Psilocybin is more than a psychedelic drug
Psilocybin is primarily known for its profound influence on consciousness, emotions, and spirituality. However, the effects of psilocybin do not only take place in the brain. As soon as psilocybin is ingested, it first enters the intestines, where it is converted into psilocybin. This is the active substance that affects not only serotonin receptors in the brain, but also interacts with the intestinal wall, the immune system and the microbiome.
We also wrote earlier that psilocybin also acts as an anti-inflammatory in preclinical research and may even play a role in Slows down aging and protects DNA (in vitro cell studies and in mice). When these effects are also present in humans and combined with a healthy lifestyle, a powerful synergy It is possible that mental, physical, and cellular processes mutually reinforce each other. We therefore use this scientific insight to further explore and understand the impact of psilocybin on the microbiome. Use the buttons to read more about these mechanisms of action of psilocybin.
In this article, we explain what the individual effects of psilocybin are on the microbiome, inflammatory processes, aging, and lifestyle. We also explain how these effects interact with each other. We also discuss Potential advantages and disadvantages, so that a complete picture emerges of what psilocybin can do in the body, especially the intestines.
From psilocybin to psilocine: the first stop is the gut
Psilocybin is a natural compound that is found in certain mushrooms and truffles. It belongs to the group of triptamines, a family of molecules that resemble those found in the body Tryptamine en serotonin.
When someone takes psilocybin, it is quickly converted in the gastrointestinal tract and in the liver into psilocybin. This conversion is carried out by enzymes that split off a phosphate group – hence psilocybin is also called the “prodrug” of psilocin.
- Psilocybin = inactive form (as in the case of truffles).
- Psilocybin = active form that acts on the body and the brain.
Psilocybin can bind to serotonin due to its similarity to it. serotonin receptors in the nervous system. In the brain, especially the 5-HT2A receptor important, because activation thereof is associated with the psychedelic effects (visual changes, heightened emotions, a sense of unity).
But psilocybin doesn't remain confined to the brain: it also enters the intestines Rightly so, where it affects both host cells and microorganisms. Also compare the structure between serotonin, psilocybin and psilocin and imagine how these substances can fit into the same receptors due to the similar shape.
Serotonin in the intestines: more than just a neurotransmitter
What is serotonin?
Serotonin (5-hydroxytryptamine, 5-HT) is a neurotransmitter that plays a role in the brain when it comes to mood, sleep, and impulse control. But what is less known is that about 90% of all serotonin in our body is produced in the intestines through special cells in the intestinal wall, the Enterochromaffin cells.
In the gut, serotonin has several functions:
- It regulates the peristaltic (the squeezing movements that move food through the intestines).
- It affects the sensitivity of the intestine (pain, pressure, stretching).
- It communicates with the immune system in the intestinal wall.
It works like signal substance for microbes in the intestinal lumen.
Serotonin as a communication between humans and microbes
Microorganisms in the gut are not only passive residents, but are in constant communication with our body. They can produce substances that affect humans (for example, fatty acids such as butyrate), but they can also recognize and respond to human substances.
Serotonin is one such signaling molecule. Some bacteria have specific proteins that allow them to detect serotonin and adapt their behavior accordingly. Psilocin, which closely resembles serotonin, is likely to exert its effects via the same mechanisms.
Which microorganisms respond to serotonin (and possibly psilocin)?
There are two known ways in which microorganisms in the microbiome can measure and respond to the amount of serotonergic substances such as serotonin and the similar substance psilocin. This occurs via the CpxA/CpxR system in bacteria and via the LasR system.
The CpxA/CpxR system
It CpxA/CpxR system is a so-called two-component system which is common in Gram-negative bacteria such as Escherichia coli en Salmonella. CpxA is a membrane-bound sensor that detects changes in the environment. When serotonin or possibly psilocin (more research needed) binds to CpxA, the signal transmission to the regulator CpxR changes. This causes genes involved in virulence (the harmful effect of a bacterium) is suppressed. The result is that the bacterium is less able to attach itself, produces less toxins and behaves less aggressively in the gut. In this way, an increased presence of serotonergic substances can protective effect have an excessive bacterial load.
