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Lung stem cell

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https://www.readbyqxmd.com/read/27911857/yap1-regulates-abcg2-and-cancer-cell-side-population-in-human-lung-cancer-cells
#1
Yuyuan Dai, Shu Liu, Wen-Qian Zhang, Yi-Lin Yang, Phillip Hang, Hui Wang, Li Cheng, Ping-Chih Hsu, Yu-Chen Wang, Zhidong Xu, David M Jablons, Liang You
A small population of cancer cells called cancer-initiating cells or cancer stem cells (CSCs) are involved in drug resistance, metastasis, and cancer relapse. Finding pathways that regulate CSC is very important for clinical therapy. ATP-binding cassette sub-family G member 2 (ABCG2) plays a role in side population (SP) cell formation and contributes to chemotherapy resistance in common forms of cancer. Yes-associated protein 1 (YAP1) is a major transcriptional effector of the Hippo pathway, which plays important roles in organ size control and tumorigenesis...
November 29, 2016: Oncotarget
https://www.readbyqxmd.com/read/27905026/native-matrix-based-human-lung-alveolar-tissue-model-in-vitro-studies-of-the-reparatory-actions-of-mesenchymal-stem-cells
#2
Ieva Bruzauskaite, Jovile Raudoniute, Jaroslav Denkovskij, Edvardas Bagdonas, Sandra Meidute-Abaraviciene, Vaida Simonyte, Daiva Bironaite, Almantas Siaurys, Eiva Bernotiene, Ruta Aldonyte
Studies of lung diseases in vitro often rely on flat, plastic-based monocultures, due to short lifespan of primary cells, complicated anatomy, lack of explants, etc. We hereby present a native 3D model with cues for repopulating epithelial cells. Abilities of mesenchymal stem cells (MSC) to modulate bacterial lipopolysaccharide (LPS) and cigarette smoke-induced injury to pulmonary epithelium were tested in our model. Post-mortem human lung tissue was sliced, cut and decellularized. Resulting matrix pads were reseeded with pulmonary epithelium (A549 line)...
December 1, 2016: Cytotechnology
https://www.readbyqxmd.com/read/27904816/an-unusual-presentation-of-nocardiosis-in-an-allogeneic-transplant-recipient
#3
Uroosa Ibrahim, Amina Saqib, Farhan Mohammad, Terenig Terjanian
Nocardiosis is a rare cause of opportunistic infection post hematopoietic stem cell transplant (HSCT) occurring in about 0.3% of patients. The risk factors include delayed immune reconstitution, prolonged neutropenia, and graft-versus-host disease. The most common site of infection is the lung, followed by the brain and the skin. Concomitant pulmonary and central nervous system (CNS) nocardiosis is an extremely rare entity as presented in our case. We present the case of a 72-year-old male at 137 days post transplant presenting with complaints of headache and slurred speech...
October 17, 2016: Curēus
https://www.readbyqxmd.com/read/27903969/targeting-tissue-factor-as-a-novel-therapeutic-oncotarget-for-eradication-of-cancer-stem-cells-isolated-from-tumor-cell-lines-tumor-xenografts-and-patients-of-breast-lung-and-ovarian-cancer
#4
Zhiwei Hu, Jie Xu, Jijun Cheng, Elizabeth McMichael, Lianbo Yu, William E Carson Iii
Targeting cancer stem cell (CSC) represents a promising therapeutic approach as it can potentially fight cancer at its root. The challenge is to identify a surface therapeutic oncotarget on CSC. Tissue factor (TF) is known as a common yet specific surface target for cancer cells and tumor neovasculature in several solid cancers. However, it is unknown if TF is expressed by CSCs. Here we demonstrate that TF is constitutively expressed on CD133 positive (CD133+) or CD24-CD44+ CSCs isolated from human cancer cell lines, tumor xenografts from mice and breast tumor tissues from patients...
November 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/27900108/high-dose-chemotherapy-with-autologous-peripheral-blood-stem-cell-transplantation-for-choriocarcinoma-a-case-report-and-literature-review
#5
Eiko Yamamoto, Kaoru Niimi, Kayo Fujikake, Tetsuya Nishida, Makoto Murata, Ayako Mitsuma, Yuichi Ando, Fumitaka Kikkawa
Choriocarcinoma is a malignant gestational trophoblastic neoplasia (GTN) and one of the curable types of gynecological cancer. However, 10% of choriocarcinoma patients have a poor prognosis, particularly when they have metastasis, apart from pulmonary metastasis, or do not go into remission by the second chemotherapeutic regimen. We herein present the case of a 36-year-old patient who had choriocarcinoma with metastases to the lungs, liver and kidneys. The 5th and 6th regimens with cisplatin for choriocarcinoma failed and the patient developed brain metastases...
