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Transdifferentiation

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https://www.readbyqxmd.com/read/28812143/serotonin-in-psychiatry-in-vitro-disease-modeling-using-patient-derived-neurons
#1
REVIEW
Krishna C Vadodaria, Shani Stern, Maria C Marchetto, Fred H Gage
Several lines of evidence implicate serotonin in the etiology of multiple psychiatric disorders, especially mood disorders, such as major depressive disorder (MDD) and bipolar disorder (BD). Much of our current understanding of biological mechanisms underlying serotonergic alterations in mood disorders comes from animal studies. Innovation in induced pluripotent stem cell and transdifferentiation technologies for deriving neurons from adult humans has enabled the study of disease-relevant cellular phenotypes in vitro...
August 15, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28809431/transdifferentiation-of-myoblasts-into-osteoblasts-possible-use-for-bone-therapy
#2
REVIEW
Daphne P L Lin, Revathy Carnagarin, Arun Dharmarajan, Crispin R Dass
OBJECTIVES: Transdifferentiation is defined as the conversion of one cell type to another and is an ever-expanding field with a growing number of cells found to be capable of such a process. To date, the fact remains that there are limited treatment options for fracture healing, osteoporosis and bone repair post-destruction by bone tumours. Hence, this review focuses on the transdifferentiation of myoblast to osteoblast as a means to further understand the transdifferentiation process and to investigate a potential therapeutic option if successful...
August 15, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28808446/neuron-specific-fluorescence-reporter-based-live-cell-tracing-for-transdifferentiation-of-mesenchymal-stem-cells-into-neurons-by-chemical-compound
#3
Do Won Hwang, Hyun Woo Kwon, Jaeho Jang, Hee Jung Jung, Kwang Rok Kim, Dong Soo Lee
Although transdifferentiation of mesenchymal stem cells (MSCs) into neurons increases the possibility of therapeutic use of MSCs for neurodevelopmental disorders, the use of MSCs has the limitation on differentiation efficiency to neuronal lineage and lack of an easy method to monitor the transdifferentiation. In this study, using time-lapse live cell imaging, we assessed the neuronal differentiation of MSCs induced by a small molecule "NHPDQC (N-hydroxy-2-oxo-3-(3-phenylprophyl)-1,2-dihydroquinoxaline-6-carboxamide, C18H17N3O3)...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28807717/myofibroblast-transdifferentiation-the-dark-force-in-ocular-wound-healing-and-fibrosis
#4
REVIEW
Daisy Y Shu, Frank J Lovicu
Wound healing is one of the most complex biological processes to occur in life. Repair of tissue following injury involves dynamic interactions between multiple cell types, growth factors, inflammatory mediators and components of the extracellular matrix (ECM). Aberrant and uncontrolled wound healing leads to a non-functional mass of fibrotic tissue. In the eye, fibrotic disease disrupts the normally transparent ocular tissues resulting in irreversible loss of vision. A common feature in fibrotic eye disease is the transdifferentiation of cells into myofibroblasts that can occur through a process known as epithelial-mesenchymal transition (EMT)...
August 12, 2017: Progress in Retinal and Eye Research
https://www.readbyqxmd.com/read/28805986/histiocytic-sarcoma-new-insights-into-fna-cytomorphology-and-molecular-characteristics
#5
Yin P Hung, Scott B Lovitch, Xiaohua Qian
BACKGROUND: Histiocytic sarcoma (HS) is a rare malignant neoplasm showing morphologic and immunophenotypic features of histiocytes. Molecular characteristics of HS and fine-needle aspiration (FNA) criteria for its diagnosis have not been established. METHODS: A case series of HS in 8 FNA samples from 6 patients was reviewed along with histopathologic and clinical data. Immunohistochemistry was performed on cell blocks (3 cases), core biopsies (5 cases), and surgical specimens (4 cases)...
