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W tym Artykule

  • Podsumowanie
  • Streszczenie
  • Wprowadzenie
  • Protokół
  • Reprezentatywne Wyniki
  • Dyskusje
  • Ujawnienia
  • Podziękowania
  • Materiały
  • Odniesienia
  • Przedruki i uprawnienia

Podsumowanie

This protocol describes a multicolor immunofluorescence technique for evaluating the rat model of allergic rhinitis.

Streszczenie

Allergic rhinitis (AR) is a chronic, non-infectious inflammatory disease of the nasal mucosa, primarily mediated by specific immunoglobulin E (IgE), affecting approximately 10%-20% of the world's population. While immunofluorescence (IF) staining has long been a standard technique for detecting disease-specific protein expression, conventional IF techniques are limited in their ability to detect the expression levels of three or more proteins in the same sample. Consequently, multicolor IF techniques have been developed in recent years, which allow the simultaneous labeling of multiple targets in cells or tissues.

This protocol provides a comprehensive overview of the process for establishing a rat model of AR, obtaining nasal mucosal samples, and the technical procedures for multicolor immunofluorescence. All rats in the AR group exhibited typical symptoms such as sneezing, a runny nose, and an itchy nose, with behavioral observations scoring ≥5 points. Hematoxylin and eosin (H&E) staining revealed increased inflammatory cell counts and disrupted nasal mucosal integrity in the AR group. Multicolor immunofluorescence (mIF) demonstrated increased expression of RORγt and TICAM-1, while Foxp3 expression decreased in the nasal mucosa tissue of AR rats.

Wprowadzenie

Allergic rhinitis (AR) is a chronic, non-infectious inflammatory disease of the nasal mucosa primarily mediated by specific immunoglobulin E (IgE)1,2. It is characterized by symptoms such as sneezing, a runny nose, nasal congestion, and nasal itching. With industrialization and urbanization, the prevalence of AR is gradually increasing, affecting approximately 10%-20% of the world's population1. The immunofluorescence (IF) technique is a fluorescent staining method that utilizes an antibody-antigen binding reaction. It can be employed to detect and quantify the distribution and expr....

Protokół

The experimental protocol and procedures have received approval from the Administrative and Animal Research Committee of Chengdu University of Traditional Chinese Medicine (Record number: 2022DL-010). Eight-week-old male Sprague Dawley (SD) rats, weighing 180-200 g, were commercially obtained (see Table of Materials) and housed under a natural light/dark cycle with controlled temperature (23 ± 2 °C) and relative humidity (55% ± 10%). Twelve rats were randomly divided into two groups: the control group and the AR group. All rats were acclimated to these conditions and provided with free access to food and water for one week before the tr....

Reprezentatywne Wyniki

Six SD rats were successfully induced into the AR model through OVA intraperitoneal injection and nasal challenge. AR was induced in all rats in the AR group, accounting for 100% of the group. All rats in the AR group exhibited typical symptoms such as sneezing, a runny nose, and an itchy nose. All behavioral observations scored ≥5 points (Table 2).

H&E staining results on the 21st day of modeling revealed that in the control rats, the nasal mucosa's e.......

Dyskusje

Allergic Rhinitis (AR) is a non-infectious inflammatory disease of the nasal mucosa resulting from a combination of environmental and genetic factors. It has become a global health concern, impacting work efficiency, diminishing the quality of life, impairing sleep, cognitive function, and causing irritability and fatigue. AR affects 10%-20% of the world's population¹ and carries substantial economic costs, causing annual losses of up to 30-50 billion euros in EU countries18. Moreover, se.......

Ujawnienia

The authors have nothing to disclose.

Podziękowania

This work was supported by the Sichuan Provincial Department of Science and Technology (2021YJ0175).

....

