1
|
Yang Y, Zeng X, Fu C, Tan L, Yang N, Liu Y, Shen Q, Wei J, Yu C, Lu C. Paper-based microfluidics and tailored gold nanoparticles for visual colorimetric detection of multiplex allergens. Anal Chim Acta 2023; 1272:341497. [PMID: 37355331 DOI: 10.1016/j.aca.2023.341497] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 06/05/2023] [Accepted: 06/06/2023] [Indexed: 06/26/2023]
Abstract
The highly efficient and accurate recognition of targeted allergens is an essential element in the diagnosis of allergic diseases and follow-up desensitization treatment in clinic. The current clinical methods widely used to detect sIgE are high cost, time-consuming procedures, and bulky equipment. Herein, a multiplex microfluidic paper-based device (multi-μPAD) was developed that combined with tailored gold nanoparticles for simultaneously visual, colorimetric detection of different allergens in serum. This device could be used as quantitative detection of sIgE with LOD as low as 0.246 KUA/L in colorimetric method. In vitro results also showed that this device possessed good repeatability, high accuracy and incredible stability in different pH (6.0-7.4) and temperature (24-37 °C), as well as long-term storage within 90-day. Finally, this method was successfully utilized for assessing clinical multi-sample screening in 35 allergic patients. After the addition of the samples from allergic patients, the agreement rate of clinical results with commercial enzyme-linked immunosorbent assay (ELISA) kit reached more than 97%, which further indicated that this device had the advantages of efficient, accurate and sensitive to screen various allergens in real clinical serum samples. Therefore, by simply altering antigens and antibodies, this device can also be used for high-throughput detection of other allergens, making it considerable potential for clinical diagnosis of allergic diseases.
Collapse
Affiliation(s)
- Yuxing Yang
- Precision Medicine Center, The First Clinical Medical College of Gannan Medical University, Ganzhou, 341001, China
| | - Xiaofei Zeng
- Precision Medicine Center, The First Clinical Medical College of Gannan Medical University, Ganzhou, 341001, China
| | - Chan Fu
- Key Laboratory of Flexible Electronics (KLOFE), School of Flexible Electronics (Future Technologies) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Lingxiao Tan
- Respiratory Department, Children's Hospital of Nanjing Medical University, Nanjing, 210008, China
| | - Naidi Yang
- Key Laboratory of Flexible Electronics (KLOFE), School of Flexible Electronics (Future Technologies) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Yongxin Liu
- Key Laboratory of Flexible Electronics (KLOFE), School of Flexible Electronics (Future Technologies) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Qian Shen
- Key Laboratory of Flexible Electronics (KLOFE), School of Flexible Electronics (Future Technologies) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China
| | - Jifu Wei
- Department of Pharmacy, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China; Research Division of Clinical Pharmacology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China.
| | - Changmin Yu
- Key Laboratory of Flexible Electronics (KLOFE), School of Flexible Electronics (Future Technologies) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing, 211816, China; State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210023, China.
| | - Chen Lu
- Precision Medicine Center, The First Clinical Medical College of Gannan Medical University, Ganzhou, 341001, China.
| |
Collapse
|
2
|
Floyd ML, Adams KE, Golden DBK. Updates and Recent Advances on Venom Immunotherapy. CURRENT TREATMENT OPTIONS IN ALLERGY 2023; 10:1-19. [PMID: 37361640 PMCID: PMC10148014 DOI: 10.1007/s40521-023-00336-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/21/2023] [Indexed: 06/28/2023]
Abstract
Purpose of Review Venom immunotherapy has been utilized to treat Hymenoptera venom allergy since the 1920s. Over the last century, significant advances in the fields of immunology and genetics have led to improvements in the practice of venom immunotherapy. This review encompasses recent advances in the use of venom immunotherapy to provide precise, patient-centered care. Recent Findings Research about the mechanism of action of venom immunotherapy continues to highlight the modification of both the innate and adaptive immune systems. Molecular techniques have allowed for the identification of specific venom allergens to improve the diagnostic accuracy and safety of venom immunotherapy. Research continues to support the safety of accelerated schedules which can impact the cost, adherence, and quality of life for patients receiving this treatment modality. Finally, significant advances have led to the elucidation of risk factors that place patients at risk for reactions during and after venom immunotherapy. Creation of risk profiles for venom-allergic patients can thus inform the process of immunotherapy in order to provide personalized and precise care. Summary Significant progress in the use of venom immunotherapy makes the practice a dynamic and active field for continued research. Future research needs to build on these recent advances to continue to optimize and enhance this life-saving treatment.
Collapse
Affiliation(s)
- Michelle L. Floyd
- 42d Medical Group, Maxwell AFB, 300 South Twining Street, Building 760, Montgomery, AL 36112 USA
| | - Karla E. Adams
- Department of Medicine, Allergy and Immunology Division, Wilford Hall Ambulatory Surgical Center, Lackland AFB, 1100 Wilford Hall Loop, Bldg 4554, San Antonio, TX 78236 USA
| | - David B. K. Golden
- Johns Hopkins University, 25 Crossroads Drive #410, Owings Mills, MD 21117 USA
| |
Collapse
|