Studying rapamycin and mTOR and metabolism for a long time.

Boston & Prague
Joined December 2012
Interesting hypothesis
Replying to @OpenAI
In the same mouse-brain dataset, GPT-Rosalind found a possible clue to why TSC2 mutations tend to cause more severe tuberous sclerosis than TSC1 mutations. The two genes work together to regulate mTOR. Yet in one group of cerebellar neurons, disrupting TSC2 changed the expression of dozens of genes, including genes involved in neuronal communication. Disrupting TSC1 had little effect on gene expression in the same cell type. Existing treatments already target mTOR. Do they reverse these changes, or is there more to TSC2’s role in these neurons?
2
16
3,053
David M. Sabatini retweeted
Návrh státního rozpočtu 2027 přináší naprostou devastaci podmínek pro excelentní vědu. Pokles výdajů meziročně o 65 %, konec programu ERC CZ ve stejné době, kdy řada jiných zemí EU tento typ podpory, ve kterém jsme byli průkopníky, zavádí.
6
11
7
75
4,823
Replying to @DrAnneCarpenter
Hi Anne, do you have any further comment on this issue, following the jury and court's finding that David was a victim of defamation (in US courts typically the most difficult civil charge to win on), as well as tortious interference, from Kristin, with likely conspiratorial behavior from Ruth Lehmann? The evidence presented against Ms. Knouse must have been truly overwhelming, as I have almost never seen a defamation case succeed. Moreover, the success of both tortious interference suggests the jury believed that without Ms. Knouse's lies, the institutions involved would not have found policy breaches.
2
4
49
2,506
Now that my is HR is quasi normal, so many thanks to the global village that saved me. I would not be here without the kindness of friends, vast majority of lab members, scientific community, & strangers who reached out. And my parents, brother, ex-wife, son & extended family. ♥️
14
26
562
18,466
David M. Sabatini retweeted
🚨 DAVID M. SABATINI — FROM A POTENTIAL NOBEL LAUREATE TO NEARLY SIX YEARS OF PROFESSIONAL DESTRUCTION AND PERSONAL SUFFERING $6 MILLION IN DAMAGES — BUT WHO CAN RESTORE NEARLY SIX LOST YEARS OF AN EXCEPTIONAL SCIENTIST'S LIFE? @DMSabatini was once among the world's most celebrated biomedical scientists. His pioneering discovery of the mTOR signaling pathway transformed our understanding of cellular growth, metabolism, aging, and cancer. By 2018, he was being discussed as a promising candidate for a future Nobel Prize. In 2020, he received the prestigious Sjöberg Prize from the Royal Swedish Academy of Sciences. Then, his world began to collapse. Late 2020–2021: In October 2020, Kristin Knouse accused Sabatini of sexual harassment. Whitehead then ran an institute-wide climate survey. These steps led to an outside investigation.* * Participation from Sabatini’s lab (~40 people) was low — roughly five responses. Some lab members later said investigators pressured them to give negative accounts. August 20, 2021: The investigation found Sabatini violated Whitehead’s policies on sexual harassment and relationships. He resigned from the Whitehead Institute, was fired by HHMI, and was placed on leave by MIT. April 1, 2022: He resigned from MIT after officials recommended revoking his tenure. Later that month NYU considered hiring him; organized campus protests followed and he withdrew in early May. A scientist who had spent decades building an extraordinary research career was suddenly confronted with professional isolation, public condemnation, lost opportunities, and the dismantling of the institutional foundations supporting his research. The damage extended far beyond his appointments. It consumed years of his life, disrupted