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Evgeniya V Kaigorodova, Olga E Savelieva, Liubov A Tashireva, Natalia A Tarabanovskaya, Elena I Simolina, Evgeny V Denisov, Elena M Slonimskaya, Evgeny L Choynzonov, Vladimir M Perelmuter
The biological properties of circulating tumor cells (CTCs), and their dynamics during neoadjuvant chemotherapy are important, both for disease progression prediction and therapeutic target determination, with the aim of preventing disease progression. The aim of our study was to estimate of different CTC subsets in breast cancer during the NACT (neoadjuvant chemotherapy). The prospective study includes 27 patients with invasive breast cancer, T2-4N0-3M0, aged 32 to 60 years. Venous heparinized blood samples, taken before and after biopsy, after each courses of chemotherapy (on days 3-7), and before surgical intervention, served as the material for this study...
March 22, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Rouzbeh R Taghizadeh, Kyle J Cetrulo, Curtis L Cetrulo
Enzymes are commonly used as a biochemical means to liberate cells from a host of tissues for use in in vitro studies and/or in vivo transplantations. However, very little understanding exists of the biological and functional effects that enzymes have on cells during the process of releasing the native cells from a given tissue. One specific reason for this is that no technology has existed as a nonenzymatic control to compare baseline biology and function for a given processed tissue. We have developed a sterile, onetime use, disposable system (referred to as the AuxoCell Processing System or AC:Px®) that allows for processing of solid tissue in a closed, standardized system using mechanical means to liberate cells without the need and/or use of any biochemical, enzymatic digestion...
January 2018: Cell Transplantation
Ki-Chun Yoo, Yongjoon Suh, Yoojeong An, Hae-June Lee, Ye Ji Jeong, Nizam Uddin, Yan-Hong Cui, Tae-Hoon Roh, Jin-Kyoung Shim, Jong Hee Chang, Jong Bae Park, Min-Jung Kim, In-Gyu Kim, Seok-Gu Kang, Su-Jae Lee
Ionizing radiation is widely used for patient with glioblastoma (GBM). However, the effect of radiation on patient survival is marginal and upon recurrence tumors frequently shift toward mesenchymal subtype adopting invasiveness. Here, we show that ionizing radiation affects biomechanical tension in GBM microenvironment and provides proinvasive extracellular signaling cue, hyaluronic acid (HA)-rich condition. In response to radiation, HA production was increased in GBM cells by HA synthase-2 (HAS2) that was transcriptionally upregulated by NF-ĸB...
March 21, 2018: Oncogene
Seyedmehdi Hossaini Nasr, Anne Tonson, Mohammad El-Dakdouki, David C Zhu, Dalen Agnew, Robert Wiseman, Chunqi Qian, Xuefei Huang
Atherosclerosis is an inflammatory disease of arterial walls and the rupturing of atherosclerotic plaques is a major cause of heart attack and stroke. Imaging techniques that can enable the detection of atherosclerosis plaques before clinical manifestation are urgently needed. Magnetic resonance imaging (MRI) is a powerful technique to image the morphology of atherosclerotic plaques. In order to better analyze molecular processes in plaques, contrast agents that can selectively bind to plaque receptors will prove invaluable...
March 20, 2018: ACS Applied Materials & Interfaces
Chun-Yuan Chen, Shan-Shan Rao, Lu Ren, Xiong-Ke Hu, Yi-Juan Tan, Yin Hu, Juan Luo, Yi-Wei Liu, Hao Yin, Jie Huang, Jia Cao, Zhen-Xing Wang, Zheng-Zhao Liu, Hao-Ming Liu, Si-Yuan Tang, Ran Xu, Hui Xie
Chronic non-healing wounds represent one of the most common complications of diabetes and need advanced treatment strategies. Exosomes are key mediators of cell paracrine action and can be directly utilized as therapeutic agents for tissue repair and regeneration. Here, we explored the effects of exosomes from human urine-derived stem cells (USC-Exos) on diabetic wound healing and the underlying mechanism. Methods: USCs were characterized by flow cytometry and multipotent differentiation potential analyses...
