Chise 🧬🧫🦠🔬💉🥼🥽 Profile picture
Jan 18 13 tweets 5 min read Read on X
This is HUGE news! An investigational vaccine, ELI-002, appears to be effective in delaying relapse of KRAS-mutated pancreatic AND colorectal cancer, according to Phase I study results. FURTHERMORE, T-cell response correlated with an 86% REDUCTION in risk of relapse or death.🧵⬇️
This research has been published in Nature. You can find it here:


✅ Highly respected journal
✅ Expert written journal
✅ Peer reviewed journalnature.com/articles/s4159…
ELI-002, an investigational therapeutic vaccine, put to the test by researchers at The University of Texas MD Anderson Cancer Center, appeared to be effective in delaying relapse of KRAS-mutated pancreatic and colorectal cancer (CRC), according to results from a Phase I
AMPLIFY-201 study.

All of the patients had a specific tumor mutation called mKRAS mutation, which is one of the more common gene mutations linked to cancer. Among the 25 patients with pancreatic ductal adenocarcinoma (PDAC) and CRC who were considered at high risk for relapse
and who received a maximum of 10 doses of the ELI-002 vaccine, T-cell responses occurred in 84%, and in 100% of those in the two highest dose cohorts. FURTHERMORE, T-cell response correlated with an 86% reduction in risk of relapse or death.
About ELI-002

ELI-002 is composed of AMP-modified mutant KRAS peptide antigens and ELI-004- an AMP-modified immune-stimulatory oligonucleotide CpG adjuvant available as an off-the-shelf subcutaneous administration. Researchers explained that what distinguishes ELI-002
as a vaccine is that it is directed INTO lymph nodes in order to elicit more robust immune responses and target mutant KRAS with greater potency and precision. Image
ELI-002 is also an “off the shelf” vaccine, meaning in that it DOES NOT need to be tailored to an individual person and can easily be added as an adjuvant cancer therapy.

•ELI-002 works by targeting two genetic mutations of KRAS genes, specifically KRAS G12D and KRAS G12R.  •KRAS genes help to regulate cell division and growth. They aren’t inherently harmful, but when they are mutated can become cancerous.  •KRAS mutations are found in up to one-in-four cases of all forms of cancer, but in colon cancer that number jumps to more than one-in-three.Trusted Source  •Additionally, KRAS mutations are also associated with lower rates of survival and more aggressive tumor growth.  •The goal of ELI-002 is to prevent the cancer from returning after it has been success...
The Trial Met Safety AND Tolerability Goals  •For the trial, researchers recruited 25 people who had already successfully undergone surgery and chemotherapy for cancer but were considered high risk for the cancer recurring.  •Twenty of the participants were previously treated for pancreatic cancer while five had colorectal cancer.   •The trial took place between 2021 and 2023.  •Participants received a fixed dose of Amph-Peptides 2P (G12D and G12R, 0.7 milligrams each) while the amount of another compound called Amph-CpG-7909, which enhances the effectiveness of the treatment, was gradually...
•None of the participants experienced toxicity related to dose, meaning that the drug was safe at every level it was administered. Additionally, no serious adverse health outcomes or side effects were reported, such as cytokine release syndrome, which can develop from the use of immunotherapies.  •The most common side effects of the drug were fatigue, injection site reaction, and myalgia (muscle aches).  •The side effects in the study for the vaccine appeared to be quite modest, especially compared to something like chemotherapy.
Of the 25 patients in the trial (median age 61 years), 20 had pancreatic cancer and five had CRC. All 25 previously had surgery or another procedure designed to be curative, and seven previously had received radiation therapy.
The vaccine was evaluated at dose levels of 0.1, 0.5, 2.5, 5, and 10 mg. T-cell responses were observed in 21 of the 25 patients, and at the two highest dose levels, all patients (11 of 11) demonstrated elevated mutant KRAS-specific T-cell responses following ELI-002 vaccination.


•Researchers observed that efficacy correlated with T-cell responses above or below the median-fold increase (12.75-fold) over baseline. Above-median T-cell response correlated with biomarker-assessed clinical antitumor activity, with a median change from baseline in tumor biomarker of -76% versus -10.2% in those patients with a below-median T-cell response (P<0.0014).  •What does this all mean? Well, firstly, researchers observed a T-cell response, an indicator that the vaccine has successfully activated the immune system, in more than four-in-five of the participants in the trial. All of ...
•Researchers also monitored circulating tumor DNA (CTDNA) levels in the bloodstream, a biomarker of tumors and cancerous cells. High levels of CTDNA can indicate the presence of cancer, whereas decreasing quantities can indicate a shrinking tumor. If no CTDNA is present in the bloodstream it can signal that the person is in remission and there is no sign of cancer.  •Researchers said they observed REDUCTION in CTDNA levels in 84% of the trial participants.
Image
Image
People who’ve undergone surgery for pancreatic and colorectal cancer have a high risk of relapsing. Having an effective vaccine that can attack any remaining cancer cells in the body could lower the risk of relapse and, ultimately, boost chances of survival.
These findings are very exciting because this is one of the first studies to show that a vaccine may reduce the chance of a very aggressive cancer (pancreas) from returning and while these results are still early on, they’re quite promising. The results of the trial have now led
to a subsequent Phase 2 trial that will further test the safety and efficacy of ELI-002.

