX2 and KLF4, higher invasiveness and tumor formation capability in vivo with respect to parental adherent cells. We also showed that a subpopulation of autofluorescent cells expressing the ABCG2 stem cell marker is present in the A375 spheroid culture...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29330298/stemness-is-enhanced-in-gastric-cancer-by-a-set-pp2a-e2f1-axis
#11
Shuhei Enjoji, Ryotaro Yabe, Shunya Tsuji, Kazuhiro Yoshimura, Hideyoshi Kawasaki, Masashi Sakurai, Yusuke Sakai, Hiroko Takenouchi, Shigefumi Yoshino, Shoichi Hazama, Hiroaki Nagano, Hiroko Oshima, Masanobu Oshima, Michael P Vitek, Tetsuya Matsuura, Yoshitaka Hippo, Tatsuya Usui, Takashi Ohama, Koichi Sato
Gastric cancer is the fifth most common malignancy and the third leading cause of cancer-related deaths worldwide. Chemotherapies against gastric cancer often fail, with cancer recurrence due potentially to the persistence of cancer stem cells. This unique subpopulation of cells in tumors possess the ability to self-renew and de-differentiate. These cancer stem cells are critical for initiation, maintenance, metastasis, and relapse of cancers; however, the molecular mechanisms supporting cancer stemness remain largely unknown...
January 12, 2018: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29330293/differential-regulation-of-let-7-by-lin28b-isoform-specific-functions
#12
Rei Mizuno, Priya Chatterji, Sarah F Andres, Kathryn E Hamilton, Lauren Simon, Shawn W Foley, Arjun N Jeganathan, Brian D Gregory, Blair B Madison, Anil K Rustgi
The RNA binding protein LIN28B plays an important role in development, stem cell biology and tumorigenesis. LIN28B has two isoforms: the LIN28B-long and -short isoforms. Although studies have revealed the functions of the LIN28B-long isoform in tumorigenesis, the role of the LIN28B-short isoform remains unclear and represents a major gap in the field. The LIN28B-long and -short isoforms are expressed in a subset of human colorectal cancers (CRCs) and adjacent normal colonic mucosa, respectively. To elucidate the functional and mechanistic aspects of these isoforms, CRC cells (Caco-2 and LoVo) were generated to either express no LIN28B or the -short or -long isoform...
January 12, 2018: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29330263/senescence-associated-chromatin-remodeling-promotes-cancer-stemness
#13
(no author information available yet)
Treatment-induced senescence is associated with stem-cell reprogramming of non-stem cancer cells.
January 12, 2018: Cancer Discovery
https://www.readbyqxmd.com/read/29329589/enhanced-metastatic-capacity-of-breast-cancer-cells-after-interaction-and-hybrid-formation-with-mesenchymal-stroma-stem-cells-msc
#14
Catharina Melzer, Juliane von der Ohe, Ralf Hass
BACKGROUND: Fusion of breast cancer cells with tumor-associated populations of the microenvironment including mesenchymal stroma/stem-like cells (MSC) represents a rare event in cell communication whereby the metastatic capacity of those hybrid cells remains unclear. METHODS: Functional changes were investigated in vitro and in vivo following spontaneous fusion and hybrid cell formation between primary human MSC and human MDA-MB-231 breast cancer cells. Thus, lentiviral eGFP-labeled MSC and breast cancer cells labeled with mcherry resulted in dual-fluorescing hybrid cells after co-culture...
January 5, 2018: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/29329541/a-role-for-endothelial-nitric-oxide-synthase-in-intestinal-stem-cell-proliferation-and-mesenchymal-colorectal-cancer
#15
Jon Peñarando, Laura M López-Sánchez, Rafael Mena, Silvia Guil-Luna, Francisco Conde, Vanessa Hernández, Marta Toledano, Victoria Gudiño, Michela Raponi, Caroline Billard, Carlos Villar, César Díaz, José Gómez-Barbadillo, Juan De la Haba-Rodríguez, Kevin Myant, Enrique Aranda, Antonio Rodríguez-Ariza
BACKGROUND: Nitric oxide (NO) has been highlighted as an important agent in cancer-related events. Although the inducible nitric oxide synthase (iNOS) isoform has received most attention, recent studies in the literature indicate that the endothelial isoenzyme (eNOS) can also modulate different tumor processes including resistance, angiogenesis, invasion, and metastasis. However, the role of eNOS in cancer stem cell (CSC) biology and mesenchymal tumors is unknown. RESULTS: Here, we show that eNOS was significantly upregulated in VilCre ERT2 Apc fl/+ and VilCre ERT2 Apc fl/fl mouse intestinal tissue, with intense immunostaining in hyperproliferative crypts...
