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Cytotherapy

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https://www.readbyqxmd.com/read/29331266/human-papilloma-virus-specific-t-cells-can-be-generated-from-na%C3%A3-ve-t-cells-for-use-as-an-immunotherapeutic-strategy-for-immunocompromised-patients
#1
Sarah E McCormack, Conrad Russell Y Cruz, Kaylor E Wright, Allison B Powell, Haili Lang, Cornelia Trimble, Michael D Keller, Ephraim Fuchs, Catherine M Bollard
Human papilloma virus (HPV) is a known cause of cervical cancer, squamous cell carcinoma and laryngeal cancer. Although treatments exist for HPV-associated malignancies, patients unresponsive to these therapies have a poor prognosis. Recent findings from vaccine studies suggest that T-cell immunity is essential for disease control. Because Epstein-Barr Virus (EBV)-specific T cells have been highly successful in treating or preventing EBV-associated tumors, we hypothesized that the development of a manufacturing platform for HPV-specific T cells from healthy donors could be used in a third-party setting to treat patients with high-risk/relapsed HPV-associated cancers...
January 10, 2018: Cytotherapy
https://www.readbyqxmd.com/read/29306567/platelet-rich-plasma-derived-scaffolds-increase-the-benefit-of-delayed-mesenchymal-stromal-cell-therapy-after-severe-traumatic-brain-injury
#2
Celia Bonilla Horcajo, Mercedes Zurita Castillo, Jesús Vaquero Crespo
BACKGROUND: Cell therapy using mesenchymal stromal cells (MSCs) offers new perspectives in the treatment of traumatic brain injury (TBI). The aim of the present study was to assess the impact of platelet-rich plasma scaffolds (PRPS) as support of MSCs in a delayed phase after severe TBI in rats. METHODS: TBI was produced by weight-drop impact to the right cerebral hemisphere. Two months after TBI, four experimental groups were established; saline, PRPS, MSCs in saline, or MSCs in PRPS was transplanted into the area of brain lesion through a small hole...
January 3, 2018: Cytotherapy
https://www.readbyqxmd.com/read/29306566/bispecific-chimeric-antigen-receptors-targeting-the-cd4-binding-site-and-high-mannose-glycans-of-gp120-optimized-for-anti-human-immunodeficiency-virus-potency-and-breadth-with-minimal-immunogenicity
#3
Mustafa H Ghanem, Sara Bolivar-Wagers, Barna Dey, Agnes Hajduczki, Diego A Vargas-Inchaustegui, David T Danielson, Virgilio Bundoc, Li Liu, Edward A Berger
BACKGROUND AIMS: Chimeric antigen receptors (CARs) offer great potential toward a functional cure of human immunodeficiency virus (HIV) infection. To achieve the necessary long-term virus suppression, we believe that CARs must be designed for optimal potency and anti-HIV specificity, and also for minimal probability of virus escape and CAR immunogenicity. CARs containing antibody-based motifs are problematic in the latter regard due to epitope mutation and anti-idiotypic immune responses against the variable regions...
January 3, 2018: Cytotherapy
https://www.readbyqxmd.com/read/29291917/phenotypic-and-functional-characterization-of-mesenchymal-stromal-cells-isolated-from-pediatric-patients-with-severe-idiopathic-nephrotic-syndrome
#4
Nadia Starc, Min Li, Mattia Algeri, Antonella Conforti, Luigi Tomao, Angela Pitisci, Francesco Emma, Giovanni Montini, Piergiorgio Messa, Franco Locatelli, Maria Ester Bernardo, Marina Vivarelli
BACKGROUND: Idiopathic nephrotic syndrome (INS) is one of the most common renal diseases in the pediatric population; considering the role of the immune system in its pathogenesis, corticosteroids are used as first-line immunosuppressive treatment. Due to its chronic nature and tendency to relapse, a significant proportion of children experience co-morbidity due to prolonged exposure to corticosteroids and concomitant immunosuppression with second-line, steroid-sparing agents. Mesenchymal stromal cells (MSCs) are multipotent cells that represent a key component of the bone marrow (BM) microenvironment; given their unique immunoregulatory properties, their clinical use may be exploited as an alternative therapeutic approach in INS treatment...
