
๐๐๐ฐ ๐๐ซ๐ญ๐ข๐๐ฅ๐ ๐๐จ๐ฎ๐ฅ๐ ๐๐๐ฏ๐๐๐ฅ ๐ญ๐ก๐ ๐๐ซ๐ข๐ ๐ข๐ง ๐จ๐ ๐ญ๐ก๐ ๐๐จ๐ง๐ ๐๐๐๐๐!

๐๐จ๐๐๐ฅ ๐จ๐ ๐ญ๐ก๐ ๐ง๐๐ฐ ๐๐ซ๐ญ๐ข๐๐ฅ๐.
1.

๐๐ฆ๐ฆ๐ฎ๐ง๐ ๐๐๐ง๐ฌ๐ข๐ญ๐ข๐ณ๐๐ญ๐ข๐จ๐ง ๐๐ง๐ ๐๐ง๐๐ฅ๐๐ฆ๐ฆ๐๐ญ๐จ๐ซ๐ฒ ๐๐๐ฌ๐ฉ๐จ๐ง๐ฌ๐:

๐๐ซ๐จ๐ฉ๐จ๐ฌ๐ข๐ญ๐ข๐จ๐ง: the S1 subunit of SARS-CoV-2 can induce a form of โsensitizationโ in the immune system. This means that, following exposure to the S1 protein, the immune system becomes more reactive to future inflammatory stimuli. This sensitization leads to a more intense and longer lasting inflammatory response compared to a normal response to an inflammatory stimulus.

๐๐๐๐ก๐๐ง๐ข๐ฌ๐ฆ: Sensitization is associated with an increase in the expression of antigen-presenting molecules such as MHC-II in brain microglial cells. This suggests that the S1 protein alters the activation threshold of immune cells, making them more likely to respond in an exaggerated manner to future exposures to pathogens or inflammatory stimuli.
2.

๐๐ฆ๐ฉ๐๐๐ญ ๐จ๐ง ๐๐๐ ๐๐ฑ๐ข๐ฌ ๐๐ง๐ ๐๐จ๐ซ๐ญ๐ข๐ฌ๐จ๐ฅ ๐๐ซ๐จ๐๐ฎ๐๐ญ๐ข๐จ๐ง:

๐๐๐ ๐๐ฑ๐ข๐ฌ: Unlike pathogen antigens, such as LPS, which stimulate the HPA axis to increase cortisol production, the S1 subunit does not follow this pattern. Instead of increasing cortisol levels, exposure to S1 causes a decrease in basal cortisol levels in the brain and does not activate the HPA axis in the expected manner. This may contribute to down-regulation of inflammation and an uncontrolled immune response.

๐๐จ๐ซ๐ญ๐ข๐ฌ๐จ๐ฅ: The decrease in cortisol observed after S1 exposure suggests that the immune system becomes less regulated, which may lead to exacerbated inflammation and increased sensitivity to future inflammatory stimuli.
3.

๐๐จ๐ง๐ฌ๐๐ช๐ฎ๐๐ง๐๐๐ฌ:

Symptoms and Behavior: S1-triggered sensitization manifests in symptoms such as changes in physical activity, eating behavior, and fever response. These effects are related to alterations in the functioning of the hypothalamus, which regulates multiple physiological and behavioral functions.

Disease Model: Results suggest that exposure to S1 may induce long-lasting changes in the immune system and hormonal regulation, contributing to increased vulnerability to inflammation and symptoms similar to those seen in disorders such as Long COVID.

:
https://www.sciencedirect.com/science/article/pii/S0889159124005105?via=ihub
๐๐จ๐๐๐ฅ ๐๐ซ๐จ๐ฉ๐จ๐ฌ๐๐ ๐ข๐ง ๐๐ฎ๐ซ ๐๐๐ฏ๐ข๐๐ฐ ๐๐ซ๐ญ๐ข๐๐ฅ๐.
1.

๐๐จ๐ฅ๐๐๐ฎ๐ฅ๐๐ซ ๐๐ข๐ฆ๐ข๐๐ซ๐ฒ ๐๐ง๐ ๐๐ฎ๐ญ๐จ๐ข๐ฆ๐ฆ๐ฎ๐ง๐ข๐ญ๐ฒ:

๐๐ซ๐จ๐ฉ๐จ๐ฌ๐๐: SARS-CoV-2 protein S induces molecular mimicry with ACTH, generating an autoimmune response against ACTH. This results in hypophysitis and cortisol depletion.

๐๐๐๐ก๐๐ง๐ข๐ฌ๐ฆ: HLA-DRB1 alleles, such as DR15, can promote immune hyperactivation against the SARS-CoV-2 S protein. This hyperactivation may lead to an autoimmune response due to molecular mimicry with ACTH. In individuals with these susceptible alleles, the exacerbated immune response can result in pituitary damage and reduced ACTH production.
2.

๐๐๐ ๐๐ฑ๐ข๐ฌ ๐๐ง๐ ๐๐จ๐ซ๐ฆ๐จ๐ง๐๐ฅ ๐๐ฒ๐ฌ๐๐ฎ๐ง๐๐ญ๐ข๐จ๐ง:
* ๐๐๐ ๐๐ฑ๐ข๐ฌ: Autoimmune hypophysitis and decreased ACTH lead to reduced cortisol production. Prolonged exposure to these viral antigens causes pituitary dysfunction and contributes to symptoms such as chronic fatigue and hormonal disturbances. Decreased cortisol levels lead to immune exhaustion by not decreasing T-lymphocyte activation.

