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Regenerative therapy

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https://www.readbyqxmd.com/read/28727999/drug-ion-co-delivery-multi-functional-nanocarrier-to-regenerate-infected-tissue-defect
#1
Jung-Hwan Lee, Ahmed El-Fiqi, Nandin Mandakhbayar, Hae-Hyoung Lee, Hae-Won Kim
Regeneration of infected tissues is a globally challenging issue in medicine and dentistry. Common clinical therapies involving a complete removal of infected areas together with a treatment of antimicrobial drugs are often suboptimal. Biomaterials with anti-bacterial and pro-regenerative potential can offer a solution to this. Here we design a novel nanocarrier based on a mesoporous silicate-calcium glass by doping with Ag ions and simultaneously loading antimicrobial drugs onto mesopores. The nanocarriers could controllably release multiple ions (silver, calcium, and silicate) and drugs (tetracycline or chlorohexidine) to levels therapeutically relevant, and effectively internalize to human dental stem cells (∼90%) with excellent viability, ultimately stimulating odontogenic differentiation...
July 12, 2017: Biomaterials
https://www.readbyqxmd.com/read/28727481/leucocyte-and-platelet-rich-fibrin-l-prf-as-a-regenerative-medicine-strategy-for-the-treatment-of-refractory-leg-ulcers-a-prospective-cohort-study
#2
Nelson R Pinto, Matias Ubilla, Yelka Zamora, Verónica Del Rio, David M Dohan Ehrenfest, Marc Quirynen
Chronic wounds (VLU: venous leg ulcer, DFU: diabetic foot ulcer, PU: pressure ulcer, or complex wounds) affect a significant proportion of the population. Despite appropriate standard wound care, such ulcers unfortunately may remain open for months or even years. The use of leukocyte- and platelet-rich fibrin (L-PRF) to cure skin ulcers is a simple and inexpensive method, widely used in some countries but unknown or neglected in most others. This auto-controlled prospective cohort study explored and quantified accurately for the first time the adjunctive benefits of topical applications of L-PRF in the management of such refractory ulcers in a diverse group of patients...
July 20, 2017: Platelets
https://www.readbyqxmd.com/read/28721749/preservation-and-stability-of-cell-therapy-products-recommendations-from-an-expert-workshop
#3
Glyn N Stacey, Che J Connon, Karen Coopman, Alan J Dickson, Barry Fuller, Charles J Hunt, Paul Kemp, Julie Kerby, Jennifer Man, Paul Matejtschuk, Harry Moore, John Morris, Richard Oc Oreffo, Nigel Slater, Stephen Ward, Claire Wiggins, Heiko Zimmermann
If the field of regenerative medicine is to deliver therapies, rapid expansion and delivery over considerable distances to large numbers of patients is needed. This will demand efficient stabilization and shipment of cell products. However, cryopreservation science is poorly understood by life-scientists in general and in recent decades only limited progress has been made in the technology of preservation and storage of cells. Rapid translation of new developments to a broader range of cell types will be vital, as will assuring a deeper knowledge of the fundamental cell biology relating to successful preservation and recovery of cell cultures...
July 19, 2017: Regenerative Medicine
https://www.readbyqxmd.com/read/28721683/mesenchymal-stem-progenitor-cells-derived-from-articular-cartilage-synovial-membrane-and-synovial-fluid-for-cartilage-regeneration-current-status-and-future-perspectives
#4
REVIEW
Yi-Zhou Huang, Hui-Qi Xie, Antonietta Silini, Ornella Parolini, Yi Zhang, Li Deng, Yong-Can Huang
Large articular cartilage defects remain an immense challenge in the field of regenerative medicine because of their poor intrinsic repair capacity. Currently, the available medical interventions can relieve clinical symptoms to some extent, but fail to repair the cartilaginous injuries with authentic hyaline cartilage. There has been a surge of interest in developing cell-based therapies, focused particularly on the use of mesenchymal stem/progenitor cells with or without scaffolds. Mesenchymal stem/progenitor cells are promising graft cells for tissue regeneration, but the most suitable source of cells for cartilage repair remains controversial...
