Abstract:

Acute respiratory distress syndrome (ARDS) is a severe critical respiratory disease characterized by refractory hypoxemia, which is caused by intrapulmonary and extrapulmonary factors. It has a rapid onset, and high morbidity and mortality. With the global prevalence and mutation of respiratory viruses, the diagnosis and treatment of ARDS have become more complicated, requiring exploration into the molecular mechanisms and effective therapeutic methods of the occurrence and development of ARDS in clinical practice. Researchers have found that the pathogenesis of ARDS involves the interaction of multiple factors, including imbalances in inflammatory responses and redox reactions, dysregulation of endothelial cells, disruption of alveolar-capillary barrier and abnormalities in coagulation function. Although advancements in molecular biology techniques such as genomics and proteomics have provided new insights into the pathogenesis of ARDS, there is still a lack of early diagnostic biomarker and effective drugs targeted for ARDS. At present, more comprehensive and in-depth basic and clinical research is still needed. Increasing evidence suggests that transient receptor potential vanilloid-1 (TRPV1), also known as the capsaicin receptor, plays a crucial role in respiratory system diseases. TRPV1 is widely distributed in the upper respiratory tract, airway smooth muscle, alveoli and pulmonary blood vessels, participating in mediating airway dilation and constriction, cough reflex, and release of inflammatory mediators related to inflammation and pain, as well as sensing and transmitting various biological signals related to temperature, chemical substances and mechanical stress stimuli in the respiratory system. The widespread distribution and diverse physiological functions of TRPV1 make it a research hotspot in the occurrence and development of respiratory system diseases such as pneumonia, pulmonary edema, cough, asthma and acute lung injury. This article reviews the correlation and molecular mechanisms between ARDS caused by sepsis, traumatic brain injury and respiratory viruses with TRPV1, aiming to summarize the positive effects of regulating TRPV1 expression on the pathogenesis of ARDS and provide reference for strengthening early diagnosis and effective intervention measures for ARDS.

Key words: transient receptor potential vanilloid-1 (TRPV1), acute lung injury, acute respiratory distress syndrome (ARDS), respiratory failure, biomarker