December 29, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29289444/mineralization-by-mesenchymal-stromal-cells-is-variously-modulated-depending-on-commercial-platelet-lysate-preparations
#5
Federica Boraldi, Jorge S Burns, Angelica Bartolomeo, Massimo Dominici, Daniela Quaglino
BACKGROUND AIMS: Numerous cellular models have been developed to investigate calcification for regenerative medicine applications and for the identification of therapeutic targets in various complications associated with age-related diseases. However, results have often been contradictory due to specific culture conditions, cell type ontogeny and aging status. Human platelet lysate (hPL) has been recently investigated as valuable alternative to fetal bovine serum (FBS) in cell culture and bone regeneration...
December 27, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29287970/closed-system-manufacturing-of-cd19-and-dual-targeted-cd20-19-chimeric-antigen-receptor-t-cells-using-the-clinimacs-prodigy-device-at-an-academic-medical-center
#6
Fenlu Zhu, Nirav Shah, Huiqing Xu, Dina Schneider, Rimas Orentas, Boro Dropulic, Parameswaran Hari, Carolyn A Keever-Taylor
BACKGROUND AIMS: Multiple steps are required to produce chimeric antigen receptor (CAR)-T cells, involving subset enrichment or depletion, activation, gene transduction and expansion. Open processing steps that increase risk of contamination and production failure are required. This complex process requires skilled personnel and costly clean-room facilities and infrastructure. Simplified, reproducible CAR-T-cell manufacturing with reduced labor intensity within a closed-system is highly desirable for increased availability for patients...
December 26, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29269240/exosomes-from-mesenchymal-stromal-cells-enhance-imatinib-induced-apoptosis-in-human-leukemia-cells-via-activation-of-caspase-signaling-pathway
#7
Ying Liu, Baoquan Song, Yimeng Wei, Fang Chen, Ying Chi, Huifang Fan, Na Liu, Zongjin Li, Zhongchao Han, Fengxia Ma
BACKGROUND AIMS: Imatinib (IM), a tyrosine kinase inhibitor targeting the BCR-ABL oncoprotein, remains a major therapeutic strategy for patients with chronic myelogenous leukemia (CML). However, IM resistance is still a challenge in the treatment of CML. Recently, it was reported that exosomes (Exo) were involved in drug resistance. Therefore, the present study investigated whether Exo secreted by human umbilical cord mesenchymal stromal cells (hUC-MSC-Exo) affected the sensitivity of K562 cells to IM...
December 18, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29254764/cell-sheets-in-cell-therapies
#8
REVIEW
Giles T S Kirby, Andrew Michelmore, Louise E Smith, Jason D Whittle, Robert D Short
This review aims to provide a broad introduction to the use of cell sheets and the role of materials in the delivery of cell sheets to patients within a clinical setting. Traditionally, cells sheets have been, and currently are, fabricated using established and accepted cell culture methods within standard formats (e.g., petri dishes) utilizing biological substrates. Synthetic surfaces provide a far more versatile system for culturing and delivering cell sheets. This has the potential to positively affect quality, and efficient, localized cell delivery has a significant impact on patient outcome and on the overall cost of goods...
December 15, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29254763/bone-marrow-derived-mesenchymal-stem-cells-ameliorate-parotid-injury-in-ovariectomized-rats
#9
Manal R Abd El-Haleem, Assmaa O Selim, Ghalia M Attia
BACKGROUND AIMS: Parotid hypofunction causes life-disrupting effects, and there are no effective medications for xerostomia. We hypothesized that mesenchymal stem cells (MSCs) have repairing effects on parotid glands of ovariectomized (OVX) rats. METHODS: Forty-five adult female rats were divided into three equal groups: group I (Control group), group II (OVX-group) and group III (OVX rats that received MSCs at 4 and 8 weeks post-ovariectomy). At 12 weeks post-ovariectomy, histological (Masson's trichrome and periodic acid-Schiff with alcian blue stains), immunohistochemical (caspase-3 and CD44) and morphometric studies and salivary flow rate and saliva pH determination were carried out...
December 15, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29246649/utility-of-routine-evaluation-of-sterility-of-cellular-therapy-products-with-or-without-extensive-manipulation-best-practices-and-clinical-significance
#10
Josee Golay, Olga Pedrini, Chiara Capelli, Elisa Gotti, Gianmaria Borleri, Mara Magri, Francesca Vailati, Marco Passera, Claudio Farina, Alessandro Rambaldi, Martino Introna
BACKGROUND: We analyzed the results of routine sterility testing performed in our center over the last 10 years, in the context both hematopoietic stem cell transplantation (HSCT) and Advanced Therapeutic Medicinal Products (ATMPs). METHODS: For sterility tests 14-day cultures were performed in culture media detecting aerobic and anaerobic microorganisms. RESULTS: In this study, 22/1643 (1.3%) of apheretic products for autologous or allogeneic HSCT were contaminated, whereas 14/73 bone marrow (BM) harvests (17...