July 18, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28719644/isolation-of-putative-stem-cells-present-in-human-adult-olfactory-mucosa
#5
Tamara Tanos, Alberto Maria Saibene, Carlotta Pipolo, Paolo Battaglia, Giovanni Felisati, Alicia Rubio
The olfactory mucosa (OM) has the unique characteristic of performing an almost continuous and lifelong neurogenesis in response to external injuries, due to the presence of olfactory stem cells that guarantee the maintenance of the olfactory function. The easy accessibility of the OM in humans makes these stem cells feasible candidates for the development of regenerative therapies. In this report we present a detailed characterization of a patient-derived OM, together with a description of cell cultures obtained from the OM...
2017: PloS One
https://www.readbyqxmd.com/read/28718680/development-of-emu-oil-loaded-pcl-collagen-bioactive-nanofibers-for-proliferation-and-stemness-preservation-of-human-adipose-derived-stem-cell-possible-application-in-regenerative-medicine
#6
Kazem Nejati-Koshki, Younes Pilehvar-Soltanahmadi, Effat Alizadeh, Abbas Ebrahimi-Kalan, Yousef Mortazavi, Nosratollah Zarghami
Adipose tissue-derived stem cells (ASCs) are promising candidate in stem cell therapies, and maintaining their stemness potential is vital to achieve effective treatment. Natural based scaffolds have been recently attracted increasing attention in nanomedicine and drug delivery. In the present study, a polymeric nanofibrous scaffold was developed based on the polycaprolactone/Collagen (PCL/Coll) containing Emu oil as a bioactive material to induce the proliferation of ASCs, while simultaneously preserve the stemness property of those cells...
July 18, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/28717879/comparison-of-the-effect-of-activated-or-non-activated-prp-in-various-concentrations-on-osteoblast-and-fibroblast-cell-line-proliferation
#7
Surena Vahabi, Zahra Yadegari, Hossein Mohammad-Rahimi
Platelet-rich plasma (PRP) contains growth factors which positively affect cell proliferation, cell differentiation, chemotaxis and intracellular matrix synthesis. All these processes are involved in wound healing and tissue regeneration; thus, PRP as a source of growth factors can be used in periodontal regenerative therapies. The purpose of the present study was to assess the effect of various concentrations of activated and non-activated PRP on proliferation of osteoblasts and fibroblasts in vitro. PRP was obtained from three healthy volunteers...
July 17, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28717411/skeletal-muscle-generated-from-induced-pluripotent-stem-cells-induction-and-application
#8
REVIEW
Yuko Miyagoe-Suzuki, Shin'ichi Takeda
Human induced pluripotent stem cells (hiPS cells or hiPSCs) can be derived from cells of patients with severe muscle disease. If skeletal muscle induced from patient-iPSCs shows disease-specific phenotypes, it can be useful for studying the disease pathogenesis and for drug development. On the other hand, human iPSCs from healthy donors or hereditary muscle disease-iPSCs whose genomes are edited to express normal protein are expected to be a cell source for cell therapy. Several protocols for the derivation of skeletal muscle from human iPSCs have been reported to allow the development of efficient treatments for devastating muscle diseases...
June 26, 2017: World Journal of Stem Cells
https://www.readbyqxmd.com/read/28717403/the-potential-role-of-adult-stem-cells-in-the-management-of-the-rheumatic-diseases
#9
REVIEW
Tiziana Franceschetti, Cosimo De Bari
Adult stem cells are considered as appealing therapeutic candidates for inflammatory and degenerative musculoskeletal diseases. A large body of preclinical research has contributed to describing their immune-modulating properties and regenerative potential. Additionally, increasing evidence suggests that stem cell differentiation and function are disrupted in the pathogenesis of rheumatic diseases. Clinical studies have been limited, for the most part, to the application of adult stem cell-based treatments on small numbers of patients or as a 'salvage' therapy in life-threatening disease cases...