August 2017: Cancer
https://www.readbyqxmd.com/read/28804544/sirt3-attenuates-angii-induced-cardiac-fibrosis-by-inhibiting-myofibroblasts-transdifferentiation-via-stat3-nfatc2-pathway
#6
Xiaobin Guo, Fangying Yan, Jingyuan Li, Chunmei Zhang, Peili Bu
Cardiac fibrosis is a maladaptive response to various stresses, characterized by increased interstitial collagen deposition and progressive cardiac dysfunction. The transdifferentiation of fibroblasts into myofibroblasts is an essential process in the pathogenesis of cardiac fibrosis. SIRT3, as a mitochondrial NAD(+)-dependent histone deacetylase, has been demonstrated beneficial in many cardiovascular diseases. However, the specific mechanism of its protective role in cardiac fibrosis needs to be elucidated further...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28804221/s1p-provokes-tumor-lymphangiogenesis-via-macrophage-derived-mediators-such-as-il-1%C3%AE-or-lipocalin-2
#7
REVIEW
Shahzad N Syed, Michaela Jung, Andreas Weigert, Bernhard Brüne
A pleiotropic signaling lipid, sphingosine-1-phosphate (S1P), has been implicated in various pathophysiological processes supporting tumor growth and metastasis. However, there are only a few descriptive studies suggesting a role of S1P in tumor lymphangiogenesis, which is critical for tumor growth and dissemination. Corroborating own data, the literature suggests that apoptotic tumor cell-derived S1P alters the phenotype of tumor-associated macrophages (TAMs) to gain protumor functions. However, mechanistically, the role of TAM-induced lymphangiogenesis has only been poorly described, mostly linked to the production of lymphangiogenic factors such as vascular endothelial growth factor C (VEGF-C) and VEGF-D, or transdifferentiation into lymphatic endothelial cells...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28803413/neovascularization-during-leafy-gall-formation-on-arabidopsis-thaliana-upon-rhodococcus-fascians-infection
#8
Alicja Dolzblasz, Alicja Banasiak, Danny Vereecke
Extensive de novo vascularization of leafy galls emerging upon Rhodococcus fascians infection is achieved by fascicular/interfascicular cambium activity and transdifferentiation of parenchyma cells correlated with increased auxin signaling. A leafy gall consisting of fully developed yet growth-inhibited shoots, induced by the actinomycete Rhodococcus fascians, differs in structure compared to the callus-like galls induced by other bacteria. To get insight into the vascular development accompanying the emergence of the leafy gall, the anatomy of infected axillary regions of the inflorescence stem of wild-type Arabidopsis thaliana accession Col-0 plants and the auxin response in pDR5:GUS-tagged plants were followed in time...
August 12, 2017: Planta
https://www.readbyqxmd.com/read/28800024/the-roles-of-dermal-white-adipose-tissue-loss-in-scleroderma-skin-fibrosis
#9
Roberta G Marangoni, Theresa T Lu
PURPOSE OF REVIEW: Dermal white adipose tissue (DWAT) is distinct from subcutaneous white adipose tissue and is lost in scleroderma skin fibrosis. The roles of DWAT loss in scleroderma skin fibrosis have not been well understood, and here we discuss recent findings that begin to provide insight into the multiple mechanisms involved. RECENT FINDINGS: The DWAT loss in part reflects the direct contribution of DWAT cells to the fibrotic tissue, with the reprogramming of adipocytes to myofibroblasts...
August 10, 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/28791309/research-progress-on-mechanism-of-podocyte-depletion-in-diabetic-nephropathy
#10
REVIEW
Haoran Dai, Qingquan Liu, Baoli Liu
Diabetic nephropathy (DN) together with glomerular hyperfiltration has been implicated in the development of diabetic microangiopathy in the initial stage of diabetic diseases. Increased amounts of urinary protein in DN may be associated with functional and morphological alterations of podocyte, mainly including podocyte hypertrophy, epithelial-mesenchymal transdifferentiation (EMT), podocyte detachment, and podocyte apoptosis. Accumulating studies have revealed that disruption in multiple renal signaling pathways had been critical in the progression of these pathological damages, such as adenosine monophosphate-activated kinase signaling pathways (AMPK), wnt/β-catenin signaling pathways, endoplasmic reticulum stress-related signaling pathways, mammalian target of rapamycin (mTOR)/autophagy pathway, and Rho GTPases...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/28783725/a-braf-kinase-inactive-mutant-induces-lung-adenocarcinoma
#11
Patricia Nieto, Chiara Ambrogio, Laura Esteban-Burgos, Gonzalo Gómez-López, María Teresa Blasco, Zhan Yao, Richard Marais, Neal Rosen, Roberto Chiarle, David G Pisano, Mariano Barbacid, David Santamaría
The initiating oncogenic event in almost half of human lung adenocarcinomas is still unknown, a fact that complicates the development of selective targeted therapies. Yet these tumours harbour a number of alterations without obvious oncogenic function including BRAF-inactivating mutations. Inactivating BRAF mutants in lung predominate over the activating V600E mutant that is frequently observed in other tumour types. Here we demonstrate that the expression of an endogenous Braf(D631A) kinase-inactive isoform in mice (corresponding to the human BRAF(D594A) mutation) triggers lung adenocarcinoma in vivo, indicating that BRAF-inactivating mutations are initiating events in lung oncogenesis...
