Research integrity

Maria Fousteri, the ERC-funded western blot cheater

“The Committee concludes that serious breaches of scientific integrity have been committed by Dr. Fousteri while employed at the Leiden University Medical Center."

Maria Fousteri is a highly successful Greek molecular cell biologist who studies the molecular mechanisms of DNA damage repair in human cells and their protective roles “against mental dysfunction or cancer”. Her works in the field of nucleotide exchange repair and epigenetic chromatin remodelling, done at the Leiden University Medical Center (LUMC) in the Netherlands in the department led by the LUMC professor Leon Mullenders, appeared in elite journals such as Molecular Cell.  These publications, described to me by a leading DNA repair researcher as “definitely major papers in the field” consequently helped Fousteri to an ERC starting grant of €1.5 Million for her research project “TransArrest” in 2012. Her young ERC-funded lab is located at the Biomedical Sciences Research Center “Alexander Fleming”in Greece, 20 km south of Athens.

The economic crisis-struck Greek science community should surely be rejoicing about such success of their returning top-scientist, with the most prestigious EU funding award from the ERC in tow. Instead, Fousteri’s colleagues at Alexander Fleming recently learned that a LUMC investigation found her guilty of data manipulations and research misconduct in 5 publications. Once again, it is about western blots. Images were re-used in unrelated context, lanes spliced and occasionally even bands duplicated inside a continuous gel image. The DNA nucleotide exchange repair specialist Fousteri seems to be just as professional in exchanging of western blot bands. These are the five papers, the first four (all in Molecular Cell) were recommended for retraction:

  1. Maria Fousteri, Wim Vermeulen, Albert A. van Zeeland, Leon H.F. Mullenders

Cockayne Syndrome A and B Proteins Differentially Regulate Recruitment of Chromatin Remodeling and Repair Factors to Stalled RNA Polymerase II In Vivo

Molecular Cell 2006, DOI:

2. Jill Moser, Hanneke Kool, Ioannis Giakzidis, Keith Caldecott, Leon H.F. Mullenders, Maria Fousteri

Sealing of Chromosomal DNA Nicks during Nucleotide Excision Repair Requires XRCC1 and DNA Ligase IIIα in a Cell-Cycle-Specific Manner

Molecular Cell 2007 DOI:

3. Roy Anindya, Pierre-Olivier Mari, Ulrik Kristensen, Hanneke Kool, Giuseppina Giglia-Mari, Leon H. Mullenders, Maria Fousteri, Wim Vermeulen, Jean-Marc Egly, Jesper Q. Svejstrup

A Ubiquitin-Binding Domain in Cockayne Syndrome B Required for Transcription-Coupled Nucleotide Excision Repair

Molecular Cell 2010 DOI:

4. Tomoo Ogi, Siripan Limsirichaikul, René M. Overmeer, Marcel Volker, Katsuya Takenaka, Ross Cloney, Yuka Nakazawa, Atsuko Niimi, Yoshio Miki, Nicolaas G. Jaspers, Leon H.F. Mullenders, Shunichi Yamashita9, Maria I. Fousteri, Alan R. Lehmann

Three DNA Polymerases, Recruited by Different Mechanisms, Carry Out NER Repair Synthesis in Human Cells

Molecular Cell 2010 DOI:

5. Therina Theron, Maria I. Fousteri, Marcel Volker, Lorna W. Harries, Elena Botta, Miria Stefanini, Mitsuo Fujimoto, Jaan-Olle Andressoo, Jay Mitchell, Nicolaas G. J. Jaspers, Lisa D. McDaniel, Leon H. Mullenders and Alan R. Lehmann

Transcription-Associated Breaks in Xeroderma Pigmentosum Group D Cells from Patients with Combined Features of Xeroderma Pigmentosum and Cockayne Syndrome

Mol. Cell. Biol. 2005 DOI: 10.1128/MCB.25.18.8368-8378.2005

LUMC published the results of the investigation on their website on June 16th 2016. Especially the first paper, Fousteri et al 2006, proved to contain many instances of deliberate data manipulation (see details below). But also the other papers offered enough evidence of misconduct to warrant retractions.

