The Immune Alarm That Explains Why Autoimmune Disease Keeps Getting Worse
There is one upstream mechanism, the inflammasome, that helps explain why Sjögren's disease, long COVID, and so many autoimmune conditions look alike, overlap in the same body, and resist treatment that only chases symptoms.
You are doing everything right. You take your medications, you manage your diet, and you rest when your body tells you to rest. And it keeps getting worse anyway.
If that is your experience with Sjögren's disease, with long COVID, or with any autoimmune diagnosis, there is a reason, and almost nobody has explained it to you yet. I live with Sjögren's disease myself, so I know what it feels like to do everything you were told and still feel like your body is working against you. Today I want to walk you through a mechanism that sits upstream of almost every autoimmune and inflammatory condition, one that helps explain why so many of us carry more than one diagnosis and why symptoms across very different conditions can look so similar.
A quick note before we start: this is for educational purposes only and is not medical advice for your specific situation.
The question your appointments never ask
You have a diagnosis, maybe more than one. Your rheumatologist is treating one piece. Your neurologist has another. Your cardiologist has theirs. But no one is asking why all of those pieces exist in the same body at the same time.
The answer is not bad luck, and it is not that you are unusually fragile. Often there is a shared upstream mechanism driving inflammation across multiple systems at once. Until that mechanism is addressed, treating downstream symptoms one at a time can feel like you are always a step behind. That mechanism has a name, and understanding it changes the conversation you can have with every clinician you see.
Meet the inflammasome, in plain language
Your immune system has a kind of security alarm built into nearly every immune cell in your body. Its job is to detect a threat, an infection, cellular damage, or a toxin, and then fire a warning signal that mobilizes the immune response. When the alarm works the way it should, it fires, the threat is cleared, and the alarm switches off.
Researchers call that alarm the inflammasome, and the most studied version is the NLRP3 inflammasome. When it fires, it releases powerful inflammatory signals that recruit immune cells, drive inflammation, and in some cases trigger a form of cell death meant to eliminate the threat. In a healthy immune system, that whole cascade is lifesaving. A comprehensive 2023 review in Cell lays out how the inflammasome assembles, how it drives this inflammatory cell death, and how far its reach extends across human disease (Barnett et al., 2023).
The problem in autoimmune disease is that the alarm does not always turn off. It keeps firing, the inflammatory signals keep releasing, and the downstream effects, gland damage, fatigue, pain, brain fog, nerve symptoms, and cardiovascular risk, are what you experience as the disease.
Why one mechanism connects Sjögren's, long COVID, and more
These conditions look different on the surface. Different diagnoses, different specialists, different labs, different names. But at the level of the inflammasome, many of them share the same stuck alarm. A 2020 review in Arthritis & Rheumatology documents how inflammasome activation shows up across autoimmune diseases, with elevated inflammatory signals found in the target organs and the blood (Kahlenberg & Kang, 2020).
Sjögren's disease
In Sjögren's disease, dysregulated inflammasome activation occurs in the salivary and lacrimal glands, the glands that make saliva and tears. The same immune mechanism driving the dryness also contributes to the fatigue, the nerve symptoms, the cardiovascular risk, and the systemic inflammation that so many of us carry without anyone connecting the dots.
Long COVID
In long COVID, research suggests the inflammasome is implicated in the persistent fatigue, brain fog, and autonomic dysfunction that so closely mirror what Sjögren's patients experience. A viral trigger activated the alarm. In most people it reset. In long COVID it did not, and the result is a pattern of symptoms that can look very similar to a newly diagnosed Sjögren's patient. It is part of why many people with long COVID go on to receive an autoimmune diagnosis.
Rheumatoid arthritis, lupus, and gout
In rheumatoid arthritis, lupus, and gout, the inflammasome connection has the most established research behind it: the same pathway, the same signal stuck in the on position, and the same downstream cascade rippling across multiple systems. A 2025 review in Autoimmunity Reviews traces how deeply NLRP3 inflammasome activity is embedded in autoimmune disease-related inflammation across these conditions (Carnazzo et al., 2025).
