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https://www.readbyqxmd.com/read/29035685/mechanistic-effect-of-human-umbilical-cord-blood-derived-mesenchymal-stem-cells-on-the-submandibular-salivary-gland-in-ovariectomized-rats
#1
Zienab Gouda, Mohamed Khalifa, Sally Shalaby, Samia Hussein
To reveal the effect of human umbilical cord blood-derived mesenchymal stem cells (hUCB-MSCs) on the submandibular gland after bilateral ovariectomy, 21 adult Sprague-Dawley female rats were divided equally into three groups: sham-operated group (SHAM), ovariectomized group (OVX) and OVX received repeated intravenous injection of hUCB-MSCs group (OVX + hUCB-MSCs). RT-PCR for AQP3, AQP4, AQP5 and BMP6 gene expression was determined. The cellular localization and expression of anti-human CD105 anti-human CD34, anti-proliferating nuclear antigen (PCNA), anti-single stranded DNA(ssDNA), anti-Caspase 3, anti-aquaporin 1(AQP1) and anti-α smooth muscle actin(α-SMA) were determined immunohistochemically...
October 16, 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28983091/therapeutic-potential-of-human-minor-salivary-gland-epithelial-progenitor-cells-in-liver-regeneration
#2
Chen Zhang, Yan Li, Xiang-Yu Zhang, Lei Liu, Hai-Zhou Tong, Ting-Lu Han, Wan-di Li, Xiao-Lei Jin, Ning-Bei Yin, Tao Song, Hai-Dong Li, Juan Zhi, Zhen-Min Zhao, Lin Lu
Liver disease is a serious problem affecting millions of people with continually increasing prevalence. Stem cell therapy has become a promising treatment for liver dysfunction. We previously reported on human minor salivary gland mesenchymal stem cells (hMSGMSCs), which are highly self-renewable with multi-potent differentiation capability. In this study, keratinocyte-like cells with self-regeneration and hepatic differentiation potential were isolated and characterized, and named human minor salivary gland epithelial progenitor cells (hMSG-EpiPCs)...
October 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28974616/murine-cytomegalovirus-spreads-by-dendritic-cell-recirculation
#3
Helen E Farrell, Kimberley Bruce, Clara Lawler, Martha Oliveira, Rhonda Cardin, Nicholas Davis-Poynter, Philip G Stevenson
Herpesviruses have coevolved with their hosts over hundreds of millions of years and exploit fundamental features of their biology. Cytomegaloviruses (CMVs) colonize blood-borne myeloid cells, and it has been hypothesized that systemic dissemination arises from infected stem cells in bone marrow. However, poor CMV transfer by stem cell transplantation argues against this being the main reservoir. To identify alternative pathways for CMV spread, we tracked murine CMV (MCMV) colonization after mucosal entry. We show that following intranasal MCMV infection, lung CD11c(+) dendritic cells (DC) migrated sequentially to lymph nodes (LN), blood, and then salivary glands...
October 3, 2017: MBio
https://www.readbyqxmd.com/read/28959167/protective-restorative-role-of-the-adipose-tissue-derived-mesenchymal-stem-cells-on-the-radioiodine-induced-salivary-gland-damage-in-rats
#4
Güleser Saylam, Ömer Bayır, Salih Sinan Gültekin, Ferda Alparslan Pınarlı, Ünsal Han, Mehmet Hakan Korkmaz, Mehmet Eser Sancaktar, İlkan Tatar, Mustafa Fevzi Sargon, Emel Çadallı Tatar
BACKGROUND: To analyze protective/regenerative effects of adipose tissue-derived mesenchymal stem cells (ADMSC) on (131)I-Radioiodine (RAI)-induced salivary gland damage in rats. MATERIALS AND METHODS: Study population consisted of controls (n:6) and study groups (n:54): RAI (Group 1), ADMSC (Group 2), amifostine (Group 3), RAI+amifostine (Group 4), concomitant RAI+ADMSC (Group 5) and RAI+ADMSC after 48 h (Group 6). We used light microscopy (LM), transmission electron microscopy (TEM), and salivary gland scintigraphy (SGS), and analyzed data statistically...
September 2017: Radiology and Oncology
https://www.readbyqxmd.com/read/28928907/adipose-derived-stromal-cell-in-regenerative-medicine-a-review
#5
REVIEW
Reza Tabatabaei Qomi, Mohsen Sheykhhasan
The application of appropriate cell origin for utilizing in regenerative medicine is the major issue. Various kinds of stem cells have been used for the tissue engineering and regenerative medicine. Such as, several stromal cells have been employed as treat option for regenerative medicine. For example, human bone marrow-derived stromal cells and adipose-derived stromal cells (ADSCs) are used in cell-based therapy. Data relating to the stem cell therapy and processes associated with ADSC has developed remarkably in the past 10 years...
August 26, 2017: World Journal of Stem Cells
https://www.readbyqxmd.com/read/28844126/the-effect-of-different-routes-of-injection-of-bone-marrow-mesenchymal-stem-cells-on-parotid-glands-of-rats-receiving-cisplatin-a-comparative-study
#6
Eman Hany, Mohammed A Sobh, Mazen T Abou ElKhier, Heba M ElSabaa, Ahmed R Zaher
Background and Objectives: Cisplatin is a powerful antitumor chemotherapeutic agent that is widely used in the treatment of many cancers but it has many side effects on many organs including salivary glands. Bone marrow is considered to be a rich environment that comprises many types of stem cells of which BMSCs (Bone marrow mesenchymal stem cells) are the most studied with potentiality to differentiate into many cell types. This study was conducted to evaluate the effect of different routes of injection of BMSCs on parotid glands of rats receiving cisplatin...
August 31, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28842747/increased-sox2-expression-in-salivary-gland-carcinoma-ex-pleomorphic-adenoma-progression-an-association-with-adverse-outcome
#7
Bruno Tavares Sedassari, Maria Fernanda Setúbal Destro Rodrigues, Thalita Santana Conceição, Fernanda Viviane Mariano, Venâncio Avancini Ferreira Alves, Fábio Daumas Nunes, Albina Altemani, Suzana Cantanhede Orsini Machado de Sousa
SOX2 is a regulatory factor of embryonic stem cells that has been implicated in carcinogenesis and cancer progression. We aimed to investigate the potential role of SOX2 in the stepwise progression from pleomorphic adenoma (PA) to invasive carcinoma ex pleomorphic adenoma (CXPA), evaluating its prognostic significance as well. Thirty PAs without malignant transformation and 25 CXPAs presenting both luminal or myoepithelial differentiation (7 intracapsular and 18 extracapsular) were evaluated immunohistochemically for SOX2 expression...
August 25, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28767080/intrapancreatic-parenchymal-injection-of-cells-as-a-useful-tool-for-allowing-a-small-number-of-proliferative-cells-to-grow-in-vivo
#8
Masahiro Sato, Issei Saitoh, Tomoya Murakami, Naoko Kubota, Shingo Nakamura, Satoshi Watanabe, Emi Inada
In vivo inoculation of cells such as tumor cells and induced pluripotent stem (iPS)/embryonic stem (ES) cells into immunocompromised mice has been considered as a powerful technique to evaluate their potential to proliferate or differentiate into various cell types originating from three germ cell layers. Subcutaneous grafting and grafting under the kidney capsule have been widely used for this purpose, but there are some demerits such as the requirement of a large number of tumor cells for inoculation and frequent failure of tumorigenesis...
August 2, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28734180/bottom-up-assembly-of-salivary-gland-microtissues-for-assessing-myoepithelial-cell-function
#9
Tugba Ozdemir, Padma Pradeepa Srinivasan, Daniel R Zakheim, Daniel A Harrington, Robert L Witt, Mary C Farach-Carson, Xinqiao Jia, Swati Pradhan-Bhatt
Myoepithelial cells are flat, stellate cells present in exocrine tissues including the salivary glands. While myoepithelial cells have been studied extensively in mammary and lacrimal gland tissues, less is known of the function of myoepithelial cells derived from human salivary glands. Several groups have isolated tumorigenic myoepithelial cells from cancer specimens, however, only one report has demonstrated isolation of normal human salivary myoepithelial cells needed for use in salivary gland tissue engineering applications...
October 2017: Biomaterials
https://www.readbyqxmd.com/read/28688332/regenerative-capacity-of-allogenic-gingival-margin-derived-stem-cells-with-fibrin-glue-on-albino-rats-partially-dissected-submandibular-salivary-glands
#10
Noura Abd El-Latif, Mohamed Abdulrahman, Mohamad Helal, Mohammed E Grawish
OBJECTIVE: To evaluate the possible regenerative effect of allogenic gingival margin-derived stem cells (GMSCs) with or without autologous fibrin glue on partially dissected submandibular salivary glands of albino rats. METHODS: Forty rats were randomly divided into four equal groups. Group I, where no operation was performed, was considered the negative control. Group II rats were considered the positive control and were subjected to a rectangular cut on the outer surface of the center right of the submandibular salivary gland and received no other treatment...