November 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/27895670/wnt5a-increases-properties-of-lung-cancer-stem-cells-and-resistance-to-cisplatin-through-activation-of-wnt5a-pkc-signaling-pathway
#6
Jiali Yang, Kangjian Zhang, Jing Wu, Juan Shi, Jing Xue, Jing Li, Juan Chen, Yongzhao Zhu, Jun Wei, Jinxi He, Xiaoming Liu
The development of chemoresistance to cisplatin regimens causes a poor prognosis in patients with advanced NSCLC. The role of noncanonical Wnt signaling in the regulation of properties of lung cancer stem cells and chemoresistance was interrogated, by accessing capacities of cell proliferation, migration, invasion, and clonogenicity as well as the apoptosis in A549 cell lines and cisplatin-resistant A549 cells treated with Wnt5a conditional medium or protein kinase C (PKC) inhibitor GF109203X. Results showed that the noncanonical Wnt signaling ligand, Wnt5a, could promote the proliferation, migration, invasion, and colony formation in A549 lung adenocarcinoma cells and cisplatin-resistant A549/DDP cells and increase the fraction of ALDH-positive cell in A549/DDP cells...
2016: Stem Cells International
https://www.readbyqxmd.com/read/27895584/induced-pluripotent-stem-cells-inhibit-bleomycin-induced-pulmonary-fibrosis-in-mice-through-suppressing-tgf-%C3%AE-1-smad-mediated-epithelial-to-mesenchymal-transition
#7
Yan Zhou, Zhong He, Yuan Gao, Rui Zheng, Xiaoye Zhang, Li Zhao, Mingqi Tan
Pulmonary fibrosis is a progressive and irreversible fibrotic lung disorder with high mortality and few treatment options. Recently, induced pluripotent stem (iPS) cells have been considered as an ideal resource for stem cell-based therapy. Although, an earlier study demonstrated the therapeutic effect of iPS cells on pulmonary fibrosis, the exact mechanisms remain obscure. The present study investigated the effects of iPS cells on inflammatory responses, transforming growth factor (TGF)-β1 signaling pathway, and epithelial to mesenchymal transition (EMT) during bleomycin (BLM)-induced lung fibrosis...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27894293/lung-bioengineering-physical-stimuli-and-stem-progenitor-cell-biology-interplay-towards-biofabricating-a-functional-organ
#8
REVIEW
Paula N Nonaka, Juan J Uriarte, Noelia Campillo, Vinicius R Oliveira, Daniel Navajas, Ramon Farré
A current approach to obtain bioengineered lungs as a future alternative for transplantation is based on seeding stem cells on decellularized lung scaffolds. A fundamental question to be solved in this approach is how to drive stem cell differentiation onto the different lung cell phenotypes. Whereas the use of soluble factors as agents to modulate the fate of stem cells was established from an early stage of the research with this type of cells, it took longer to recognize that the physical microenvironment locally sensed by stem cells (e...
November 28, 2016: Respiratory Research
https://www.readbyqxmd.com/read/27891292/cancer-stem-cells-cellular-plasticity-niche-and-its-clinical-relevance
#9
Gina Lee, Robert R Hall, Atique U Ahmed
Cancer handles an estimated 7.6 million deaths worldwide per annum. A recent theory focuses on the role Cancer Stem Cells (CSCs) in driving tumorigenesis and disease progression. This theory hypothesizes that a population of the tumor cell with similar functional and phenotypic characteristics as normal tissue stem cells are responsible for formation and advancement of many human cancers. The CSCs subpopulation can differentiate into non-CSC tumor cells and promote phenotypic and functional heterogeneity within the tumor...
October 2016: Journal of Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27890727/synthetic-tambjamine-analogues-induce-mitochondrial-swelling-and-lysosomal-dysfunction-leading-to-autophagy-blockade-and-necrotic-cell-death-in-lung-cancer
#10
Ananda M Rodilla, Luís Korrodi-Gregório, Elsa Hernando, Pilar Manuel-Manresa, Roberto Quesada, Ricardo Pérez-Tomás, Vanessa Soto-Cerrato
Current pharmacological treatments for lung cancer show very poor clinical outcomes, therefore, the development of novel anticancer agents with innovative mechanisms of action is urgently needed. Cancer cells have a reversed pH gradient compared to normal cells, which favours cancer progression by promoting proliferation, metabolic adaptation and evasion of apoptosis. In this regard, the use of ionophores to modulate intracellular pH appears as a promising new therapeutic strategy. Indeed, there is a growing body of evidence supporting ionophores as novel antitumour drugs...
