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Pulmonary stem cell

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https://www.readbyqxmd.com/read/28067884/reversal-of-pre-capillary-pulmonary-hypertension-in-a-patient-with-sickle-cell-anemia-who-underwent-haploidentical-peripheral-blood-stem-cell-transplantation
#1
C Pittman, M M Hsieh, W Coles, J F Tisdale, N A Weir, C D Fitzhugh
No abstract text is available yet for this article.
January 9, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28062213/anti-fibrotic-effects-of-bone-morphogenetic-protein-7-modified-bone-marrow-mesenchymal-stem-cells-on-silica-induced-pulmonary-fibrosis
#2
Xiaoli Li, Guoliang An, Yan Wang, Di Liang, Zhonghui Zhu, Ximeng Lian, Piye Niu, Caixia Guo, Lin Tian
Silicosis is an occupational lung disease caused by exposure to small particles of crystalline silica, which ultimately results in diffuse pulmonary fibrosis. Evidence indicates an anti-fibrotic role of bone morphogenetic protein-7 (BMP-7) and bone marrow mesenchymal stem cells (BMSCs) in lung diseases. Therefore, strategies incorporating genetic engineering and stem cell biology might have a tremendous potential to treat critical injuries and diseases. Therefore, we modified BMSCs to overexpress the BMP-7 gene (BMP-7-BMSCs) by lentivirus transduction, and then evaluated whether fibrotic processes were inhibited by these cells in vivo...
January 4, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28056498/bone-marrow-stem-cell-therapy-partially-ameliorates-pathological-consequences-in-livers-of-mice-expressing-mutant-human-%C3%AE-1-antitrypsin
#3
Prakash Baligar, Veena Kochat, Shailendra K Arindkar, Zaffar Equbal, Snehashish Mukherjee, Swati Patel, Perumal Nagarajan, Sujata Mohanty, Jeffrey H Teckman, Asok Mukhopadhyay
: Alpha1-antitrypsin deficiency (AATD) is a genetic disease, caused by mutation of the AAT gene. Accumulation of mutated AAT protein aggregates in hepatocytes leads to endoplasmic reticulum (ER) stress resulting in impairment of liver functions and in some cases hepatocellular carcinoma, whereas decline of AAT levels in sera is responsible for pulmonary emphysema. In critical cases of liver ailments, the only option for treatment is liver transplantation, whereas AAT replacement therapy is followed in case of emphysema...
January 5, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28054207/mortality-after-hematopoietic-stem-cell-transplantation-for-severe-mucopolysaccharidosis-type-i-the-30-year-university-of-minnesota-experience
#4
Nathan J Rodgers, Alexander M Kaizer, Weston P Miller, Kyle D Rudser, Paul J Orchard, Elizabeth A Braunlin
BACKGROUND AND AIM: Mucopolysaccharidosis IH (MPS IH, Hurler syndrome) naturally leads to death within the first decade of life, primarily from cardiac and pulmonary causes. To determine how hematopoietic stem cell transplantation (HSCT) has altered mortality, we analyzed our institution's 30-year experience of patients with MPS IH undergoing HSCT. METHODS: Using chart review and the National Death Index, we determined survival status of 134 patients (males = 69) with MPS IH transplanted between 9/16/1983 and 7/25/2013 on 12/31/2013...
January 4, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/28052713/bronchiolitis-obliterans-syndrome-in-adults-after-allogeneic-stem-cell-transplantation-pathophysiology-diagnostics-and-treatment
#5
Ida Sofie Grønningsæter, Galina Tsykunova, Kyrre Lilleeng, Aymen Bushra Ahmed, Øystein Bruserud, Håkon Reikvam
Transplant-related complications are common after allogeneic hematopoietic stem cell transplantation (allo-HSCT), including graft versus host disease (GVHD). The lungs are frequently affected during the course of allo-HSCT, and among the non-infectious pulmonary complications bronchiolitis obliterans syndrome (BOS) is the most common and considered the only diagnostic manifestation of pulmonary GVHD. BOS is an irreversible obstructive disease that affects the terminal bronchioles, and it is associated with high morbidity and mortality rates...
