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Lung and iPS

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https://www.readbyqxmd.com/read/28372287/organ-reconstruction-dream-or-reality-for%C3%A2-the%C3%A2-future
#1
J-F Stoltz, L Zhang, J S Ye, N De Isla
The relevance of research on reconstructed organs is justified by the lack of organs available for transplant and the growing needs for the ageing population. The development of a reconstructed organ involves two parallel complementary steps: de-cellularization of the organ with the need to maintain the structural integrity of the extracellular matrix and vascular network and re-cellularization of the scaffold with stem cells or resident cells.Whole organ engineering for liver, heart, lung or kidneys, is particularly difficult because of the structural complexity of organs and heterogeneity of cells...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28366292/integrating-lung-physiology-immunology-and-tuberculosis
#2
REVIEW
Jordi B Torrelles, Larry S Schlesinger
Lungs are directly exposed to the air, have enormous surface area, and enable gas exchange in air-breathing animals. They are constantly 'attacked' by microbes from both outside and inside and thus possess a unique, highly regulated local immune defense system which efficiently allows for microbial clearance while minimizing damaging inflammatory responses. As a prototypic host-adapted airborne pathogen, Mycobacterium tuberculosis traverses the lung and has several 'interaction points' (IPs) which it must overcome to cause infection...
March 30, 2017: Trends in Microbiology
https://www.readbyqxmd.com/read/28332899/in-vitro-tests-for-aerosol-deposition-v-using-realistic-testing-to-estimate-variations-in-aerosol-properties-at-the-trachea
#3
Xiangyin Wei, Michael Hindle, Renishkumar R Delvadia, Peter R Byron
BACKGROUND: The dose and aerodynamic particle size distribution (APSD) of drug aerosols' exiting models of the mouth and throat (MT) during a realistic inhalation profile (IP) may be estimated in vitro and designated Total Lung Dose, TLDin vitro, and APSDTLDin vitro, respectively. These aerosol characteristics likely define the drug's regional distribution in the lung. METHODS: A general method was evaluated to enable the simultaneous determination of TLDin vitro and APSDTLDin vitro for budesonide aerosols' exiting small, medium and large VCU-MT models...
March 23, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28326803/when-is-an-alveolar-type-2-cell-an-alveolar-type-2-cell-a-conundrum-for-lung-stem-cell-biology-and-regenerative-medicine
#4
Michael F Beers, Yuben Moodley
Generating mature, differentiated, adult lung cells from pluripotent cells such as induced pluripotent cells (iPS) and embryonic stem cells (ES) offers the hope of both generating disease specific in vitro models and creating definitive and personalized therapies for a host of debilitating lung parenchymal and airway diseases. With the goal of advancing lung regenerative medicine, several groups have developed and reported on protocols utilizing either defined media, co-culture with mesenchymal components, or sequential treatments mimicking lung development, to obtain distal lung epithelial cells from stem cell precursors...
March 22, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28242132/abducens-nerve-palsy-due-to-inferior-petrosal-sinus-thrombosis
#5
Shivam Om Mittal, Junaid Siddiqui, Bashar Katirji
Isolated unilateral abducens nerve palsy is usually due to ischemia, trauma or neoplasm. Dorello's canal is the space between the petrous apex and superolateral portion of the clivus, bound superiorly by Gruber's ligament. The abducens nerve travels with inferior petrosal sinus (IPS) though the Dorello's canal before entering the cavernous sinus. A 31-year-old man presented with neck pain, and binocular horizontal diplopia, worse looking towards left and at distance. He had a history of intravenous drug abuse but no history of hypertension or diabetes...
February 24, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28219570/living-donor-lung-transplantation-after-bone-marrow-transplantation-for-chediak-higashi-syndrome
#6
Tetsu Yamada, Toyofumi F Chen-Yoshikawa, Shigeharu Oh, Rieko Ito-Taniguchi, Fumiaki Gochi, Masaaki Sato, Akihiro Aoyama, Hiroshi Date
An 8-year-old girl with Chediak-Higashi syndrome (CHS) had pulmonary complications after hematopoietic stem cell transplantation (HSCT) for hemophagocytic lymphohistiocytosis (HLH) and eventually underwent single living-donor lobar lung transplantation (LDLLT). Electron micrographic findings showed vagus nerve tissue in extracted lung having granular inclusions, which are pathognomonic for CHS. Because her mother was the donor for both hematopoietic stem cell and lung transplantations, she was weaned from immunosuppression and is doing well 3 years after lung transplantation...
