scholarly journals Model-Based Characterization of Inflammatory Gene Expression Patterns of Activated Macrophages

2016 ◽  
Vol 12 (7) ◽  
pp. e1005018 ◽  
Author(s):  
Julia Rex ◽  
Ute Albrecht ◽  
Christian Ehlting ◽  
Maria Thomas ◽  
Ulrich M. Zanger ◽  
...  
Keyword(s):  
Gene Expression ◽  
Expression Patterns ◽  
Gene Expression Patterns ◽  
Activated Macrophages ◽  
Inflammatory Gene Expression ◽  
Inflammatory Gene ◽  
Model Based

scholarly journals Characterization of the CRM Gene Family and Elucidating the Function of OsCFM2 in Rice

Biomolecules ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 327 ◽  
Author(s):  
Qiang Zhang ◽  
Lan Shen ◽  
Deyong Ren ◽  
Jiang Hu ◽  
Li Zhu ◽  
...  
Keyword(s):  
Gene Expression ◽  
Rna Splicing ◽  
Chloroplast Development ◽  
Function Analysis ◽  
Expression Patterns ◽  
Gene Expression Patterns ◽  
Plant Growth And Development ◽  
Group I ◽  
Chloroplast Rna

The chloroplast RNA splicing and ribosome maturation (CRM) domain-containing proteins regulate the expression of chloroplast or mitochondrial genes that influence plant growth and development. Although 14 CRM domain proteins have previously been identified in rice, there are few studies of these gene expression patterns in various tissues and under abiotic stress. In our study, we found that 14 CRM domain-containing proteins have a conservative motif1. Under salt stress, the expression levels of 14 CRM genes were downregulated. However, under drought and cold stress, the expression level of some CRM genes was increased. The analysis of gene expression patterns showed that 14 CRM genes were expressed in all tissues but especially highly expressed in leaves. In addition, we analyzed the functions of OsCFM2 and found that this protein influences chloroplast development by regulating the splicing of a group I and five group II introns. Our study provides information for the function analysis of CRM domain-containing proteins in rice.

scholarly journals Identification and characterization of an injury-induced skeletal progenitor

2015 ◽  
Vol 112 (32) ◽  
pp. 9920-9925 ◽  
Author(s):  
Owen Marecic ◽  
Ruth Tevlin ◽  
Adrian McArdle ◽  
Eun Young Seo ◽  
Taylor Wearda ◽  
...  
Keyword(s):  
Gene Expression ◽  
Progenitor Cells ◽  
Expression Patterns ◽  
Gene Expression Patterns ◽  
Cell Type ◽  
Fracture Callus ◽  
Adult Mice ◽  
Induced Changes ◽  
Identification And Characterization

The postnatal skeleton undergoes growth, remodeling, and repair. We hypothesized that skeletal progenitor cells active during these disparate phases are genetically and phenotypically distinct. We identified a highly potent regenerative cell type that we term the fracture-induced bone, cartilage, stromal progenitor (f-BCSP) in the fracture callus of adult mice. The f-BCSP possesses significantly enhanced skeletogenic potential compared with BCSPs harvested from uninjured bone. It also recapitulates many gene expression patterns involved in perinatal skeletogenesis. Our results indicate that the skeletal progenitor population is functionally stratified, containing distinct subsets responsible for growth, regeneration, and repair. Furthermore, our findings suggest that injury-induced changes to the skeletal stem and progenitor microenvironments could activate these cells and enhance their regenerative potential.

scholarly journals Characterization of an In Vitro model of MGUS Progression to Multiple Myeloma

Blood ◽  
2016 ◽  
Vol 128 (22) ◽  
pp. 4411-4411
Author(s):  
Brea Lipe ◽  
Amanda Wise ◽  
Tara L. Lin ◽  
Omar S. Aljitawi ◽  
Devon Koestler ◽  
...  
Keyword(s):  
Gene Expression ◽  
Flow Cytometry ◽  
Disease Progression ◽  
In Vitro Model ◽  
Plasma Cells ◽  
Expression Patterns ◽  
Gene Expression Patterns ◽  
Vitro Model