DNA damage001

Fouseri’s name and her publications were blackened out in the publicly available report version, a decision by the Netherlands Board on Research Integrity (LOWI) made sure the unblackened version will only be distributed to a small circle of recipients, including Fousteri’s coauthors, the editors of Molecular Cell who were asked to retract the Fousteri et al 2006 and Moser et al 2007 papers, and also her current host institute in Greece 

Babis Savakis, president and scientific director of the “Alexander Fleming”, replied to my inquiry about Fousteri misconduct investigation at LUMC as follows:

“Fleming is aware of this case and is currently looking into it. We will arrive to a decision after a careful and thorough review has been completed. Until then, as a matter of policy, we cannot make any comments”.

Fousteri was reported for suspicions of misconduct by her former LUMC colleagues already in 2011, according to the published report. The evidence was overwhelming, the only questions remaining were as to who exactly had faked the figures. Soon Fousteri herself admitted having manipulated data in one of her publications, yet instead of retracting that paper, she retracted her admission of fraud. As the result, an internal investigation by the LUMC department concluded in January 2014 that “there was no definite proof of a breach of scientific integrity by the defendant, given the complexity of the research”. The decision was appealed, and this new external investigation by LUMC came to a different conclusions:

“The Committee concludes that serious breaches of scientific integrity have been committed by Dr. Fousteri while employed at the Leiden University Medical Center. Following the listing of scientific misconduct as given in 1.2, this falls under a. falsification of data and h. acting unacceptably inaccurate in performing research. With reference to the LUMC Code of Conduct for Scientific Integrity (Regeling Wetenschappelijke Integriteit LUMC) it is considered scientific misconduct to wilfully manipulate research results to make them look better. Given the large number of instances in which figures were manipulated, which took place in several publications over a period of several years, and which have grievously misled readers, the Committee concludes that this constitutes a serious breach of scientific integrity. The Committee concludes that several publications need to be retracted. […]

It should be noted that the Committee has only been able to investigate a minority of the data that were presented in the publications, since in many instances primary data were lacking or not properly archived. The Committee did also not investigate unpublished data that were used in scientific presentations. Multiple instances of data manipulation have been found in all five publications that the Committee has investigated. These are clearly most numerous in two publications  (1,2) [Fousteri et al 2006 and Moser et al 2007, -LS], which originated from the LUMC, that will need to be retracted. In two other publications the manipulations were less numerous (3,4), [Anindya et al 2010 and Ogi et al 2010, -LS] but still of a nature that the Committee believes retraction is in order. However, since these publications did not originate from the LUMC, which only provided part of the experiment, the Committee advises further action to be taken by the institutes in the United Kingdom, where the main responsibility for these publications lies. Finally, although not the result of acceptable practice, the irregularities in the fifth paper (5) [Theron et al 2005, -LS], for which the main responsibility also resided at another institution, led the Committee to suggest a correction to be sent to the journal in which the manuscript was published”.   

Alan Lehmann, professor for molecular genetics at the University of Sussex in UK and last author of the Ogi et al 2010 and Theron et al 2005 papers with Fousteri-manipulated data, commented to me as follows:

“The University of Sussex is conducting its own independent investigation. When this is concluded I will discuss with Molecular Cell the appropriate action to be taken with regard to the Ogi et al paper”.

Fousteri’s former head of department Mullenders did not reply to my emails. According to the LUMC report, he told the investigators that “due to this autonomous activity of the defendant, he did not see the original experimental results, and therefore did not oversee the construction of figures from these for publications and presentations”.

