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Regenerative injection therapy

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https://www.readbyqxmd.com/read/28326790/nerve-cells-decide-to-orient-inside-an-injectable-hydrogel-with-minimal-structural-guidance
#1
Jonas C Rose, María Cámara-Torres, Khosrow Rahimi, Jens Köhler, Martin Möller, Laura De Laporte
Injectable biomaterials provide the advantage of a minimally invasive application but mostly lack the required structural complexity to regenerate aligned tissues. Here, we report a new class of tissue regenerative materials that can be injected and form an anisotropic matrix with controlled dimensions using rod-shaped, magnetoceptive microgel objects. Microgels are doped with small quantities of superparamagnetic iron oxide nanoparticles (0.0046 vol %), allowing alignment by external magnetic fields in the millitesla order...
March 24, 2017: Nano Letters
https://www.readbyqxmd.com/read/28298296/fabrication-of-synthetic-mesenchymal-stem-cells-for-the-treatment-of-acute-myocardial-infarction-in-mice
#2
Lan Luo, Junnan Tang, Kodai Nishi, Chen Yan, Phuong-Uyen Dinh, Jhon Cores, Takashi Kudo, Jinying Zhang, Tao-Sheng Li, Ke Cheng
Rationale: Stem cell therapy faces a number of challenges. It is difficult to grow, preserve, and transport stem cells before they are administered to the patient. Synthetic analogs for stem cells represent a new approach to overcome these hurdles and hold the potential to revolutionize regenerative medicine. Objective: We aim to fabricate synthetic analogs of stem cells and test their therapeutic potential for treatment of acute myocardial infarction in mice. Methods and Results: We packaged secreted factors from human bone marrow-derived mesenchymal stem cells (MSC) into Poly(lactic-co-glycolic acid) PLGA microparticles and then coated them with MSC membranes...
March 15, 2017: Circulation Research
https://www.readbyqxmd.com/read/28297568/safety-studies-for-use-of-adipose-tissue-derived-mesenchymal-stromal-stem-cells-in-a-rabbit-model-for-osteoarthritis-to-support-a-phase-i-clinical-trial
#3
Scott M Riester, Janet M Denbeigh, Yang Lin, Dakota L Jones, Tristan de Mooij, Eric A Lewallen, Hai Nie, Christopher R Paradise, Darcie J Radel, Amel Dudakovic, Emily T Camilleri, Dirk R Larson, Wenchun Qu, Aaron J Krych, Matthew A Frick, Hee-Jeong Im, Allan B Dietz, Jay Smith, Andre J van Wijnen
Adipose-derived mesenchymal stem cells (AMSCs) offer potential as a therapeutic option for clinical applications in musculoskeletal regenerative medicine because of their immunomodulatory functions and capacity for trilineage differentiation. In preparation for a phase I clinical trial using AMSCs to treat patients with osteoarthritis, we carried out preclinical studies to assess the safety of human AMSCs within the intra-articular joint space. Culture-expanded human AMSCs grown in human platelet-lysate were delivered via intra-articular injections into normal healthy rabbit knees and knees at risk for the development of osteoarthritis after bilateral medial anterior hemimeniscectomy...
March 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28290605/transplantation-of-betatrophin-expressing-adipose-derived-mesenchymal-stem-cells-induces-%C3%AE-cell-proliferation-in-diabetic-mice
#4
Liang-Liang Sun, Tian-Jin Liu, Limei Li, Wei Tang, Jun-Jie Zou, Xiang-Fang Chen, Jiao-Yang Zheng, Bei-Ge Jiang, Yong-Quan Shi
Recent progress in regenerative medicine has suggested that mesenchymal stem cell (MSC)-based therapy is a novel potential cure for diabetes. Betatrophin is a newly identified hormone that can increase the production and expansion of insulin-secreting β-cells when administered to mice. In this study, we evaluated the effect of betatrophin overexpression by human adipose-derived MSCs (ADMSCs) by in vitro experiments, as well as following their transplantation into a mice with streptozotocin (STZ)-induced diabetes...
March 10, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28266553/experimental-evaluation-of-kidney-regeneration-by-organ-scaffold-recellularization
#5
Andrea Remuzzi, Marina Figliuzzi, Barbara Bonandrini, Sara Silvani, Nadia Azzollini, Roberta Nossa, Ariela Benigni, Giuseppe Remuzzi
The rising number of patients needing renal replacement therapy, alongside the significant clinical and economic limitations of current therapies, creates an imperative need for new strategies to treat kidney diseases. Kidney bioengineering through the production of acellular scaffolds and recellularization with stem cells is one potential strategy. While protocols for obtaining organ scaffolds have been developed successfully, scaffold recellularization is more challenging. We evaluated the potential of in vivo and in vitro kidney scaffold recellularization procedures...