January 4, 2017: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/28050475/role-of-hrct-chest-in-post-stem-cell-transplant-recipients-suspected-of-pulmonary-complications
#6
Abhishek Dwivedi, R Ravi Kumar, Ajay Sharma, S K Pannu
INTRODUCTION: Stem cell transplantation is today's procedure of choice for management of various hematopoietic malignant and severe immunogenic disorders. High Resolution Computed Tomography (HRCT) is a common technique for the diagnosis of pulmonary complications in stem cell transplant recipients. There are a large number of complications which can complicate the post-transplant period. AIM: To study the role of HRCT chest in stem cell transplant patients developing pulmonary complications, detect any evidence of infection, detect clinical signs of lung infections, Graft versus Host Disease (GvHD) or other regimen related toxicities outlined earlier, detect any evidence of GvHD and correlate these clinical signs with radiological changes in the lungs...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28049063/activity-of-pericampylus-glaucus-and-periglaucine-a-in-vitro-against-nasopharangeal-carcinoma-and-anti-inflammatory-activity
#7
Fiona Natalia Shipton, Teng-Jin Khoo, Md Shahadat Hossan, Christophe Wiart
ETHNOPHARMACOLOGICAL RELEVANCE: P. glaucus is a climbing plant found across Asia and used in traditional medicine to treat a number of conditions including splenomegaly, fever, cough, laryngitis, pulmonary disease, asthma, headache, hair loss, snake bite, boar bite, factures, boils, tumours, tetanus, rheumatic pain, itches and eclampsia. AIM OF THE STUDY: To test extracts of P. glaucus in a number of bioassays and determine the legitimacy of its traditional use...
December 31, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28018357/the-role-of-lymphocytes-in-radiotherapy-induced-adverse-late-effects-in-the-lung
#8
REVIEW
Florian Wirsdörfer, Verena Jendrossek
Radiation-induced pneumonitis and fibrosis are dose-limiting side effects of thoracic irradiation. Thoracic irradiation triggers acute and chronic environmental lung changes that are shaped by the damage response of resident cells, by the resulting reaction of the immune system, and by repair processes. Although considerable progress has been made during the last decade in defining involved effector cells and soluble mediators, the network of pathophysiological events and the cellular cross talk linking acute tissue damage to chronic inflammation and fibrosis still require further definition...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/28017794/patient-specific-ipsc-derived-endothelial-cells-uncover-pathways-that-protect-against-pulmonary-hypertension-in-bmpr2-mutation-carriers
#9
Mingxia Gu, Ning-Yi Shao, Silin Sa, Dan Li, Vittavat Termglinchan, Mohamed Ameen, Ioannis Karakikes, Gustavo Sosa, Fabian Grubert, Jaecheol Lee, Aiqin Cao, Shalina Taylor, Yu Ma, Zhixin Zhao, James Chappell, Rizwan Hamid, Eric D Austin, Joseph D Gold, Joseph C Wu, Michael P Snyder, Marlene Rabinovitch
In familial pulmonary arterial hypertension (FPAH), the autosomal dominant disease-causing BMPR2 mutation is only 20% penetrant, suggesting that genetic variation provides modifiers that alleviate the disease. Here, we used comparison of induced pluripotent stem cell-derived endothelial cells (iPSC-ECs) from three families with unaffected mutation carriers (UMCs), FPAH patients, and gender-matched controls to investigate this variation. Our analysis identified features of UMC iPSC-ECs related to modifiers of BMPR2 signaling or to differentially expressed genes...
December 2, 2016: Cell Stem Cell
https://www.readbyqxmd.com/read/28013120/intraarticular-and-intravenous-administration-of-99m-tc-hmpao-labeled-human-mesenchymal-stem-cells-99m-tc-ah-mscs-in-vivo-imaging-and-biodistribution
#10
Luis Meseguer-Olmo, Antonio Jesús Montellano, Teresa Martínez, Carlos M Martínez, Beatriz Revilla-Nuin, Marta Roldán, Cristina Fuente Mora, Maria Dolores López-Lucas, Teodomiro Fuente
INTRODUCTION: Therapeutic application of intravenous administered (IV) human bone marrow-derived mesenchymal stem cells (ahMSCs) appears to have as main drawback the massive retention of cells in the lung parenchyma, questioning the suitability of this via of administration. Intraarticular administration (IAR) could be considered as an alternative route for therapy in degenerative and traumatic joint lesions. Our work is outlined as a comparative study of biodistribution of (99m)Tc-ahMSCs after IV and IAR administration, via scintigraphic study in an animal model...