Though Fousteri was found to be alone responsible for all data manipulations, Mullenders was anything but a hapless victim of her crimes. In fact, he was assigned part of the blame for his leadership style, and consequently retired as head of department (as indicated by the LUMC report). His name is not listed on the department website anymore, though he remains associated with LUMC, according to phone directory.  This is what the investigators decreed about Mullenders:

“The section in which Dr. Fousteri worked had no uniform way of guaranteeing the integrity of research, and there was no protocol in which standards and procedures were described. Generally accepted archiving processes, such as keeping a laboratory journal, were not always followed, although some individuals did so meticulously. The head of the section could have been aware of this, and professed a belief in adequate archiving to the Committee, but has not enforced it. There was no policy with regard to experimental validation of results, no critical discussion of the selection of primary data for inclusion in manuscripts. Generally, it seems the concept of falsification did not exist: Hypotheses became biological truths, and experiments were considered successful when they confirmed the hypotheses. The Committee concludes that the lack of adequate procedures, and the lack of enforcing of generally accepted procedures, as well as a general uncritical attitude have contributed to the breaches of scientific integrity. […]

Several PhD students who worked in the Department’s section suffered by Prof. Mullenders and Dr. Fousteri did not complete their PhD, which in one case was directly related to the scientific misconduct reported here, as well as in unpublished experiments that have not been investigated by this Committee, and in one case was likely to be related to the way in which the leadership of the section operated”.

The previous history of Fousteri’s Dutch PhD students makes it a matter of serious concern for the future of her current lab members. Presently, the misconduct -tainted group leader supervises five PhD students in her Flaming lab, plus four postdocs.

What about Fousteri’s ERC funding? According to their report, the investigators notified also the funding agencies associated with the manipulated papers. This mean that the European Commission, which supported Fousteri-Mullenders work though the FP6 funding programme, was informed about Fousteri’s misconduct. The ERC however, though directly associated with the European Commission,  denied any knowledge in their communication to me:

“The ERC Executive Agency was not aware of the information mentioned in your email and we will assess it”.

Also the Fleming director Savakis declared in this regard:

“We are aware of ERC policy regarding scientific misconduct and we will notify the ERC when we arrive to a decision”.

With such schedule, ERC is unlikely to even consider terminating Fousteri’s undeservedly obtained funding. With their other misconduct cases, ERC was not necessarily in any hurry to block the money waste. Especially since Fousteri’s EU support is scheduled to end in October 2017 anyway, little can be expected also here. Another elite research project will be concluded and become just another EU statistic.

There can be however another interesting twist to this story, since all four papers to be retracted appeared in Molecular Cell at Cell Press. Their editorial offices are ultimately controlled by the Cell Editor-in-Chief Emilie Marcus, who displayed in many instances a mind-bogglingly tolerant (if not welcoming) attitude to research misconduct (for details, see my report here). It would therefore be hardly surprising if the retractions requested by the Dutch investigation and possibly also its Greek and British counterparts would not be forthcoming, at least as long as Fousteri opposes them.

This is what the LOWI-adviced LUMC investigation found in Fousteri et al 2006 alone, accompanied by my own illustrations (copyright, naturally, with Cell Press/Elsevier):


“0. Duplication of Fig. 1C CSA, right two lanes (normal) and Fig. 1B CSB, soluble fraction, right two lanes.

  1. Duplication of Fig. 1D RNAPIIo, pellet blot and Fig. S2C RNAPIIo blot.
  2. Duplications of part of Fig. 1D and Fig. S2D
  3. Duplications of part of Fig. 1B and Fig. 2SA.
  4. Duplications of part of Fig. 1D and Fig. S2A.
  5. Duplications of Part of Fig. 2A and Fig. 4A.
  6. Reuse of part of Fig. 3D top panel in Fig. 3E top panel.
  7. Possible duplication of images in Fig. 3A top panel and Fig. 5A, top panel.
  8. Duplications of part of Fig. 3D and Fig. 5C.
  9. Fig. 4D. CSB Panel Appears put together in an unusual way.
  10. Fig. 5C. P300 panel, tied in untreated normal and untreated CSA cell appear to be identical (mirror image).
  11. Fig. S2C and S2D, CSB panels are the same, albeit with different exposure.
  12. Fig. S2C and S2D, RPA panels are the same, albeit with different exposure.
  13. Fig. S2C and S2D, XPF panels are the same, albeit with different exposure.
  14. Fig. S2A and S2B, CSB panels appear the same. 15. Fig. S2C and S2D, RPA panels are the same, albeit with different exposure.
  15. Fig. S2A, lanes 1 and 4 are duplicated.
  16. Fig. S2A and Fig. S2B top panels are duplicated.
  17. Fig. S2D, duplication of two adjacent bands.
  18. Duplication of Fig. 5C (Fousteri et al, 2006) into Fig. 4A (Moser et al., 2007)”fousteri2