his scientific contributions, and subjected him to an ordeal whose personal consequences cannot be measured in financial terms. OCTOBER 16, 2026 — THE VERDICT After nearly six years of controversy and five years of litigation, a Massachusetts civil jury found that his former colleague, Kristin Knouse, had DEFAMED HIM AND TORTIOUSLY INTERFERED WITH HIS PROFESSIONAL RELATIONSHIPS, rejected her counterclaims, and awarded Sabatini $6 MILLION IN DAMAGES, with additional interest. His first public reaction was devastating in its simplicity: “Today I smiled for real for the first time in more than 5 years.” ⚠️ SIX MILLION DOLLARS? What monetary award can compensate for nearly six years of suffering, professional exclusion, shattered opportunities, and the interruption of a potentially Nobel Prize–winning scientific career? Money cannot return lost years. It cannot undo the anguish. It cannot recreate the discoveries that might have been made, the students who might have been trained, or the scientific advances that might have emerged. 🔱 SCIENCEGUARDIANS™ — THE ANATOMY OF A COORDINATED REPUTATION-DESTRUCTION CAMPAIGN Between May 25 and 31, 2026, ScienceGuardians™ published its seven-part investigative series exposing the mechanisms through which academic leaders can be subjected to systematic reputation destruction (🔗 see the link to the full investigative thread in the first comment): Target Selection → Recruitment of Insiders → Weaponization of Partial Truths → Media Amplification → Institutional Pressure → Reputation Collapse → Forced Resignation. The chronology of Sabatini's ordeal reveals disturbing parallels with all seven stages of the coordinated reputation-destruction framework exposed by ScienceGuardians™. For years, ScienceGuardians™ has been investigating the activities of the perpetrators we have identified within the PubPeer “PubSmear” Network Mob, alongside the damaging role that reckless or compromised journalists and editors can play in academic reputation-destruction campaigns. We are examining the extent to which these external actors contributed to the public narratives and institutional pressures surrounding Sabatini's case. Their specific involvement and any coordination must be established through documentary evidence, and our investigation will continue to scrutinize these questions. ⚠️ Malicious reputation attacks and compromised journalism are among the gravest threats to academic integrity. When allegations are amplified without sufficient scrutiny, the resulting institutional consequences can become irreversible long before the underlying facts are fully tested. The Sabatini verdict is a powerful reminder that accusations are not convictions, public condemnation is not due process, and reputational destruction is not scientific integrity. We stand firmly for the right of every scientist to fair treatment, independent scrutiny of allegations, and meaningful accountability when defamation is established. David M. Sabatini has won a significant legal victory. But no jury can give him nearly six years of his life back—or restore to humanity the invaluable scientific contributions he might have made during those lost years. @SciGuardians 🔱
Today I smiled for real for the first time in more than 5 years. Thank you to the jury, judge, court officer and clerk. And of course to my rockstar legal team. I truly wish the best for everyone involved.
26
157
14
746
61,064
David M. Sabatini retweeted
🎉 One of the Czech Republic’s most distinguished chemists and a longtime scientist at IOCB Prague is celebrating his 80th birthday today! Professor Pavel Hobza is an internationally renowned pioneer in theoretical and computational chemistry.
1
1
1
13
1,386
David M. Sabatini retweeted
David’s life’s work was a disposable prop for MIT to market its virtue to a woke audience. Some are even arguing that David deserved to lose his career because he was romantically involved with a woman in the workplace. That is an absurd and hypocritical justification for what MIT did to him. Reducing the destruction of his career to a workplace relationship policy violation is grotesque hypocrisy. A romantic relationship at work is an ordinary part of academic life for administrators and an excuse for destroying a laboratory when it involves someone they don’t like. His relationship with Knouse even began before Whitehead updated its relationship policies in August 2018. If a workplace relationship warrants professional destruction, MIT and all universities, for that matter, have a great deal of firing to do. Erin O’Shea, who was instrumental in firing David from HHMI, dated and married someone who earned his PhD in her own laboratory. Ruth Lehmann, who forced David out of Whitehead, has a long-time partner who was a fellow scientist at NYU, where she worked. MIT’s president, Sally Kornbluth, is married to an MIT biology professor. These administrators know perfectly well that scientists form romantic relationships within their professional communities. Scientists spend enormous portions of their lives in their laboratories and around other scientists. They develop relationships within that world because they devote themselves to their craft and have little social life outside it. Universities know this, and so do their administrators. The court also rejected Knouse’s claim that she experienced quid pro quo sexual harassment from David. The court found that David did not condition professional benefits or consequences based on sex. She directed her own lab and she went on to obtain a tenure-track position at MIT. Invoking a poorly defined “power imbalance” does not erase the court’s rejection of her claim. people.com/mit-scientist-dav…
9
36
4
348
58,249
David M. Sabatini retweeted
So thrilled to be on this list! Congratulations to our lab, past and present. And thank you to mentors and role models @DanaFarber, @harvardmed, @JohnsHopkins, and colleagues in biology and academic pathology. Looking forward to celebrating and continuing my work with you! 🎉
14
2
132
5,266
David M. Sabatini retweeted
It maps throughout three #Cachexia stages -as defined in humans (Pre-CAC, Early-CAC and Late CAC), the evolution of #Polar and #Lipid metabolic networks in 10 different tissues in both #Male and #Female mouse models of pancreatic CAC.
1
3
6
679
Will never forget when @SnoozyWeiss first contacted me to ask if I could speak to her about happened. Her investigation was the first truly independent look at what actually happened.
When I first met David, a world-class molecular biologist whose name was being floated for the Nobel Prize, he was collecting unemployment. As of last week, he's been cleared by of wrongdoing and awarded $6,000,000 in damages. Read my story about him: thefp.com/p/he-was-a-world-r…
5
55
2
710
31,120
David M. Sabatini retweeted
When I first met David, a world-class molecular biologist whose name was being floated for the Nobel Prize, he was collecting unemployment. As of last week, he's been cleared by of wrongdoing and awarded $6,000,000 in damages. Read my story about him: thefp.com/p/he-was-a-world-r…
The reputational destruction of Prof. David Sabatini was one of the worst excesses of the Great Awokening / Me-Too era. @BillAckman acted bravely in offering him support when the entire academic establishment cancelled him. Without his efforts, the complete absence of due process in his treatment by @MIT might never have come to light. The question I am left with: Will those whose misconduct has finally been exposed pay anything like the price they imposed on Sabatini? Will they be fired? Will their reputations be destroyed? They deserve it. He did not.
25
143
5
1,526
126,228
Even better stated
Science magazine’s account is riddled with inaccurate and misleading reporting. Start with the verdict. The jury awarded David $500,000 for defamation, $3.2M for interference with contractual relationships in a category explicitly naming MIT et al., and $2.3M for interference with prospective professional relationships. It rejected Knouse’s claims of sexual harassment, hostile workplace and educational environments, and retaliation. These are findings in a court of law, not competing opinions to balance against the losing side’s disappointment. Of the $6M awarded, $5.5M concerned interference with David’s professional relationships. Science obscures the connection to MIT et al. and the administrators whose actions inflicted those losses. Causation was central to what David had to prove. In “but for” legalistic terminology, the losses would not have occurred without the conduct at issue. If David would have suffered the same losses anyway because of a culture survey, an investigation, or anything else independent of Knouse’s conduct, those losses could not be attributed to her interference or her words. Science never examines that implication. MIT et al.’s actions on based Knouse's behavior were how allegations became lost employment, a lost laboratory, and a lost career. Yet Science tells readers the verdict “has no direct impact on the conclusions of Whitehead’s probe.” That framing ignores the causal connection established by the interference and defamation findings and treats the institutional investigation as insulated from the verdict. Science also returns to allegations of a sexualized or “toxic” environment as something David merely denies. Knouse sued him over those allegations. The verdict form explicitly asks whether she proved a sexually hostile workplace or educational environment. The jury answered no to both. Recycling those allegations while giving the losing attorney space to attack the jury’s competence protects the institutional narrative from scrutiny. Allegations retain their authority. The verdict becomes an inconvenient opinion. MIT et al. exercised the power that destroyed David’s career. Science should scrutinize their actions with the same aggression it directed at him. Institutional prestige is not evidence, and “independent investigation” is not a magic phrase that makes the verdict disappear.