August 10, 2017: Nature
https://www.readbyqxmd.com/read/28774888/development-of-autoimmune-pancreatitis-is-independent-of-cdkn1a-p21-mediated-pancreatic-inflammation
#12
Gitta M Seleznik, Theresia Reding, Lukas Peter, Anurag Gupta, Sabrina G Steiner, Sabrina Sonda, Caroline S Verbeke, Emmanuel Dejardin, Igor Khatkov, Stephan Segerer, Mathias Heikenwalder, Rolf Graf
OBJECTIVE: Chronic pancreatitis (CP) and autoimmune pancreatitis (AIP) are characterised by different inflammatory processes. If pancreatic inflammation is a prerequisite for autoimmunity is still unclear. AIP is considered mostly a T cell-mediated disease; however, in induction of CP, macrophages play a pivotal role. p21-a member of cyclin-dependent kinase inhibitors-can influence inflammatory processes, in particular can regulate T cell activation and promote macrophage development...
August 3, 2017: Gut
https://www.readbyqxmd.com/read/28772211/autophagy-as-a-potential-therapeutic-target-during-epithelial-to-mesenchymal-transition-in-renal-cell-carcinoma-an-in-vitro-study
#13
Mamta Singla, Shalmoli Bhattacharyya
Cancer progression toward invasive and metastatic disease is aided by reactivation of epithelial-mesenchymal transition (EMT), involving transdifferentiation of epithelial cells into mesenchymal phenotype. This leads to increased migratory and stem cell-like features in the cells. These EMT cells are more resistant to chemotherapy and it is hypothesized that the phenomenon of autophagy induces resistance, providing a survival strategy for cells. In the present study, we induced EMT-like phenotype in renal carcinoma cells and identified corresponding higher autophagy flux in these cells...
July 31, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28765930/e%C3%A2-cadherin-involvement-in-human-lens-epithelial-cell-transdifferentiation-may-be-associated-with-n%C3%A2-cadherin
#14
Lei Huang, Jie Jiang, Qiang Guo, Hongbin Yang
E-cadherin, β-catenin and N‑cadherin serve key roles in the epithelial‑to‑mesenchymal transition (EMT) that leads to human lens epithelial cell (LEC) transdifferentiation and subsequent cataract formation. The present study aimed to investigate the role of E‑cadherin in LEC transdifferentiation. SRA01/04 human LECs were transfected with E‑cadherin short interfering (si)RNA (E‑cadherin siRNA group), negative control siRNA (NC group) or the transfection regent Lipofectamine 2000 (blank group). Reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) was used to detect mRNA expression levels of E‑cadherin, N‑cadherin and β‑catenin, and western blot analysis was performed to measure the protein expression levels in the three groups...
August 2, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28760678/sirt3-inhibits-ang-ii-induced-transdifferentiation-of-cardiac-fibroblasts-through-%C3%AE-catenin-ppar-%C3%AE-signaling
#15
Fangying Yan, Xiaobin Guo, Xiaolan Shan, Jingyuan Li, Yi Yang, Jie Zhang, Xuefang Yan, Peili Bu
AIMS: Cardiac fibrosis is an inevitable process of numerous cardiovascular diseases in which the transdifferentiation of cardiac fibroblasts plays a pivotal role. Sirtuin3 (SIRT3) has been believed to protect against cardiac fibrosis. However, the mechanism underlying this beneficial effect has not yet been elucidated. In this study, we investigated the potential mechanism of SIRT3 on the inhibition of fibroblast-to-myoblast transdifferentiation. MAIN METHODS: Cells were stimulated by angiotension II (Ang II) with SIRT3 overexpression or knockdown...
July 28, 2017: Life Sciences
https://www.readbyqxmd.com/read/28757167/chemical-cocktails-enable-hepatic-reprogramming-of-mouse-fibroblasts-with-a-single-transcription-factor
#16
Ren Guo, Wei Tang, Qianting Yuan, Lijian Hui, Xin Wang, Xin Xie
Liver or hepatocytes transplantation is limited by the availability of donor organs. Functional hepatocytes independent of the donor sources may have wide applications in regenerative medicine and the drug industry. Recent studies have demonstrated that chemical cocktails may induce reprogramming of fibroblasts into a range of functional somatic cells. Here, we show that mouse fibroblasts can be transdifferentiated into the hepatocyte-like cells (iHeps) using only one transcription factor (TF) (Foxa1, Foxa2, or Foxa3) plus a chemical cocktail...