Update 2.02.2023

I noticed LUMC removed the online report, the hyperlink I used above is broken now. So here it is:

Two of these papers were retracted 6 years later, following this exposure:

Fousteri affair: Dutch integrity thwarted by academic indecency

Two and a half years after Maria Fousteri was found guilty of scientific misconduct by her former employer, the Leiden University Medical Center (LUMC), exactly nothing at all happened. ERC and Molecular Cell ignored LUMC letters from June 2016, while Fouster’s British co-authors interfered to save own papers. Of 4 scheduled retractions, none took place.


I thank all my donors for supporting my journalism. You can be one of them!
Make a one-time donation:

I thank all my donors for supporting my journalism. You can be one of them!
Make a monthly donation:

Choose an amount


Or enter a custom amount

Your contribution is appreciated.

Your contribution is appreciated.

DonateDonate monthly

19 comments on “Maria Fousteri, the ERC-funded western blot cheater

  1. The report was written September 1, 2015, but the articles are still not retracted or marked with an “expression of concern”. Why? This junk science is still cited and the dogmas grow even stronger!
    Do you have access to the uncensored report? If so, I will comment on this at PubMed via PubMed Commons. I am afraid the censored report is not strong enough evidence to justify a comment.


  2. This is interesting. I have in two occasions commented on articles that should have been retracted due to a publicly available report from the investigation. They were not changed nor banned.
    My experience is that they do not allow comments on suspicion of misconduct, but if there are evidence and an available report they will let it through. It is also important how you present it. In my comment I warned the readers and put a link to the report, and recommended not to cite the articles.

    Using PubMed Commons should be an efficient way to stop citations of work that is not trusted, so I hope we could still use this channel.

    Do you know if it could be possible to get the above mentioned report uncensored?


    • LUMC now confirmed that I named the right person and the right papers. The also for some reason chose not to inform ERC of their investigation.
      I previously reached out to Mullender’s LUMC department colleague and close collaborator Harry Vrieling. Instead, I received today a reply from the LUMC press communication officer Niels Pols:

      “Thanks for your questions. Your mail to dr. Vrieling was forwarded to me. I saw you already published the article, but hereby our answers.
      ‘We informed all funds who contributed to the investigated articles, the ERC was not a part of these funds. Of course we also asked the journals to retract all papers which we investigated’.”


      • Another statement from LUMC spokesperson Pols, as answer to my inquiry why ERC was not informed of Fousteri’s misconduct:

        “We only reviewed the articles which the author published while being employed at the LUMC, or shortly before. Therefore we could of course only inform those sponsors that contributed to the work reported in those publications. The ERC did not contribute to that work, and no grant from the ERC was awarded to the defendant during employment at the LUMC, so we were not in the position to inform the ERC, particularly since LOWI asked us to be specific in whom we informed. We did inform, however, with the full report, other institutions to which the author moved after employment at the LUMC, and recommended them to set up their own investigation. For your other question: Prof Mullenders indeed retired in 2014 after reaching the age of retirement”.


  3. In case you want to consider this option, at you can post not only comments, but write a full review, incl. attached images or files. The authors of the review are responsible for the content. Of course there are ToU one should stick to, but in principle the content stays online until someone complains in which case we look into the matter.

    It’s worth noting that this post-publication review feature didn’t gain much traction since we launched it, but in case someone is interesting in posting reviews to inform the community of misconduct, then we are all for it.

    PS: The whole thing is non-profit, of course.


  4. A short time table of the events.

    (1): a PhD student and a technician report suspicions of irregularities in the work of Maria Fousteri to the head of the Department in March 2011.

    (2): the head of the Department reports these issues in the work of Maria Fousteri to the Dean on 20 June 2011.

