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Lung stem cell transplant

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https://www.readbyqxmd.com/read/28528427/repeated-systemic-administration-of-adipose-tissue-derived-mesenchymal-stem-cells-prevents-tracheal-obliteration-in-a-murine-model-of-bronchiolitis-obliterans
#1
William Lorenzi, Fabiany Da Costa Gonçalves, Natália Schneider, Éverton Franco Silva, Fernanda Visioli, Ana Helena Paz, Mauricio Guidi Saueressig
OBJECTIVE: To investigate the effect of adipose tissue-derived mesenchymal stem cell (ASC) administered either systemically or locally in a murine model of bronchiolitis obliterans. RESULTS: When compared to controls, systemic treatment with 10(6) ASCs on D0 and a second dose on D7 significantly prevented tracheal obliteration 28 days after heterotopic tracheal transplantation (median of 94 vs. 16%; P < 0.01). A single dose tended towards less stenosis than controls, but did not reach statistical significance (28 vs...
May 20, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/28526296/mesenchymal-stem-cells-mscs-attenuate-cutaneous-sclerodermatous-graft-versus-host-disease-scl-gvhd-through-inhibition-of-immune-cell-infiltration-in-a-mouse-model
#2
Ji-Young Lim, Da-Bin Ryu, Sung-Eun Lee, Gyeongsin Park, Chang-Ki Min
Human chronic graft-versus-host disease (CGVHD) shares clinical characteristics with a murine sclerodermatous GVHD (Scl-GVHD) model that is characterized by skin thickening and lung fibrosis. A B10.D2 → BALB/c transplant model of Scl-GVHD was used to address the therapeutic effect of mesenchymal stem cells (MSCs) on the development of CGVHD. The clinical and pathological severity of cutaneous Scl-GVHD was significantly attenuated in MSC-treated recipients relative to Scl-GVHD controls. After MSC treatment, skin collagen production was significantly reduced with consistent downregulation of TGF-β expression...
May 16, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28524369/therapeutic-roles-of-telocytes-in-ova-induced-acute-asthma-in-mice
#3
Ling Ye, Dongli Song, Meiling Jin, Xiangdong Wang
Telocytes (TCs) newly discovered as the mesenchyme-derived interstitial cells were found to have supportive effects on mesenchymal stem cells (MSCs). The present study aimed at investigating effects of TCs or TCs gathered with MSCs on experimental airway inflammation and hyper-responsiveness. The TCs were isolated from the lung tissue of the female BALB/c mice. The ovalbumin (OVA)-induced asthma model was established. TCs (1 × 10(6) /2 × 10(6) ) and/or MSCs (1 × 10(6) ) were injected through mice tail vein for consecutive three days before OVA excited the mice...
May 19, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28507545/clinical-and-molecular-heterogeneity-of-rtel1-deficiency
#4
Carsten Speckmann, Sushree Sangita Sahoo, Marta Rizzi, Shinsuke Hirabayashi, Axel Karow, Nina Kathrin Serwas, Marc Hoemberg, Natalja Damatova, Detlev Schindler, Jean-Baptiste Vannier, Simon J Boulton, Ulrich Pannicke, Gudrun Göhring, Kathrin Thomay, J J Verdu-Amoros, Holger Hauch, Wilhelm Woessmann, Gabriele Escherich, Eckart Laack, Liliana Rindle, Maximilian Seidl, Anne Rensing-Ehl, Ekkehart Lausch, Christine Jandrasits, Brigitte Strahm, Klaus Schwarz, Stephan R Ehl, Charlotte Niemeyer, Kaan Boztug, Marcin W Wlodarski
Typical features of dyskeratosis congenita (DC) resulting from excessive telomere shortening include bone marrow failure (BMF), mucosal fragility, and pulmonary or liver fibrosis. In more severe cases, immune deficiency and recurring infections can add to disease severity. RTEL1 deficiency has recently been described as a major genetic etiology, but the molecular basis and clinical consequences of RTEL1-associated DC are incompletely characterized. We report our observations in a cohort of six patients: five with novel biallelic RTEL1 mutations p...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28505159/infectious-disease-ward-admission-positively-influences-p-jiroveci-pneumonia-pjp-outcome-a-retrospective-analysis-of-116-hiv-positive-and-hiv-negative-immunocompromised-patients
#5
Alessandra Ricciardi, Elisa Gentilotti, Luigi Coppola, Gaetano Maffongelli, Carlotta Cerva, Vincenzo Malagnino, Alessia Mari, Ambra Di Veroli, Federica Berrilli, Fabiana Apice, Nicola Toschi, David Di Cave, Saverio Giuseppe Parisi, Massimo Andreoni, Loredana Sarmati
P. jiroveci (Pj) causes a potentially fatal pneumonia in immunocompromised patients and the factors associated with a bad outcome are poorly understood. A retrospective analysis on Pj pneumonia (PjP) cases occurring in Tor Vergata University Hospital, Italy, during the period 2011-2015. The patients' demographic, clinical and radiological characteristics and the Pj genotypes were considered. The study population included 116 patients, 37.9% of whom had haematological malignancy or underwent haematological stem cell transplantation (HSCT), 22...