July 2017: Therapeutic Advances in Musculoskeletal Disease
https://www.readbyqxmd.com/read/28715613/isolation-and-characterization-of-canine-placenta-derived-mesenchymal-stromal-cells-for-the-treatment-of-neurological-disorders-in-dogs
#10
Connor Long, Lee Lankford, Priyadarsini Kumar, Robert Grahn, Dori L Borjesson, Diana Farmer, Aijun Wang
Spinal cord injury (SCI) is a devastating disorder that affects humans and dogs. The prognosis of SCI depends on the severity of the injury and can include varying levels of motor and sensory deficits including devastating paraplegia and quadriplegia. Placental mesenchymal stromal cells (PMSCs) have been shown to improve wound healing and possess neuroprotective and immunomodulatory capabilities, but have not yet been clinically tested for the treatment of SCI. This study established a protocol to isolate fetal PMSCs from canine placentas and characterized their paracrine secretion profile and ability to stimulate neurons in vitro to assess their potential as a treatment option for neurological disorders in dogs...
July 17, 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/28714578/efficacy-and-initial-safety-profile-of-cxcl12-treatment-in-a-rodent-model-of-urinary-sphincter-deficiency
#11
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/28713637/regenerative-rehabilitation-an-innovative-and-multifactorial-approach-to-recovery-from-stroke-and-brain-injury
#12
Samantha M Portis, Paul R Sanberg
There is currently a dearth of treatment options for stroke or traumatic brain injury that can restore cognitive and motor function. Regenerative and translational medicine have ushered forth promising new methods for mediating recovery in the central nervous system, the most salient of which are rehabilitation and stem cell therapies that, when combined, result in more pronounced recovery than one approach alone.
2017: Cell Medicine
https://www.readbyqxmd.com/read/28711155/manufacturing-cell-therapies-using-engineered-biomaterials
#13
REVIEW
Amr A Abdeen, Krishanu Saha
Emerging manufacturing processes to generate regenerative advanced therapies can involve extensive genomic and/or epigenomic manipulation of autologous or allogeneic cells. These cell engineering processes need to be carefully controlled and standardized to maximize safety and efficacy in clinical trials. Engineered biomaterials with smart and tunable properties offer an intriguing tool to provide or deliver cues to retain stemness, direct differentiation, promote reprogramming, manipulate the genome, or select functional phenotypes...
July 12, 2017: Trends in Biotechnology
https://www.readbyqxmd.com/read/28710827/comparison-of-non-coding-rnas-in-exosomes-and-functional-efficacy-of-human-embryonic-stem-cell-versus-induced-pluripotent-stem-cell-derived-cardiomyocytes
#14
Won Hee Lee, Wenyi Chen, Ning-Yi Shao, Dan Xiao, Xulei Qin, Natalie Baker, Hye Ryeong Michelle Bae, Praveen Shukla, Haodi Wu, Kazuki Kodo, Sang-Ging Ong, Joseph C Wu
BACKGROUND: Both human embryonic stem cell-derived cardiomyocytes (ESC-CMs) and human induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs) can serve as unlimited cell sources for cardiac regenerative therapy. However, the functional equivalency between human ESC-CMs and iPSC-CMs for cardiac regenerative therapy has not been demonstrated. Here we performed a head-to-head comparison of ESC-CMs and iPSC-CMs in their ability to restore cardiac function in a rat myocardial infarction (MI) model as well as their exosomal secretome...
July 14, 2017: Stem Cells
https://www.readbyqxmd.com/read/28710815/lacrimal-gland-development-from-signaling-interactions-to-regenerative-medicine
#15
REVIEW
Ankur Garg, Xin Zhang
The lacrimal gland plays a pivotal role in keeping the ocular surface lubricated, and protecting it from environmental exposure and insult. Dysfunction of the lacrimal gland results in deficiency of the aqueous component of the tear film, which can cause dryness of the ocular surface, also known as the aqueous-deficient dry eye disease. Left untreated, this disease can lead to significant morbidity, including frequent eye infections, corneal ulcerations and vision loss. Current therapies do not treat the underlying deficiency of the lacrimal gland, but merely provide symptomatic relief...