    (3): an ad-hoc Committee of Leiden finds irregularities but no definite proof of a breach of the scientific integrity by Maria Fousteri.

    (4): the Board of LUMC accepts the findings of this ad-hoc Committee in a preliminary decision dated 10 January 2014.

    (5): the former PhD student is not satisfied with this preliminary decision. He goes to LOWI for an appeal. LOWI has investigated this case and advises the Board to re-open this case and to conduct a thorough investigation. This LOWI advice is at (in Dutch).

    (6): The Board accepts this advice from LOWI and asks on 20 November 2014 to the LUMC Committee on Scientific Integrity to start with this investigation.

    (7): The LUMC Committee on Scientific Integrity presents on 1 September 2015 their findings to the Board. This report is at

    (8): The Board accepts the findings and the recommendations of the report in a preliminary decision dated 18 September 2015.

    (9): Maria Fousteri is not satisfied with the contents of the preliminary decision and files an appeal at LOWI on 12 November 2015. LOWI has once again investigated this case and their advice is at (in Dutch). LOWI has dismissed all rebuttals of Fousteri. LOWI agrees with the Board of Leiden that the report of the LUMC Committee is solid. LOWI advises to anonymize the report and to restrict the distribution of the unanonymized version of the report. This LOWI advice is dated 23 May 2016.

    (10): The Board accepts the recommendations of LOWI in a final decision dated 13 June 2016. This final decision is at This formal decision was sent to Maria Fousteri which implies that Maria Fousteri still has an account.

    (11): the 2016 advice of LOWI provides much details about the views of Maria Fousteri.

    (12): within the Dutch system, an anonymized version of the final decision must be published on the website of the University (and/or on the website of VSNU at ). It is up to the universities to decide to publish a full version of the report and/or of the final decision.

    (13): There is within the Dutch system no obligation for the universities to make public statements when there is not yet a final decision. The entire investigation (which includes the possibility of an appeal at LOWI) is thus confidential as long as there is not yet a final decision by the Board.


  5. Ana Pedro

    It is amazing how often WB’s results are falsified in publications. This makes us think if the WB is still an appropriate research tool: it is time-consuming (compared to ELISA) and has a high demand in terms of experience of the experimenter. Additionally, it requires optimizing the experimental conditions (i.e. protein isolation, buffers, type of separation, gel concentration, etc.). In addition, other methods such as ELISA and quantitative mass spectrometry are much more precise and accurate although still perhaps more expensive.
    Does really nowadays WB results worth something?


  6. Hi LS
    Just a litte nitpick: your paper 2. is missing the last author. The Accused!

  7. This western blot thing (whatever is that) seem to be unique tool to expose cheaters in few research fields. Why is that so difficult to make original instead duplicated ones? I regret also that cheaters can’t be exposed in other research fields where this fantastic method is not used. I wish that any research field had similar methods but, unfortunately, in many cases cheaters can simply multiply 1-2 numbers to make ordinary result into discovery. And to sleep well after that at no risk to be exposed….


    • Ana Pedro

      That is a good question…we can ask the several WB cheaters being commented in this blog.


  8. Pingback: Does ERC help cheaters pay protection money? – For Better Science

  9. Unfortunately, research misconduct is not only a question of picking up WB or IF images duplications, etc. Many times research misconduct is related with data fabrication and this is more difficult to check as many times access to original data is difficult and paper figures can be false but be “politically” correct.


  10. Following up: a year and a half after the official notice, no paper has been retracted (at least to my knowledge ), nothing happened with the ERC funds, the BSRC Fleming Institute has yet to announce the findings of its independent committee (at least to the best of my knowledge) and Dr. Fousteri just published in Nature Communications (


  11. Pingback: Janine Erler dossiers which ERC does not want – For Better Science

  12. Pingback: Abderrahmane Kaidi leaves Bristol after misconduct findings – For Better Science

  13. Pingback: Fousteri affair: Dutch integrity thwarted by academic indecency – For Better Science

  14. This unfortunate but what about

    Same person gets two ERC contracts

    Members of the ERC have grants

    Bad evaluation procedures



Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: