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https://www.readbyqxmd.com/read/29673884/peroxiredoxin-1-promoted-tumor-metastasis-and-angiogenesis-in-colorectal-cancer
#1
Huan-Xi Li, Xiang-Yu Sun, Shi-Ming Yang, Qing Wang, Zhen-Yu Wang
Peroxiredoxin1 (Prdx1) is a member of the PrdxS family, and it regulates cellular signaling and differentiation. The role of Prdx1in colorectal cancer (CRC) remains unclear. In this study, we investigated the relevance of Prdx1 in the metastasis and angiogenesis of CRC. The expression of Prdx1 in 60 cases human CRC tissues was detected through immunohistochemistry. The tumors that highly expressed Prdx1 (42/60) exhibited higher tumor grade and lymph node metastasis than those with low expression of Prdx1 (18/60) (p < 0...
April 3, 2018: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29670368/downregulation-of-mir-542-3p-promotes-cancer-metastasis-through-activating-tgf-%C3%AE-smad-signaling-in-hepatocellular-carcinoma
#2
Tong Zhang, Wei Liu, Wei Meng, Hui Zhao, Qing Yang, Shi-Jie Gu, Cui-Cui Xiao, Chang-Chang Jia, Bin-Sheng Fu
Introduction: Hepatocellular carcinoma (HCC) accounts for more than 90% of primary liver cancer. Although great progress has been made on HCC molecular mechanism and therapy techniques, the prognosis of HCC patient is poor due to high metastasis and recurrence. Materials and methods: Expression of miR-542-3p was quantified by quantitative real-time PCR (qRT-PCR). The role of miR-542-3p in HCC metastasis was examined using transwell and 3D-culture assay. qRT-PCR, Western blotting and luciferase reporter assay were used to elucidate the mechanisms of miR-542-3p-mediated cancer metastasis...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29668079/co-culture-of-adipose-derived-stem-cells-and-chondrocytes-on-three-dimensionally-printed-bioscaffolds-for-craniofacial-cartilage-engineering
#3
Robert J Morrison, Hassan B Nasser, Khaled N Kashlan, David A Zopf, Derek J Milner, Colleen L Flanangan, Matthew B Wheeler, Glenn E Green, Scott J Hollister
OBJECTIVES/HYPOTHESIS: Reconstruction of craniofacial cartilagenous defects are among the most challenging surgical procedures in facial plastic surgery. Bioengineered craniofacial cartilage holds immense potential to surpass current reconstructive options, but limitations to clinical translation exist. We endeavored to determine the viability of utilizing adipose-derived stem cell-chondrocyte co-culture and three-dimensional (3D) printing to produce 3D bioscaffolds for cartilage tissue engineering...
April 18, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29667532/human-osteoblast-derived-extracellular-matrix-with-high-homology-to-bone-proteome-is-osteopromotive
#4
Marta Baroncelli, Bram C J van der Eerden, Siddharth Chatterji, Enrique Rull Trinidad, Yik Y Kan, Marijke Koedam, Ingmar A J van Hengel, Rodrigo D A M Alves, Lidy E Fratila-Apachitei, Jeroen A A Demmers, Jeroen van de Peppel, Johannes Ptm van Leeuwen
Efficient osteogenic differentiation of mesenchymal stem cells (MSCs) is crucial to accelerate bone formation. In this context, the use of extracellular matrix (ECM) as natural 3D-framework mimicking in vivo tissue architecture is of interest. The aim of this study was to generate a devitalized human osteogenic MSC-derived ECM and to investigate its impact on MSC osteogenic differentiation to improve MSC properties in bone regeneration. The devitalized ECM significantly enhanced MSC adhesion and proliferation...
April 18, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29665002/three-dimensional-collagenous-niche-and-azacytidine-selectively-promote-time-dependent-cardiomyogenesis-from-human-bone-marrow-derived-msc-spheroids
#5
Jyotsna Joshi, Gautam Mahajan, Chandrasekhar R Kothapalli
Endogenous adult cardiac regenerative machinery is not capable of replacing the lost cells following myocardial infarction, often leading to permanent alterations in structure-function-mechanical properties. Regenerative therapies based on delivering autologous stem cells within an appropriate 3D milieu could meet such demand, by enabling homing and directed differentiation of the transplanted cells into lost specialized cell populations. Since type I collagen is the predominant cardiac tissue matrix protein, we here optimized the 3D niche which could promote time-dependent evolution of cardiomyogenesis from human bone marrow-derived mesenchymal stem cells (BM-MSC)...
April 17, 2018: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/29662620/promotion-of-malignant-phenotype-after-disruption-of-the-three-dimensional-structure-of-cultured-spheroids-from-colorectal-cancer
#6
Jose M Piulats, Jumpei Kondo, Hiroko Endo, Hiromasa Ono, Takeshi Hagihara, Hiroaki Okuyama, Yasuko Nishizawa, Yasuhiko Tomita, Masayuki Ohue, Kouki Okita, Hidejiro Oyama, Hidemasa Bono, Takashi Masuko, Masahiro Inoue
Individual and small clusters of cancer cells may detach from the edges of a main tumor and invade vessels, which can act as the origin of metastasis; however, the mechanism for this phenomenon is not well understood. Using cancer tissue-originated spheroids, we studied whether disturbing the 3D architecture of cancer spheroids can provoke the reformation process and progression of malignancy. We developed a mechanical disruption method to achieve homogenous disruption of the spheroids while maintaining cell-cell contact...
March 23, 2018: Oncotarget
https://www.readbyqxmd.com/read/29653286/stromal-cell-laden-3d-hydrogel-microwell-arrays-as-tumor-microenvironment-model-for-studying-stiffness-dependent-stromal-cell-cancer-interactions
#7
Xiaoshan Yue, Trung Dung Nguyen, Victoria Zellmer, Siyuan Zhang, Pinar Zorlutuna
Tumor properties such as growth and metastasis are dramatically dependent on the tumor microenvironment (TME). However, the diversity of the TME including the stiffness and the composition of the extracellular matrix (ECM), as well as the involvement of stromal cells, makes it extremely difficult to establish proper in vitro models for studying tumor growth and metastasis. In this research, we fabricated a stromal cell-laden microwell array system with tunable stiffness ranging from 200 Pa up to 3 kPa, which covers the stiffness range of normal and cancerous mammary tissues, to study the effect of ECM stiffness on stromal-cancer interaction...
April 3, 2018: Biomaterials
https://www.readbyqxmd.com/read/29652604/an-engineered-human-adipose-collagen-model-for-in-vitro-breast-cancer-cell-migration-studies
#8
Robert David Hume, Lorraine Berry, Stefanie Reichelt, Michael D'Angelo, Jenny Gomm, Ruth Elizabeth Cameron, Christine Watson
Adipocytes are one of the major stromal cell components of the human breast. These cells play a key role in the development of the gland and are implicated in breast tumorigenesis. Frequently, directional stromal collagen I fibres are found surrounding aggressive breast tumours. These fibres enhance breast cancer cell migration and are associated with poor patient prognosis. We sought to recapitulate these stromal components in vitro to provide a 3D model comprising human adipose tissue and anisotropic collagen fibres...
March 8, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29652594/tissue-engineering-and-regenerative-medicine-2017-a-year-in-review
#9
Kyung Min Park, Young Min Shin, Kyobum Kim, Heungsoo Shin
In 2017, a new paradigm change caused by artificial intelligence and big data analysis resulted in innovation in each field of science and technology, and also significantly influenced progress in tissue engineering and regenerative medicine (TERM). TERM has continued to make technological advances based on interdisciplinary approaches and has contributed to the overall field of biomedical technology including cancer biology, personalized medicine, development biology, and cell-based therapeutics. While researchers are aware that there is still a long way to go until TERM reaches the ultimate goal of patient treatment through clinical translation, the rapid progress in convergence studies led by technological improvements in TERM has been encouraging...
March 13, 2018: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/29652075/impact-of-tgf-%C3%AE-family-related-growth-factors-on-chondrogenic-differentiation-of-adipose-derived-stem-cells-isolated-from-lipoaspirates-and-infrapatellar-fat-pads-of-osteoarthritic-patients
#10
E López-Ruiz, G Jiménez, W Kwiatkowski, E Montañez, F Arrebola, E Carrillo, S Choe, J A Marchal, M Perán
The success of cell-based approaches for the treatment of cartilage defects requires an optimal autologous cell source with chondrogenic differentiation ability that maintains its differentiated properties and stability following implantation. The objective of this study was to compare the chondrogenic capacity of mesenchymal stem cells (MSCs) isolated from lipoaspirates (ASCs) and the infrapatellar fat pad (IFPSCs) of osteoarthritic patients and treated with transforming growth factor (TGF)-β family-related growth factors...
