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cross-reactivity between aeroallergens and food allergens

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World Journal of Methodology 2015年第2期5卷 31-50页

作者： Florin-Dan Popescu Department of Allergology "Carol Davila" University of Medicine and Pharmacy"Nicolae Malaxa" Clinical Hospital

In patients with respiratory allergy,cross-reactivity between aeroallergens and foods may induce food allergy,symptoms ranging from oral allergy syndrome to severe anaphylaxis.Clinical entities due to Ig E sensitization to cross-reactive aeroallergen and food allergen components are described for many sources of plant origin(pollen-food syndromes and associations,such as birch-apple,cypress-peach and celery-mugwortspice syndromes,and mugwort-peach,mugwortchamomile,mugwort-mustard,ragweed-melon-banana,goosefoot-melon associations),fungal origin(Alternariaspinach syndrome),and invertebrate,mammalian or avian origin(mite-shrimp,cat-pork,and bird-egg syndromes).Clinical cases of allergic reactions to ingestion of food products containing pollen grains of specific plants,in patients with respiratory allergy to Asteraceae pollen,especially mugwort and ragweed,are also mentioned,for honey,royal jelly and bee polen dietary supplements,along with allergic reactions to foods contaminated with mites or fungi in patients with respiratory allergy to these aeroallergens.Medical history and diagnosis approach may be guided by the knowledge about the diverse cross-reacting allergens involved,and by the understanding of these clinical entities which may vary significantly or may be overlapping.The association between primary Ig E sensitization with respiratory symptoms to inhaled allergens and food allergy due to cross-reactive allergen components is important to assess in allergy practice.The use of molecular-based diagnosis improves the understanding of clinically relevant Ig E sensitization to cross-reactive allergen components from aeroallergen sources and foods.

关键词： cross-reactivity syndromes and associations Aeroallergens Food allergens

Studies on Preparation and Characteristics of Monoclonal Antibodies Against Enrofloxacin and cross-reactivity of Related Fluoroquinolones

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Agricultural Sciences in China 2004年第11期3卷 862-868页

作者： CAIQin-ren ZENGZhen-ling YANGGui-xiang CHENZhang-liu CollegeofVeterinaryMedicine SouthChinaAgriculturalUniversityGuangzhou510642P.R.China

An ester activation method was employed to couple enrofloxacin(ENFX) to the carrier proteins BSA and OVA. The conjugates ENFX-BSA and ENFX-OVA were identified with an UV spectrophotometer and amino acid automation analysis instrument, and resulted in conjugates with 48 ENFX molecules per carrier molecule(BSA). Splenocytes from mice immunized with ENFX-BSA were fused with SP2/0 myeloma cells and hybridomas secreting antibodies against enrofloxacin were selected and cloned. Two stable monoclonal antibodies, 2C5, 5D5 of the subclass IgG2a, were isolated. Using antibody 5D5, an indirect competitive inhibition enzyme-linked immunosorbent assay (Ci-ELISA) was developed for the quantitative detection of enrofloxacin and its metabolites. The IC50 of the standard curve was 21.67 ng mL-1 and the limit of detection for enrofloxacin was 0.13 ng mL-1. This method was sensitive and had a linear range from 0.13 to 10 000 ng mL-1 (r= -0.9782). Monoclonal antibody 5D5 exhibited high relative affinity to enrofloxacin, and the cross-reactivities with ciprofloxacin, marbofloxacin, sarafloxacin and danorfloxacin were 110.8, 27.40, 71.05 and 37.41%, respectively. Three non-fluoroquinolones of cefadroxil, chloramphenicol, sulfadimethoxine were tested and there was no cross-reaction between them.

关键词： Enrofloxacin Monoclonal antibodies cross-reactivity

Visual Detection of Vibrio parahaemolyticus using Combined CRISPR/Cas12a and Recombinase Polymerase Amplification

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Biomedical and Environmental Sciences 2022年第6期35卷 518-527页

作者： JIANG Han Ji TAN Rong JIN Min YIN Jing GAO Zhi Xian LI Hai Bei SHI Dan Yang ZHOU Shu Qing CHEN Tian Jiao YANG Dong LI Jun Wen Tianjin Institute of Environmental&Operational Medicine Tianjin 300050China

Objective To establish an ultra-sensitive,ultra-fast,visible detection method for Vibrio parahaemolyticus(VP).Methods We established a new method for detecting the tdh and trh genes of VP using clustered regularly interspaced short palindromic repeats/CRISPR-associated protein 12a(CRISPR/Cas12a)combined with recombinase polymerase amplification and visual detection(CRISPR/Cas12a-VD).Results CRISPR/Cas12a-VD accurately detected target DNA at concentrations as low as 10^(-18)M(single molecule detection)within 30 min without cross-reactivity against other bacteria.When detecting pure cultures of VP,the consistency of results reached 100%compared with real-time PCR.The method accurately analysed pure cultures and spiked shrimp samples at concentrations as low as 10^(2)CFU/g.Conclusion The novel CRISPR/Cas12a-VD method for detecting VP performed better than traditional detection methods,such as real-time PCR,and has great potential for preventing the spread of pathogens.