2018: Theranostics
Jiao Ji, Yan Yu, Zhi-Ling Li, Ming-Yuan Chen, Rong Deng, Xiang Huang, Guang-Feng Wang, Meng-Xia Zhang, Qi Yang, Senthilkumar Ravichandran, Gong-Kan Feng, Xue-Lian Xu, Chen-Lu Yang, Miao-Zhen Qiu, Lin Jiao, Dajun Yang, Xiao-Feng Zhu
Rationale: Nasopharyngeal carcinoma (NPC) is the most frequent head and neck tumor in South China. The presence of cancer stem cells (CSCs) in NPC contributes to tumor maintenance and therapeutic resistance, while the ability of CSCs to escape from the apoptosis pathway may render them the resistant property to the therapies. Inhibitor of apoptosis proteins family proteins (IAPs), which are overexpressed in nasopharyngeal carcinoma stem cells, may play an important role in maintaining nasopharyngeal cancer stem cell properties...
2018: Theranostics
Stephen Keysar, Justin Eagles, Bettina Miller, Brian C Jackson, Farshad N Chowdhury, Julie Reisinger, Tugs-Saikhan Chimed, Phuong N Le, J Jason Morton, Hilary Somerset, Marileila Varella-Garcia, Aik-Choon Tan, John I Song, Daniel W Bowles, Mary E Reyland, Antonio Jimeno
PURPOSE: Salivary gland cancers (SGC) frequently present with distant metastases many years after diagnosis, suggesting a cancer stem cell (CSC) subpopulation that initiates late recurrences; however current models are limited both in their availability and suitability to characterize these rare cells. EXPERIMENTAL DESIGN: Patient-derived xenografts (PDX) were generated by engrafting patient tissue onto nude mice from one acinic cell carcinoma (AciCC), four adenoid cystic carcinoma (ACC), and three mucoepidermoid carcinoma (MEC) cases, which were derived from successive relapses from the same MEC patient...
March 19, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
Michail Mitsis, George A Alexiou, Evrysthenis Vartholomatos, Georgios Markopoulos, Diamanto Lazari, Entela Hodaj, Dimitrios Nastos, Panagiota Zagorianakou, Vasiliki Galani, Athanasios P Kyritsis
PURPOSE: Breast cancer is the most commonly diagnosed malignancy among women. Breast cancer cells may develop resistance to current chemotherapy, thus new chemotherapeutic agents are urgently needed. METHODS: A major number of drugs with anticancer activity have been isolated from plants. Herewith, we investigated for the first time the effect of N-(p-coumaroyl) serotonin (CS), isolated from Centaurea seed on a drug-resistant breast carcinoma (MCF-7) cells. Viability and proliferation of the cells were examined with trypan blue exclusion assay and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay...
January 2018: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
Bo Hu, Yuanyuan Ma, Yue Yang, Lijian Zhang, Haibo Han, Jinfeng Chen
Cluster of differentiation 44 (CD44), a marker for cancer stem cells, has been reported to be associated with poor prognosis in non-small cell lung cancer (NSCLC), but its involvement in tumor growth has not fully been elucidated. The present study explored the associations between CD44 expression and clinicopathological features using immunohistochemistry in 94 NSCLC cases, as well as proliferation in cells with aberrant expression of this protein. Overexpression of CD44 was achieved by transfecting H1299 cells with CD44 expression vectors, and inhibition of CD44 expression was performed by transfecting small interfering RNAs into A549 cells...
April 2018: Oncology Letters
Harriet C Fitzgerald, Jemma Evans, Nicholas Johnson, Giuseppe Infusini, Andrew Webb, Luk J R Rombauts, Beverley J Vollenhoven, Lois A Salamonsen, Tracey A Edgell
The regenerative, proliferative phase of a woman's menstrual cycle is a critical period which lays the foundation for the subsequent, receptive secretory phase. Although endometrial glands and their secretions are essential for embryo implantation and survival, the proliferative phase, when these glands form, has been rarely examined. We hypothesized that alterations in the secreted proteome of the endometrium of idiopathic infertile women would reflect a disturbance in proliferative phase endometrial regeneration...
