Determination of tissue-specific expression of cellular prion protein (PrPc) is essential for understanding its poorly explained role in organisms. Herein we report on quantification of PrP mRNA in golden hamsters, a popular experimental model for studying mechanisms of transmissible spongiform encephalopathies (TSE), by real-time RT-PCR. Total RNA was isolated from four different regions of the brain and six peripheral organs of eight golden hamsters. PrP mRNA copy numbers were determined using absolute standard curve method with real-time quantitative PCR instrument. It was found that high mRNA levels were present in all four regions of the brain examined, including obex, neocortex, cerebellum, and thalamus. In peripheral organs examined, inguinal lymph node showed high level of the expression similar to that in overall brain; spleen, heart, liver, and lung showed moderate levels of the expression; and kidney showed the lowest expression. Our result is consistent with the potential involvement of different organs in prion diseases and offers essential data for further study of TSE mechanism in this animal model.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1081/abio-200053404 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Circadian clock communication during homeostasis and ageing.
Nat Rev Mol Cell Biol
January 2025
Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain.
Maintaining homeostasis is essential for continued health, and the progressive decay of homeostatic processes is a hallmark of ageing. Daily environmental rhythms threaten homeostasis, and circadian clocks have evolved to execute physiological processes in a manner that anticipates, and thus mitigates, their effects on the organism. Clocks are active in almost all cell types; their rhythmicity and functional output are determined by a combination of tissue-intrinsic and systemic inputs.
View Article and Find Full Text PDFFunctional connectivity within sensorimotor cortical and striatal regions is regulated by sepsis in a sex-dependent manner.
Neuroimage
January 2025
Department of Psychiatry, University of Florida, Gainesville, FL-32610; McKnight Brain Institute, University of Florida, Gainesville, FL-32610. Electronic address:
Sepsis is a state of systemic immune dysregulation and organ failure that is frequently associated with severe brain disability. Epidemiological studies have indicated that younger females have better prognosis and clinical outcomes relative to males, though the sex-dependent response of the brain to sepsis during post-sepsis recovery remains largely uncharacterized. Using a modified polymicrobial intra-abdominal murine model of surgical sepsis, we characterized the acute effects of intra-abdominal sepsis on peripheral inflammation, brain inflammation and brain functional connectivity in young adult mice of both sexes.
View Article and Find Full Text PDFComplex gene-dependent and-independent mechanisms control daily rhythms of hematopoietic cells.
Biomed Pharmacother
January 2025
Department of Experimental Medicine, Sapienza University of Rome, Rome 00161, Italy. Electronic address:
The abundance and behaviour of all hematopoietic components display daily oscillations, supporting the involvement of circadian clock mechanisms. The daily variations of immune cell functions, such as trafficking between blood and tissues, differentiation, proliferation, and effector capabilities are regulated by complex intrinsic (cell-based) and extrinsic (neuro-hormonal, organism-based) mechanisms. While the role of the transcriptional/translational molecular machinery, driven by a set of well-conserved genes (Clock genes), in nucleated immune cells is increasingly recognized and understood, the presence of non-transcriptional mechanisms remains almost entirely unexplored.
View Article and Find Full Text PDFWith complex pathogenesis, Alzheimer's disease (AD) is a neurological illness that has worsened over time. Inter-organ crosstalk, which is essential for coordinating organ function and maintaining homeostasis, is involved in multiple physiological and pathological events. Increasing evidence suggests that AD is closely associated with multiple diseases of peripheral organs, including the gut, adipose tissue, liver, and bone.
View Article and Find Full Text PDFBasic Science and Pathogenesis.
Alzheimers Dement
December 2024
Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, USA.
Background: We have found that the MHC class I-like MR1 molecule and the innate-like T cells that recognize them (MAIT-mucosal-associated invariant T cells) contribute to the development of pathology in Alzheimer's disease (AD). Moreover, we find elevated levels of MR1 expression and increased numbers of MAIT cells in the brains of 5XFAD mice overtime; these MAIT cells express high surface levels of the T cell activation markers, CD25 and CD69. Here, we are focused on how these two phenomena are connected in AD pathology.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!