A novel treatment regimen treats autoimmune disorders. Said novel treatment regimen efficaciously treats autoimmune disorders with an advantageous safety profile and/or a high quality of life for the patient. Said novel treatment regimen shows an advantageous benefit-risk ratio for patients endangered by the risk of infections.

A novel treatment regimen treats autoimmune disorders. Said novel treatment regimen efficaciously treats autoimmune disorders with an advantageous safety profile and/or a high quality of life for the patient. Said novel treatment regimen shows an advantageous benefit-risk ratio for patients endangered by the risk of infections.

A method for preparing inhalable targeted gold nanoparticles for accelerated lung delivery and treating lung inflammation is provided. The method includes preparing plasmids; performing plasmids transformation; performing protein expression induction; performing protein purification; and preparing spike RBD-conjugated gold nanoparticles (Au@PEG-RBD NPs). The airborne NP preferentially accumulates in lungs with lipopolysaccharides-induced ARDS to healthy lungs and enters alveolar epithelial cells that express angiotensin converting enzyme (ACE) 2 and L-SIGN, both Spike receptors activated in ARDS hamsters. The NP treats tissue injury, oxidative stress, and inflammation more effectively than corticosteroids, without gold retention in major organs or toxicity 1-year post-inhalation. The gold core blocks p38 mitogen-activated protein kinase and polo-like kinase 3. Similar efficacy is observed in hamsters with hydrochloric acid-induced ARDS. The self-therapeutic NPs, when combined with bioinspiration and non-invasive delivery, provide a safe, effective, and targeted treatment for lung inflammation.

The application provides a plurality of new therapeutic peptides, which are designed based on the heptad repeat region of a viral spike fusion protein (such as SARS-Cov2, MERS-CoV, or HCov-OC43) or a heptad repeat region in a paramyxovirus (such as Measles, Nipah, or HPIV3)), new therapeutic conjugates that comprising these therapeutic peptides, and methods of using the therapeutic peptide conjugates for the treatment of a condition or disease associated with a viral infection.