January 10, 2018: BMC Biology
https://www.readbyqxmd.com/read/29329231/development-of-a-cytocompatible-scaffold-from-pig-immature-testicular-tissue-allowing-human-sertoli-cell-attachment-proliferation-and-functionality
#16
Maxime Vermeulen, Federico Del Vento, Francesca de Michele, Jonathan Poels, Christine Wyns
Cryopreservation of immature testicular tissue before chemo/radiotherapy is the only option to preserve fertility of cancer-affected prepubertal boys. To avoid reintroduction of malignant cells, development of a transplantable scaffold by decellularization of pig immature testicular tissue (ITT) able to support decontaminated testicular cells could be an option for fertility restoration in these patients. We, therefore, compared decellularization protocols to produce a cytocompatible scaffold. Fragments of ITT from 15 piglets were decellularized using three protocols: sodium dodecyl sulfate (SDS)-Triton (ST), Triton-SDS-Triton (TST) and trypsin 0...
January 12, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29328867/glioma-stem-cell-niches-in-human-glioblastoma-are-periarteriolar
#17
Vashendriya V V Hira, Diana A Aderetti, Cornelis J F van Noorden
Survival of primary brain tumor (glioblastoma) patients is seriously hampered by glioma stem cells (GSCs) that are distinct therapy-resistant self-replicating pluripotent cancer cells. GSCs reside in GSC niches, which are specific protective microenvironments in glioblastoma tumors. We have recently found that GSC niches are hypoxic periarteriolar, whereas in most studies, GSC niches are identified as hypoxic perivascular. The aim of this review is to critically evaluate the literature on perivascular GSC niches to establish whether these are periarteriolar, pericapillary, perivenular, and/or perilymphatic...
January 1, 2018: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/29328401/long-non-coding-rna-meg3-functions-as-a-tumour-suppressor-and-has-prognostic-predictive-value-in-human-pancreatic-cancer
#18
Ling Ma, Feng Wang, Chong Du, Zhengkui Zhang, Huahu Guo, Xuehai Xie, Hongqiao Gao, Yan Zhuang, Marko Kornmann, Hong Gao, Xiaodong Tian, Yinmo Yang
Long non-coding RNA (lncRNA) MEG3 has been demonstrated to be a tumour suppressor in many malignancies. However, the functional role of MEG3 in pancreatic cancer (PC) is unclear. In this study, the expression pattern of MEG3 was evaluated in 25 samples of microdissected PC tissues and 8 PC cell lines and was compared to the expression in adjacent non‑cancerous tissues and a human pancreatic normal epithelial cell line. Loss of MEG3 expression was observed in both the cancerous tissues and cancer cell lines...
January 2, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29328395/bioinformatic-identification-of-chemoresistance-associated-micrornas-in-breast-cancer-based-on-microarray-data
#19
Ya-Wen Wang, Weiguo Zhang, Rong Ma
Breast cancer is the most commonly diagnosed cancer among females, and chemoresistance constitutes a major clinical obstacle to the treatment of this disease. MicroRNAs (miRNAs) are related to human cancer development, progression and drug resistance. To identify breast cancer chemoresistance-associated miRNAs, miRNA microarray dataset GSE71142, including five chemoresistant breast cancer tissues and five chemosensitive tissues, was downloaded from the Gene Expression Omnibus (GEO) database. Differentially expressed miRNAs (DE-miRNAs) were obtained by t-test and the potential target genes were predicted by miRWalk2...
January 10, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29328371/cd133-expression-predicts-post-operative-recurrence-in-patients-with-colon-cancer-with-peritoneal-metastasis
#20
Hiroshi Nagata, Soichiro Ishihara, Junko Kishikawa, Hirofumi Sonoda, Koji Murono, Shigenobu Emoto, Manabu Kaneko, Kazuhito Sasaki, Kensuke Otani, Takeshi Nishikawa, Toshiaki Tanaka, Tomomichi Kiyomatsu, Keisuke Hata, Kazushige Kawai, Hiroaki Nozawa
Despite extensive research on cancer stem cells in colorectal cancer, the impact of stem cell markers on patient survival remains unclear, particularly in those with distant metastasis. In this study, we focused on colon cancer with peritoneal metastasis and investigated the association between the expression of CD133, aldehyde dehydrogenase-1 (ALDH1) and leucine-rich repeating G-protein coupled receptor-5 (Lgr5), and disease prognosis. Putative stem cell marker expression was immunohistochemically evaluated in samples from 142 primary tumours and 75 peritoneal nodules...
January 8, 2018: International Journal of Oncology
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