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Regenerative injection therapy

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https://www.readbyqxmd.com/read/28714578/efficacy-and-initial-safety-profile-of-cxcl12-treatment-in-a-rodent-model-of-urinary-sphincter-deficiency
#1
J Koudy Williams, Ashley Dean, Shannon Lankford, Karl-Erik Andersson
Disappointing results of skeletal muscle precursor cell (skMPC) therapy for women with intrinsic urinary sphincter deficiency (ISD) associated urinary incontinence has increased interest in alternative sphincter regenerative approaches. This study was to measure the safety and efficacy of the cell homing chemokine CXCL12 versus skMPCs in a rat model of ISD. Thirty-six adult female Sprague Dawley rats were divided into 6 treatment (Tx) conditions: (a) no ISD/noTx [Control]; (b) ISD/noTx; (c) ISD + skMPCs; (d) ISD + 3...
July 17, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28701189/stromal-derived-factor-1-mediates-the-lung-regenerative-effects-of-mesenchymal-stem-cells-in-a-rodent-model-of-bronchopulmonary-dysplasia
#2
Joel Reiter, Shelley Drummond, Ibrahim Sammour, Jian Huang, Victoria Florea, Polliana Dornas, Joshua M Hare, Claudia O Rodrigues, Karen C Young
BACKGROUND: Mesenchymal stem cells (MSCs) attenuate lung injury in experimental models of bronchopulmonary dysplasia (BPD). Stromal derived factor-1 (SDF-1), a chemokine secreted by MSCs, modulates angiogenesis and stem cell recruitment. Here we tested the hypothesis that SDF-1 mediates MSC protective effects in experimental BPD by modulating angiogenesis. METHODS: SDF-1 was knocked down in MSCs using lentiviral vectors carrying anti-SDF-1 short hairpin RNA (MSC-SDF KD)...
July 12, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28691584/fibrin-gel-as-a-scaffold-for-photoreceptor-cells-differentiation-from-conjunctiva-mesenchymal-stem-cells-in-retina-tissue-engineering
#3
Mostafa Soleimannejad, Somayeh Ebrahimi-Barough, Masoud Soleimani, Samad Nadri, Seyed Mohammad Tavangar, Ramak Roohipoor, Meysam Yazdankhah, Neda Bayat, Mohammad Riazi-Esfahani, Jafar Ai
Stem cell-based therapies are attraction approaches for regenerative medicine for treating retinal diseases. One of the limitations in cell therapy is cell death following post-injection whit preventing functional integration with retinal tissue. Fibrin gel, a bio-polymeric material with excellent biocompatibility, provides numerous advantages as a tissue engineering scaffold and a stem cell carrier. Therefore, current research is focusing on developing fibrin hydrogel scaffolds to protect stem cells during delivery and to stimulate endogenous regeneration through interactions of transplanted stem cells and retinal tissue...
July 10, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28684531/cardiomyocyte-regeneration-a-consensus-statement
#4
Thomas Eschenhagen, Roberto Bolli, Thomas Braun, Loren J Field, Bernd K Fleischmann, Jonas Frisén, Mauro Giacca, Joshua M Hare, Steven R Houser, Richard T Lee, Eduardo Marbán, James F Martin, Jeffery D Molkentin, Charles E Murry, Paul R Riley, Pilar Ruiz-Lozano, Hesham A Sadek, Mark A Sussman, Joseph A Hill
Cell therapy is an exciting option for repairing the injured heart, one which has attracted considerable interest over the past 15 years. Consensus exists that the injection/infusion or tissue-based implantation of various cell types may exert therapeutic effects, and there is general agreement that additional molecular, translational and clinical studies are required to define the optimal cell source, method of delivery, and underlying mechanism(s) of action.One of the remaining questions in this field pertains to cardiomyocyte turnover under normal and diseased conditions and its contribution to the beneficial effects of cell therapy...
July 6, 2017: Circulation
https://www.readbyqxmd.com/read/28676760/combined-oral-administration-of-gaba-and-dpp-4-inhibitor-prevents-beta-cell-damage-and-promotes-beta-cell-regeneration-in-mice
#5
Wenjuan Liu, Dong Ok Son, Harry K Lau, Yinghui Zhou, Gerald J Prud'homme, Tianru Jin, Qinghua Wang
γ-aminobutyric acid (GABA) or glucagon-like peptide-1 based drugs, such as sitagliptin (a dipeptidyl peptidase-4 inhibitor), were shown to induce beta cell regenerative effects in various diabetic mouse models. We propose that their combined administration can bring forth an additive therapeutic effect. We tested this hypothesis in a multiple low-dose streptozotocin (STZ)-induced beta cell injury mouse model (MDSD). Male C57BL/6J mice were assigned randomly into four groups: non-treatment diabetic control, GABA, sitagliptin, or GABA plus sitagliptin...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28669721/initial-investigation-of-individual-and-combined-annulus-fibrosus-and-nucleus-pulposus-repair-ex-vivo
#6
Stephen R Sloan, Devis Galesso, Cynthia Secchieri, Connor Berlin, Roger Hartl, Lawrence J Bonassar
Novel tissue engineered and biomaterial approaches to treat intervertebral disc (IVD) degeneration focus on single aspects of the progressive disease and hence are insufficient repair strategies. In this study, annulus fibrosus (AF) and nucleus pulposus (NP) biomaterial repair strategies were used individually and combined to treat IVD degeneration modeled in ex vivo rat-tail motion segments by annulotomy and nucleotomy. An injectable riboflavin cross-linked high-density collagen gel patched defects in the AF, while NP repair consisted of injections of a modified hyaluronic acid (HA) hydrogel...
June 29, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28653440/treatment-of-breast-cancer-related-lymphedema-with-adipose-derived-regenerative-cells-and-fat-grafts-a-feasibility-and-safety-study
#7
Navid Mohamadpour Toyserkani, Charlotte Harken Jensen, Ditte Caroline Andersen, Søren Paludan Sheikh, Jens Ahm Sørensen
Breast cancer-related lymphedema (BCRL) is a debilitating late complication with a lack of treatment opportunities. Recent studies have suggested that mesenchymal stromal cells can alleviate lymphedema. Herein, we report the results from the first human pilot study with freshly isolated adipose-derived regenerative cells (ADRC) for treating lymphedema with 6 months follow-up. Ten BCRL patients were included. ADRC was injected directly into the axillary region, which was combined with a scar-releasing fat graft procedure...
June 27, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28647733/role-of-mesenchymal-stem-cells-in-bone-regenerative-medicine-what-is-the-evidence
#8
Ahmad Oryan, Amir Kamali, Ali Moshiri, Mohamadreza Baghaban Eslaminejad
Healing and regeneration of bone injuries, particularly those that are associated with large bone defects, are a complicated process. There is growing interest in the application of osteoinductive and osteogenic growth factors and mesenchymal stem cells (MSCs) in order to significantly improve bone repair and regeneration. MSCs are multipotent stromal stem cells that can be harvested from many different sources and differentiated into a variety of cell types, such as preosteogenic chondroblasts and osteoblasts...
June 24, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28632772/characterization-of-slow-cycling-cells-in-the-mouse-cochlear-lateral-wall
#9
Yang Li, Kotaro Watanabe, Masato Fujioka, Kaoru Ogawa
Cochlear spiral ligament fibrocytes (SLFs) play essential roles in the physiology of hearing including ion recycling and the generation of endocochlear potential. In adult animals, SLFs can repopulate after damages, yet little is known about the characteristics of proliferating cells that support SLFs' self-renewal. Here we report in detail about the characteristics of cycling cells in the spiral ligament (SL). Fifteen P6 mice and six noise-exposed P28 mice were injected with 5-bromo-2'-deoxyuridine (BrdU) for 7 days and we chased BrdU retaining cells for as long as 60 days...
2017: PloS One
https://www.readbyqxmd.com/read/28623695/injectable-cytocompatible-elastic-free-radical-scavenging-and-electroconductive-hydrogel-for-cardiac-cell-encapsulation
#10
Remya Komeri, Jayabalan Muthu
The injectable electroconductive hydrogels are desirable for the regenerative therapy of electroresponsive tissues like heart. With the present electroconductive hydrogels, the issues of cytotoxicity, biodegradability, and diffusion of the conductive element and poor water solubility limit their applications. Here, electroconductive injectable single component hydrogels, PANIE-P/PEGDA and PANIS-P/PEGDA, are prepared with fumarate-co-PEG-co-sebacate comacromer conjugated with non-sulfonated/sulfonated polyaniline and PEGDA...
