Press releases

Whether it is new and groundbreaking research results, university topics or events – in our press releases you can find everything you need to know about the happenings at Goethe University. To subscribe, just send an email to ott@pvw.uni-frankfurt.de

Goethe University PR & Communication Department 

Theodor-W.-Adorno Platz 1
60323 Frankfurt 
presse@uni-frankfurt.de

 

Jul 6 2023
09:00

Researchers at Goethe University Frankfurt are examining how tumors reprogram their environment

Partners in crime: How communication in the tumor microenvironment influences tumor development

For solid tumors to grow efficiently, they generally need the help of non-transformed, endogenous cells around them. Through the communication of these cells between each other, networks form in the tumor's environment which stimulate growth. With the support of the Wilhelm Sander Foundation, researchers at Goethe University Frankfurt have now examined such networks. In the process, they discovered that these networks are very resistant to intervention, but the team also succeeded in identifying possible weak points. 

Tumors consist of both the actual, malignant cancer cells and healthy, non-transformed cells in the immediate environment. These include, among other things, the endogenous scavenger cells of the immune system, called macrophages, as well as types of cells that form connective tissue, such as fibroblasts. Both macrophages and fibroblasts normally contribute to keeping tissue in its original healthy state and to restoring its structure after minor or major damage. These capabilities also play an important role in defending the body against the proliferation and spread of cancer cells. 

However, cancer cells have developed strategies to reprogram both macrophages and fibroblasts into tumor-promoting cells. In this process, the fibroblasts are altered in such a way that they change the tissue structure so that it helps the tumor cells to survive and spread. For example, if metastases form in the lung, the fibroblasts in the lung are activated first. Macrophages secrete growth and survival factors, which the tumors use, for example, to give themselves a better supply of nutrients and oxygen. 

It has long been assumed in cancer research that the deactivation of specific, non-transformed types of cells might be enough for therapy to be successful. However, despite the promising results achieved in research such strategies have so far hardly been successful in the treatment of patients. 

A research team led by Professor Andreas Weigert and Professor Bernhard Brüne from Goethe University Frankfurt has now identified possible reasons for this. For their analyses, the researchers used genetically modified mice that spontaneously develop tumors in their breast tissue. Through further genetic modifications, a fat-like molecule produced by the macrophages and released into the tumor environment, the hormone prostaglandin E2, was deactivated in the mammary carcinoma of these mice. Prostaglandin E2 was previously believed – on the basis of cell culture experiments – to have above all tumor-promoting properties. As expected, deactivating prostaglandin E2 also inhibited the growth of mammary carcinoma in the mice. To the surprise of the research team, however, tissue analyses showed that the fibroblasts divided extensively and were activated, and at the same time more metastases developed in the lungs of the mice. 

In further trials, the transcriptome of the fibroblasts was analyzed, that is, all the genes read from the genome at that point in time. The researchers were able to show that prostaglandin E2 keeps the fibroblasts in mammary carcinoma in an inactive state by means of a previously unknown signaling pathway, which explains why removing the molecule in the mice led to increased metastasis. The process is evidently similar in humans: Fibroblasts activated in a similar way were also found in the breast tumors of some patients, and these patients were far less likely to survive. 

In the course of their histological study of mammary carcinoma, the researchers also encountered a subgroup of macrophages which, similar to fibroblasts, produce parts of the extracellular matrix (the connective tissue between the cells) – above all collagens. Such macrophages, called fibrocytes, were already known from fibrotic disorders (pathological proliferation of connective tissue) of the lung, but their role in tumors was unclear. 

That is why the researchers in Frankfurt, together with Professor Rajkumar Savai from the Max Planck Institute for Heart and Lung Research in Bad Nauheim, examined the role of fibrocytes in lung tumors by systematically deactivating them during tumor growth. By means of single-cell sequencing, they were able to corroborate, among other things, that these cells are a key population which coordinates both the growth of the tumor cells and their supply with blood vessels as well as the tumor-promoting activation of other macrophage subtypes. 