4
14
162
9,027
David M. Sabatini retweeted
Ever wondered what happens #Metabolically throughout the body when the presence of #Cancer results in life-threatening debilitating loss of #Muscle and #Fat in patients, decreasing their quality of life, and preventing them from receiving therapy they need to extend #Survival?
1
8
2
31
3,861
Thank you Silvi for this very kind comment. I've been really happy to see your lab flourishing in so many new directions from your original pioneering work on HIV RNA structure. Congratulations to you and your lab!
Replying to @DMSabatini
@DMSabatini was always kind, professional, and supportive towards me and my lab. He asked great questions in my faculty meetings that I still remember and we still work on :) He retweeted our work when we needed it the most , and told me about the @PershingSqFdn and other funding sources. I just want to say thank you for that support.
3
12
251
19,874
David M. Sabatini retweeted
The broader conclusion is that MIT and its administrators were not truthful about their actions and cannot distance themselves from the unlawful conduct that caused the damage. The tortious interference claims, proven through a unanimous verdict from a majority-female jury, make this even clearer. The jury awarded the majority of the damages on those claims, finding that Knouse unlawfully interfered with David Sabatini’s employment and prospective jobs. This further established a causal connection between her conduct and the destruction of his livelihood. The implication is that Knouse’s conduct drove the loss of his lab, his job, and future opportunities, rather than those losses occurring for unrelated reasons arising from a so-called "independent” and opaque investigation or MIT’s purported findings about his lab environment. That is the basis for calling MIT’s public explanation dishonest. It is a repudiation of the dirty tactics universities use to take out faculty they don’t like while claiming to be fair and objective. This should prompt a further reckoning with the lack of trustworthiness in our academic institutions.
MIT claimed that its actions against David were based on findings about the culture in his lab. The $6M verdict invalidates that explanation. The jury awarded David $6M for damages caused by Knouse’s defamation. This means not only that false statements were made, but that those statements were proven to have caused a huge amount of damage. A causal connection between Knouse’s statements and the harm David suffered was established in court. The damage he endured came from the actions of MIT, Whitehead, and HHMI and their authority over him. The implication of the court ruling is that those actions occurred because of the false statements, rather than for other reasons such as a vaguely defined lab culture. A “toxic work environment” is a vague, slippery, often unfalsifiable slur that can be attached to anyone directing a laboratory or any group of people. Falling back on that label was a way to hide the real reasons for their actions from the public and look good to their base. Nobody likes an abusive boss, especially students who like to protest. But I knew so many people who had worked under his supervision. They did not see him or his lab that way, even though they were not speaking publicly.