March 13, 2018: Biology of Reproduction
Yuan Yuan, Lin Shi, Shijun Wang
Cerebroma, a nervous system tumor located in the cranial cavity, seriously affects health and may even become life-threatening. The aim of the study was to investigate and discuss the expression levels of cluster of differentiation 44 (CD44) and Golgi protein 73 (GP73) in different types of cerebroma tissues and to study the correlations of CD44 and GP73. Reverse transcription-polymerase chain reaction (RT-PCR) was used to detect the mRNA expression levels of CD44 and GP73 in four kinds of cerebroma. The immunohistochemical streptavidin-biotin complex (SABC) method was applied to measure the expression levels of CD44 and GP73 in different types of cerebroma...
April 2018: Oncology Letters
Weiwei Qian, Xiaochuan Kong, Tao Zhang, Dengdian Wang, Jin Song, Yuan Li, Xiaoting Li, Hao Geng, Jie Min, Qi Kong, Jie Liu, Zhiqi Liu, Daming Wang, Zhiqiang Zhang, Dexin Yu, Caiyun Zhong
Cancer stem cells (CSCs) are essentially responsible for tumor initiation, growth, progression, metastasis and recurrence, and cigarette smoke (CS) is closely involved in the occurrence and development of kidney cancer. However, the effect of CS on renal CSCs has not been elucidated yet. In the present study, tumorsphere formation assay was used to enrich renal CSCs from 786-O and ACHN cells. We illustrated that CS effectively promoted renal CSCs stemness by enhancing tumorsphere formation, increasing the expression of renal CSCs markers (CD133, CD44, ALDHA1, Oct4, and Nanog) and elevating CD133+ cell population...
March 13, 2018: Oncogenesis
Marianna Caterino, Miriam Zacchia, Michele Costanzo, Giuliana Bruno, Davide Arcaniolo, Francesco Trepiccione, Rosa Anna Siciliano, Maria Fiorella Mazzeo, Margherita Ruoppolo, Giovambattista Capasso
BACKGROUND: /Aims: Renal disease is a common cause of morbidity in patients with Bardet-Biedl syndrome (BBS), however the severity of kidney dysfunction is highly variable. To date, there is little information on the pathogenesis, the risk and predictor factors for poor renal outcome in this setting. The present study aims to analyze the spectrum of urinary proteins in BBS patients, in order to potentially identify 1) disease-specific proteomic profiles that may differentiate the patients from normal subjects; 2) urinary markers of renal dysfunction...
March 8, 2018: Kidney & Blood Pressure Research
Anthony R Vega, Spencer A Freeman, Sergio Grinstein, Khuloud Jaqaman
Molecular interactions are often transient and might change within the window of observation, leading to changes in molecule movement. Therefore, accurate motion analysis often requires transient motion classification. Here we present an accurate and computationally efficient transient mobility analysis framework, termed "divide-and-conquer moment scaling spectrum" (DC-MSS). DC-MSS works in a multistep fashion: 1) it utilizes a local movement descriptor throughout a track to divide it into initial segments of putatively different motion classes; 2) it classifies these segments via moment scaling spectrum (MSS) analysis of molecule displacements; and 3) it uses the MSS analysis results to refine the track segmentation...
March 13, 2018: Biophysical Journal
Hiba Saeed A Bagader Al-Amodi, Enas Samir Nabih, Hala Fawzy M Kamel, Mohamed Ali El Sayed, Ibrahim Aly Mohamed Dwedar
Altered metabolism is one of the characteristics of cancer cells. We evaluated the expression of wild-type Isocitrate Dehydrogenase 1 (IDH1) and the cancer stem cells (CSCs) marker CD44 by real-time PCR and levels of reduced form of glutathione in lung biopsies of 32 adenocarcinoma patients and 18 control subjects. We found that IDH1 and CD44 expression and the levels of reduced form of glutathione were significantly higher in lung adenocarcinoma patients. IDH1 was positively correlated with CD44 and reduced form of glutathione...
