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https://www.readbyqxmd.com/read/29667444/akt2-sirna-delivery-with-amphiphilic-based-polymeric-micelles-show-efficacy-against-cancer-stem-cells
#1
Diana Rafael, Petra Gener, Fernanda Andrade, Joaquin Seras-Franzoso, Sara Montero, Yolanda Fernández, Manuel Hidalgo, Diego Arango, Joan Sayós, Helena F Florindo, Ibane Abasolo, Simó Schwartz, Mafalda Videira
Development of RNA interference-based therapies with appropriate therapeutic window remains a challenge for advanced cancers. Because cancer stem cells (CSC) are responsible of sustaining the metastatic spread of the disease to distal organs and the progressive gain of resistance of advanced cancers, new anticancer therapies should be validated specifically for this subpopulation of cells. A new amphihilic-based gene delivery system that combines Pluronic® F127 micelles with polyplexes spontaneously formed by electrostatic interaction between anionic siRNA and cationic polyethylenimine (PEI) 10K, was designed (PM)...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29667006/establishment-and-characterization-of-a-c57bl-6-mouse-model-of-bone-metastasis-of-breast-cancer
#2
Toru Hiraga, Tadashi Ninomiya
Bone is one of the most common sites of metastasis in patients with advanced breast cancer; however, the mechanisms of bone metastasis remain to be fully elucidated. Animal models are essential research tools for investigating the mechanisms of diseases and drug actions. To date, there have only been a few reports in which C57BL/6 mice were used for the study of bone metastases of breast cancer. In the current study, we found that intracardiac inoculation of C57BL/6 mouse-derived parental E0771 breast cancer cells (E0771/Pa) frequently lead to bone metastases in C57BL/6 mice within 2 weeks...
April 17, 2018: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29666189/single-cell-rna-seq-reveals-cell-heterogeneity-and-hierarchy-within-mouse-mammary-epithelia
#3
Heng Sun, Zhengqiang Miao, Xin Zhang, Un In Chan, Sek Man Su, Sen Guo, Chris Koon Ho Wong, Xiaoling Xu, Chu-Xia Deng
The mammary gland is very intricately and well organized into distinct tissues, including epithelia, endothelia, adipocytes, and stromal and immune cells. Many mammary gland diseases, such as breast cancer arise from abnormalities in the mammary epithelium, which is mainly composed of two distinct lineages, the basal and luminal cells. Because of the limitation of traditional transcriptome analysis of bulk mammary cells, the hierarchy and heterogeneity of mammary cells within these two lineages remain unclear...
April 17, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29665654/hypericin-affects-cancer-side-populations-via-competitive-inhibition-of-bcrp
#4
Jana Vargová, Jaromír Mikeš, Rastislav Jendželovský, Lucia Mikešová, Barbora Kuchárová, Ľubomír Čulka, Radek Fedr, Ján Remšík, Karel Souček, Alois Kozubík, Peter Fedoročko
OBJECTIVE: Cancer stem-like cells (CSLCs) are considered a root of tumorigenicity and resistance. However, their identification remains challenging. The use of the side population (SP) assay as a credible marker of CSLCs remains controversial. The SP assay relies on the elevated activity of ABC transporters that, in turn, can be modulated by hypericin (HYP), a photosensitizer and bioactive compound of St. John's Wort (Hypericum perforatum), a popular over-the-counter antidepressant. Here we aimed to comprehensively characterize the SP phenotype of cancer cells and to determine the impact of HYP on these cells...
March 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29665439/hyaluronic-acid-conjugated-nanoparticle-delivery-of-sirna-against-twist-reduces-tumor-burden-and-enhances-sensitivity-to-cisplatin-in-ovarian-cancer
#5
Sophia A Shahin, Ruining Wang, Shirleen I Simargi, Altagracia Contreras, Liliana Parra, Louise Qu, Wei Wen, Thanh Dellinger, Juli Unternaehrer, Fuyuhiko Tamanoi, Jeffrey I Zink, Carlotta A Glackin
TWIST protein is critical to development and is activated in many cancers. TWIST regulates epithelial-mesenchymal transition, and is linked to angiogenesis, metastasis, cancer stem cell phenotype, and drug resistance. The majority of epithelial ovarian cancer (EOC) patients with metastatic disease respond well to first-line chemotherapy but most relapse with disease that is both metastatic and drug resistant, leading to a five-year survival rate under 20%. We are investigating the role of TWIST in mediating these relapses...