This is why so many of us end up with more than one diagnosis. It is not that we are unusually unlucky. It is one misbehaving immune mechanism expressing itself across several systems, often alongside barrier dysfunction, an off-kilter microbiome, and metabolic or hormonal shifts. It all comes together into one complicated picture of physiology.
Why the alarm stays on: the two-signal model
Here is where lifestyle and environment become genuinely relevant, not as a replacement for medical treatment, but as levers on the terrain where all of this is happening.
The inflammasome needs two signals to fire, not one. The first is priming: something puts the immune system on alert, like a past infection, chronic stress, a disrupted gut barrier, or an environmental exposure. Think of it as loading the gun. The second signal pulls the trigger: cellular damage, mitochondrial stress, ongoing signals from a disrupted microbiome, or the reactive byproducts of a body running a chronic immune response. In autoimmune disease, both signals tend to be present all the time, so the alarm never gets the all-clear it needs to stand down.
What this means in practice is that the second signal, the trigger, is where terrain work has the most leverage. No single change cures an autoimmune disease. But reducing mitochondrial stress, supporting the gut barrier, stabilizing your circadian rhythm, and calming your nervous system's threat response all affect how often that second signal fires. This is terrain work, and it sits alongside medical treatment, not instead of it.
What is coming in the pipeline
Here is the hopeful part. The research community has identified the inflammasome as a target, and a new class of drugs called NLRP3 inhibitors is designed to turn the alarm off at the source rather than symptom by symptom. Next-generation compounds, including one called Inzomelid, are in clinical trials now. If they perform the way early data suggests, they could block the entire downstream inflammatory cascade in a single intervention. The same reviews mapping the inflammasome's role in disease also chart this therapeutic direction (Lu et al., 2024).
These are still early, and they are not available at your pharmacy. But this is the first time the research community is targeting the shared upstream mechanism rather than one downstream symptom. And even before these drugs are approved, understanding the mechanism changes how you can talk with your care team today.
Two things you can do this week
Bring up the inflammasome by name at your next appointment. You might say: "I have been reading about the role of inflammasome activation in autoimmune disease. Is my current plan addressing upstream immune dysregulation, or mostly managing downstream symptoms?" Most rheumatologists and immunologists will know exactly what you mean, and it opens a different kind of conversation.
Look at the modifiable factors that prime the alarm in your own life. Gut barrier support, consistent sleep, nervous system regulation, and mitochondrial support through targeted nutrition and pacing are terrain levers within your reach right now. Not to replace your medical care, but to work alongside it.
You were ahead of the system
If you have been doing everything right and still getting worse, you were not wrong to keep looking for the missing piece, because there was one. The research has been building toward it for years. The reason most appointments never mention the inflammasome is not that it is not real. It is that the gap between research and everyday clinical practice in autoimmune disease is still measured in years, not months.
You were ahead of the system. That is not comfortable, but it is true. And now you have a name for the mechanism, a framework for the conversation, and a pipeline to watch.
Let's keep going together
If your diagnoses have never quite added up, or you have been told your overlapping symptoms are just bad luck, which piece has been hardest to get your care team to connect? I would love to hear.
When you are ready for a next step, here are a few ways to go deeper:
Work with us directly. The RISE and Stronger Pathway Application is one short form, about three or four minutes. Tell us where you live, what you are dealing with, and what you can realistically invest, and our team personally matches you to the right level of support: doctor-led medical care in the states where we are licensed, a guided twelve-week program available anywhere, or the Stronger with Sjögren's community. Start your Pathway Application here (link to be added: RISE Pathway Application URL).
Catch the 5th Annual Virtual Sjögren's Summit Encore. Every session, transcript, and speaker bonus, yours to keep for life. The Encore is open through Sunday, July 27. Get the Encore Pass.
Take the free IC Indicator quiz. Two minutes to see where your immune health currently stands. Take the quiz.