March 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28217691/%C3%AE-1-antitrypsin-deficiency-a-misfolded-secretory-protein-variant-with-unique-effects-on-the-endoplasmic-reticulum
#7
David H Perlmutter
In the classical form of α1-antitrypsin deficiency (ATD) a point mutation leads to accumulation of a misfolded secretory glycoprotein in the endoplasmic reticulum (ER) of liver cells and so ATD has come to be considered a prototypical ER storage disease. It is associated with two major types of clinical disorders, chronic obstructive pulmonary disease (COPD) by loss-of-function mechanisms and hepatic cirrhosis and carcinogenesis by gain-of-function mechanisms. The lung disease predominantly results from proteolytic damage to the pulmonary connective tissue matrix because of reduced levels of protease inhibitor activity of α1-anitrypsin (AT) in the circulating blood and body fluids...
September 2016: Endoplasmic Reticulum Stress in Diseases
https://www.readbyqxmd.com/read/28195247/type-ii-congenital-pulmonary-airway-malformation-associated-with-intralobar-pulmonary-sequestration-report-of-a-case-and-review-of-classification-criteria
#8
M G Mastrogiulio, A Barone, M G Disanto, A Ginori, M R Ambrosio, S F Carbone, D Spina
Pulmonary congenital abnormalities are rare disorders including congenital pulmonary airway malformations (CPAM) and pulmonary sequestration (PS). CPAM is a lesion characterized by the presence of anomalous bronchiolar or acinar structures, variable in size, either cystic or not cystic. PS is generally defined as nonfunctioning lung tissue that is not in normal continuity with the tracheobronchial tree and that derives its blood supply from systemic vessels. We describe a case of a baby girl with a very rare association between CPAM type 2 and intralobar pulmonary sequestration (IPS) focusing on the cystic lesions typical of CPAM and on the lymphatic and blood vessels...
March 2016: Pathologica
https://www.readbyqxmd.com/read/28179988/ips-derived-mscs-from-an-expandable-bank-to-deliver-a-prodrug-converting-enzyme-that-limits-growth-and-metastases-of-human-breast-cancers
#9
M Ullah, Y Kuroda, T J Bartosh, F Liu, Q Zhao, C Gregory, R Reger, J Xu, R H Lee, D J Prockop
One attractive strategy to treat cancers is to deliver an exogenous enzyme that will convert a non-toxic compound to a highly toxic derivative. The strategy was tested with viral vectors but was disappointing because the efficiency of transduction into tumor cells was too low. Recent reports demonstrated that the limitation can be addressed by using tissue-derived mesenchymal stromal cells (MSCs) to deliver enzyme/prodrug systems that kill adjacent cancer cells through bystander effects. Here we addressed the limitation that tissue-derived MSCs vary in their properties and are difficult to generate in the large numbers needed for clinical applications...
2017: Cell Death Discovery
https://www.readbyqxmd.com/read/28161607/targeting-the-canonical-nuclear-factor-%C3%AE%C2%BAb-pathway-with-a-high-potency-ikk2-inhibitor-improves-outcomes-in-a-mouse-model-of-idiopathic-pneumonia-syndrome
#10
Kenneth A Fowler, Corey M Jania, Stephen L Tilley, Angela Panoskaltsis-Mortari, Albert S Baldwin, Jonathan S Serody, James M Coghill
Idiopathic pneumonia syndrome (IPS) is a noninfectious inflammatory disorder of the lungs that occurs most often after fully myeloablative allogeneic hematopoietic stem cell transplantation (HSCT). IPS can be severe and is associated with high 1-year mortality rates despite existing therapies. The canonical nuclear factor-(NF) κB signaling pathway has previously been linked to several inflammatory disorders of the lung, including asthma and lung allograft rejection. It has never been specifically targeted as a novel IPS treatment approach, however...