2017: PloS One
https://www.readbyqxmd.com/read/28474513/bone-marrow-endothelial-progenitor-cells-are-the-cellular-mediators-of-pulmonary-hypertension-in-the-murine-monocrotaline-injury-model
#6
Jason M Aliotta, Mandy Pereira, Sicheng Wen, Mark S Dooner, Michael Del Tatto, Elaine Papa, Yan Cheng, Laura Goldberg, Corey E Ventetuolo, Olin Liang, James R Klinger, Peter J Quesenberry
The role of bone marrow (BM) cells in modulating pulmonary hypertensive responses is not well understood. Determine if BM-derived endothelial progenitor cells (EPCs) induce pulmonary hypertension (PH) and if this is attenuated by mesenchymal stem cell (MSC)-derived extracellular vesicles (EVs). Three BM populations were studied: (a) BM from vehicle and monocrotaline (MCT)-treated mice (PH induction), (b) BM from vehicle-, MCT-treated mice that received MSC-EV infusion after vehicle, MCT treatment (PH reversal, in vivo), (c) BM from vehicle-, MCT-treated mice cultured with MSC-EVs (PH reversal, in vitro)...
May 5, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28465690/mesenchymal-stem-cells-promoted-lung-wound-repair-through-hox-a9-during-endotoxemia-induced-acute-lung-injury
#7
Xi Xin, Liu Yan, Zhu Guangfa, Huang Yan, Li Keng, Wu Chunting
Objectives. Acute lung injury (ALI) is a common clinical critical disease. Stem cells transplantation is recognized as an effective way to repair injured lung tissues. The present study was designed to evaluate the effects of mesenchymal stem cells (MSCs) on repair of lung and its mechanism. Methods. MSCs carrying GFP were administrated via trachea into wild-type SD rats 4 hours later after LPS administration. The lung histological pathology and the distribution of MSCs were determined by HE staining and fluorescence microscopy, respectively...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28465472/cancer-stemness-and-metastatic-potential-of-the-novel-tumor-cell-line-k3-an-inner-mutated-cell-of-bone-marrow-derived-mesenchymal-stem-cells
#8
Hui Qian, Xiaoqing Ding, Jiao Zhang, Fei Mao, Zixuan Sun, Haoyuan Jia, Lei Yin, Mei Wang, Xu Zhang, Bin Zhang, Yongmin Yan, Wei Zhu, Wenrong Xu
Mesenchymal stem cells (MSCs) transplantation has been used for therapeutic applications in various diseases. Here we report MSCs can malignantly transform in vivo. The novel neoplasm was found on the tail of female rat after injection with male rat bone marrow-derived MSCs (rBM-MSCs) and the new tumor cell line, K3, was isolated from the neoplasm. The K3 cells expressed surface antigens and pluripotent genes similar to those of rBM-MSCs and presented tumor cell features. Moreover, the K3 cells contained side population cells (SP) like cancer stem cells (CSCs), which might contribute to K3 heterogeneity and tumorigenic capacity...
April 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28451433/lenalidomide-induced-eosinophilic-pneumonia
#9
Andrew Toma, Aaron P Rapoport, Allen Burke, Ashutosh Sachdeva
Multiple myeloma is a plasma cell dyscrasia accounting for 10% of haematologic malignancies. Lenalidomide is an immunomodulatory drug analogous to thalidomide that is approved for use in patients with myelodysplastic syndrome, and in combination with dexamethasone for refractory or relapsed multiple myeloma. Lenalidomide is preferred to thalidomide because of reduced toxicity, and pulmonary side effects are considered rare. We present, to our knowledge, an unusual and first reported case of a patient with relapsed multiple myeloma who received lenalidomide after autologous stem cell transplant, then developed eosinophilic pneumonia presenting as dyspnoea, peripheral eosinophilia, and bilateral pulmonary opacities...
July 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/28422804/a-review-of-ocular-graft-versus-host-disease
#10
Saleha Z Munir, James Aylward
: Graft-versus-host disease (GVHD) is a major complication that occurs following allogeneic hematopoietic stem cell transplantation, which is a potential curative therapy used in a variety of malignant or benign hematological diseases. Graft-versus-host disease primarily occurs in many organs, but most notably in the skin, lungs, gastrointestinal tract, liver, eyes, mucosa, and musculoskeletal system. Ocular manifestations of GVHD may precede other systemic GVHD findings, and it may be a poor prognosis for mortality...
May 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28420415/distribution-pattern-following-systemic-mesenchymal-stem-cell-injection-depends-on-the-age-of-the-recipient-and-neuronal-health
#11
Claire Fabian, Yahaira Naaldijk, Christiane Leovsky, Adiv A Johnson, Lukas Rudolph, Carsten Jaeger, Katrin Arnold, Alexandra Stolzing
BACKGROUND: Mesenchymal stem cells (MSCs) show therapeutic efficacy in many different age-related degenerative diseases, including Alzheimer's disease. Very little is currently known about whether or not aging impacts the transplantation efficiency of MSCs. METHODS: In this study, we investigated the distribution of intravenously transplanted syngeneic MSCs derived from young and aged mice into young, aged, and transgenic APP/PS1 Alzheimer's disease mice. MSCs from male donors were transplanted into female mice and their distribution pattern was monitored by PCR using Y-chromosome specific probes...
April 18, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28409093/first-case-of-invasive-magnusiomyces-capitatus-infection-in-slovakia
#12
Dominika Tanuskova, Julia Horakova, Peter Svec, Ivana Bodova, Martina Lengerova, Matej Bezdicek, Miroslava Poczova, Jozef Koppl, Alexandra Kolenova
Magnusiomyces capitatus (previously known as Geotrichum capitatum or Blastoschizomyces capitatus or Trichosporon capitatum) is a rare cause of fungal infection in immunocompromised patients. Most of these cases (87%) have been reported from the Mediterranean region, as it is extremely rare to recognize it in other regions. Here we report a first case of disseminated M. capitatus infection in Slovakia. The patient - 19 year old woman with myelodysplastic syndrome was diagnosed with M. capitatus fungemia after allogeneic stem cell transplantation...
June 2017: Medical Mycology Case Reports
https://www.readbyqxmd.com/read/28407835/-recurrent-pulmonary-infection-and-oral-mucosal-ulcer
#13
Fei-Mei Kuang, Lan-Lan Tang, Hui Zhang, Min Xie, Ming-Hua Yang, Liang-Chun Yang, Yan Yu, Li-Zhi Cao
An 8-year-old girl who had experienced intermittent cough and fever over a 3 year period, was admitted after experiencing a recurrence for one month. One year ago the patient experienced a recurrent oral mucosal ulcer. Physical examination showed vitiligo in the skin of the upper right back. Routine blood tests and immune function tests performed in other hospitals had shown normal results. Multiple lung CT scans showed pulmonary infection. The patient had recurrent fever and cough and persistent presence of some lesions after anti-infective therapy...
April 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28396164/dose-escalation-of-total-marrow-irradiation-in-high-risk-patients-undergoing-allogeneic-hematopoietic-stem-cell-transplantation
#14
Susanta Hui, Claudio Brunstein, Yutaka Takahashi, Todd DeFor, Shernan G Holtan, Veronika Bachanova, Christopher Wilke, Darren Zuro, Celalettin Ustun, Daniel Weisdorf, Kathryn Dusenbery, Michael R Verneris
Patients with refractory leukemia or minimal residual disease (MRD) at transplantation are at increased risk of relapse. Augmentation of irradiation, especially to sites of disease (ie, bone marrow) is one potential strategy for overcoming this risk. We studied the feasibility of radiation dose escalation in high-risk patients using total marrow irradiation (TMI) in a phase I dose-escalation trial. Four pediatric and 8 adult patients received conditioning with cyclophosphamide and fludarabine in conjunction with image-guided radiation to the bone marrow at 15 Gy and 18 Gy (in 3-Gy fractions), while maintaining the total body irradiation (TBI) dose to the vital organs (lungs, hearts, eyes, liver, and kidneys) at <13...