Contaminated microorganisms:
- Escherichia coliThe most well-known intestinal parasites: usually harmless, but some strains cause diarrhea, urinary infections or even blood poisoning. Through CpxA/CpxR they react to serotonin/psilocin with lower virulence.
- Salmonella enterica: Responsible for food poisoning and typhoid. Through CpxA, serotonin can inhibit the activity of so-called virulence islands, which makes it less likely that the bacteria can spread.
- Shigella sppCauses bloody diarrhea (shigellosis). Although less well studied, it is expected that serotonin also inhibits virulence in this case.
- Yersinia spp: Known from plague (Y. pestis), but also intestinal infections (Y. enterocolitica). The CpxA system is influenced by serotonin, probably with inhibitory effects on disease-causing behavior.
- Klebsiella pneumoniaeNormally present in the intestine, but in weakened people it can cause pneumonia or sepsis. CpxA/CpxR helps this bacterium process stress signals; serotonin reduces virulence.
- Enterobacter spp: Common intestinal commensals that are usually harmless. In cases of weak immune systems, they can cause infections. Here too, serotonin likely plays a role in suppressing virulence.
- Citrobacter spp: Similar to Enterobacter: present in the intestine, sometimes causing opportunistic infections. CpxA makes them susceptible to serotonin, making them less aggressive.
The LasR system
The LasR system is mainly used by Pseudomonas aeruginosa, LasR is part of a quorum-sensing mechanism: a way in which bacteria communicate with each other to adjust their behavior as soon as they are present in large numbers. Normally, LasR binds to auto-inducer molecules that bacteria themselves produce, but research shows that serotonin disrupts this system in P. aeruginosa can be activated. This leads to an increase in virulence: the bacteria produce more biofilm (a protective mucous layer), produce more harmful enzymes and become more aggressive. For psilocybin, which is very similar to serotonin, this has not yet been directly investigated but is plausible.
Contaminated microorganisms:
- Pseudomonas aeruginosa: An opportunistic pathogen that occurs in the gut, skin, and lungs and is especially dangerous in weakened people. Through the LasR system, this bacterium reacts to serotonin with an increase in virulence. More biofilm is formed and more harmful enzymes are released, making infections more serious and harder to control. A similar effect is suspected for psilocybin, but this needs to be confirmed.
- Pseudomonas fluorescensUsually a relatively harmless organism, but in certain circumstances it can become an opportunistic pathogen. This species possesses LasR homologs and could theoretically react similarly, but this has not yet been convincingly demonstrated.
- Burkholderia cepacia complex: Known to cause persistent infections in people with leprosy. This group of bacteria has several quorum-sensing regulators that are related to LasR. It is conceivable that serotonin or psilocin has an effect on this, but there are no hard research results available.
- Acinetobacter baumannii: An important cause of hospital infections, especially in the respiratory tract, urinary tract and wounds. This bacterium also has LasR-like regulators, but whether serotonin or psilocin actually increases virulence is not yet convincingly proven.
Net effect on the microbiome
This piece about the beneficial effect of psilocybin on the microbiome is a hypothesis from our perspective, based on extrapolation from studies on psilocybin in human cells and animals. This remains a hypothesis for the time being because the direct effects of psilocybin on the composition of the human microbiome have not yet been convincingly demonstrated through scientific research.
On the one hand, psilocybin can be health benefit mean. In bacteria that use the CpxA/CpxR system, as Escherichia coli, Salmonella en Klebsiella pneumoniae, the binding of serotonin or psilocin leads to a reduction in the virulence. This means that these bacteria attach less well to the intestinal wall, produce fewer toxins, and behave more calmly. This can be beneficial for the host, as the strain on the immune system decreases and the risk of inflammation is reduced. Yeasts such as Candida albicans reacting favorably: serotonin and probably psilocin also inhibit the transition to the aggressive hyphae form, thus limiting the risk of overgrowth.
On the other hand, psilocybin can also be a negative effect have. Bacteria that use it LasR system, as Pseudomonas aeruginosa, They may actually respond with an increase in virulence. Under the influence of serotonin and psilocin, they form more biofilms and produce harmful enzymes. This makes them more difficult to combat and can lead to more inflammation and symptoms, especially in people with a weakened immune system or a disrupted microbiome. Other bacteria with LasR-like systems, such as Burkholderia cepacia en Acinetobacter baumannii, Let's see similar reactions.