You can read all this and more here:



nature.com/articles/s4159…
mdanderson.org/newsroom/vacci…
medicalnewstoday.com/articles/new-v…
medpagetoday.com/hematologyonco…

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More from @sailorrooscout

Jan 14
I want to address some FAQs that have found their way into my DMs as of late:

1. Yes, I’m “that furry” that helped work on the COVID-19 vaccines. I still do-amongst other vaccines!

2. No, you’re not dreaming.

3. Rude messages and/or snide comments will be ignored. Thank you!
And no, this is in no way meant to seem like gloating. Gloating isn’t good as is and never would it be in the circumstances of a devastating pandemic. I’m just tired of the “You’re a furry?” and some nasty name calling or threats. Like, yes I am. Get over it and have a good day.
And for those who have been EXTREMELY supportive through these past few years, I sincerely appreciate all the lovely comments. The countless “thank you” are not necessary but nevertheless they are appreciated.
Read 4 tweets
Dec 20, 2023
Science Rules! 🧬🧫🦠🔬💉🥼🥽 Image
🎨: @JJENIAC

Recently, I have been getting a fair amount of questions regarding updated vaccines, timing, and currently circulating SARS-CoV-2 strains so I figured a short FAQ thread would be helpful! 🧪🧵⬇️
What is the COVID-19 vaccine? The COVID-19 vaccine lessens the severity of COVID-19 by teaching the immune system to recognize and fight the virus that causes the disease.  For fall/winter 2023–2024, the updated COVID-19 vaccine is based on the XBB.1.5 variant. The updated vaccine is made by Pfizer-BioNTech, Moderna and Novavax. This season, only one shot of the vaccine is needed for most people, and there are no boosters. (People who are immunocompromised or ages 6 months to 4 years may need more than one 2023–2024 vaccine.)
Read 15 tweets
Dec 14, 2023
So, not COVID related but, this is REALLY exciting news. Midstage trial results show Moderna’s cancer vaccine mRNA-4157 in combination with Merck’s KEYTRUDA reduced the risk of death or relapse in patients with melanoma by HALF after roughly THREE years! Let’s talk about that! 🧵
KEEP IN MIND THESE ARE RESULTS THAT HAVE HELD UP AFTER THREE YEARS showing that benefits demonstrated a year ago have held up over time. That is ASTOUNDING.

Phase 2b randomized KEYNOTE-942/mRNA-4157-P201 study, a clinical trial evaluating mRNA-4157 (V940), an investigational
individualized neoantigen therapy (INT), in combination with KEYTRUDA, Merck's anti-PD-1 therapy, in patients with resected high-risk melanoma (stage III/IV) following complete resection. In this planned analysis occurring with a median follow-up of approximately three years,
Read 13 tweets
Dec 5, 2023
HOW COOL IS THIS?! Scientists have created tiny biological robots called “Anthrobots” that can move across a surface and have been found to encourage the growth of neurons across a region of damage in a lab dish. These may one day be able to help heal wounds or damaged tissue! 🧵 A colored image shows the multicellular structure of an anthrobot, surrounded by cilia on its surface, enabling it to move and explore its environment.
The multicellular robots, ranging in size from the width of a human hair to the point of a sharpened pencil, were made to self-assemble and shown to have a remarkable healing effect on other cells. The discovery is a starting point for the researchers’ vision to use patient- Each anthrobot grows from a single cell.
derived biobots as new therapeutic tools for regeneration, healing, and treatment of disease.

In the current study, published in Advanced Science, Levin, along with Ph.D. student Gizem Gumuskaya, discovered that bots can be created from adult human cells without any genetic The work follows from earlier research in the laboratories of Michael Levin, Vannevar Bush Professor of Biology, and Josh Bongard at the University of Vermont, in which they created multicellular biological robots from frog embryo cells called Xenobots, capable of navigating passageways, collecting material, recording information, healing themselves from injury, and even replicating for a few cycles on their own. At the time, researchers did not know if these capabilities were dependent on their being derived from an amphibian embryo, or if biobots could be constructed from cells of other s...
Read 13 tweets
Oct 4, 2023
HOW COOL IS THIS? Ever wonder how killer T-cells attack cancer cells? This is a high resolution/rapid acquisition video of a cytotoxic (killer) T- cell (red) attacking a Lymphoma cancer cell (blue) captured on a specialized Lattice Light Sheet microscope. Science Rules!
Source: Cambridge University
•Killer T-Cell: The Cancer Assassin
The fiery protrusions you see in the T-cell are formed by the actin cytoskeleton. Killer T-cells strongly adhere and display dynamic cytoskeletal activity when they recognize a cancer cell they will target for destruction.

ncbi.nlm.nih.gov/books/NBK27101/
my.clevelandclinic.org/health/body/23…
Read 13 tweets
Sep 29, 2023
I aspire to exude as much confidence as this little Kinesin protein strutting along a microtubule while hauling intracellular cargo.

Look at that little guy go!
This actual animation dates back to 2006, when it was published by a pair of Harvard University researchers working with an artist and animator named John Liebler. Together, the trio took several years to produce a dramatized 3D modeling of internal cellular function titled
“The Inner Life of the Cell."

In reality, there are many different proteins, three of which- kinesins, myosins, and dyneins- are considered "motor" proteins. As their name suggests, these high-energy bad boys, powered by ATP- that is, the main energy molecule that
Read 13 tweets

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