Abstract Introduction: Multiple Myeloma (MM) is an incurable cancer characterized by a pre-malignant clonal phase of disease called monoclonal gammopathy of undetermined significance (MGUS). Most patients with MGUS do not develop overt MM and the biology underlying this potential transformation is unclear. Investigations to prevent the development of MM from MGUS are limited by the relative infrequency of MGUS progression. Unfortunately, MGUS cells have historically proven difficult to grow in vitro because of slow rates of proliferation and difficulty in sustaining cell cultures. We present evidence of an in vitro model that generates MM-like plasma cells from patients diagnosed with only MGUS. We further present gene expression patterns of primary patient cells versus the induced MM cells to provide guidance as to important initiating events within our model. Methods: We collected a CD38+ cell fraction and a mononuclear (CD38-) fraction from 4 patients with MGUS using a Miltenyl Biotec column Separator. The CD38- fraction was grown in RPMI with 10% FBS and 1% sodium pyruvate with or without a polyglycolic acid/ poly L-lactic acid 90/10 (PLGA) copolymer scaffold to create 3D culture conditions. The mononuclear layer from healthy donors and the MM cell line, U266, were grown as controls. We then analyzed the initial CD38+ fraction, the initial CD38- fraction, and the CD38- fraction grown in media or 3D co-culture by flow cytometry for expression of kappa, lambda, CD38, CD138, CD45, CD19, and CD56. Gene expression analysis was performed using RNA-sequencing data from the CD38+, CD38-, cultured CD38-, and control cells. Expression of the top 100 ranked differentially expressed genes, which demonstrated the largest variation, were further analyzed using the nCounter® Analysis System (NanoString Technologies). Results: The CD38- fraction from MGUS patients grew into an adherent layer of elongated cells, consistent with bone marrow stromal cells. After several months, the stromal cells were noted to change shape and new, round cells were observed budding off from the stromal layer. Over time, the stromal layer disappeared and the round plasmacytoid cells remained. Characterization of these round cells revealed them to be plasma cells by IHC and flow cytometry. When comparing these in vitro generated cells to the initial CD38+ fraction removed from patients, the new cells showed the re-emergence of CD38 and CD138, increased expression of CD56 and CD19, and decreased expression of CD45. Gene expression analysis revealed 3 distinct populations of cells. The initial CD38- fraction separated with the healthy mononuclear layer. The initial CD38+ fraction clustered independently while the grown plasma cells clustered with the U266 cells. Analysis of the differential gene expression patterns revealed differences in the expression of immunoglobulin genes, as well as alterations in expression of extracellular matrix and cell adhesion markers including PAI-1, MMP2, COL1A2, and GREM1; and alterations in expression of mitochondrial genes. Conclusion: To our knowledge, this is the first in vitro simulation of disease progression from MGUS to MM. Our model induced the growth of plasma cells with an aggressive phenotype as assayed by flow cytometry. The gene expression profile further demonstrates gene expression patterns from our induced plasma cells consistent with MM versus MGUS. The alterations in extracellular matrix proteins as seen in our induced plasma cells are consistent with an epithelial to mesenchymal type transition implicated in disease progression, metastasis, and bone lesions. Additionally, the alterations in mitochondrial gene expression have been implicated in early disease progression in colon cancer and MM. These findings provide further evidence that our model simulates disease transformation and the expression data suggest possible pathways that may be important in myeloma disease progression that can be further evaluated in vivo. Disclosures No relevant conflicts of interest to declare.

scholarly journals Characterization of inflammatory gene expression and galectin-3 function after spinal cord injury in mice

2012 ◽  
Vol 1475 ◽  
pp. 96-105 ◽  
Author(s):  
Ahdeah Pajoohesh-Ganji ◽  
Susan M. Knoblach ◽  
Alan I. Faden ◽  
Kimberly R. Byrnes
Keyword(s):  
Gene Expression ◽  
Spinal Cord ◽  
Spinal Cord Injury ◽  
Inflammatory Gene Expression ◽  
Inflammatory Gene ◽  
Cord Injury ◽  
Galectin 3
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