“The results of our studies illustrate that there are many types of cells in the tumor microenvironment that promote tumor survival, growth and spread in a similar way. The tumor uses central molecular hubs through which it simultaneously reprograms various endogenous cells into tumor promoters. If we want to fight cancer effectively, we need to advance the detection and therapeutic use of such hubs," says Weigert, summarizing the study results, which were published in the renowned journals Cancer Research and Nature Communications. Identifying such hubs will be a research priority for the participating laboratories in the future. 

Publications:
1) E. Strack, P.A. Rolfe, A.F. Fink, K. Bankov, T. Schmid, C. Solbach, R. Savai, W. Sha, L. Pradel, S. Hartmann, B. Brüne, A. Weigert. Identification of tumor-associated macrophage subsets that are associated with breast cancer prognosis. Clin Transl Med (2020), 10:e239. https://doi.org/10.1002/ctm2.239
2) E. Elwakeel, M. Brüggemann, J. Wagih, O. Lityagina, M.A.F. Elewa, Y. Han, T. Froemel, R. Popp, A.M. Nicolas, Y. Schreiber, E. Gradhand, D. Thomas, R. Nüsing, J. Steinmetz-Späh, R. Savai, E. Fokas, I. Fleming, F.R. Greten, K. Zarnack, B. Brüne, A. Weigert. Disruption of prostaglandin E2 signaling in cancer-associated fibroblasts limits mammary carcinoma growth but promotes metastasis. Cancer Res. (2022), 82(7):1380-1395. https://doi.org/10.1158/0008-5472.can-21-2116
3) A. Weigert, X. Zheng, A. Nenzel, K. Turkowski, S. Günther, E. Strack, E. SiraitFischer, E. Elwakeel, I.M. Kur, V.S. Nikam, C. Valasarajan, H. Winter, A. Wissgott, R. Voswinkel, F. Grimminger, B. Brüne, W. Seeger, S. Savai Pullamsetti, R. Savai. Fibrocytes boost tumor-supportive phenotypic switches in the lung cancer niche via the endothelin system. Nat Commun. (2022), 13:6078 https://doi.org/10.1038/s41467-022-33458-8 

Picture download: https://www.uni-frankfurt.de/139734297 

Caption: Tissue section of a lung tumor showing different cells in the tumor microenvironment: macrophages (red), collagen-producing macrophages or fibrocytes (yellow), fibroblasts (green). Photo: Institute of Biochemistry I, Faculty of Medicine, Goethe University Frankfurt 

Further information:
Professor Andreas Weigert
Professor for Biochemistry of Innate Immunity
Institute of Biochemistry I
Faculty of Medicine
Goethe University Frankfurt
Theodor-Stern-Kai 7
60590 Frankfurt am Main
Tel.: +49 (0) 69 6301 4593
weigert@biochem.uni-frankfurt.de


Editor: Markus Bernards, PhD, Science Editor, PR & Communication Office, Theodor-W.-Adorno-Platz 1, 60323 Frankfurt am Main, Tel: +49 (0) 69 798-12498, Fax: +49 (0) 69 798-763 12531, bernards@em.uni-frankfurt.de.

 

Jun 30 2023
08:28

Together with cooperation partners, researchers from Goethe University Frankfurt are analyzing knowledge gaps and making recommendations

How the use of chemicals and biodiversity loss are connected

Science does not take a deep enough look at chemicals in the environment as one of the causes of the decline in biodiversity. Forty scientists in the RobustNature research network of Goethe University Frankfurt and collaborating institutes have corroborated this in a study that has now been published in the journal “Nature Ecology and Evolution". The researchers regard an interdisciplinary approach as a new opportunity to better understand biodiversity loss in order to be able to take more efficient countermeasures. To this end, they are studying the interactions between chemical pollution and biodiversity loss. 

Declining biodiversity threatens the very basis of human life. Science contends that there are many reasons for this decline. However, while much research is being conducted into the connection between species decline on the one hand and loss of habitats, invasion by non-native species or climate change on the other, science is giving less attention to the impact of chemicals on biodiversity. A recent study by a team of researchers led by Professor Henner Hollert, Dr. Francisco Sylvester and Fabian Weichert from Goethe University Frankfurt corroborates this. 

