RNA FISH is a powerful method to detect specific RNAs in fixed cells. It allows both localization and quantification of RNA molecules within individual cells and tissues. Refined RNA FISH methods have also been developed to determine RNA transcription and degradation rates. This chapter describes an RNA FISH protocol that we developed in order to study the expression and localization of satellite III RNAs. This specific class of non-coding RNAs is expressed in response to various cellular stresses including heat shock. This protocol is based on the use of a biotinylated LNA probe subsequently detected by a streptavidin-Alexa Fluor(®) 488 conjugate. A protocol allowing efficient coupling of RNA FISH and protein detection by immunofluorescence is also described in this chapter.
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http://dx.doi.org/10.1007/978-1-4939-2547-6_8 | DOI Listing |
STAR Protoc
January 2025
School of Public Health, Chongqing Medical University, Chongqing 400016, China; Chongqing Miankai Biotechnology Research Institute Co., Ltd., Chongqing 400025, China. Electronic address:
The recombinase polymerase amplification (RPA)-CRISPR-Cas12a-FQ system enables sensitive detection of environmental DNA (eDNA) in rare fish species. Here, we present a protocol for eDNA amplification and Cas12a for target recognition using RPA. We describe steps for identifying a target site, synthesis and purification of CRISPR RNA (crRNA), and RPA isothermal amplification.
View Article and Find Full Text PDFBMC Microbiol
January 2025
Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Taizhou Key Laboratory of Biomedicine and Advanced Dosage Forms, School of Life Sciences, Taizhou University, Taizhou, 318000, Zhejiang Province, China.
The microbiota inhabiting the surface of fish mucosal tissue play important roles in the nutrition, metabolism and immune system of their host. However, most investigations on microbial symbionts have focused on the fish gut, but the microbiota associated with external mucosal tissues (such as the skin and gill) is poorly understood. This study characterised the traits and dynamic of microbial communities associated with the skin, gill and gut of large yellow croaker (Larimichthys crocea) culturing with net enclosures or pens at different sampling times (with seasonal transition).
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Jiangsu Key Laboratory of Ocean-Land Environmental Change and Ecological Construction, School of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, Jiangsu, China; Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang 222005, China. Electronic address:
As cold-blooded vertebrates, fish are sensitive to environmental changes. The outcome of pathogen infections in fish therefore is highly shaped by hypoxia. The epigenetic regulation of competitive endogenous RNA (ceRNA) bridging non-coding RNAs and mRNAs represents a promising mechanism modulating antibacterial response plus environmental stress.
View Article and Find Full Text PDFFish Shellfish Immunol
January 2025
Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Sun Yat-Sen University, Zhuhai 519082, China. Electronic address:
Acanthopagrus latus (yellowfin seabream) is an economically important fish in the southeast coastal sea of China. Its slower growth rate makes it more prone to diseases in the cultivation period, leading to substantial economic losses. Epidemiological investigations have indicated that Streptococcus agalactiae is one of the most common Gram-positive pathogens, which has garnered increasing attention due to its high contagion and lethality rates in A.
View Article and Find Full Text PDFInt J Rheum Dis
January 2025
The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui, China.
Background: N6-methyladenosine (m6A) is one of the most conserved internal RNA modifications, which has been implicated in many biological processes, such as apoptosis and proliferation. Wilms tumor 1-associating protein (WTAP), as a key component of m6A methylation, is a nuclear protein that has been associated with the regulation of proliferation and apoptosis. Rheumatoid arthritis (RA), a systemic, infiltrating autoimmune disease, is characterized by synovial hyperplasia.
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