关键词： Vibrio parahaemolyticus CRISPR/Cas12a-VD Isothermal amplification Recombinase polymerase amplification Visual detection cross-reactivity

Viral infections in orthopedics: A systematic review and classification proposal

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World Journal of Orthopedics 2022年第11期13卷 1015-1028页

作者： Konstantinos Sidiropoulos Savvas Ilias Christofilos Konstantinos Tsikopoulos Dimitrios Kitridis Lorenzo Drago Gabriele Meroni Carlo Luca Romanò Venu Kavarthapu General Hospital of Serres Serres 62100Greece Department of Genetics Evolution and EnvironmentUniversity College LondonLondon WC1E 6BTUnited Kingdom Department of Orthopaedics 404 Army General HospitalLarissa 41222Greece the First Department of Orthopaedics Aristotle University of ThessalonikiThessaloniki 54124Greece Department of Biomedical Sciences for Health and Microbiome University of MilanMilan 20133Italy Department of Biomedical Surgicaland Dental SciencesOne Health UnitUniversity of MilanMilan 20133Italy Gruppo di Studio SIOT Infezioni-Clinica San Gaudenzio-Novara-Gruppo Policlinico di Monza University of MilanMilan 20100Italy Trauma and OrthopaedicsKings College Hospital LondonDenmark HillLondon SE59RSUnited Kingdom

BACKGROUND Although the impact of microbial infections on orthopedic clinical outcomes is well recognized,the influence of viral infections on the musculoskeletal system might have been underestimated.AIM To systematically review the available evidence on risk factors and musculoskeletal manifestations following viral infections and to propose a pertinent classification scheme.METHODS We searched MEDLINE,Cochrane Central Register of Controlled Trials(CENTRAL),the Reference Citation Analysis(RCA),and Scopus for completed studies published before January 30,2021,to evaluate risk factors and bone and joint manifestations of viral infection in animal models and patient registries.Quality assessment was performed using SYRCLE's risk of bias tool for animal studies,Moga score for case series,Wylde score for registry studies,and Newcastle-Ottawa Scale for case-control studies.RESULTS Six human and four animal studies were eligible for inclusion in the qualitative synthesis.Hepatitis C virus was implicated in several peri-and post-operative complications in patients without cirrhosis after major orthopedic surgery.Herpes virus may affect the integrity of lumbar discs,whereas Ross River and Chikungunya viruses provoke viral arthritis and bone loss.CONCLUSION Evidence of moderate strength suggested that viruses can cause moderate to severe arthritis and osteitis.Risk factors such as pre-existing rheumatologic disease contributed to higher disease severity and duration of symptoms.Therefore,based on our literature search,the proposed clinical and pathogenetic classification scheme is as follows:(1)Viral infections of bone or joint;(2)Active bone and joint inflammatory diseases secondary to viral infections in other organs or tissues;and(3)Viral infection as a risk factor for post-surgical bacterial infection.

关键词： Viral infection Musculoskeletal system Bone and joint manifestations Chikungunya Zika Hepatitis C virus Herpesviridae Ross River virus cross-reactivity Classification

Insight analysis of the cross-sensitization of multiple fish parvalbumins via the Th1/Th2 immunological balance and cytokine release from the perspective of safe consumption of fish

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Food Quality and Safety 2022年第4期6卷 690-699页

作者： Yeting Wu Youyou Lu Yuhao Huang Hong Lin Xuewen Dang Yujie Jing Zhaocheng Meng Xiangchen Wang Zhenxing Li College of Food Science and Engineering Ocean University of ChinaQingdaoChina College of Food Science and Technology Huazhong Agricultural UniversityChina Key Laboratory of Environment Correlative Dietology Ministry of Education(Huazhong Agricultural University)WuhanChina Dermatological Department the Affiliated Hospital of Medical College Qingdao UniversityQingdaoChina Medical Laboratory Department Yantaishan HospitalYantaiChina