April 7, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28387316/lkb1-inactivation-drives-lung-cancer-lineage-switching-governed-by-polycomb-repressive-complex-2
#15
Haikuo Zhang, Christine Fillmore Brainson, Shohei Koyama, Amanda J Redig, Ting Chen, Shuai Li, Manav Gupta, Carolina Garcia-de-Alba, Margherita Paschini, Grit S Herter-Sprie, Gang Lu, Xin Zhang, Bryan P Marsh, Stephanie J Tuminello, Chunxiao Xu, Zhao Chen, Xiaoen Wang, Esra A Akbay, Mei Zheng, Sangeetha Palakurthi, Lynette M Sholl, Anil K Rustgi, David J Kwiatkowski, J Alan Diehl, Adam J Bass, Norman E Sharpless, Glenn Dranoff, Peter S Hammerman, Hongbin Ji, Nabeel Bardeesy, Dieter Saur, Hideo Watanabe, Carla F Kim, Kwok-Kin Wong
Adenosquamous lung tumours, which are extremely poor prognosis, may result from cellular plasticity. Here, we demonstrate lineage switching of KRAS+ lung adenocarcinomas (ADC) to squamous cell carcinoma (SCC) through deletion of Lkb1 (Stk11) in autochthonous and transplant models. Chromatin analysis reveals loss of H3K27me3 and gain of H3K27ac and H3K4me3 at squamous lineage genes, including Sox2, ΔNp63 and Ngfr. SCC lesions have higher levels of the H3K27 methyltransferase EZH2 than the ADC lesions, but there is a clear lack of the essential Polycomb Repressive Complex 2 (PRC2) subunit EED in the SCC lesions...
April 7, 2017: Nature Communications
https://www.readbyqxmd.com/read/28383049/suppressor-of-cytokine-signaling-2-negatively-regulates-nk-cell-differentiation-by-inhibiting-jak2-activity
#16
Won Sam Kim, Mi Jeong Kim, Dong Oh Kim, Jae-Eun Byun, Hangsak Huy, Hae Young Song, Young-Jun Park, Tae-Don Kim, Suk Ran Yoon, Eun-Ji Choi, Haiyoung Jung, Inpyo Choi
Suppressor of cytokine signaling (SOCS) proteins are negative regulators of cytokine responses. Although recent reports have shown regulatory roles for SOCS proteins in innate and adaptive immunity, their roles in natural killer (NK) cell development are largely unknown. Here, we show that SOCS2 is involved in NK cell development. SOCS2(-/-) mice showed a high frequency of NK cells in the bone marrow and spleen. Knockdown of SOCS2 was associated with enhanced differentiation of NK cells in vitro, and the transplantation of hematopoietic stem cells (HSCs) into congenic mice resulted in enhanced differentiation in SOCS2(-/-) HSCs...
April 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28372287/organ-reconstruction-dream-or-reality-for%C3%A2-the%C3%A2-future
#17
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/28370830/peptide-coated-semiconductor-polymer-dots-for-stem-cells-labeling-and-tracking
#18
Zihui Meng, Lei Guo, Qiong Li
Stem cell therapy is rapidly moving toward translation to clinical application. To elucidate the therapeutic effect, a robust method that allows tracking of the stem cells over an extended period of time is required. Herein, semiconducting polymer dots (Pdots) are demonstrated for their use in bright labeling and tracking of human mesenchymal stem cells (MSCs) in vitro and in vivo. The Pdots coated with a cell-penetrating peptide (R8) showed remarkable endocytic uptake efficiency that was 15 times higher than that of carboxyl Pdots and more than 200 times than that of bare Pdots...
March 28, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28367431/a-3-year-old-girl-with-recurrent-infections-and-autoimmunity-due-to-a-stat1-gain-of-function-mutation-the-expanding-clinical-presentation-of-primary-immunodeficiencies
#19
Juan Carlos Aldave Becerra, Enrique Cachay Rojas
We report a 3-year-old Peruvian girl, born to non-consanguineous parents. At the age of 8 months, she had a severe pneumonia complicated with empyema that required thoracic drainage and mechanical ventilation. Although no microorganisms were isolated, the patient recovered with broad-spectrum antibiotics. Since that date, she has presented multiple episodes of pneumonia and recurrent episodes of bronchospasm. At 1 year 5 months of age, the patient began with recurrent episodes of oropharyngeal, vaginal, and skin candidiasis, which improved transiently after using oral azole drugs...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28355352/a-novel-frameshift-mutation-of-chediak-higashi-syndrome-and-treatment-in-the-accelerated-phase
#20
X L Wu, X Q Zhao, B X Zhang, F Xuan, H M Guo, F T Ma
Chediak-Higashi syndrome (CHS) is a rare autosomal recessive immunodeficiency disease characterized by frequent infections, hypopigmentation, progressive neurologic deterioration and hemophagocytic lymphohistiocytosis (HLH), known as the accelerated phase. There is little experience in the accelerated phase of CHS treatment worldwide. Here, we present a case of a 9-month-old boy with continuous high fever, hypopigmentation of the skin, enlarged lymph nodes, hepatosplenomegaly and lung infection. He was diagnosed with CHS by gene sequencing, and had entered the accelerated phase...
March 23, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
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