Materiały

NameCompanyCatalog NumberComments
Al(OH)3Sollerbauer Biotechnology Co., LtdA7130
75% ethanolAnhui Yiren An Co., Ltd20210107
AmmoniaChengdu Kolon Chemical Co., Ltd2021070101
Anhydrous ethanolChengdu Kolon Chemical Co., Ltd2022070501
Anti-fluorescence quenching sealerSouthernBiotech0100-01
Automatic dyeing machineThermo scientificVaristain Gemini ES
Carrier slidesNantong Mei Wei De Experimental Equipment Co., Ltd220518001
Citrate-phosphate buffer Servicebio biotechnology co., LtdG1201
Citric acid antigen repair solution (PH 6.0)Xavier Biotechnology Co., LtdG1201
CoverslipNantong Mei Wei De Experimental Equipment Co.220518001
CoverslipNantong Mewtech Life Science Co., LtdCS01-2450
CY3-TyramideSawell Biotechnology Co., LtdG1223-50UL
DAPISawell Biotechnology Co., LtdG1012
Decoloring shakerSCILOGEXS1010E
EDTA decalcification solutionWuhan Xavier Biotechnology Co., LtdCR2203047
Electric heating blast dryer Shanghai Yiheng Scientific Instruments Co., LtdDHG-9240A
Embedding box marking machineThermo scientific PrintMate AS
Embedding machineWuhan Junjie Electronics Co., LtdJB-P5
Fast tissue dewatering machineThermo scientificSTP420 ES
Film sealerThermo scientificAutostainer 360
FITC-TyramideSawell Biotechnology Co., LtdG1222-50UL
Fluorescence microscopeSunny Optical Technology Co.LtdCX40
Foxp3Affinity Biosciences Co., Ltdbs-10211R
Freezing tableWuhan Junjie Electronics Co., LtdJB-L5
Goat Anti-Rabbit IgG H&L (HRP)Liankebio Co., LtdGAR0072
Goat serumBiosharpBL210A
H&E staining kitLeageneDH0020
Hemostatic forcepsShanghai Medical Devices Co., LtdJ31010
Hydrochloric acidSichuan Xilong Science Co., Ltd210608
Immunohistochemical penBiosharpBC004
Microwave ovenMideaM1-L213B
Neutral gumSinopharm Group Chemical Reagent Co., Ltd10004160
Ovalbumin Sollerbauer Biotechnology Co., LtdA804010
OvenShanghai Yiheng Scientific Instruments Co., LtdDHG-9240A
Palm centrifugeSCILOGEXD1008E
ParaformaldehydeBeyotime Biotechnology Co., LtdP0099-100ml
Pathology section scanner3DHISTECH KftPannoramic SCAN 
PBS bufferBiosharpG4202
Pipette DragonKE0003087/KA0056573
RorγtAffinity Biosciences Co., LtdDF3196
ScalpelQuanzhou Excellence Medical Co., Ltd20170022
Self-fluorescent quenching agent Sudan Black BBioengineering Co., LtdA602008-0025
SlicerThermo scientificHM325
Slicing machineThermo scientificHM325
SlideNantong Mewtech Life Science Co., LtdPC2-301
Sprague Dawley ratsSichuan Academy of Traditional Chinese MedicineSYX figure-materials-5554 2023-0100
TICAM-1Affinity Biosciences Co., LtdDF6289
Tissue scissorsShanghai Medical Devices Co., LtdJ22120
Tissue spreading baking sheet machineWuhan Junjie Electronics Co., LtdJK-6
TYR-690 fluorescent dyesShanghai Rutron Biotechnology Co., LtdRC0086-34RM
Vortex mixerSCILOGEXSLK-O3000-S
Water bath-slide drierWuhan Junjie Electronics Co., LtdJK-6
Wax trimmerWuhan Junjie Electronics Co., LtdJXL-818
XyleneChengdu Kolon Chemical Co., Ltd2022051901

Odniesienia

  1. Brożek, J. L., et al. Allergic rhinitis and its impact on asthma (ARIA) Guidelines-2016 revision. The Journal of Allergy and Clinical Immunology. 140 (4), 950-958 (2017).
  2. Maurer, M., Zuberbier, T.

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Allergic RhinitisNasal MucosaMulticolor ImmunofluorescenceProtein ExpressionImmunoglobulin EIgEInflammatory CellsROR tTICAM 1Foxp3Rat Model

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