August 8, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28756872/retinoic-acid-improves-nephrotoxic-serum-induced-glomerulonephritis-through-activation-of-podocyte-retinoic-acid-receptor-%C3%AE
#17
Yan Dai, Anqun Chen, Ruijie Liu, Leyi Gu, Shuchita Sharma, Weijing Cai, Fadi Salem, David J Salant, Jeffrey W Pippin, Stuart J Shankland, Marcus J Moeller, Norbert B Ghyselinck, Xiaquiang Ding, Peter Y Chuang, Kyung Lee, John Cijiang He
Proliferation of glomerular epithelial cells, including podocytes, is a key histologic feature of crescentic glomerulonephritis. We previously found that retinoic acid (RA) inhibits proliferation and induces differentiation of podocytes by activating RA receptor-α (RARα) in a murine model of HIV-associated nephropathy. Here, we examined whether RA would similarly protect podocytes against nephrotoxic serum-induced crescentic glomerulonephritis and whether this effect was mediated by podocyte RARα. RA treatment markedly improved renal function and reduced the number of crescentic lesions in nephritic wild-type mice, while this protection was largely lost in mice with podocyte-specific ablation of Rara (Pod-Rara knockout)...
July 27, 2017: Kidney International
https://www.readbyqxmd.com/read/28755566/chemical-reprogramming-and-transdifferentiation
#18
REVIEW
Xin Xie, Yanbin Fu, Jian Liu
The revolutionizing somatic cell reprogramming/transdifferentiation technologies provide a new path for cell replacement therapies and drug screening. The original method for reprogramming involves the delivery of exogenous transcription factors, leading to the safety concerns about the possible genome integration. Many efforts have been taken to avoid genetic alteration in somatic cell reprogramming/transdifferentiation by using non-integrating gene delivery approaches, cell membrane permeable proteins, and small molecule compounds...
July 26, 2017: Current Opinion in Genetics & Development
https://www.readbyqxmd.com/read/28754668/transglutaminase-2-inhibition-reverses-mesenchymal-transdifferentiation-of-glioma-stem-cells-by-regulating-c-ebp%C3%AE-signaling
#19
Jinlong Yin, Young Taek Oh, Jeong-Yub Kim, Sung Soo Kim, Eunji Choi, Tae Hoon Kim, Jun Hee Hong, Nakho Chang, Hee Jin Cho, Jason Kyungha Sa, Jeong Cheol Kim, Hyung Joon Kwon, Saewhan Park, Weiwei Lin, Ichiro Nakano, Ho-Shin Gwak, Heon Yoo, Seung-Hoon Lee, Jeongwu Lee, Jong Heon Kim, Soo-Youl Kim, Do-Hyun Nam, Myung-Jin Park, Jong Bae Park
Necrosis is a hallmark of glioblastoma (GBM) and is responsible for poor prognosis and resistance to conventional therapies. However, the molecular mechanisms underlying necrotic microenvironment-induced malignancy of GBM have not been elucidated. Here, we report that transglutaminase 2 (TGM2) is upregulated in the perinecrotic region of GBM and triggered mesenchymal (MES) transdifferentiation of glioma stem cells (GSC) by regulating master transcription factors (TF), such as C/EBPβ, TAZ, and STAT3. TGM2 expression was induced by macrophages/microglia-derived cytokines via NFκB activation and further degraded DNA damage-inducible transcript 3 (GADD153) to induce C/EBPβ expression, resulting in expression of the MES transcriptome...
July 28, 2017: Cancer Research
https://www.readbyqxmd.com/read/28754612/differentiation-potential-of-human-cd133-positive-hematopoietic-stem-cells-into-motor-neuron-like-cells-in-vitro
#20
Sepideh Alavi Moghaddam, Behnam Yousefi, Davood Sanooghi, Faezeh Faghihi, Nasim Hayati Roodbari, Nikoo Bana, Mohammad Taghi Joghataei, Paria Pooyan, Babak Arjmand
Spinal cord injuries and motor neuron-related disorders impact on life of many patients around the world. Since pharmacotherapy and surgical approaches were not efficient to regenerate these types of defects; stem cell therapy as a good strategy to restore the lost cells has become the focus of interest among the scientists. Umbilical cord blood CD133(+) hematopoietic stem cells (UCB- CD133(+) HSCs) with self- renewal property and neural lineage differentiation capacity are ethically approved cell candidate for use in regenerative medicine...
July 25, 2017: Journal of Chemical Neuroanatomy
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