April 13, 2018: European Cells & Materials
https://www.readbyqxmd.com/read/29650255/glucocorticoid-loaded-liposomes-induce-a-pro-resolution-phenotype-in-human-primary-macrophages-to-support-chronic-wound-healing
#11
Anne Gauthier, Andreas Fisch, Klaus Seuwen, Birgit Baumgarten, Heinz Ruffner, Alexandra Aebi, Martin Rausch, Fabian Kiessling, Matthias Bartneck, Ralf Weiskirchen, Frank Tacke, Gert Storm, Twan Lammers, Marie-Gabrielle Ludwig
Glucocorticoids are well established anti-inflammatory agents, however, their use to treat chronic inflammatory diseases is limited due to a number of serious side effects. For example, long-term local treatment of chronic wounds with glucocorticoids is prohibited by dysregulation of keratinocyte and fibroblast function, leading to skin thinning. Here, we developed and tested liposome formulations for local delivery of dexamethasone to primary human macrophages, to drive an anti-inflammatory/pro-resolution phenotype appropriate for tissue repair...
April 5, 2018: Biomaterials
https://www.readbyqxmd.com/read/29644940/transient-scleraxis-overexpression-combined-with-cyclic-strain-enhances-ligamentous-differentiation
#12
Anne C Nichols, Stephen R Werre, Linda A Dahlgren
Efforts to generate tissue engineered anterior cruciate ligament replacements are limited by a lack of methods to derive mature ligament cells. Viral overexpression of the tendon/ligament marker scleraxis (Scx) can drive cell differentiation; however, the use of viral vectors hampers translation to clinical use. In this study, C3H10T1/2 cells were transiently transfected with expression vectors containing the full-length murine Scx cDNA and cultured in 3D collagen hydrogels under static or cyclic strain for up to 14 days...
April 12, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29642573/3d-printing-of-thermo-responsive-methylcellulose-hydrogels-for-cell-sheet-engineering
#13
Andrea Cochis, Lorenzo Bonetti, Rita Sorrentino, Nicola Contessi Negrini, Federico Grassi, Massimiliano Leigheb, Lia Rimondini, Silvia Farè
A possible strategy in regenerative medicine is cell-sheet engineering (CSE), i.e., developing smart cell culture surfaces from which to obtain intact cell sheets (CS). The main goal of this study was to develop 3D printing via extrusion-based bioprinting of methylcellulose (MC)-based hydrogels. Hydrogels were prepared by mixing MC powder in saline solutions (Na₂SO₄ and PBS). MC-based hydrogels were analyzed to investigate the rheological behavior and thus optimize the printing process parameters. Cells were tested in vitro on ring-shaped printed hydrogels; bulk MC hydrogels were used for comparison...
April 10, 2018: Materials
https://www.readbyqxmd.com/read/29623134/generating-chondromimetic-mesenchymal-stem-cell-spheroids-by-regulating-media-composition-and-surface-coating
#14
BanuPriya Sridharan, Amy D Laflin, Michael S Detamore
INTRODUCTION: Spheroids of mesenchymal stem cells (MSCs) in cartilage tissue engineering have been shown to enhance regenerative potential owing to their 3D structure. In this study, we explored the possibility of priming spheroids under different media to replace the use of inductive surface coatings for chondrogenic differentiation. METHODS: Rat bone marrow-derived MSCs were organized into cell spheroids by the hanging drop technique and subsequently cultured on hyaluronic acid (HA) coated or non-coated well plates under different cell media conditions...
April 2018: Cellular and Molecular Bioengineering
https://www.readbyqxmd.com/read/29617409/microvasculature-directed-thrombopoiesis-in-a-3d-in-vitro-marrow-microenvironment
#15
Surya Kotha, Sijie Sun, Amie Adams, Brian Hayes, Kiet T Phong, Ryan Nagao, Jo-Anna Reems, Dayong Gao, Beverly Torok-Storb, José A López, Ying Zheng
Vasculature is an interface between the circulation and the hematopoietic tissue providing the means for hundreds of billions of blood cells to enter the circulation every day in a regulated fashion. The precise mechanisms that control the interactions of hematopoietic cells with the vessel wall are largely undefined. Here, we report on the development of an in vitro 3D human marrow vascular microenvironment (VME) to study hematopoietic trafficking and the release of blood cells, specifically platelets. We show that mature megakaryocytes from aspirated marrow as well as megakaryocytes differentiated in culture from CD34+ cells can be embedded in a collagen matrix containing engineered microvessels to create a thrombopoietic VME...