December 12, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29246648/human-mesenchymal-stromal-cell-therapy-for-damaged-cochlea-repair-in-nod-scid-mice-deafened-with-kanamycin
#11
Simone Bettini, Valeria Franceschini, Laura Astolfi, Edi Simoni, Benedetta Mazzanti, Alessandro Martini, Roberto P Revoltella
BACKGROUND: Kanamycin, mainly used in the treatment of drug-resistant-tuberculosis, is known to cause irreversible hearing loss. Using the xeno-transplant model, we compared both in vitro and in vivo characteristics of human mesenchymal stromal cells (MSCs) derived from adult tissues, bone marrow (BM-MSCs) and adipose tissue (ADSCs). These tissues were selected for their availability, in vitro multipotency and regenerative potential in vivo in kanamycin-deafened nod-scid mice. METHODS: MSCs were isolated from informed donors and expanded ex vivo...
December 12, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29223535/corrigendum-to-a-consensus-introduction-to-serum-replacements-and-serum-free-media-for-cellular-therapies-cytotherapy-19-2017-155-169
#12
Ohad Karnieli, Oryan Makler Friedner, Julie G Allickson, Nan Zhang, Sunghoon Jung, David Fiorentini, Eytan Abraham, Shannon S Eaker, Tan Kah Yong, Allan Chan, Sarah Griffiths, Amy K Wehn, Steve Oh, Ohad Karnieli
No abstract text is available yet for this article.
December 6, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29223534/systemic-recovery-and-therapeutic-effects-of-transplanted-allogenic-and-xenogenic-mesenchymal-stromal-cells-in-a-rat-blunt-chest-trauma-model
#13
Elisa Maria Amann, Markus Thomas Rojewski, Sinja Rodi, Daniel Fürst, Jörg Fiedler, Annette Palmer, Sonja Braumüller, Markus Huber-Lang, Hubert Schrezenmeier, Rolf Erwin Brenner
BACKGROUND: Effective therapy of Acute Lung Injury (ALI) is still a major scientific and clinical problem. To define novel therapeutic strategies for sequelae of blunt chest trauma (TxT) like ALI/Acute Respiratory Distress Syndrome, we have investigated the immunomodulatory and regenerative effects of a single dose of ex vivo expanded human or rat mesenchymal stromal cells (hMSCs/rMSCs) with or without priming, immediately after the induction of TxT in Wistar rats. METHODS: We analyzed the histological score of lung injury, the cell count of the broncho alveolar lavage fluid (BAL), the change in local and systemic cytokine level and the recovery of the administered cells 24 h and 5 days post trauma...
December 6, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29239793/medical-societies-patient-education-initiatives-public-debate-and-marketing-of-unproven-stem-cell-interventions
#14
Daniel J Weiss, Leigh Turner, Aaron D Levine, Laertis Ikonomou
Businesses marketing unproven stem cell interventions proliferate within the U.S. and in the larger global marketplace. There have been global efforts by scientists, patient advocacy groups, bioethicists, and public policy experts to counteract the uncontrolled and premature commercialization of stem cell interventions. In this commentary, we posit that medical societies and associations of health care professionals have a particular responsibility to be an active partner in such efforts. We review the role medical societies can and should play in this area through patient advocacy and awareness initiatives...
November 24, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29167063/intramuscular-administration-potentiates-extended-dwell-time-of-mesenchymal-stromal-cells-compared-to-other-routes
#15
Lorena R Braid, Catherine A Wood, Danielle M Wiese, Barry N Ford
BACKGROUND: Mesenchymal stromal cells (MSCs) offer great potential for diverse clinical applications. However, conventional systemic infusion of MSCs limits their therapeutic benefit, since intravenously (IV) infused cells become entrapped in the lungs where their dwell time is short. METHODS: To explore possible alternatives to IV infusion, we used in vivo optical imaging to track the bio-distribution and survival of 1 million bioluminescent MSCs administered IV, intraperitoneally (IP), subcutaneously (SC) and intramuscularly (IM) in healthy athymic mice...