April 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28138192/a-rare-cause-of-recurrent-chest-infection-in-children-bronchopulmonary-sequestration
#11
Shabbir Hussain, Shoaib Ahmed, Syed Awais Ul Hassan Shah, Saba Haider Tarar
Bronchopulmonary sequestration is one of the rare thoracic congenital anomalies. We report the case of a 6 year old boy with history of recurrent episodes of chest infection and breathing difficulty. This time admitted with fever and cough. Investigations revelaed neutrophilic leucocytosis, raised C-reactive protein and a retrocardiac opacity on chest radiographs. Contrast enhanced Computed Topography(CT scan) revealed a large, well defined, left lower lobe multi-loculated cystic mass with a vessel arising from the descending aorta supplying sequestrated lung portion...
February 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28006781/allogeneic-compact-bone-derived-mesenchymal-stem-cell-transplantation-attenuates-the-severity-of-idiopathic-pneumonia-syndrome-in-a-murine-bone-marrow-transplantation-model
#12
Shu-Kai Qiao, Han-Yun Ren, Yong-Jin Shi, Wei Liu
BACKGROUND/AIMS: Idiopathic pneumonia syndrome (IPS) is a serious and life-threatening lung complication following allogeneic hematopoietic stem cell transplantation (allo-HSCT) and currently no effective therapies exist. This study was designed to determine whether transplantation of allogeneic murine compact bone derived- mesenchymal stem cells (CB-MSCs) could prevent the development of IPS. METHODS: We tested the effects of CB-MSCs transplantation on IPS using an established murine model of C57BL/6 (H-2b)→BALB/c (H-2d)...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27938474/human-muse-cells-non-tumorigenic-pluripotent-like-stem-cells-have-the-capacity-for-liver-regeneration-by-specific-homing-and-replenishment-of-new-hepatocytes-in-liver-fibrosis-mouse-model
#13
Masahiro Iseki, Yoshihiro Kushida, Shohei Wakao, Takahiro Akimoto, Masamichi Mizuma, Fuyuhiko Motoi, Ryuta Asada, Shinobu Shimizu, Michiaki Unno, Gregorio Chazenbalk, Mari Dezawa
Muse cells, a novel type of non-tumorigenic pluripotent-like stem cells reside in the bone marrow, skin and adipose tissue, are collectable as cells positive for pluripotent surface marker SSEA-3. They are able to differentiate into cells representative of all three germ layers. The capacity of intravenously injected human bone marrow-Muse cells to repair the liver fibrosis model of immunodeficient mice was evaluated in this study. They exhibited the ability for differentiation spontaneously into hepatoblast/hepatocyte-lineage cells and high migration toward the serum and liver tissue of carbon tetrachloride-treated mice in vitro...
November 2, 2016: Cell Transplantation
https://www.readbyqxmd.com/read/27922138/mitomycin-c-treated-human-induced-pluripotent-stem-cells-as-a-safe-delivery-system-of-gold-nanorods-for-targeted-photothermal-therapy-of-gastric-cancer
#14
Meng Yang, Yanlei Liu, Wenxiu Hou, Xiao Zhi, Chunlei Zhang, Xinquan Jiang, Fei Pan, Yuming Yang, Jian Ni, Daxiang Cui
Human-induced pluripotent stem cells (iPS) possess an intrinsic tumor tropism ability. However, iPS cells are impeded in clinical applications of tumor therapy due to the formation of teratomas and their survival in normal organs such as the liver, lungs, spleen and kidneys. Mitomycin C (MMC) can overcome this limitation by suppressing iPS proliferation. Herein, we fabricated a safe delivery system of iPS cells treated with MMC loading with gold nanorods (AuNRs) for the targeted photothermal treatment of gastric cancer...