March 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28258952/in-situ-activation-of-penile-progenitor-cells-with-low-intensity-extracorporeal-shockwave-therapy
#6
Guiting Lin, Amanda B Reed-Maldonado, Bohan Wang, Yung-Chin Lee, Jun Zhou, Zhihua Lu, Guifang Wang, Lia Banie, Tom F Lue
BACKGROUND: We previously reported that progenitor cells, or stem cells, exist within penile tissue. We hypothesized that acoustic wave stimulation by low-intensity extracorporeal shockwave therapy (Li-ESWT) would activate local stem or progenitor cells within the penis, producing regenerative effects. AIMS: To study the feasibility of in situ penile progenitor cell activation by Li-ESWT. METHODS: We performed a cohort analysis of young and middle-age male Sprague-Dawley rats treated with 5-ethynyl-2'-deoxyuridine (EdU) pulse followed by Li-ESWT...
February 28, 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28258665/ppar-%C3%AE-agonist-with-mesenchymal-stem-cells-induces-type-ii-collagen-producing-chondrocytes-in-human-arthritic-synovial-fluid
#7
Bruce E Heck, Joshua J Park, Vishruti Makani, Eun-Cheol Kim, Dong Hyun Kim
Osteoarthritis (OA) is an inflammatory joint disease characterized by degeneration of articular cartilage within synovial joints. An estimated 27 million Americans suffer from OA and the population is expected to reach 67 million in USA by 2030. Thus, it is urgent to find an effective OA treatment. Traditional OA treatments have no disease-modifying effect while regenerative OA therapies such as autologous chondrocyte implantation (ACI) show some promise. Nonetheless, current regenerative therapies do not overcome synovial inflammation that suppresses the differentiation of mesenchymal stem cells (MSCs) to chondrocytes and the expression of type II collagen, the major constituent of functional cartilage...
March 3, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28257636/endothelial-and-smooth-muscle-cells-derived-from-human-cardiac-explants-demonstrate-angiogenic-potential-and-suitable-for-design-of-cell-containing-vascular-grafts
#8
I S Zakharova, M K Zhiven', Sh B Saaya, A I Shevchenko, A M Smirnova, A Strunov, A A Karpenko, E A Pokushalov, L N Ivanova, P I Makarevich, Y V Parfyonova, E Aboian, S M Zakian
BACKGROUND: Endothelial and smooth muscle cells are considered promising resources for regenerative medicine and cell replacement therapy. It has been shown that both types of cells are heterogeneous depending on the type of vessels and organs in which they are located. Therefore, isolation of endothelial and smooth muscle cells from tissues relevant to the area of research is necessary for the adequate study of specific pathologies. However, sources of specialized human endothelial and smooth muscle cells are limited, and the search for new sources is still relevant...
March 3, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28256256/therapeutic-potentials-of-mesenchymal-stem-cells-on-the-renal-cortex-of-experimentally-induced-hypertensive-albino-rats-relevant-role-of-nrf2
#9
Eman M Mohamed, Mai A Samak
Bone marrow derived-mesenchymal stem cells (BM-MSCs) have brought great attention in regenerative medicine field, various experimental & clinical trials were held to investigate their therapeutic effects in different disorders. We designed a histological & immunohistochemical study to evaluate effectiveness of MSCs therapy in withhold of end-stage renal disease (ESRD) secondary to hypertension which has become a growing & striking public health problem. 30 adult male albino rats were utilized, 20 of them were exposed to experimental induction of hypertension, then divided equally to MSCs treated group (injected with 1×10(6) fluorescent labeled cell i...
January 20, 2017: Tissue & Cell
https://www.readbyqxmd.com/read/28241882/systematic-review-of-patient-factors-affecting-adipose-stem-cell-viability-and-function-implications-for-regenerative-therapy
#10
REVIEW
Jajini Varghese, Michelle Griffin, Afshin Mosahebi, Peter Butler
BACKGROUND: The applications for fat grafting have increased recently, within both regenerative and reconstructive surgery. Although fat harvesting, processing and injection techniques have been extensively studied and standardised, this has not had a big impact on the variability of outcome following fat grafting. This suggests a possible larger role of patient characteristics on adipocyte and adipose-derived stem cell (ADSC) viability and function. This systematic review aims to collate current evidence on the effect of patient factors on adipocyte and ADSC behaviour...