3
29
3
296
9,189
David M. Sabatini retweeted
The case of Professor David Sabatini stands as one of the most egregious examples of woke institutional excess, and its fallout extended far beyond the destruction of a single career. At the Whitehead Institute at MIT, he ran a roughly 40-person lab conducting important work in molecular biology and cell signaling. That research was abruptly terminated, costing numerous students and trainees their ongoing projects and career momentum and resulting in an untold loss of medically significant knowledge - knowledge that had been funded by the public’s taxpayer dollars. All of that was abruptly canceled when a false accusation of sexual impropriety was taken up by MIT's DEI-infected bureaucracy and a director who was on a feminist crusade to purge a leading scientist for what appears to be the crime of being a white male. The court found that the relationship was consensual and the accusations that destroyed his career came only after he ended it and moved on romantically - buyer's remorse, in other words. After five years of litigation, discovery and trial, a Boston jury has just awarded Professor David Sabatini $6 million in his defamation case against Kristin Knouse, finding that she defamed him and interfered with his career. The jury also rejected her counterclaims of coercion, harassment, and a hostile work environment. But all of this is just the first step. Many people who were involved need to be held accountable. The institutions must make this right. MIT, Whitehead, and HHMI still have questions to answer about their own handling. Investigations must look into the director of Whitehead who perpetrated this witch hunt. @NIH and @NSF should now act on the jury’s findings. Restore @DMSabatini's eligibility for federal grants. The institutional investigations that led to his removal and the later debarment effort were based on claims that a jury has now rejected as defamatory. There is no more reason to treat him as radioactive. And last but not least, bless you, @BillAckman. When almost no one in science, academia, or media would touch this case, you acted and supported him, funding his new lab so that his important work on mTOR could continue. Thank you and Dafna at NYU for standing up publicly for due process when it was so costly. I knew many of his students and colleagues who could not speak out in support of him out of fear of retribution and professional ruin. Prof. Sabatini has said that you saved his life. It is not a hyperbolic statement. Also, for every one of him, there are other men whose lives have been ruined this way. For things to change, high costs on the accuser must be imposed. cc @DrJBhattacharya @regardthefrost
Dear President Kornbluth and Chairman Gorenberg, Yesterday, as I am sure you are aware, a Boston jury unanimously found that @MIT professor Kristin Knouse defamed David Sabatini, falsely accused him of rape and sexual harassment, and tortuously interfered with his contractual arrangements including his tenure at MIT. MIT and its tenure review committee relied on Professor Knouse’s statements when it took away David’s tenure and terminated him. MIT's policies explicitly prohibit harassment, retaliation, and fabrication of claims. Falsely accusing a colleague of rape and sexual harassment and pushing for his termination under false pretenses are clearly violations of MIT policy. In light of the unanimous findings of the jury after five years of discovery, many legal motions and countermotions by both parties, and a three-week trial in Suffolk County Superior Court in Boston: Is MIT going to take away Knouse’s tenure and terminate her? If not, why not? Is MIT going to restore David’s tenure, and apologize for firing him? If not, why not? In light of what has transpired in this grave miscarriage of justice, MIT has the opportunity and the obligation to right a serious wrong here. At a minimum, the public deserves transparency into what actions MIT is taking in this case as taxpayers are major funders of MIT. Sincerely, Bill Ackman
31
238
9
2,130
100,675
One day I will learn your language :)
Replying to @DMSabatini
Honored to call you a friend, brother beast
1
2
51
8,938
David M. Sabatini retweeted
Replying to @DMSabatini
Honored to call you a friend, brother beast
2
1
11
8,375
David M. Sabatini retweeted
I’m honored to be welcomed into @theNAMedicine. I share this recognition with all the students, postdocs, and colleagues in my lab. Your curiosity, hard work, and fearlessness in tackling big questions have driven everything we have achieved. Thank you. #NAMmtg
17
5
2
141
5,863
Well stated
MIT claimed that its actions against David were based on findings about the culture in his lab. The $6M verdict invalidates that explanation. The jury awarded David $6M for damages caused by Knouse’s defamation. This means not only that false statements were made, but that those statements were proven to have caused a huge amount of damage. A causal connection between Knouse’s statements and the harm David suffered was established in court. The damage he endured came from the actions of MIT, Whitehead, and HHMI and their authority over him. The implication of the court ruling is that those actions occurred because of the false statements, rather than for other reasons such as a vaguely defined lab culture. A “toxic work environment” is a vague, slippery, often unfalsifiable slur that can be attached to anyone directing a laboratory or any group of people. Falling back on that label was a way to hide the real reasons for their actions from the public and look good to their base. Nobody likes an abusive boss, especially students who like to protest. But I knew so many people who had worked under his supervision. They did not see him or his lab that way, even though they were not speaking publicly.
3
16
359
26,187