November 24, 2016: Biochemical Pharmacology
https://www.readbyqxmd.com/read/27890297/digesting-the-role-of-bone-marrow-macrophages-on-hematopoiesis
#11
REVIEW
Esther Heideveld, Emile van den Akker
Tissue resident macrophages are found in various tissues like Langerhans cells in the skin or alveolar macrophages in the lung, and their main function is to regulate organ homeostasis. They have also been observed in the bone marrow and these cells in particular have been gaining importance in recent years as they are key players in hematopoiesis. However, as the characterization and classification of these putatively different bone marrow resident macrophages is far from established there is a need to generate an overview of tissue resident macrophages of the bone marrow...
November 17, 2016: Immunobiology
https://www.readbyqxmd.com/read/27888809/human-adipose-tissue-derived-mesenchymal-stem-cells-alleviate-atopic-dermatitis-via-regulation-of-b-lymphocyte-maturation
#12
Tae-Hoon Shin, Byung-Chul Lee, Soon Won Choi, Ji-Hee Shin, Insung Kang, Jin Young Lee, Jae-Jun Kim, Hong-Ki Lee, Jae-Eon Jung, Yong-Woon Choi, Sung-Hoon Lee, Jin-Sang Yoon, Jin-Sub Choi, Chi-Seung Lee, Yoojin Seo, Hyung-Sik Kim, Kyung-Sun Kang
Mesenchymal stem cell (MSC) has been applied for the therapy of allergic disorders due to its beneficial immunomodulatory abilities. However, the underlying mechanisms for therapeutic efficacy are reported to be diverse according to the source of cell isolation or the route of administration. We sought to investigate the safety and the efficacy of human adipose tissue-derived MSCs (hAT-MSCs) in mouse atopic dermatitis (AD) model and to determine the distribution of cells after intravenous administration. Murine AD model was established by multiple treatment of Dermatophagoides farinae...
November 19, 2016: Oncotarget
https://www.readbyqxmd.com/read/27888562/parainfluenza-3-infections-early-after-kidney-or-simultaneous-pancreas-kidney-transplantation
#13
Ilkka Helanterä, Veli-Jukka Anttila, Raisa Loginov, Marko Lempinen
Parainfluenza (PIV) can cause serious infections after hematopoietic stem cell or lung transplantation. Limited data exist about PIV infections after kidney transplantation. We describe an outbreak of PIV-3 in a transplant unit. During the outbreak 45 patients were treated on the ward for postoperative care after kidney or simultaneous pancreas-kidney (SPK) transplantation. Altogether 29 patients were tested for respiratory viruses (12 patients with respiratory symptoms, 17 asymptomatic exposed patients) from nasopharyngeal swabs with PCR...
November 26, 2016: American Journal of Transplantation
https://www.readbyqxmd.com/read/27887617/increased-expression-of-trop2-in-airway-basal-cells-potentially-contributes-to-airway-remodeling-in-chronic-obstructive-pulmonary-disease
#14
Qixiao Liu, Haijun Li, Qin Wang, Yuke Zhang, Wei Wang, Shuang Dou, Wei Xiao
BACKGROUND: The airway epithelium of chronic obstructive pulmonary disease (COPD) patients undergoes aberrant repair and remodeling after repetitive injury following exposure to environmental factors. Abnormal airway regeneration observed in COPD is thought to originate in the stem/progenitor cells of the airway epithelium, the basal cells (BCs). However, the molecular mechanisms underlying these changes remain unknown. Here, trophoblast cell surface antigen 2 (TROP2), a protein implicated in the regulation of stem cell activity, was examined in lung tissue samples from COPD patients...
November 25, 2016: Respiratory Research
https://www.readbyqxmd.com/read/27882637/transplantation-associated-thrombotic-microangiopathy-isolated-to-a-congenital-anomaly-of-the-lung
#15
Rebecca T Kummen, Geoffrey D E Cuvelier, Camelia Stefanovici, Anamarija M Perry, Rick Higgins, Rochelle Yanofsky, Suyin A Lum Min, Donna A Wall
TA-TMA is a post-hematopoietic stem cell transplant complication with clinical features of hemolytic anemia and thrombocytopenia. A 26-month-old child who had had an allogeneic transplant for treatment of DBA developed severe TA-TMA with heavy red blood cell and platelet transfusion dependence. Incidentally, he was found to have a lung sequestration. TA-TMA resolved and transfusion dependence resolved after resection of the sequestration. The finding suggests the malformation vasculature was selectively vulnerable to the trigger of TA-TMA-raising perhaps a clue to basic pathophysiology of TA-TMA and/or vascular malformations...