Objectives:Parvalbumin(PV)is the primary allergen found in fish and is highly conserved.According to some studies,some patients with fish allergy are allergic to only one species of fish but are tolerant to others;however,the underlying mechanism has not been identified.Materials and Methods:The cross-reactivity of these seven fish parvalbumins based on turbot PV-treated mice was determined using BALB/c mouse and RBL-2H3 cell models.Meanwhile,immunoinformatic tools were used to assess cross-reactivity.Results:The results indicated that the seven species of fishes(turbot,large yellow croaker,sea bass,grass carp,common carp,conger eel and Japanese eel)studied exhibited varying degrees of cross-reactivity,with the highest cross-reactivity being between turbot and bass and the lowest being between turbot and conger eel.The bioinformatics analysis revealed that the sequence homology of parvalbumin between conger eel and turbot was the lowest,which may account for the conger eel and turbot cross-reaction being so limited.Parvalbumin was a potent cross-reactive allergen found in turbot,large yellow croaker,sea bass,grass carp,common carp,conger eel and Japanese eel,and the cross-reactivity between conger eel and turbot parvalbumin was the weakest.Conclusion:This study demonstrated that the cross-reactivity between conger eel PV and turbot PV was the weakest.

关键词： Fish immunological balance cross-reactivity sensitization parvalbumin

Examination of Homologies between COVID-19 Vaccines and Common Allergens:The Potential for T Cell-mediated Responses for Allergic Rhinitis and Asthma

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Infectious Diseases & Immunity 2022年第4期2卷 282-284页

作者： Micah Hartwell Benjamin H.Greiner Savannah Nicks Oklahoma State University Center for Health Sciences Department of Psychiatry and Behavioral SciencesTulsaOklahomaUnited States Oklahoma State University Center for Health Sciences Office of Medical Student ResearchTulsaOklahomaUnited States University of Texas Medical Branch Department of Internal MedicineGalvestonTexasUnited States

As the SARS-CoV-2 virus shares relatively large protein sequences homologous to grass pollens,dust mites,and molds,our objective was to assess the potential overlap between the COVID-19mRNA vaccines fromPfizer-BioNtech andModerna and known allergens.We found 7 common allergens with potential for cross-reactivity with the Pfizer vaccine and 19 with theModerna vaccine,including common grasses,molds,and dust mites.T-cell mediated antigen cross-reactivity between viruses and allergens is a relatively new area of study in clinical immunology;a discipline that may be particularly useful regarding the SARS-CoV-2 virus and the allergic response in humans.These results suggest that vaccination with the Pfizer-BioNtech andModerna COVID-19 vaccinesmay contribute to T-cell cross-reactivity with allergens that impact allergic asthma and allergic rhinitis.Further research should assess the clinical implications of COVID-19 vaccination on the severity and symptomatology of the allergic disease,in addition to natural viral infection.

关键词： Rhinitis,allergic Allergy COVID-19 cross-reactivity mRNA Vaccines

Human T-cell immunity against the emerging and re-emerging viruses

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Science China(Life Sciences) 2017年第12期60卷 1307-1316页

作者： Min Zhao Hangjie Zhang Kefang Liu George F.Gao William J.Liu Research Network of lmmunity and Health(RN1H) Beijing Institutes of Life ScienceChinese Academy of SciencesBeijing 100101China Key Laboratory of Medical Virology and Viral Diseases Ministry of Health of People's Republic of ChinaNational Institute for Viral Disease Control and PreventionChinese Center for Disease Control and PreventionBeijing 102206China CAS Key Laboratory of Pathogenic Microbiology and Immunology Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China

Over the past decade, we have seen an alarming number of high-profile outbreaks of newly emerging and re-emerging viruses.Recent outbreaks of avian influenza viruses, Middle East respiratory syndrome coronaviruses, Zika virus and Ebola virus present great threats to global health. Considering the pivotal role of host T-cell immunity in the alleviation of symptoms and the clearance of viruses in patients, there are three issues to be primarily concerned about T-cell immunity when a new virus emerges: first, does the population possess pre-existing T-cells against the new virus through previous infections of genetically relevant viruses; second, does a proper immune response arise in the patients to provide protection through an immunopathogenic effect; lastly, how long can the virus-specific immune memory persist. Herein, we summarize the current updates on the characteristics of human T-cell immunological responses against recently emerged or re-emerged viruses, and emphasize the necessity for timely investigation on the T-cell features of these viral diseases, which may provide beneficial recommendations for clinical diagnosis and vaccine development.