December 9, 2016: Nuclear Medicine and Biology
https://www.readbyqxmd.com/read/28011985/beeam-conditioning-with-bendamustine-replacing-bcnu-before-autologous-transplantation-is-safe-and-effective-in-lymphoma-patients
#11
Stefanie Gilli, Urban Novak, Behrouz Mansouri Taleghani, Gabriela M Baerlocher, Kurt Leibundgut, Yara Banz, Thilo Zander, Daniel Betticher, Thomas Egger, Daniel Rauch, Thomas Pabst
BEAM with BCNU is commonly used for conditioning treatment followed by autologous stem cell transplantation (ASCT). However, pulmonary toxicity and availability issues associated with BCNU prompted us to evaluate bendamustine-replacing BCNU (BeEAM). We analyzed 39 lymphoma patients receiving BeEAM conditioning with 200 mg/m(2) bendamustine at days -7 and -6. The median duration until neutrophil recovery was 11 days, and 15 days for platelet recovery (>20 g/L). The most common grade 3/4 non-hematologic toxicities comprised mucosal side effects (27 pts...
December 24, 2016: Annals of Hematology
https://www.readbyqxmd.com/read/28005428/telomerase-and-the-genetics-of-emphysema-susceptibility-implications-for-pathogenesis-paradigms-and-patient-care
#12
Susan E Stanley, Samantha J Merck, Mary Armanios
In the past five decades, alpha-1 antitrypsin deficiency has been the only known genetic cause of emphysema, yet it explains the genetics in only 1-2% of severe cases. Recently, mutations in telomerase genes were found to induce susceptibility to young-onset, severe, and familial emphysema at a frequency comparable to that of alpha-1 antitrypsin deficiency. Telomerase mutation carriers with emphysema report a family history of idiopathic pulmonary fibrosis, and both lung phenotypes show autosomal dominant inheritance within families...
December 2016: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28005423/cellular-senescence-and-lung-function-during-aging-yin-and-yang
#13
Judith Campisi
Cellular senescence is a cell fate decision and stress response that entails a permanent arrest of cell proliferation coupled to a complex secretory phenotype. Senescent cells increase in number with age in most, if not all, mammalian tissues, including the airways and lungs. They also increase at greater than expected numbers, compared with age-matched controls, at sites of age-related pathologies such as chronic obstructive pulmonary disorder and emphysema. The senescence response is a double-edged sword...
December 2016: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28005418/wnt-signaling-in-lung-aging-and-disease
#14
Mareike Lehmann, Hoeke A Baarsma, Melanie Königshoff
Chronic lung diseases, such as chronic obstructive pulmonary disease (COPD) and idiopathic pulmonary fibrosis (IPF), represent a significant and increasing health burden. Current therapies are largely symptomatic, and novel therapeutic approaches are needed. Aging has emerged as a contributing factor for the development of both IPF and COPD because their prevalence increases with age, and several pathological features of these diseases resemble classical hallmarks of aging. Aging is thought to be driven in part by aberrant activity of developmental signaling pathways that thus might drive pathological changes, a process termed antagonistic pleiotropy or developmental drift...
December 2016: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28000095/exosomes-from-ipscs-delivering-sirna-attenuate-intracellular-adhesion-molecule-1-expression-and-neutrophils-adhesion-in-pulmonary-microvascular-endothelial-cells
#15
Zhihai Ju, Jinhui Ma, Chen Wang, Jie Yu, Yeru Qiao, Feilong Hei
The pro-inflammatory activation of pulmonary microvascular endothelial cells resulting in continuous expression of cellular adhesion molecules, and subsequently recruiting primed neutrophils to form a firm neutrophils-endothelium (PMN-EC) adhesion, has been examined and found to play a vital role in acute lung injury (ALI). RNA interference (RNAi) is a cellular process through harnessing a natural pathway silencing target gene based on recognition and subsequent degradation of specific mRNA sequences. It opens a promising approach for precision medicine...