April 14, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29665144/disulfiram-copper-targets-stem-cell-like-aldh-population-of-multiple-myeloma-by-inhibition-of-aldh1a1-and-hedgehog-pathway
#6
Na Jin, Xiaojian Zhu, Fanjun Cheng, Liling Zhang
Multiple myeloma stem cells (MMSCs) have been considered as the major cause resulting in relapse. Eradicating MMSCs may be an effective strategy to improve the outcome of multiple myeloma (MM). Increased activity of aldehyde dehydrogenase (ALDH) has been found in MMSCs, but whether inhibiting ALDH activity can eliminate MMSCs remains unknown. Disulfiram (DS) has been reported as an inhibitor of ALDH, and increasing studies showed it has anti-cancer effects in a copper (Cu)-dependent manner. In this study, we isolated ALDH+ cells of MM by Aldefluor assay and demonstrated they possessed tumorigenesis capacities in vitro and in vivo...
April 17, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29664602/engineering-persistent-luminescence-nanoparticles-for-biological-applications-from-biosensing-bioimaging-to-theranostics
#7
Shao-Kai Sun, He-Fang Wang, Xiu-Ping Yan
Persistent luminescence nanoparticles (PLNPs) are unique optical materials emitting long-lasting luminescence after ceasing excitation. Such a unique optical feature allows luminescence detection without constant external illumination to avoid the interferences of autofluorescence and scattering light from biological fluids and tissues. Besides, near-infrared (NIR) PLNPs have advantages of deep penetration and the reactivation of the persistent luminescence (PL) by red or NIR light. These features make the application of NIR-emitting PLNPs in long-term bioimaging no longer limited by the lifetime of PL...
April 17, 2018: Accounts of Chemical Research
https://www.readbyqxmd.com/read/29664548/prognostic-significance-of-tem7-and-nestin-expression-in-women-with-advanced-high-grade-serous-ovarian-cancer
#8
Artur Czekierdowski, Norbert Stachowicz, Sylwia Czekierdowska, Tomasz Łoziński, Grzegorz Gurynowicz, Tomasz Kluz
OBJECTIVES: Tumor endothelial marker 7 (TEM7) and nestin have been proposed to be new candidates for neoangiogenesis assessment. Nestin is also cancer stem cells marker in various malignant tumors. AIMS: To investigate the expression of TEM7, nestin and nestin-related microvessel density (MVD) in high-grade serous ovarian cancer samples and to study their correlation with overall survival (OS) and disease-free survival (DFS) times. MATERIAL AND METHODS: Tumor samples obtained from 70 women with FIGO IIIc/IV ovarian serous cancer were studied with immunohistochemistry...
2018: Ginekologia Polska
https://www.readbyqxmd.com/read/29663987/-effects-of-hippo-signaling-on-anti-oxidative-stress-of-mesenchymal-stem-cells-in-vitro
#9
Lang Li, Liang Dong, Jiaojie Hui, Fei Gao, Qiuhui Wang, Lan Yang, Jiangqian Zhang, Jie Yan
OBJECTIVE: To explore the effects of Hippo signaling on anti-oxidative stress of mouse marrow mesenchymal stem cells (mMSCs) in vitro. METHODS: mMSCs derived from C57BL/6 mice were identified using fluorescence-activated cell sorting analysis and the capabilities of osteogenic, chondrogenic and adipogenic differentiation were evaluated. 2-deoxy-D-glucose (2-DG) or XMU-MP-1 was used to modulate Hippo signaling. Oxidative stress was induced by H2 O2 treatment and the effect of oxidative stress induced by H2 O2 on survival of mMSCs was evaluated using methyl thiazolyl tetrazolium (MTT) assay...
April 2018: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/29663636/sleep-and-mood-during-hospitalization-for-high-dose-chemotherapy-and-hematopoietic-rescue-in-pediatric-medulloblastoma
#10
Danielle M Graef, Valerie McLaughlin Crabtree, Deo Kumar Srivastava, Chenghong Li, Michele Pritchard, Pamela S Hinds, Belinda Mandrell
OBJECTIVE: Disrupted sleep is common in pediatric cancer, which is associated with psychological distress and may impact neural recovery. Information regarding sleep during pediatric brain tumor treatment is limited. This study aimed to describe objective sleep-wake patterns and examine the sleep-mood relation in youth hospitalized for intensive chemotherapy and stem cell rescue. METHODS: Participants included 37 patients (M age =9.6 ± 4.2 years) enrolled on a medulloblastoma protocol (SJMB03) and their parents...