January 7, 2017: Nanoscale
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
#15
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/27705974/myeloperoxidase-anti-neutrophil-cytoplasmic-antibody-positive-interstitial-pneumonia-associated-with-granulomatosis-with-polyangiitis-diagnosed-by-surgical-lung-biopsy
#16
Haruka Chino, Eri Hagiwara, Hideya Kitamura, Tomohisa Baba, Hideaki Yamakawa, Tamiko Takemura, Takashi Ogura
Granulomatosis with polyangiitis (GPA) is a rare systemic vasculitis that often involves the lung. However, interstitial pneumonia (IP) is rarely seen in GPA patients. We herein report 3 cases of IP associated with GPA diagnosed by surgical lung biopsy. High-resolution CT showed uniform subpleural reticular opacity with traction bronchiectasis. Biopsies from all 3 patients revealed neutrophilic capillaritis, microabscesses with giant cells, and coexisting histological findings of usual IP pattern or fibrosing nonspecific IP pattern...
2016: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/27628133/human-pluripotent-stem-cells-ipsc-generation-culture-and-differentiation-to-lung-progenitor-cells
#17
Mahboobe Ghaedi, Laura E Niklason
Induced pluripotent stem (iPS) cells are the product of adult somatic cell reprogramming to an embryonic-like state by inducing a "forced" expression of specific genes. They are similar to natural pluripotent stem cells, such as embryonic stem (ES) cells, in many aspects, such as the expression of certain stem cell genes and potency and differentiability. Human iPS cells are invaluable resource for basic research, cell therapy, drug discovery, and human organ tissue engineering. iPS cells can be derived from the patient to be treated and thus are genetically identical cells that may avoid immune rejection...
September 15, 2016: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27468336/rare-presentation-of-intralobar-pulmonary-sequestration-associated-with-repeated-episodes-of-ventricular-tachycardia
#18
D Sheshagiri Rao, Ramachandra Barik
Arterial supply of an intralobar pulmonary sequestration (IPS) from the coronary circulation is extremely rare. A significant coronary steal does not occur because of dual or triple sources of blood supply to sequestrated lung tissue. We present a 60-year-old woman who presented to us with repeated episodes of monomorphic ventricular tachycardia (VT) in last 3 mo. Radio frequency ablation was ineffective. On evaluation, she had right lower lobe IPS with dual arterial blood supply, i.e., right pulmonary artery and the systemic arterial supply from the right coronary artery (RCA)...
July 26, 2016: World Journal of Cardiology
https://www.readbyqxmd.com/read/27448666/loss-of-ccr2-signaling-alters-leukocyte-recruitment-and-exacerbates-%C3%AE-herpesvirus-induced-pneumonitis-and-fibrosis-following-bone-marrow-transplantation
#19
Stephen J Gurczynski, Megan C Procario, David N O'Dwyer, Carol A Wilke, Bethany B Moore
CCR2-expressing leukocytes are required for the progression of fibrosis in models of induced lung injury as well as models of bone marrow transplant (BMT)-related idiopathic pneumonia syndrome. Infection with murid γ-herpesvirus-68 (γHV-68) results in severe pneumonitis and pulmonary fibrosis following syngeneic BMT; however, the roles that various proinflammatory leukocyte populations play in this process remain unclear. Deletion of CCR2 in both non-BMT and BMT mice increased early lytic viral replication and resulted in a reduction in the numbers of lung-infiltrating GR1+,F4/80+ and CXCR1+ cells, while maintaining robust neutrophil infiltration...
September 1, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27421574/high-resolution-ct-findings-of-idiopathic-pneumonia-syndrome-after-haematopoietic-stem-cell-transplantation-based-on-the-updated-concept-of-idiopathic-pneumonia-syndrome-by-the-american-thoracic-society-in-2011
#20
REVIEW
N Tanaka, Y Kunihiro, T Kobayashi, T Yujiri, S Kido, K Ueda, N Matsunaga
Idiopathic pneumonia syndrome (IPS) is an acute lung dysfunction of non-infectious aetiology and a severe complication following haematopoietic stem cell transplantation (HSCT). Recently, the American Thoracic Society (ATS) updated the concept of IPS and extended the concept to a wider range; it defined IPS as "an idiopathic syndrome of pneumopathy after HSCT, with evidence of widespread alveolar injury and in which infectious aetiologies and cardiac dysfunction, acute renal failure, or iatrogenic fluid overload have been excluded...
October 2016: Clinical Radiology
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