December 21, 2016: Inflammation
https://www.readbyqxmd.com/read/27994962/regulation-of-s1p-receptors-and-sphingosine-kinases-expression-in-acute-pulmonary-endothelial-cell-injury
#16
Huiying Liu, Zili Zhang, Puyuan Li, Xin Yuan, Jing Zheng, Jinwen Liu, Changqing Bai, Wenkai Niu
BACKGROUND: Acute lung injury and acute respiratory distress syndrome (ALI/ARDS) is a severe clinical syndrome with mortality rate as high as 30-40%. There is no treatment yet to improve pulmonary endothelial barrier function in patients with severe pulmonary edema. Developing therapies to protect endothelial barrier integrity and stabilizing gas exchange is getting more and more attention. Sphingosine-1-phosphate (S1P) is able to enhance the resistance of endothelial cell barrier. S1P at physiological concentrations plays an important role in maintaining endothelial barrier function...
2016: PeerJ
https://www.readbyqxmd.com/read/27991692/inhibition-of-lung-cancer-in-diethylnitrosamine-induced-mice-by-rhizoma-paridis-saponins
#17
Shuli Man, Jing Li, Peiyu Qiu, Jing Liu, Zhen Liu, Long Ma, Wenyuan Gao
Lung cancer is the foremost cause of cancer mortality and a growing economic burden worldwide. Rhizoma Paridis saponins (RPS) have been reported to exhibit potential anti-tumor effects on many kinds of tumor models. The present study was designed to investigate the mechanism-based chemopreventive nature of RPS against DEN-induced lung carcinogenesis in Kunming mice. As a result, the treatment with RPS reduced the severity of pulmonary histopathology. The mechanism of its antitumor effect involved in (a) reducing oxidative stress injury through up-regulating activities of CAT and SOD, (b) down-regulating the levels of inflammatory factors, like TNF-α, IL6, COX-2 and PGE2, (c) activation of caspase-3 and up-regulating the pro-apoptotic protein Bax, (d) decreasing the expression of PCNA, (e) depressing the expression of cancer stem cells marker CD133, (f) suppressing aberrant expression of cytokeratin 8 and 18, and (g) inhibiting EGFR/ PI3K/Akt, EGFR/Ras/Erk and NF-κB pathways...
December 19, 2016: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/27989754/vam3-ameliorates-total-body-irradiation-induced-hematopoietic-system-injury-partly-by-regulating-the-expression-of-nrf2-targeted-genes
#18
Junling Zhang, Xiaolei Xue, Xiaodan Han, Chunsuo Yao, Lu Lu, Deguan Li, Qi Hou, Weimin Miao, Aimin Meng, Saijun Fan
Vam3, a resveratrol dimer, has been implicated in the regulation of chronic obstructive pulmonary disease. However, the effect of Vam3 on total body irradiation (TBI)-induced hematopoietic progenitor cells (HPCs), and hematopoietic stem cells (HSCs) injury is unknown. In this study, we examined whether Vam3could ameliorate hematopoietic system injury induced by TBI. Our results indicated that Vam3 alleviated TBI-induced injury by improving the self-renewal and differentiation of HPCs, and HSCs.Vam3 decreased the intracellular ROS levels in irradiated mice HPCs/HSCs or c-kit positive cells and inhibited apoptosis and DNA damage in LSKs and HPCs after TBI...
October 27, 2016: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/27988409/cerebral-rhizomucor-infection-treated-by-posaconazole-delayed-release-tablets-in-an-allogeneic-stem-cell-transplant-recipient
#19
Diego O Andrey, Laurent Kaiser, Stéphane Emonet, Veronique Erard, Yves Chalandon, Christian van Delden
Mucormycosis (zygomycosis) is an emerging fungal disease in allogeneic hematopoietic stem cell transplant (allo-HSCT) recipients. A 30-year-old woman diagnosed with acute myelomonocytic leukemia and needing allo-HSCT presented pulmonary and cerebral infection due to Rhizomucor pusillus. This fungal infection was treated with surgical treatment and posaconazole delayed-release tablets. This strategy allowed reaching high drug levels that could not be obtained with the posaconazole solution.
December 14, 2016: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/27959617/senescence-in-copd-and-its-comorbidities
#20
Peter J Barnes
Chronic obstructive pulmonary disease (COPD) is regarded as a disease of accelerated lung aging. This affliction shows all of the hallmarks of aging, including telomere shortening, cellular senescence, activation of PI3 kinase-mTOR signaling, impaired autophagy, mitochondrial dysfunction, stem cell exhaustion, epigenetic changes, abnormal microRNA profiles, immunosenescence, and a low-grade chronic inflammation (inflammaging). Many of these pathways are driven by chronic exogenous and endogenous oxidative stress...
December 9, 2016: Annual Review of Physiology
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