2018: PloS One
https://www.readbyqxmd.com/read/29616383/progression-of-conventional-hepatic-cell-culture-models-to-bioengineered-hepg2-cells-for-evaluation-of-herbal-bioactivities
#16
REVIEW
Pardeep Kaur, Robin, Rajendra G Mehta, Saroj Arora, Balbir Singh
Cancer cell lines of human tissue origin have been extensively used to investigate antiproliferative activity and toxicity of herbal extracts, isolated compounds, and anticancer drugs. These cell lines are genetically and/or epigenetically well characterized to determine the altered expression of proteins within given cellular pathways and critical genes in cancer. Human derived hepatoma (HepG2) cell line has been extensively exploited to examine cytoprotective, antioxidative, hepatoprotective, anti-hepatoma, hypocholesterolemic, anti-steatosis, bioenergetic homeostatic and anti-insulin resistant properties...
April 3, 2018: Biotechnology Letters
https://www.readbyqxmd.com/read/29614512/dynamic-compression-promotes-the-matrix-synthesis-of-nucleus-pulposus-cells-through-up-regulating-n-cdh-expression-in-a-perfusion-bioreactor-culture
#17
Yichun Xu, Hui Yao, Pei Li, Wenbin Xu, Junbin Zhang, Lulu Lv, Haijun Teng, Zhiliang Guo, Huiqing Zhao, Gang Hou
BACKGROUND/AIMS: An adequate matrix production of nucleus pulposus (NP) cells is an important tissue engineering-based strategy to regenerate degenerative discs. Here, we mainly aimed to investigate the effects and mechanism of mechanical compression (i.e., static compression vs. dynamic compression) on the matrix synthesis of three-dimensional (3D) cultured NP cells in vitro. METHODS: Rat NP cells seeded on small intestinal submucosa (SIS) cryogel scaffolds were cultured in the chambers of a self-developed, mechanically active bioreactor for 10 days...
March 26, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29614431/3d-cell-printing-of-in-vitro-stabilized-skin-model-and-in-vivo-pre-vascularized-skin-patch-using-tissue-specific-extracellular-matrix-bioink-a-step-towards-advanced-skin-tissue-engineering
#18
Byoung Soo Kim, Yang Woo Kwon, Jeong-Sik Kong, Gyu Tae Park, Ge Gao, Wonil Han, Moon-Bum Kim, Hyungseok Lee, Jae Ho Kim, Dong-Woo Cho
3D cell-printing technique has been under spotlight as an appealing biofabrication platform due to its ability to precisely pattern living cells in pre-defined spatial locations. In skin tissue engineering, a major remaining challenge is to seek for a suitable source of bioink capable of supporting and stimulating printed cells for tissue development. However, current bioinks for skin printing rely on homogeneous biomaterials, which has several shortcomings such as insufficient mechanical properties and recapitulation of microenvironment...
March 23, 2018: Biomaterials
https://www.readbyqxmd.com/read/29609492/cancer-cells-growing-on-perfused-3d-collagen-model-produced-higher-reactive-oxygen-species-level-and-were-more-resistant-to-cisplatin-compared-to-the-2d-model
#19
Qingxi Liu, Zijiang Zhang, Yupeng Liu, Zhanfeng Cui, Tongcun Zhang, Zhaohui Li, Wenjian Ma
INTRODUCTION: Three-dimensional (3D) collagen scaffold models, due to their ability to mimic the tissue and organ structure in vivo, have received increasing interest in drug discovery and toxicity evaluation. METHODS: In this study, we developed a perfused 3D model and studied cellular response to cytotoxic drugs in comparison with traditional 2D cell cultures as evaluated by cancer drug cisplatin. RESULTS: Cancer cells grown in perfused 3D environments showed increased levels of reactive oxygen species (ROS) production compared to the 2D culture...
March 1, 2018: Journal of Applied Biomaterials & Functional Materials
https://www.readbyqxmd.com/read/29607608/three-dimensional-co-culture-of-primary-hepatocytes-and-stellate-cells-in-silk-scaffold-improves-hepatic-morphology-and-functionality-in-vitro
#20
Guofeng Wei, Jiwen Wang, Qiang Lv, Ming Liu, Hong Xu, He Zhang, Lingling Jin, Jiachuan Yu, Xiuli Wang
A vigorous in vitro model of liver that could recapitulate hepatic phenotype and functionality in vivo would exclusively improve the efficiency of bioartificial liver, drug discovery or even transplantation therapy. Owing to the indispensable role of 3D microenvironment in supporting viability and function of hepatocytes in vitro, much effort recently has been focused on improving reproducibility and standardization of primary hepatocyte cultures with a paradigm shift to 3D culture system, In the present study, an improved 3D co-culture system of hepatocytes was established in which rat primary hepatocytes were co-cultured with hepatic stellate cells in silk porous scaffolds...
April 1, 2018: Journal of Biomedical Materials Research. Part A
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