April 17, 2018: Psycho-oncology
https://www.readbyqxmd.com/read/29663476/mir-200c-a-tumor-suppressor-that-modulate-the-expression-of-cancer-stem-cells-markers-and-epithelial-mesenchymal-transition-in-colorectal-cancer
#11
Fateme Karimi Dermani, Razieh Amini, Massoud Saidijam, Rezvan Najafi
Colorectal cancer (CRC) is the most frequently diagnosed cancer and the most common gastrointestinal cancer worldwide. Due to the presence of populations of cancer stem cells (CSCs) that cause recurrence, the possibility of cancer treatment is very low. The aim of current study was to evaluate the inhibitory role of miR-200c on EMT, CSCs markers and β-catenin in HCT-116 and SW48 cell lines. The expression of miR-200c, EMT-related genes, CSCs markers, and β-catenin were quantified by qRT-PCR. Further, expression of β-catenin and EMT-related proteins, and migration were analyzed by Western blot, and migration assay kit, respectively...
April 16, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29663359/lncrna-dgcr5-contributes-to-csc-like-properties-via-modulating-mir-330-5p-cd44-in-nsclc
#12
Ren Wang, Hui-Xing Dong, Jian Zeng, Jing Pan, Xiao-Yan Jin
Non-coding RNAs can exert significant roles various cancers, including NSCLC. Previously, we indicated that lncRNA DGCR5 can promote lung cancer progression through inhibiting hsa-mir-22-3p. In our current study, we investigated the role of DGCR5 in cancer stem cell-like properties of NSCLC. CSCs have been recognized as the frequent cause of tumor metastasis, tumor recurrence, and chemotherapy resistance. Here, lung cancer stem cells were successfully enriched from the parental NSCLC A549, H460, and H1299 cells by using tumor sphere formation assays and side population (SP) assays...
April 16, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29663357/hpv16-increases-the-number-of-migratory-cancer-stem-cells-and-modulates-their-mirna-expression-profile-in-oropharyngeal-cancer
#13
Martin Hufbauer, Margaret Maltseva, Jeannine Meinrath, Axel Lechner, Dirk Beutner, Christian U Huebbers, Baki Akgül
Human papillomavirus type 16 (HPV16) is a major risk for development of oropharyngeal squamous-cell-carcinoma (OPSCC). Although HPV+ OPSCC metastasize faster than HPV- tumors, they have a better prognosis. The molecular and cellular alterations underlying this pathobiology of HPV+ OPSCC remain elusive. In this study we examined whether expression of HPV16-E6E7 targets the number of migratory and stationary cancer-stem-cells (CSC). Furthermore, we wanted to elucidate if aberrantly expressed miRNAs in migratory CSC may be responsible for progression of OPSCCs and whether they may serve as potential novel biomarkers for increased potential of metastasis...
April 16, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29662667/genetically-enhanced-t-lymphocytes-and-the-intensive-care-unit
#14
REVIEW
Tiberiu Tat, Huming Li, Catalin-Sorin Constantinescu, Anca Onaciu, Sergiu Chira, Ciprian Osan, Sergiu Pasca, Bobe Petrushev, Vlad Moisoiu, Wilhelm-Thomas Micu, Cristian Berce, Sebastian Tranca, Delia Dima, Ioana Berindan-Neagoe, Jianliang Shen, Ciprian Tomuleasa, Liren Qian
Chimeric antigen receptor-modified T cells (CAR-T cells) and donor lymphocyte infusion (DLI) are important protocols in lymphocyte engineering. CAR-T cells have emerged as a new modality for cancer immunotherapy due to their potential efficacy against hematological malignancies. These genetically modified receptors contain an antigen-binding moiety, a hinge region, a transmembrane domain, and an intracellular costimulatory domain resulting in lymphocyte T cell activation subsequent to antigen binding. In present-day medicine, four generations of CAR-T cells are described depending on the intracellular signaling domain number of T cell receptors...
March 27, 2018: Oncotarget
https://www.readbyqxmd.com/read/29662637/the-wilms-tumor-gene-1-is-a-prognostic-factor-in-myelodysplastic-syndrome-a-meta-analysis
#15
Yanan Jiang, Lin Liu, Jinhuan Wang, Zeng Cao, Zhigang Zhao
Previous studies have suggested that Wilms' tumor gene-1 (WT1) may be related to a decrease in both relapse-free survival (RFS) and overall survival (OS) for patients with myelodysplastic syndrome (MDS). Therefore, we conducted a meta-analysis on the utility of WT1 as a prognostic indicator of MDS. Published reports were searched in the following databases: Cochrane Library, PubMed, Embase, and Web of Science. The meta-analysis was conducted using the Cochrane Collaboration RevMan 5.2 software. Six publications with 450 total patients met the inclusion criteria and were subjected to further examination...