:
https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2024.1422940/full

๐๐จ๐๐๐ฅ ๐๐จ๐ฆ๐ฉ๐๐ซ๐ข๐ฌ๐จ๐ง ๐๐ง๐ ๐๐ฎ๐ฉ๐ฉ๐จ๐ซ๐ญ ๐๐จ๐ซ ๐ญ๐ก๐ ๐๐ฎ๐ญ๐จ๐ข๐ฆ๐ฆ๐ฎ๐ง๐ ๐๐ฒ๐ฉ๐จ๐ญ๐ก๐๐ฌ๐ข๐ฌ.
The new article indirectly supports our hypothesis by demonstrating that the S1 subunit of SARS-CoV-2 protein S induces a neuroinflammatory priming and increases MHC-II expression in microglial cells. This priming elevates S1 protein presentation through MHC-II, which may lead to prolonged hyperactivation of the immune system. This sensitization could increase the propensity of the immune system to respond in an exaggerated manner to future exposures to pathogens or inflammatory stimuli and to attack self-antigens with molecular mimicry, such as ACTH, particularly in individuals genetically predisposed via HLA-II alleles.
Furthermore, the reduction in brain corticosterone following S1 exposure, together with dysfunction in the HPA axis, supports the idea that neuroinflammatory priming contributes to a dysregulated immune response and increased activation of autoimmune processes.

๐๐๐ซ๐๐ฅ๐ฅ๐๐ฅ๐ข๐ฌ๐ฆ ๐ฐ๐ข๐ญ๐ก ๐๐ฎ๐ญ๐จ๐ข๐ฆ๐ฆ๐ฎ๐ง๐ ๐๐ฒ๐ฉ๐จ๐ฉ๐ก๐ฒ๐ฌ๐ข๐ญ๐ข๐ฌ ๐๐ง๐๐ฎ๐๐๐ ๐๐ฒ ๐๐ฆ๐ฆ๐ฎ๐ง๐ ๐๐ก๐๐๐ค๐ฉ๐จ๐ข๐ง๐ญ ๐๐ง๐ก๐ข๐๐ข๐ญ๐จ๐ซ๐ฌ (๐๐๐๐ฌ)
Immune Checkpoint Inhibitors (ICIs) provide a relevant example of how immune hyperactivation can induce autoimmune hypophysitis in genetically susceptible individuals (HLA-II alleles). ICIs, by blocking immune regulatory proteins, can cause uncontrolled inflammation of the pituitary gland. This phenomenon is particularly notable in patients with susceptible HLA-II alleles, who may experience an autoimmune response directed against the pituitary gland. ICI-induced autoimmune hypophysitis illustrates how immune hyperactivation can result in significant pituitary damage, similar to that seen in conditions such as ME/CFS, Long COVID and post-vaccinal syndromes.

๐๐จ๐ฆ๐ฉ๐๐ซ๐ข๐ฌ๐จ๐ง ๐ฐ๐ข๐ญ๐ก ๐๐จ๐ง๐ ๐๐๐๐๐ ๐๐จ๐ฌ๐ญ-๐๐๐๐๐ข๐ง๐๐ญ๐ข๐จ๐ง ๐๐๐ฌ๐๐ฌ.
The immune hyperactivation observed in ICI-induced autoimmune hypophysitis and in the SARS-CoV-2 model in individuals with susceptible HLA-II alleles may provide an explanation for Long COVID cases developed after vaccination. In these cases, exposure to SARS-CoV-2 protein S by vaccination may induce the same immune hyperactivation. This hyperactivation may result in persistent inflammation and autoimmune responses similar to those seen in viral infection-induced hypophysitis, due to molecular mimicry with ACTH and altered regulation of the HPA axis.

๐๐ซ๐๐๐ญ๐ฆ๐๐ง๐ญ.
1.

๐๐ฅ๐ข๐ฆ๐ข๐ง๐๐ญ๐ ๐๐ข๐ซ๐๐ฅ ๐๐ง๐ญ๐ข๐ ๐๐ง: Use antivirals or strategies to eliminate SARS-CoV-2 protein S and reduce immune hyperactivation.
2.

๐๐จ๐ซ๐ญ๐ข๐๐จ๐ฌ๐ญ๐๐ซ๐จ๐ข๐๐ฌ: Apply corticosteroids to reduce inflammation and, if pituitary damage is present, consider corticosteroids in replacement doses for hormone deficiency.
3.

๐๐ฌ๐ฌ๐๐ฌ๐ฌ ๐๐จ๐ซ๐ญ๐ข๐ฌ๐จ๐ฅ: Morning cortisol tests may not be reliable for detecting hypocortisolism. Perform saliva cortisol testing in several shots throughout the day for accurate assessment of hypocortisolism.
4.

๐๐ฎ๐ฉ๐ฉ๐ฅ๐๐ฆ๐๐ง๐ญ๐ฌ ๐๐ง๐ ๐๐๐๐ข๐ญ๐ข๐จ๐ง๐๐ฅ ๐๐ฎ๐ฉ๐ฉ๐จ๐ซ๐ญ: Use anti-inflammatory and antioxidant supplements to support treatment and reduce residual inflammation.

๐๐ก๐๐ซ๐ with other patients so they can understand their disease.
๐๐จ๐ซ๐ ๐ข๐ง๐๐จ๐ซ๐ฆ๐๐ญ๐ข๐จ๐ง

:
https://x.com/manruipa/status/1810664159354192253