June 1, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28621916/construction-of-anterior-hemi-corneal-equivalents-using-nontransfected-human-corneal-cells-and-transplantation-in-dog-models
#11
Bin Xu, Zhan Song, Tingjun Fan
Tissue-engineered human anterior hemi-cornea (TE-aHC) is a promising equivalent for treating anterior lamellar keratopathy to surmount the severe shortage of donated corneas. This study was intended to construct a functional TE-aHC with nontransfected human corneal stromal (ntHCS) and epithelial (ntHCEP) cells using acellular porcine corneal stromata (aPCS) as a carrier scaffold, and evaluate its biological functions in a dog model. To construct a TE-aHC, ntHCS cells were injected into an aPCS scaffold and cultured for 3 days; then, ntHCEP cells were inoculated onto the Bowman's membrane of the scaffold and cultured for 5 days under air-liquid interface condition...
June 16, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28618138/expansion-of-umbilical-cord-blood-aldehyde-dehydrogenase-expressing-cells-generates-myeloid-progenitor-cells-that-stimulate-limb-revascularization
#12
David M Putman, Tyler T Cooper, Stephen E Sherman, Ayesh K Seneviratne, Mark Hewitt, Gillian I Bell, David A Hess
Uncompromised by chronic disease-related comorbidities, human umbilical cord blood (UCB) progenitor cells with high aldehyde dehydrogenase activity (ALDH(hi) cells) stimulate blood vessel regeneration after intra-muscular transplantation. However, implementation of cellular therapies using UCB ALDH(hi) cells for critical limb ischemia, the most severe form of severe peripheral artery disease, is limited by the rarity (<0.5%) of these cells. Our goal was to generate a clinically-translatable, allogeneic cell population for vessel regenerative therapies, via ex vivo expansion of UCB ALDH(hi) cells without loss of pro-angiogenic potency...
June 15, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28574594/a-novel-protein-engineered-hepatocyte-growth-factor-analog-released-via-a-shear-thinning-injectable-hydrogel-enhances-post-infarction-ventricular-function
#13
Amanda N Steele, Lei Cai, Vi N Truong, Bryan B Edwards, Andrew B Goldstone, Anahita Eskandari, Aaron C Mitchell, Laura M Marquardt, Abbygail A Foster, Jennifer R Cochran, Sarah C Heilshorn, Y Joseph Woo
In the last decade, numerous growth factors and biomaterials have been explored for the treatment of myocardial infarction (MI). While pre-clinical studies have demonstrated promising results, clinical trials have been disappointing and inconsistent, likely due to poor translatability. In the present study, we investigate a potential myocardial regenerative therapy consisting of a protein-engineered dimeric fragment of hepatocyte growth factor (HGFdf) encapsulated in a shear-thinning, self-healing, bioengineered hydrogel (SHIELD)...
June 2, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28560782/benefit-of-cardiopoietic-mesenchymal-stem-cell-therapy-on-left-ventricular-remodelling-results-from-the-congestive-heart-failure-cardiopoietic-regenerative-therapy-chart-1-study
#14
John R Teerlink, Marco Metra, Gerasimos S Filippatos, Beth A Davison, Jozef Bartunek, Andre Terzic, Bernard J Gersh, Thomas J Povsic, Timothy D Henry, Bertrand Alexandre, Christian Homsy, Christopher Edwards, Aymeric Seron, William Wijns, Gad Cotter
AIMS: Left ventricular (LV) reverse remodelling is an important marker of improved outcomes in patients with advanced heart failure (HF). We examined the impact of the intramyocardial administration of bone-marrow-derived, lineage-directed, autologous cardiopoietic mesenchymal stem cells (C3BS-CQR-1) on LV remodelling in patients with advanced HF enrolled in the CHART-1 study. METHODS AND RESULTS: Patients (n=351) with symptomatic advanced HF secondary to ischaemic heart disease, and reduced LV ejection fraction (LVEF <35%) were randomized to receive C3BS-CQR-1 or a sham procedure...
May 31, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28543406/novel-murine-xenograft-model-for-the-evaluation-of-stem-cell-therapy-for-profound-dysphagia
#15
Maggie A Kuhn, Amanda B Black, M Tausif Siddiqui, Jan A Nolta, Peter C Belafsky
OBJECTIVES/HYPOTHESIS: Dysphagia is common and costly. Treatments are limited and innovative therapies are required. The tongue is essential for safe, effective swallowing and is a natural target for regenerative therapy. Muscle-derived stem cells (MDSCs) hold potential to restore dynamic function, and their application in the damaged tongue is appealing. We examined the safety and efficacy of human MDSC implantation into a novel mouse tongue model. STUDY DESIGN: Animal study...