October 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28665982/the-sertad-protein-taranis-plays-a-role-in-polycomb-mediated-gene-repression
#11
Pranabananda Dutta, Willis X Li
The Polycomb group (PcG) proteins have been implicated in epigenetic transcriptional repression in development, stem cell maintenance and in cancer. The chromodomain protein Polycomb (Pc) is a key member of the PcG. Pc binds to the histone mark, trimethylated histone 3 lysine 27 (H3K27me3), to initiate transcriptional repression. How PcG proteins are recruited to target loci is not fully understood. Here we show that the Drosophila SERTA domain protein Taranis (Tara) is involved in transcriptional regulation of Pc target genes...
2017: PloS One
https://www.readbyqxmd.com/read/28649419/identification-of-transcription-factors-that-promote-the-differentiation-of-human-pluripotent-stem-cells-into-lacrimal-gland-epithelium-like-cells
#12
Masatoshi Hirayama, Shigeru B H Ko, Tetsuya Kawakita, Tomohiko Akiyama, Sravan K Goparaju, Atsumi Soma, Yuhki Nakatake, Miki Sakota, Nana Chikazawa-Nohtomi, Shigeto Shimmura, Kazuo Tsubota, Minoru S H Ko
Dry eye disease is the most prevalent pathological condition in aging eyes. One potential therapeutic strategy is the transplantation of lacrimal glands, generated in vitro from pluripotent stem cells such as human embryonic stem cells, into patients. One of the preceding requirements is a method to differentiate human embryonic stem cells into lacrimal gland epithelium cells. As the first step for this approach, this study aims to identify a set of transcription factors whose overexpression can promote the differentiation of human embryonic stem cells into lacrimal gland epithelium-like cells...
2017: NPJ Aging and Mechanisms of Disease
https://www.readbyqxmd.com/read/28615711/identification-and-characterization-of-a-rich-population-of-cd34-mesenchymal-stem-stromal-cells-in-human-parotid-sublingual-and-submandibular-glands
#13
Padma Priya Togarrati, Robson T Sasaki, Mohamed Abdel-Mohsen, Nuntana Dinglasan, Xutao Deng, Shivani Desai, Elaine Emmerson, Elizabeth Yee, William R Ryan, Marcelo C P da Silva, Sarah M Knox, Satish K Pillai, Marcus O Muench
Mesenchymal stem/stromal cells (MSCs) play crucial roles in maintaining tissue homeostasis during physiological turnovers and injuries. Very little is known about the phenotype, distribution and molecular nature of MSCs in freshly isolated human salivary glands (SGs) as most reports have focused on the analysis of cultured MSCs. Our results demonstrate that the cell adhesion molecule CD34 was widely expressed by the MSCs of human major SGs, namely parotid (PAG), sublingual (SLG) and submandibular (SMG) glands...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28587347/effect-of-mesenchymal-stem-cells-on-sj%C3%A3-gren-like-mice-and-the-microrna-expression-profiles-of-splenic-cd4-t-cells
#14
Guang-Feng Ruan, Ling Zheng, Jia-Shu Huang, Wan-Xue Huang, Bang-Dong Gong, Xing-Xing Fang, Xiao-Yu Zhang, Jian-Ping Tang
Mesenchymal stem cells (MSCs) serve immuno-regulatory functions and offer a promising novel treatment for certain autoimmune diseases. The present study investigated the therapeutic effect of mice bone marrow (BM)-MSCs on mice with relatively late stage of Sjögren-like disease and the impact of BM-MSCs on the microRNA (miRNA) expression profiles of splenic CD4+ T cells. Female NOD/Ltj mice were randomized into two groups: The disease group (n=8) and the MSC-treated group (n=8). Female ICR mice served as the healthy control group (n=8)...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28541773/induction-of-salivary-gland-like-cells-from-dental-follicle-epithelial-cells
#15
Q L Xu, A Furuhashi, Q Z Zhang, C M Jiang, T-H Chang, A D Le
The dental follicle (DF), most often associated with unerupted teeth, is a condensation of ectomesenchymal cells that surrounds the tooth germ in early stages of tooth development. In the present study, we aim to isolate epithelial stem-like cells from the human DF and explore their potential differentiation into salivary gland (SG) cells. We demonstrated the expression of stem cell-related genes in the epithelial components of human DF tissues, and these epithelial progenitor cells could be isolated and ex vivo expanded in a reproducible manner...