November 24, 2016: Pediatric Transplantation
https://www.readbyqxmd.com/read/27882463/the-use-of-technetium-99m-for-intravital-tracing-of-transplanted-multipotent-stromal-cells
#16
D N Silachev, A K Kondakov, I A Znamenskii, Yu B Kurashvili, A V Abolenskaya, N R Antipkin, T I Danilina, V N Manskikh, M V Gulyaev, Yu A Pirogov, E Yu Plotnikov, D B Zorov, G T Sukhikh
We studied the possibility of in vivo tracing of multipotent mesenchymal stromal cells labeled with a radiophermaceutic preparation based on metastable isotope Technetium-99m and injected to rats with modeled traumatic brain injury. Accumulation of labeled cells occurred primarily in the liver and lungs. The cells distribution in internal organs greatly varied depending on the administration route. Cell injection into the carotid artery led to their significant accumulation in the damaged brain hemisphere, while intravenous injection was followed by diffuse cell distribution in all brain structures...
November 23, 2016: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27880766/sox2-and-pi3k-cooperate-to-induce-and-stabilize-a-squamous-committed-stem-cell-injury-state-during-lung-squamous-cell-carcinoma-pathogenesis
#17
Bo Ram Kim, Emily Van de Laar, Michael Cabanero, Shintaro Tarumi, Stefan Hasenoeder, Dennis Wang, Carl Virtanen, Takaya Suzuki, Bizhan Bandarchi, Shingo Sakashita, Nhu An Pham, Sharon Lee, Shaf Keshavjee, Thomas K Waddell, Ming-Sound Tsao, Nadeem Moghal
Although cancers are considered stem cell diseases, mechanisms involving stem cell alterations are poorly understood. Squamous cell carcinoma (SQCC) is the second most common lung cancer, and its pathogenesis appears to hinge on changes in the stem cell behavior of basal cells in the bronchial airways. Basal cells are normally quiescent and differentiate into mucociliary epithelia. Smoking triggers a hyperproliferative response resulting in progressive premalignant epithelial changes ranging from squamous metaplasia to dysplasia...
November 2016: PLoS Biology
https://www.readbyqxmd.com/read/27878717/antitumor-effects-of-sorbus-aucuparia-l-extract-highly-saturated-with-anthocyans-and-their-mechanisms
#18
T G Razina, E P Zueva, A V Ulrich, O Yu Rybalkina, A V Chaikovskii, N V Isaikina, G I Kalinkina, V V Zhdanov, G N Zyuz'kov
The effects of Fructus Sorbi aucupariae extract, originally saturated with anthocyans, on the development of Lewis lung carcinoma and B-16 melanoma in C57Bl/6 mice and the efficiency of cyclophosphamide treatment were studied. Antitumor activity of the extract and potentiation of the antimetastatic activity of the cytostatic were demonstrated. Studies on melanoma B-16 model revealed an increase in the counts of stromal progenitor cells in the tumor node and their accelerated maturation after treatment with the extract...
November 23, 2016: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27873515/angiopoietin-1-modified-human-umbilical-cord-mesenchymal-stem-cell-therapy-for-endotoxin-induced-acute-lung-injury-in-rats
#19
Zhi Wei Huang, Ning Liu, Dong Li, Hai Yan Zhang, Ying Wang, Yi Liu, Le Ling Zhang, Xiu Li Ju
PURPOSE: Angiopoietin-1 (Ang1) is a critical factor for vascular stabilization and endothelial survival via inhibition of endothelial permeability and leukocyte- endothelium interactions. Hence, we hypothesized that treatment with umbilical cord mesenchymal stem cells (UCMSCs) carrying the Ang1 gene (UCMSCs-Ang1) might be a potential approach for acute lung injury (ALI) induced by lipopolysaccharide (LPS). MATERIALS AND METHODS: UCMSCs with or without transfection with the human Ang1 gene were delivered intravenously into rats one hour after intra-abdominal instillation of LPS to induce ALI...
January 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/27872482/development-of-a-rapid-screen-for-the-endodermal-differentiation-potential-of-human-pluripotent-stem-cell-lines
#20
Richard Siller, Elena Naumovska, Santosh Mathapati, Max Lycke, Sebastian Greenhough, Gareth J Sullivan
A challenge facing the human pluripotent stem cell (hPSC) field is the variability observed in differentiation potential of hPSCs. Variability can lead to time consuming and costly optimisation to yield the cell type of interest. This is especially relevant for the differentiation of hPSCs towards the endodermal lineages. Endodermal cells have the potential to yield promising new knowledge and therapies for diseases affecting multiple organ systems, including lung, thymus, intestine, pancreas and liver, as well as applications in regenerative medicine and toxicology...
November 22, 2016: Scientific Reports
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