It is therefore clear that psilocybin is not unequivocally “good” or “bad” for the gut flora. The effect depends on the present microorganisms and the balance in the microbiome. In healthy people with a stable gut flora, the beneficial effects may predominate, whereas in people with a lot of opportunistic bacteria, the adverse effects may be more noticeable.
However, this must also be put in perspective. A psilocybin experience lasts on average six hours. This means that the exposure of microbes to psilocybin is relatively short. For most microorganisms, the impact will be temporary and not permanently change the composition of the gut flora. At most, there may be some changes during and shortly after the session. enhanced or weakened activity, which then decreases again once the substance has disappeared from the body.
In summary: Psilocybin can theoretically contribute to a less harmful behavior, which is beneficial for health, whereas in other microbes it is actually harmful. stimulating effect It may be that this is temporarily detrimental. Given the short duration of a session, the impact on the microbiome is likely limited. Further research must clarify what the exact effect of psilocybin is on the gut microbiome. LasR system en CpxA/CpxR system. We hope and expect that the effect on the CpxA/CpxR system is greater than on the LasR system, as this would better explain the positive effects of psilocybin on lasting mood improvements.
Psilocybin, the microbiome, inflammation, aging and lifestyle: one interconnected whole
When we compare the different effects of psilocybin, a clear pattern emerges: the microbiome is the hub that connects everything together. The effect of psilocybin on microbes in the gut actually works by affecting inflammatory processes, cell aging, and even the ability to make and maintain healthy lifestyle choices.
One of the most important effects in the gut is that psilocybin acts on many microorganisms via the CpxA/CpxR system the virulence reduced.This literally gives the immune system rest and ensures a lower inflammation pressure.
Less inflammation in the intestines translates into healthier microbiome environment. A calmer gut flora produces more protective substances such as short-chain fatty acids, which in turn strengthen the intestinal wall and further inhibit inflammation. This cascade works its way into the rest of the body: lower inflammation levels mean less damage to cells and DNA. Chronic inflammation is after all an important accelerator of aging, among other things by accelerating telomere shortening, the protective caps on our DNA. By inhibiting inflammation and reducing cellular stress, psilocybin can indirectly contribute to Healthy aging.
This creates a synergistic effect: the microbiome influences inflammation, inflammation influences aging, and psilocybin intervenes at all these levels simultaneously. The psychological effect of psilocybin also plays a role in this. During a session, people often gain new insights and more motivation to live healthier lives. This behavioral change has direct consequences on the microbiome: a fiber-rich diet, more exercise, better sleep, and less stress strengthen the gut flora, further supporting the anti-inflammatory and anti-aging effects of psilocybin.
Thus psilocybin forms a Bridge between mind and body. In the gut, it influences microbes and inflammation levels; in the brain, it opens up space for new patterns and behavioral choices. Both routes reinforce each other through the microbiota–gut–brain axis. Ultimately, a vicious cycle of positive change emerges: a calmer microbiome leads to less inflammation, which slows cell aging and clears the way for sustainable lifestyle improvements, which in turn further strengthen the microbiome.
Conclusion and sources
The potential positive effects of psilocybin on the microbiome are not in themselves. They form the starting point of a chain reaction that impacts inflammation, aging, and behavior. It is this holistic interconnectedness that explains why psilocybin can not only bring about spiritual enlightenment but could also have tangible physical health benefits.
At the same time, it is important to emphasize that many of these findings have so far been based primarily on Preclinical research (cells and mice) arrive. On a large scale and for a long time Research in humans Further research is needed to confirm the extent to which psilocybin actually works as an anti-inflammatory, anti-aging, or microbiome-modulating agent.
What is already clear is that psilocybin forms a powerful bridge between the mind and the body. It can provide insights and motivation to live healthier, and it is precisely these lifestyle changes that have a proven positive effect on the gut flora, inflammation, and aging. This creates a synergy between psychological, biological, and lifestyle processes.
This blog is based on our own articles and insights, supplemented with scientific sources. Through the buttons below you can find more information about the physical effects of psilocybin, the research we refer to, and the possibility to sign up for psilocybin therapy.