August 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28537471/characteristics-of-labial-gland-mesenchymal-stem-cells-of-healthy-individuals-and-patients-with-sj%C3%A3-gren-s-syndrome-a-preliminary-study
#16
Shi-Qin Wang, Yi-Xiang Wang, Hong Hua
Sjögren's syndrome (SS) is a systemic autoimmune disease that is characterized by focal lymphocytic infiltration into exocrine organs such as salivary and lacrimal glands, resulting in dry mouth and eyes, and other systemic injuries. There is no curative clinical therapy for SS, and stem cell therapy has shown great potential in this area. The mesenchymal stem cells (MSCs) in the salivary glands of healthy individuals and in patients with SS have not been extensively studied. The aim of this study was to elucidate the characteristics of MSCs from the labial glands of healthy controls and of those from patients with SS to elucidate the related pathogenesis and to uncover potential avenues for novel clinical interventions...
August 15, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28500913/myb-fusions-and-cd-markers-as-tools-for-authentication-and-purification-of-cancer-stem-cells-from-salivary-adenoid-cystic-carcinoma
#17
Alex Panaccione, Yi Zhang, Molly Ryan, Christopher A Moskaluk, Karen S Anderson, Wendell G Yarbrough, Sergey V Ivanov
Cancer stem cells (CSC) are considered the major cause of aggressive tumor behavior, recurrence, metastases, and resistance to radiation, making them an attractive therapeutic target. However, isolation of CSC from tumor tissue and their characterization are challenging due to uncertainty about their molecular markers and conditions for their propagation. Adenoid cystic carcinoma (ACC), which arises predominantly in the salivary glands, is a slow-growing but relentless tumor that frequently invades nerves and metastasizes...
May 2017: Stem Cell Research
https://www.readbyqxmd.com/read/28448600/mscs-feeder-layers-induce-smg-self-organization-and-branching-morphogenesis
#18
Mahmoud Farahat, Gulsan Ara Sathi, Emilio Satoshi Hara, Hiroaki Taketa, Takuo Kuboki, Takuya Matsumoto
Dysfunction of salivary glands leads to several oral health problems, including dental caries, mastication and swallowing dysfunctions and multiple oral infections. Conventional treatments for such condition fell short of providing satisfying therapeutic results. Recent advances in organ regeneration therapy which utilize tissue stem cells to fabricate bioengineered 3D organ buds, have introduced a promising therapeutic tool for full functional organ regeneration. However, finding a sustainable and easily accessible cell source for such approaches is still challenging, especially in case of severely atrophied tissues such as irradiated salivary glands...
2017: PloS One
https://www.readbyqxmd.com/read/28410601/the-diagnosis-and-management-of-nk-t-cell-lymphomas
#19
REVIEW
Eric Tse, Yok-Lam Kwong
Extranodal natural killer (NK)/T-cell lymphoma is an aggressive malignancy of putative NK-cell origin, with a minority deriving from the T-cell lineage. Pathologically, the malignancy occurs in two forms, extranodal NK/T-cell lymphoma, nasal type; and aggressive NK-cell leukaemia. Lymphoma occur most commonly (80%) in the nose and upper aerodigestive tract, less commonly (20%) in non-nasal areas (skin, gastrointestinal tract, testis, salivary gland), and rarely as disseminated disease with a leukemic phase...
April 14, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28337279/agr2-promotes-the-proliferation-migration-and-regulates-epithelial-mesenchymal-transition-in-salivary-adenoid-cystic-carcinoma
#20
Si-Rui Ma, Liang Mao, Wei-Wei Deng, Yi-Cun Li, Lin-Lin Bu, Guang-Tao Yu, Wen-Feng Zhang, Zhi-Jun Sun
Salivary adenoid cystic carcinoma (AdCC) is a common head and neck cancer with the propensity for local spread and distant metastasis. In our previous study, elevated expression of Anterior gradient 2 (AGR2) was detected in head and neck squamous cell carcinoma (HNSCC), associated with epithelial-mesenchymal transition (EMT) and cancer stemness. However, to date, the expression and function of AGR2 in AdCC has yet to be elucidated. In the present study, human AdCC tissue microarrays including 18 cases of normal salivary gland (NSG), 12 cases of pleomorphic adenoma (PMA) and 72 cases of AdCC were employed for immunohistochemical staining analysis...
2017: American Journal of Translational Research
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