May 23, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28532899/nanodiamond-based-injectable-hydrogel-for-sustained-growth-factor-release-preparation-characterization-and-in-vitro-analysis
#16
Settimio Pacelli, Francisca Acosta, Aparna R Chakravarti, Saheli G Samanta, Jonathan Whitlow, Saman Modaresi, Rafeeq P H Ahmed, Johnson Rajasingh, Arghya Paul
Nanodiamonds (NDs) represent an emerging class of carbon nanomaterials that possess favorable physical and chemical properties to be used as multifunctional carriers for a variety of bioactive molecules. Here we report the synthesis and characterization of a new injectable ND-based nanocomposite hydrogel which facilitates a controlled release of therapeutic molecules for regenerative applications. In particular, we have formulated a thermosensitive hydrogel using gelatin, chitosan and NDs that provides a sustained release of exogenous human vascular endothelial growth factor (VEGF) for wound healing applications...
May 19, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28502796/in-vivo-reprogramming-for-heart-regeneration-a-glance-at-efficiency-environmental-impacts-challenges-and-future-directions
#17
REVIEW
Behnam Ebrahimi
Replacing dying or diseased cells of a tissue with new ones that are converted from patient's own cells is an attractive strategy in regenerative medicine. In vivo reprogramming is a novel strategy that can circumvent the hurdles of autologous/allogeneic cell injection therapies. Interestingly, studies have demonstrated that direct injection of cardiac transcription factors or specific miRNAs into the infarct border zone of murine hearts following myocardial infarction converts resident cardiac fibroblasts into functional cardiomyocytes...
May 11, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28484944/prolotherapy-for-osteoarthritis-and-tendinopathy-a-descriptive-review
#18
REVIEW
David Rabago, Bobby Nourani
PURPOSE OF REVIEW: Osteoarthritis and overuse tendinopathy are common chronic conditions of high societal and patient burden. The precise etiology of pain and disability in both conditions is multifactorial and not well understood. Patients are often refractory to conservative therapy. The development of new therapeutic options in both conditions is a public health priority. Prolotherapy is an injection-based outpatient regenerative therapy for chronic musculoskeletal conditions, including osteoarthritis and tendinopathy...
June 2017: Current Rheumatology Reports
https://www.readbyqxmd.com/read/28471303/bone-marrow-derived-mesenchymal-stem-cells-as-autologous-therapy-in-dogs-with-naturally-occurring-intervertebral-disc-disease-feasibility-safety-and-preliminary-results
#19
Frank Steffen, Lucas Smolders, Anne Roentgen, Alessandro Bertolo, Jivko Stoyanov
The intradiscal application of mesenchymal stem cells (MSC) is considered a promising strategy for intervertebral disc (IVD) regeneration. Although many studies have been published, the feasibility and regenerative effects of intradiscal MSC application has not been evaluated in an animal model suffering from naturally occurring degenerative disc disease. Six German Shepherd Dogs suffering from naturally occurring degenerative IVD disease were included. Autologous MSC were isolated from bone marrow (iliac crest) and cultured for 3 weeks...
May 4, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28460880/transdifferentiation-and-reprogramming-overview-of-the-processes-their-similarities-and-differences
#20
REVIEW
Artur Cieślar-Pobuda, Viktoria Knoflach, Mikael V Ringh, Joachim Stark, Wirginia Likus, Krzysztof Siemianowicz, Saeid Ghavami, Andrzej Hudecki, Jason L Green, Marek J Łos
Reprogramming, or generation of induced pluripotent stem (iPS) cells (functionally similar to embryonic stem cells or ES cells) by the use of transcription factors (typically: Oct3/4, Sox2, c-Myc, Klf4) called "Yamanaka factors" (OSKM), has revolutionized regenerative medicine. However, factors used to induce stemness are also overexpressed in cancer. Both, ES cells and iPS cells cause teratoma formation when injected to tissues. This raises a safety concern for therapies based on iPS derivates. Transdifferentiation (lineage reprogramming, or -conversion), is a process in which one mature, specialized cell type changes into another without entering a pluripotent state...
April 28, 2017: Biochimica et Biophysica Acta
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