COVID-19 Vaccines Interacts with Cancer Biology

“SARS-CoV-2 Vaccination and the Multi-Hit Hypothesis of Oncogenesis".

Introduction:

The global rollout of COVID-19 vaccines was tragic and this tragedy is on display in this review article that summarizes 255 references in the scientific literature. This paper looks at the biological mechanisms that creates a "pro-tumorigenic milieu"—an environment favorable to the growth or recurrence of cancer. This post will explore five of the most significant biological mechanisms of concern raised in that paper, breaking down the science into clear, understandable terms.

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5 Potential Mechanisms of Concern

The Immunity Paradox:

Immune Cells

Lymphopenia

Lymphopenia, an abnormally low count of immune cells called lymphocytes has been observed following COVID-19 vaccination. The source paper cites Phase I/II clinical trials for both the Pfizer and AstraZeneca vaccines, which reported a dose-dependent decrease in lymphocytes occurring 6-8 days after vaccination in 45%-46% of participants.

This temporary drop in immune cells is significant because, as the paper notes, lymphopenia has long been associated with an increased incidence of cancer. Specific immune cells, such as CD8+ T cells, are crucial for immune surveillance, acting like sentinels that seek out and destroy cancerous cells and keep dormant cancer cells in check. A temporary reduction in these cellular guardians could potentially weaken this critical defense system.

Given that lymphopenia, together with inflammation-related factors (described below), contributes to the creation of a microenvironment favorable to cancer progression and/or reawakening of Dormant Cancer Cells (DCCs) which puts patients undergoing cancer treatment in extreme danger.

2. The Spike Protein's Cellular Ripple Effect

Activating Known Cancer Pathways

The COVID-19 vaccines work by instructing our cells to manufactures the SARS-CoV-2 spike protein, which then triggers an immune response. This spike protein—the vaccine—binds to a receptor called ACE2 found on the surface of many human cells. According to data from in vitro studies—experiments conducted on cells in a petri dish—this binding event can do more than just facilitate viral entry; it can also trigger signaling cascades inside the cell. Specifically, the paper highlights the activation of two major pathways: Ras/Raf/MEK/ERK (MAPK) and PI3K/AKT/mTOR.

These are not obscure biological pathways, as they are "frequently involved in malignancy" and acting as "master regulators for cancer." To put this in perspective, over 30% of all human cancers are driven by mutations in Ras genes. The paper finds it particularly noteworthy that free-floating spike protein has been detected in the blood of vaccinated individuals for weeks or even months, creating the potential for these signaling pathways to be activated systemically and for a sustained period.

Considering that human cells sensitively respond to spike and/or its S1 subunit to elicit ACE2 cell signaling and ACE2 exerts multiple anti-tumoral and anti-invasive effects...the (prolonged or transient) spike-mediated ACE2 downregulation (or loss) promotes tumor progression.

3. Vaccine Design Mute Innate Immunity

A Compromised "First Response" System

Our bodies possess a powerful "first response" system known as innate immunity. A key part of this system involves proteins called Toll-like receptors (TLRs), which are designed to detect foreign RNA and sound the alarm. To ensure the vaccine's mRNA can do its job without being immediately destroyed, the mRNA vaccines employ a modification: all the uridine nucleosides are replaced with a synthetic version called N1-methyl-pseudouridine (m1Ψ). This increases the mRNA's stability and helps it evade the immune system.

However, the downside to this design choice is that this modification "ablates TLR activity," which can significantly decrease the production of type I interferons (IFN). Interferons are signaling proteins that are absolutely critical for a robust antiviral response and, importantly, for the immune system's ability to fight cancer. The source connects an impaired IFN response to the reactivation of latent viruses, noting the "increasingly high number of herpes zoster cases" (shingles) that have been reported following mRNA vaccination.

Copious studies in humans and mice underline the importance of endogenous type I IFN, produced by both immune and tumor cells, in the control of tumor growth and in the response to anti-tumor therapies.

4. Our Body's Cancer Guardians

Spike Protein and Tumor Suppressors

The review highlights a bioinformatics analysis—an in silico study—that predicted a strong interaction between the S2 subunit of the spike protein and two of the most well-known tumor suppressor proteins: p53 and BRCA1/2.

These proteins are fundamental to our health, acting as a "major barrier to neoplastic transformation" by regulating the cell cycle and repairing damaged DNA. The spike protein acts like a security guard that mistakenly escorts these "cancer guardians" out of the command center (the nucleus) and locks them in the lobby (the cytoplasm), preventing them from doing their critical DNA repair work. The paper adds that the lipid nanoparticles (LNPs) used to deliver the mRNA have been shown to preferentially accumulate in tumor tissue, making this potential interaction making it more dangerous for cells that are already cancerous or precancerous.

If, as in silico, the S2 subunit of spike interacts with tumor suppressor proteins in vivo, such a demonstration would have ominous implications for the long-term health of those those who received COVID-19 vaccination and especially in those who received repeated booster doses.

5. The Delivery System's Inflammatory Side Effect

Inflammation from Lipid Nanoparticles

To get the fragile mRNA into our cells, the vaccines encase it in a protective bubble called a lipid nanoparticle (LNP). While essential for delivery, these LNPs can have biological effects of their own. The paper cites preclinical studies where the LNPs used were found to be "highly inflammatory in mice," leading to a "massive infiltration of neutrophils" (a type of white blood cell) and the production of various inflammatory cytokines.

This is relevant to cancer because inflammation is a well-established driver of malignancy. The source states that inflammation "predisposes the development of disease and promotes all stages of tumorigenesis." Neutrophils and the web-like structures they release have been specifically implicated in promoting cancer progression and metastasis. This concern is amplified by the "enhanced permeability and retention effect (EPR)," a phenomenon where nanoparticles like LNPs tend to accumulate in tumors, potentially aggravating inflammation precisely where it could be most dangerous—like pouring gasoline on a smoldering fire.

In the context of cancer, inflammation predisposes the development of disease and promotes all stages of tumorigenesis.

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Conclusion:

The core message of the source paper is that these five distinct biological mechanisms could work in concert to fulfill what is known as the "multi-hit hypothesis of oncogenesis." This model is [Dr. Bernstein’s opinion] likely the explanation for Turbo-Cancers due to multiple "hits" that collectively create an environment favorable for cancer progression.

The authors issue an urgent call for the scientific and medical community to rigorously further evaluate these risks. This research is especially critical as mRNA technology is touted to be a foundational platform for future vaccines and therapeutics against other diseases. Showing that this technology being used in this setting is clearly wrong, and when we as a society stop this practice we will satisfy the first principle of medicine: “primum non nocere” (“first, do no harm”).