November 19, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29150086/the-ex-vivo-toll-like-receptor-7-tolerance-induction-in-donor-lymphocytes-prevents-murine-acute-graft-versus-host-disease
#16
Nikolaos Zogas, Garyfalia Karponi, Fotios Iordanidis, Stylianos Malasidis, Vasilios Paraskevas, Anastasia Papadopoulou, Zaharias George Scouras, Achilles Anagnostopoulos, Evangelia Yannaki
BACKGROUND AIMS: Acute graft-versus-host disease (aGVHD) remains a major cause of morbidity and mortality after allogeneic hematopoietic stem cell transplantation, mediated by alloreactive donor T cells. Toll-like receptors (TLRs), a family of conserved pattern-recognition receptors (PRRs), represent key players in donors' T-cell activation during aGVHD; however, a regulatory, tolerogenic role for certain TLRs has been recognized in a different context. We investigated whether the ex vivo-induced TLR-2,-4,-7 tolerance in donor cells could prevent alloreactivity in a mismatched transplantation model...
November 14, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29122516/placenta-derived-plx-pad-mesenchymal-like-stromal-cells-are-efficacious-in-rescuing-blood-flow-in-hind-limb-ischemia-mouse-model-by-a-dose-and-site-dependent-mechanism-of-action
#17
Efrat Zahavi-Goldstein, Michal Blumenfeld, Dana Fuchs-Telem, Lena Pinzur, Shy Rubin, Zami Aberman, Noa Sher, Racheli Ofir
BACKGROUND: In peripheral artery disease (PAD), blockage of the blood supply to the limbs, most frequently the legs, leads to impaired blood flow and tissue ischemia. Pluristem's PLX-PAD cells are placenta-derived mesenchymal stromal-like cells currently in clinical trials for the treatment of peripheral artery diseases. METHODS: In this work, the hind limb ischemia (HLI) mouse model was utilized to study the efficacy and mechanism of action of PLX-PAD cells. ELISA assays were performed to characterize and quantitate PLX-PAD secretions in vitro...
November 6, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29111380/hypoxia-inducible-factor-1%C3%AE-may-regulate-the-commitment-of-mesenchymal-stromal-cells-toward-angio-osteogenesis-by-mirna-675-5p
#18
Viviana Costa, Lavinia Raimondi, Alice Conigliaro, Francesca Salamanna, Valeria Carina, Angela De Luca, Daniele Bellavia, Riccardo Alessandro, Milena Fini, Gianluca Giavaresi
BACKGROUND AIMS: During bone formation, angiogenesis and osteogenesis are regulated by hypoxia, which is able to induce blood vessel formation, as well as recruit and differentiate human mesenchymal stromal cells (hMSCs). The molecular mechanisms involved in HIF-1α response and hMSC differentiation during bone formation are still unclear. This study aimed to investigate the synergistic role of hypoxia and hypoxia-mimetic microRNA miR-675-5p in angiogenesis response and osteo-chondroblast commitment of hMSCs...
October 27, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29107739/comparative-restoration-of-acute-liver-failure-by-menstrual-blood-stem-cells-compared-with-bone-marrow-stem-cells-in-mice-model
#19
Mina Fathi-Kazerooni, Gholamreza Tavoosidana, Masoud Taghizadeh-Jahed, Sayeh Khanjani, Hananeh Golshahi, Caroline E Gargett, Haleh Edalatkhah, Somaieh Kazemnejad
BACKGROUND AIMS: The application of menstrual blood stem cells (MenSCs) in regenerative medicine is gaining increasing attention. The aim of this study was to investigate the therapeutic potential of MenSCs compared with bone marrow-derived stem cells (BMSCs) in an animal model of CCl4-induced acute hepatic failure. METHODS: Injured Balb/C mice were divided into multiple groups and received MenSCs, BMSCs or hepatocyte progenitor-like (HPL) cells derived from these cells...
October 26, 2017: Cytotherapy
https://www.readbyqxmd.com/read/29107738/extracellular-vesicles-released-from-mesenchymal-stromal-cells-stimulate-bone-growth-in-osteogenesis-imperfecta
#20
Satoru Otsuru, Laura Desbourdes, Adam J Guess, Ted J Hofmann, Theresa Relation, Takashi Kaito, Massimo Dominici, Masahiro Iwamoto, Edwin M Horwitz
BACKGROUND: Systemic infusion of mesenchymal stromal cells (MSCs) has been shown to induce acute acceleration of growth velocity in children with osteogenesis imperfecta (OI) despite minimal engraftment of infused MSCs in bones. Using an animal model of OI we have previously shown that MSC infusion stimulates chondrocyte proliferation in the growth plate and that this enhanced proliferation is also observed with infusion of MSC conditioned medium in lieu of MSCs, suggesting that bone growth is due to trophic effects of MSCs...
October 26, 2017: Cytotherapy
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