March 14, 2018: Cancer Investigation
Tulika Mitra, Parash Prasad, Pritha Mukherjee, Susri Ray Chaudhuri, Urmi Chatterji, Sib S Roy
Ovarian cancer (OC) is the fourth most common gynecological malignancy due to its highly aggressive, recurrent, and drug-resistant nature. The last two features are rendered by the presence of cancer stem cells (CSCs). Factors like TGFβ1 and their downstream signaling pathways are upregulated in most cancers and are known to induce EMT and stemness, but the exact mechanisms underlying the process remain unelucidated. In our study, TGFβ1 induced enhanced stem-like properties like high expression of the pluripotent markers SOX2, OCT4a, and NANOG, along with CD44, and CD117 in the OC cells...
March 14, 2018: Journal of Cellular Biochemistry
Sandra Bien-Möller, Ellen Balz, Susann Herzog, Laura Plantera, Silke Vogelgesang, Kerstin Weitmann, Carolin Seifert, Matthias A Fink, Sascha Marx, Angela Bialke, Chitra Venugopal, Sheila K Singh, Wolfgang Hoffmann, Bernhard H Rauch, Henry W S Schroeder
Patients with glioblastoma multiforme (GBM) are at high risk to develop a relapse despite multimodal therapy. Assumedly, glioma stem cells (GSCs) are responsible for treatment resistance of GBM. Identification of specific GSC markers may help to develop targeted therapies. Here, we performed expression analyses of stem cell (ABCG2, CD44, CD95, CD133, ELF4, Nanog, and Nestin) as well as differentiation and microglia markers (GFAP, Iba1, and Sparc) in GBM compared to nonmalignant brain. Furthermore, the role of these proteins for patient survival and their expression in LN18 stem-like neurospheres was analyzed...
2018: Stem Cells International
Poonam Parashar, Meena Rathor, Monika Dwivedi, Shubhini A Saraf
Lung carcinoma is the most common cancer in men and second in women (preceded by breast cancer) worldwide. Around 1 in 10 of all cancers diagnosed in men, lung cancer contributed to a total fraction of 20% cancer deaths. Naringenin (NAR) is well known for its chemopreventive properties since ancient times but lacks an appropriate delivery carrier. The objective of present study was to expand the functionality of naringenin loaded poly caprolactone (PCL) nanoparticles in terms of release, chemoprevention and therapeutics...
March 12, 2018: Pharmaceutics
Heloisa H M Della-Colleta, Hernandes F Carvalho
Hyaluronan (HA) has been implicated in tissue remodeling, healing, and tumor growth. This study investigated the variation in hyaluronan content, distribution, and metabolism in the rat ventral prostate in response to androgen deprivation after castration. Hyaluronan synthases (HAS 1-3) and hyaluronidases (Hyal 1-3) mRNA abundance and CD44 (a HA receptor) distribution were assessed by RT-PCR and immunohistochemistry, respectively. The results demonstrated an increasingly concentration, but an overall reduction of HA content...
March 13, 2018: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
Jianqin Tang, Huige Zhou, Xiaoyang Hou, Liming Wang, Yaxi Li, Yanyu Pang, Chunying Chen, Guan Jiang, Yanqun Liu
Chemotherapy is an important treatment for malignant tumors; however, its efficacy and clinical application are limited by its side effects and drug resistance properties. Chemotherapy and phototherapy exhibit synergistic anti-tumor effects. In the present study, a carboxylated poly(amido-amine) (PAMAM) with low cytotoxicity was synthesized as a delivery nanocarrier for loading chemotherapeutic drugs, temozolomide (TMZ), and fluorescent dye indocyanine green (ICG). Hyaluronic acid (HA), which targets the CD44-overexpressing cancer cells, was modified on the nanocarrier surface to enhance the selective killing of melanoma cells...
March 7, 2018: Cancer Letters
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