March 23, 2018: Oncotarget
https://www.readbyqxmd.com/read/29662620/promotion-of-malignant-phenotype-after-disruption-of-the-three-dimensional-structure-of-cultured-spheroids-from-colorectal-cancer
#16
Jose M Piulats, Jumpei Kondo, Hiroko Endo, Hiromasa Ono, Takeshi Hagihara, Hiroaki Okuyama, Yasuko Nishizawa, Yasuhiko Tomita, Masayuki Ohue, Kouki Okita, Hidejiro Oyama, Hidemasa Bono, Takashi Masuko, Masahiro Inoue
Individual and small clusters of cancer cells may detach from the edges of a main tumor and invade vessels, which can act as the origin of metastasis; however, the mechanism for this phenomenon is not well understood. Using cancer tissue-originated spheroids, we studied whether disturbing the 3D architecture of cancer spheroids can provoke the reformation process and progression of malignancy. We developed a mechanical disruption method to achieve homogenous disruption of the spheroids while maintaining cell-cell contact...
March 23, 2018: Oncotarget
https://www.readbyqxmd.com/read/29662326/cd133-promotes-adhesion-to-the-ovarian-cancer-metastatic-niche
#17
Lynn Roy, Alexander Bobbs, Rachel Sattler, Jeffrey L Kurkewich, Paige B Dausinas, Prakash Nallathamby, Karen D Cowden Dahl
Cancer stem cells (CSCs) are an attractive therapeutic target due to their predicted role in both metastasis and chemoresistance. One of the most commonly agreed on markers for ovarian CSCs is the cell surface protein CD133. CD133+ ovarian CSCs have increased tumorigenicity, resistance to chemotherapy, and increased metastasis. Therefore, we were interested in defining how CD133 is regulated and whether it has a role in tumor metastasis. Previously we found that overexpression of the transcription factor, ARID3B , increased the expression of PROM1 (CD133 gene) in ovarian cancer cells in vitro and in xenograft tumors...
2018: Cancer Growth and Metastasis
https://www.readbyqxmd.com/read/29662319/clinicopathological-characteristics-and-prognostic-value-of-the-cancer-stem-cell-marker-aldh1-in-ovarian-cancer-a-meta-analysis
#18
Wenge Zhao, Chuanxin Zang, Tingting Zhang, Jia Li, Ruijuan Liu, Fubin Feng, Qingliang Lv, Liang Zheng, Jinhui Tian, Changgang Sun
Background: The clinicopathological and prognostic values of the cancer stem cell marker aldehyde dehydrogenase 1 (ALDH1) in ovarian cancer (OC) remain unknown. The aim of our meta-analysis was to evaluate ALDH1's association with clinicopathological characteristics and its prognostic significance in patients with OC. Materials and methods: PubMed, Embase, and China Biology Medicine were systematically searched for eligible studies (up to October 2017). Pooled odds ratios (ORs) or hazard ratios (HRs) with 95% CIs were used to evaluate the association of ALDH1 expression with clinicopathological features and survival outcomes...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29661104/effect-of-micro-roughening-of-poly-ether-ether-ketone-on-bone-marrow-derived-stem-cell-and-macrophage-responses-and-osseointegration
#19
Sunarso, Akira Tsuchiya, Naoyuki Fukuda, Riki Toita, Kanji Tsuru, Kunio Ishikawa
Poly(ether ether ketone) (PEEK) has emerged as a candidate to replace metal implants because of its satisfactory mechanical properties, radiolucency, and lack of metal allergy. However, PEEK lacks osseointegration ability limiting its clinical applications. To overcome this problem, we prepared PEEK with a micro-rough surface using the sandblast method to modulate its osseointegration property; the sandblast method is simple, cost-effective, and is already applied to clinical metal implants. The surface roughness of the sandblasted PEEK was about 2...
April 16, 2018: Journal of Biomaterials Science. Polymer Edition
https://www.readbyqxmd.com/read/29660692/aggressive-phenotype-of-cells-disseminated-via-hematogenous-and-lymphatic-route-in-breast-cancer-patients
#20
Aleksandra Markiewicz, Anna Nagel, Jolanta Szade, Hanna Majewska, Jaroslaw Skokowski, Barbara Seroczynska, Tomasz Stokowy, Marzena Welnicka-Jaskiewicz, Anna J Zaczek
Intratumoral heterogeneity of breast cancer remains a major challenge in successful treatment. Failure of cancer therapies can also be accredited to inability to systemically eradicate cancer stem cells (CSCs). Recent evidence points to the role of epithelial-mesenchymal transition (EMT) in expanding the pool of tumor cells with CSCs features. Thus, we assessed expression level as well as heterogeneity of CSCs markers in primary tumors (PT), lymph node metastasis (LNM), and circulating tumor cells (CTCs)-enriched blood fractions in order to correlate them with signs of EMT activation as well as clinicopathological data of breast cancer patients...
April 13, 2018: Translational Oncology
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