关键词： emerging viruses avian influenza H7N9 MERS-CoV Zika Ebola human immunity T-cell cross-reactivity

Evaluation of cross-reactive antibody response to HVR1 in chronic hepatitis C

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World Journal of Gastroenterology 2010年第35期16卷 4460-4466页

作者： Bing-Shui Xiu Xiao-Yan Feng Jing He Guo-Hua Wang He-Qiu Zhang Xiao-Guo Song Kun Chen Shi-Gan Ling Cui-Xia Zhu Xiang-Ying Zhang Lai Wei Hui-Ying Rao Institute of Basic Medical Sciences Academy of Military Medical Sciences Beijing 100850 China National Institute for Control of Pharma-ceutical and Biological Products Beijing 100050 China Hepatology Institute People Hospital Peking University Beijing 100044China

AIM:To evaluate the presence and cross-reactive anti-bodies against hypervariable region 1(HVR1) in hepatitis C virus(HCV) infected patients and its relationship with the progression of the disease.METHODS:Sixteen representative HVR1 proteins selected from a unique set of 1600 natural sequences were used to semiquantitate the cross-reactivity of HVR1 antibodies in the sera of HCV patients.Fifty-five chronic HCV patients including 23 with asymptomatic mild hepatitis,18 with chronic hepatitis and 16 with liver cirrhosis patients were studied.RESULTS:The degree of the cross-reactivity of anti-HVR1 antibodies in 23 patients with mild asymptomatic hepatitis was 3.09 ± 2.68,which was signif icantly lower than in those with chronic hepatitis(5.44 ± 3.93,P cross-reactivity anti-HVR1 antibodies and patient's age,infection time,serum alanine aminotransferase activity,or serum HCV-RNA concentration.It was the breath of cross-reactivity rather than the presence of anti-HVR1 antibody in HCV sera that was associated with the progression of liver disease.CONCLUSION:The broadly cross-reactive HVR1 antibodies generated in natural HCV patients can not neutralize the virus,which results in persistent infection in patients with chronic hepatitis.

关键词： Hepatitis C virus Hypervariable region 1 cross-reactivity

Reaction of antibodies to Campylobacter jejuni and cytolethal distending toxin B with tissues and food antigens

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World Journal of Gastroenterology 2019年第9期25卷 1050-1066页

作者： Aristo Vojdani Elroy Vojdani Immunosciences Lab. Inc. Los Angeles Cyrex Labs LLC. Phoenix Department of Preventive Medicine Loma Linda University School of Medicine Regenera Medical Los Angeles

BACKGROUND The bacteria Campylobacter jejuni(C. jejuni) is commonly associated with GuillaneBarré syndrome(GBS) and irritable bowel syndrome(IBS), but studies have also linked it with Miller Fisher syndrome, reactive arthritis and other disorders, some of which are autoimmune. It is possible that C. jejuni and its toxins may be crossreactive with some human tissues and food antigens, potentially leading to autoimmune responses.AIM To measure the immune reactivity of C. jejuni and C. jejuni cytolethal distending toxin(Cdt) antibodies with tissue and food antigens to examine their role in autoimmunities.METHODS Using enzyme-linked immunosorbent assay(ELISA) methodology, specific antibodies made against C. jejuni and C. jejuni Cdt were applied to a variety of microwell plates coated with 45 tissues and 180 food antigens. The resulting immunoreactivities were compared to reactions with control wells coated with human serum albumin(HSA) which were used as negative controls and with wells coated with C. jejuni lysate or C. jejuni Cdt which served as positive controls.RESULTS At 3 SD above the mean of control wells coated with HSA or 0.41 OD, the mouse monoclonal antibody made against C. jejuni showed moderate to high reactions with zonulin, somatotropin, acetylcholine receptor, β-amyloid and presenilin.This immune reaction was low with an additional 25 tissue antigens including asialoganglioside, and the same antibody did not react at all with another 15 tissue antigens. Examining the reaction between C. jejuni antibody and 180 food antigens, we found insignificant reactions with 163 foods but low to high immune reactions with 17 food antigens. Similarly, we examined the reaction of C. jejuni Cdt with the same tissues and food antigens. The strongest reactions were observed with zonulin, intrinsic factor and somatotropin. The reaction was moderate with 9 different tissue antigens including thyroid peroxidase, and reaction was low with another 10 different antigens, including neuronal antigens.The reaction of C. jejuni

关键词： Campylobacter jejuni Cytolethal distending toxin Tissue antigens Food antigens Autoimmune reactivities cross-reactivity