February 28, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28237907/pathology-targeted-cell-delivery-via-injectable-micro-scaffold-capsule-mediated-by-endogenous-tgase
#11
Chunxiao Qi, Yaqian Li, Patrick Badger, Hongsheng Yu, Zhifeng You, Xiaojun Yan, Wei Liu, Yan Shi, Tie Xia, Jiahong Dong, Chenyu Huang, Yanan Du
Targeted cell delivery to lesion sites via minimally invasive approach remains an unmet need in regenerative medicine to endow satisfactory therapeutic efficacy and minimized side-effects. Here, we rationally designed a pathology-targeted cell delivery strategy leveraging injectable micro-scaffolds as cell-loading capsule and endogenous tissue transglutaminase (TGase) at lesion site as adhesive. Up-regulated TGase post-liver injury catalyzed chemical bonding between the glutamine and lysine residues on liver surface and micro-scaffolds both ex vivo and in vivo, facilitating sufficient adhesion on the pathological liver...
February 17, 2017: Biomaterials
https://www.readbyqxmd.com/read/28237777/integrin-linked-kinase-improves-functional-recovery-of-diabetic-cystopathy-and-mesenchymal-stem-cell-survival-and-engraftment-in-rats
#12
Yi Huang, Liucheng Ding, Yunpeng Shao, Zhengsen Chen, Baixin Shen, Yinchao Ma, Lijie Zhu, Zhongqing Wei
OBJECTIVES: Diabetic cystopathy (DCP), characterized by peripheral neuropathy-associated bladder dysfunction, is a common urinary complication in patients with diabetes (~80%). Bone marrow mesenchymal stem cell (BMMSC) transplantation, a new and emerging regenerative therapy, provides a curative option for DCP. However, the application of this therapy is limited by the low survival rate and engraftment of transplanted stem cells. This study was undertaken to determine whether integrin-linked kinase (ILK) overexpression would improve stem cell survival and engraftment after BMMSC transplantation...
February 22, 2017: Canadian Journal of Diabetes
https://www.readbyqxmd.com/read/28229419/echocardiography-guided-intramyocardial-injection-method-in-a-murine-model
#13
Kay Maeda, Rick Seymour, Marc Ruel, Erik J Suuronen
Cardiac regenerative therapy has received attention as a potentially revolutionary approach for treating the damaged heart. The mouse model of myocardial infarction (MI) remains one of the most common tools for the evaluation of such new therapies. Typically, intramyocardial administration of cells or biomaterials in mice is performed by an open-chest surgical procedure, but less invasive delivery methods are becoming available. Echocardiography-based transthoracic myocardial injection is one such minimally invasive approach that can reliably deliver therapeutics to the target site with limited complications and quick recovery for the animal following the procedure...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28216604/evaluation-of-not-activated-and-activated-prp-in-hair-loss-treatment-role-of-growth-factor-and-cytokine-concentrations-obtained-by-different-collection-systems
#14
Pietro Gentile, John P Cole, Megan A Cole, Simone Garcovich, Alessandra Bielli, Maria Giovanna Scioli, Augusto Orlandi, Chiara Insalaco, Valerio Cervelli
Platelet rich plasma (PRP) was tested as a potential therapy for androgenetic alopecia (AGA) through two different clinical protocols in which one population (18 participants) received half-head treatment with autologous non-activated PRP (A-PRP) produced by CPunT Preparation System (Biomed Device, Modena, Italy) and the other half-head with placebo, and a second separated population in which all participants (n = 6, 3 participants per group) received treatment with calcium-activated PRP (AA-PRP) produced from one of two different PRP collection devices (Regen Blood Cell Therapy or Arthrex Angel System)...
February 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28215833/effects-of-platelet-rich-plasma-against-experimental-ischemia-reperfusion-injury-in-rat-testis
#15
C A Sekerci, Y Tanidir, T E Sener, G Sener, O Cevik, A Yarat, B Alev-Tuzuner, S Cetinel, E Kervancioglu, A Sahan, C Akbal
BACKGROUND: Testicular torsion is a common problem and, to date, there is no agent to preserve testicular function following detorsion. Platelet-rich plasma (PRP), with its rich growth factor composition, has proven beneficial in regenerative therapy. It is believed that PRP has not been studied in testis for ischemia/reperfusion (I/R) injury. OBJECTIVE: This study investigated the effect of PRP in an I/R rat model 1 month after detorsion. STUDY DESIGN: Of 24 adult male Sprague-Dawley rats, 18 were randomly assigned into three groups, with six in each: control, I/R and I/R + PRP...
