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High transplant cell loss is a major barrier to translation of stem cell therapy for pathologies of the brain and spinal cord. Encapsulated delivery of stem cells in biomaterials for cell therapy is gaining popularity but experimental research has overwhelmingly used laboratory grade materials unsuitable for human clinical use - representing a further barrier to clinical translation. A potential solution is to use neurosurgical grade materials routinely used in clinical protocols which have an established human safety profile. Here, we tested the ability of Duragen Plus™ - a clinical biomaterial used widely in neurosurgical duraplasty procedures, to support the growth and differentiation of neural stem cells- a major transplant population being tested in clinical trials for neurological pathology. Genetic engineering of stem cells yields augmented therapeutic cells, so we further tested the ability of the Duragen Plus™ matrix to support stem cells engineered using magnetofection technology and minicircle DNA vectors- a promising cell engineering approach we previously reported (Journal of Controlled Release, 2016 a &b). The safety of the nano-engineering approach was analysed for the first time using sophisticated data-independent analysis by mass spectrometry-based proteomics. We prove that the Duragen Plus™ matrix is a promising biomaterial for delivery of stem cell transplant populations, with no adverse effects on key regenerative parameters. This advanced cellular construct based on a combinatorial nano-engineering and biomaterial encapsulation approach, could therefore offer key advantages for clinical translation.
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http://dx.doi.org/10.1016/j.jconrel.2020.02.028 | DOI Listing |
J Nanobiotechnology
December 2024
School of Life and Environmental Sciences, Shaoxing University, Shaoxing, 312000, Zhejiang, China.
Anthracycline doxorubicin (DOX) remains the first-line chemotherapeutic drug for the efficient treatment of breast cancer, but its severe cardiotoxicity limits its long-term application in clinical tumor chemotherapy. Until now, the pathogenesis mechanism of DOX-induced cardiotoxicity (DIC) is still not fully understood. According to current studies, the oxidative stress caused by the imbalance of reactive oxygen species (ROS) and reactive nitrogen species (RNS) production and mitochondrial dysfunction in myocardial cells are closely related to DIC.
View Article and Find Full Text PDFCell Mol Biol Lett
December 2024
Jiangsu Institute of Clinical Immunology, The First Affiliated Hospital of Soochow University, 178 East Ganjiang Road, Suzhou, 215000, China.
Gastric cancer (GC) represents a prevalent malignancy globally, often diagnosed at advanced stages owing to subtle early symptoms, resulting in a poor prognosis. Exosomes are extracellular nano-sized vesicles and are secreted by various cells. Mounting evidence indicates that exosomes contain a wide range of molecules, such as DNA, RNA, lipids, and proteins, and play crucial roles in multiple cancers including GC.
View Article and Find Full Text PDFJ Nanobiotechnology
December 2024
Cancer Stem Cells and Fibroinflammatory Microenvironment Group, Instituto de Investigaciones Biomédicas (IIBm) Sols-Morreale CSIC-UAM, 28029, Madrid, Spain.
Background: Pancreatic ductal adenocarcinoma (PDAC) requires innovative therapeutic strategies to counteract its progression and metastatic potential. Since the majority of patients are diagnosed with advanced metastatic disease, treatment strategies targeting not only the primary tumor but also metastatic lesions are needed. Tumor-Associated Macrophages (TAMs) have emerged as central players, significantly influencing PDAC progression and metastasis.
View Article and Find Full Text PDFBMC Complement Med Ther
December 2024
School of Acupuncture and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
Background: Amphetamine-type stimulant (ATS) abuse is strongly associated with an elevated risk of HIV infection and transmission. Antiretroviral therapy (ART) serves as the primary approach for managing HIV infection and AIDS progression. However, ATS abuse diminishes the efficacy of ART in HIV/AIDS patients, amplifying the vulnerability to immunological non-response (INR) and ultimately increasing the incidence rate and mortality of opportunistic infections.
View Article and Find Full Text PDFBMC Cancer
December 2024
Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, 150000, China.
Background: The therapeutic efficacy and prognosis of various tumors can be assessed using the systemic immune-inflammatory index (SII) and prognostic nutritional index (PNI). Despite their potential, no studies have investigated the prognostic value of the combined SII-PNI score for outcomes in patients with extensive small cell lung cancer (ES-SCLC) treated with chemotherapy and immune checkpoint inhibitors (ICIs).
Materials And Methods: Our study retrospectively examined 213 ES-SCLC patients treated with chemotherapy and ICIs across two institutions.
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