July 14, 2017: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/28710530/proteomic-characterisation-reveals-active-wnt-signalling-by-human-multipotent-stromal-cells-as-a-key-regulator-of-beta-cell-survival-and-proliferation
#16
Miljan Kuljanin, Gillian I Bell, Stephen E Sherman, Gilles A Lajoie, David A Hess
AIMS/HYPOTHESIS: Novel strategies to stimulate the expansion of beta cell mass in situ are warranted for diabetes therapy. The aim of this study was to elucidate the secretome of human bone marrow (BM)-derived multipotent stromal cells (MSCs) with documented islet regenerative paracrine function. We hypothesised that regenerative MSCs will secrete a unique combination of protein factors that augment islet regeneration. METHODS: Human BM-derived MSCs were examined for glucose-lowering capacity after transplantation into streptozotocin-treated NOD/severe combined immunodeficiency (SCID) mice and segregated into samples with regenerative (MSC(R)) vs nonregenerative (MSC(NR)) capacity...
July 14, 2017: Diabetologia
https://www.readbyqxmd.com/read/28707770/comparison-of-the-paracrine-activity-of-mesenchymal-stem-cells-derived-from-human-umbilical-cord-amniotic-membrane-and-adipose-tissue
#17
Filip A Dabrowski, Anna Burdzinska, Agnieszka Kulesza, Anna Sladowska, Aleksandra Zolocinska, Kamila Gala, Leszek Paczek, Miroslaw Wielgos
AIM: The study was conducted to investigate secretory activity and define the paracrine potential of mesenchymal stem cells from human umbilical cord and amniotic membrane (UC-MSCs and AM-MSCs, respectively). METHODS: UC-MSCs (n = 6) were obtained from tissue explants using an adherent method after two weeks of incubation. AM-MSCs (n = 6) were obtained by digestion with tripsin and collagenase. MSC phenotype was confirmed in vitro by performing flow cytometry, differentiation assays and vimentin staining...
July 14, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28705606/regenerative-approaches-for-cartilage-repair-in-the-treatment-of-osteoarthritis
#18
REVIEW
Meihan Li, Rong Xiao, Jing B Li, Qing Zhu
Osteoarthritis (OA) as a debilitating affliction of joints currently affects millions of people and remains an unsolved problem. The disease involves multiple cellular and molecular pathways that converge on the progressive destruction of cartilage. Activation of cartilage regenerative potential and specific targeting pathogenic mediators have been the major focus of research efforts aimed at slowing the progression of cartilage degeneration and preserve joint function. This review will summarize recent key discoveries toward better understanding of the complex mechanisms behind OA development and highlight the latest advances in basic and clinical research in the approach for cartilage regeneration...
July 10, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28705238/interleukin-3-enhances-the-migration-of-human-mesenchymal-stem-cells-by-regulating-expression-of-cxcr4
#19
Amruta Barhanpurkar-Naik, Suhas T Mhaske, Satish T Pote, Kanupriya Singh, Mohan R Wani
BACKGROUND: Mesenchymal stem cells (MSCs) represent an important source for cell therapy in regenerative medicine. MSCs have shown promising results for repair of damaged tissues in various degenerative diseases in animal models and also in human clinical trials. However, little is known about the factors that could enhance the migration and tissue-specific engraftment of exogenously infused MSCs for successful regenerative cell therapy. Previously, we have reported that interleukin-3 (IL-3) prevents bone and cartilage damage in animal models of rheumatoid arthritis and osteoarthritis...
July 14, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28705162/the-effect-of-autologous-adipose-derived-mesenchymal-stem-cell-therapy-in-the-treatment-of-a-large-osteochondral-defect-of-the-knee-following-unsuccessful-surgical-intervention-of-osteochondritis-dissecans-a-case-study
#20
Julien Freitag, Kiran Shah, James Wickham, Richard Boyd, Abi Tenen
BACKGROUND: A prospective analysis of the effect of autologous adipose derived mesenchymal stem cell (MSC) therapy in the treatment of an osteochondral defect of the knee with early progressive osteoarthritis following unsuccessful surgical intervention of osteochondritis dissecans (OCD). CASE PRESENTATION: After failed conventional management of OCD a patient undergoes intra-articular MSC therapy. Patient outcome measures included the Numeric Pain Rating Scale (NPRS), the Western Ontario and McMaster Universities Arthritis Index (WOMAC) and the Knee Injury and Osteoarthritis Outcome Score (KOOS)...
July 14, 2017: BMC Musculoskeletal Disorders
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