January 23, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28207177/quaking-is-a-key-regulator-of-endothelial-cell-differentiation-neovascularization-and-angiogenesis
#16
Amy Cochrane, Sophia Kelaini, Marianna Tsifaki, James Bojdo, Marta Vilà-González, Daiana Drehmer, Rachel Caines, Corey Magee, Magdalini Eleftheriadou, Yanhua Hu, David Grieve, Alan W Stitt, Lingfang Zeng, Qingbo Xu, Andriana Margariti
The capability to derive endothelial cell (ECs) from induced pluripotent stem cells (iPSCs) holds huge therapeutic potential for cardiovascular disease. This study elucidates the precise role of the RNA-binding protein Quaking isoform 5 (QKI-5) during EC differentiation from both mouse and human iPSCs (hiPSCs) and dissects how RNA-binding proteins can improve differentiation efficiency toward cell therapy for important vascular diseases. iPSCs represent an attractive cellular approach for regenerative medicine today as they can be used to generate patient-specific therapeutic cells toward autologous cell therapy...
February 16, 2017: Stem Cells
https://www.readbyqxmd.com/read/28202059/cardiosphere-derived-cells-do-not-improve-cardiac-function-in-rats-with-cardiac-failure
#17
Taís Hanae Kasai-Brunswick, Andréa Rodrigues da Costa, Raiana Andrade Quintanilha Barbosa, Bruna Farjun, Fernanda Cristina Paccola Mesquita, Danúbia Silva Dos Santos, Isalira Peroba Ramos, Grazielle Suhett, Guilherme Visconde Brasil, Sandro Torrentes da Cunha, José Oscar R Brito, Juliana do Amaral Passipieri, Adriana Bastos Carvalho, Antonio Carlos Campos de Carvalho
BACKGROUND: Heart failure represents an important public health issue due to its high costs and growing incidence worldwide. Evidence showing the regenerative potential of postmitotic heart tissue has suggested the existence of endogenous cardiac stem cells in adult hearts. Cardiosphere-derived cells (CDC) constitute a candidate pool of such cardiac stem cells. Previous studies using acute myocardial infarction (MI) models in rodents demonstrated an improvement in cardiac function after cell therapy with CDC...
February 15, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28195036/gsk-3%C3%AE-inhibition-induced-neuroprotection-regeneration-and-functional-recovery-after-intracerebral-hemorrhagic-stroke
#18
Yingying Zhao, Zheng Zachory Wei, James Ya Zhang, Yongbo Zhang, Soonmi Won, Jinmei Sun, Shan Ping Yu, Jimei Li, Ling Wei
Hemorrhagic stroke is a devastating disease that lacks effective therapies. In the present investigation, we tested 6-bromoindirubin-3'-oxime (BIO) as a selective glycogen synthase kinase-3β (GSK-3β) inhibitor in a mouse model of intracerebral hemorrhage (ICH). ICH was induced by injection of collagenase IV into the striatum of 8 to 10-week old C57BL/6 mice. BIO (8 µg/kg, i.p.) was administered following either an acute delivery (0 - 2 hr delay) or a prolonged regimen (every 48 hrs starting at 3 days postICH)...
February 14, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28194374/regenerative-potential-of-the-cartilaginous-tissue-in-mesenchymal-stem-cells-update-limitations-and-challenges
#19
Ivana Beatrice Mânica da Cruz, Antônio Lourenço Severo, Verônica Farina Azzolin, Luiz Filipe Machado Garcia, André Kuhn, Osvandré Lech
Advances in the studies with adult mesenchymal stem cells (MSCs) have turned tissue regenerative therapy into a promising tool in many areas of medicine. In orthopedics, one of the main challenges has been the regeneration of cartilage tissue, mainly in diarthroses. In the induction of the MSCs, in addition to cytodifferentiation, the microenvironmental context of the tissue to be regenerated and an appropriate spatial arrangement are extremely important factors. Furthermore, it is known that MSC differentiation is fundamentally determined by mechanisms such as cell proliferation (mitosis), biochemical-molecular interactions, movement, cell adhesion, and apoptosis...
January 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28191592/what-is-the-clinical-evidence-on-regenerative-medicine-in-intervertebral-disc-degeneration
#20
REVIEW
M Basso, L Cavagnaro, A Zanirato, S Divano, C Formica, M Formica, L Felli
PURPOSE: This review aims to explore and summarize the current clinical evidence about the use of regenerative medicine such as mesenchymal stem cells or platelet-rich plasma in intervertebral disc regeneration, in order to clarify the state of art of these novel approaches. MATERIALS AND METHODS: We performed a research of the available literature about regenerative medicine strategies aiming to prevent intervertebral disc degeneration. All preclinical trials and in vitro studies were excluded...
February 13, 2017: Musculoskeletal Surgery
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