The team has analyzed in depth the scientific literature on this topic from 1990 to 2021. According to their analysis, the very many research papers on environmental pollution through chemicals were published in only a small number of highly specialized ecotoxicological journals, in which papers on biodiversity loss are only occasionally found. “This suggests that the field is highly encapsulated, which is in stark contrast to publication behavior in relation to other causes of global biodiversity loss," says Henner Hollert. “Research on the environmental impact of chemicals is still mostly dissociated from the assessment of biodiversity loss." 

The authors call for a stronger interdisciplinary focus in research so that the impacts of chemical substances on biodiversity can be better understood and mitigated. What makes the researchers optimistic here is the fact that there have been many methodological advances in ecotoxicology and ecology in recent years. For example, with the help of state-of-the-art chemical and effect-based analytics as well as big data science it is possible to detect thousands of known and unknown substances in environmental samples at the same time. In addition, there are technologies for remote environmental monitoring, for example with satellites, as well as computer models for predicting the ecological risks of chemicals and methods for determining biodiversity with the help of environmental DNA. 

However, the scientists also see quite considerable challenges despite the interdisciplinary approach. For example, basic data are often lacking; each area under study has specific characteristics; the processes at ecosystem scale are complex. To meet these challenges, the researchers have made 16 recommendations. They suggest, for example, obligating industry to make relevant data public. Or they propose developing ecological test models that cover not only individual organisms but also populations, communities or even entire ecosystems. 

The RobustNature research network is examining the robustness and resilience of nature-society systems in the developing Anthropocene and specifically the interaction of chemical pollution and biodiversity loss. To address important questions related to human-ecosystem dynamics, RobustNature has established interdisciplinary collaboration with partners from Germany and abroad. https://www.robustnature.de/en/ 

Partners:
  • Goethe University Frankfurt (Coordination; Faculty of Biological Sciences (15) with the faculties of Law (1), Economics & Business (2), Social Sciences (3), Educational Sciences (4), Geosciences & Geography (11), Computer Science & Mathematics (12), Medicine (16) and the profile area Sustainability & Biodiversity)
  • Institute for Social-Ecological Research (ISOE) 
  • Senckenberg – Leibniz Institution for Biodiversity and Earth System Research (SGN) 
  • LOEWE Center for Translational Biodiversity Genomics (LOEWE TBG) 
  • Helmholtz Center for Environmental Research (UFZ), Leipzig 
  • Leibniz Institute for Financial Research SAFE, Frankfurt 
  • Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Schmallenberg 
  • RWTH Aachen University 
  • University of Saskatchewan, Canada 
  • ETH Zurich, Switzerland 
  • Stockholm University, Sweden 

Publication:
Francisco Sylvester, Fabian G. Weichert, Verónica L. Lozano, Ksenia J. Groh, Miklós Bálint, Lisa Baumann, Claus Bässler, Werner Brack, Barbara Brandl, Joachim Curtius, Paul Dierkes, Petra Döll, Ingo Ebersberger, Sotirios Fragkostefanakis, Eric J. N. Helfrich, Thomas Hickler, Sarah Johann, Jonas Jourdan, Sven Klimpel, Helge Kminek, Florencia Liquin, Darrel Möllendorf, Thomas Müller, Jörg Oehlmann, Richard Ottermanns, Steffen U. Pauls, Meike Piepenbring, Jakob Pfefferle, Gerrit Jasper Schenk, J.F. Scheepens, Martin Scheringer, Sabrina Schiwy, Antje Schlottmann, Flurina Schneider, Lisa M. Schulte, Maria Schulze-Sylvester, Ernst Stelzer, Frederic Strobl, Andrea Sundermann, Klement Tockner, Tobias Tröger, Andreas Vilcinskas, Carolin Völker, Ricarda Winkelmann, Henner Hollert: Better integration of chemical pollution research will further our understanding of biodiversity loss. Nature Ecology and Evolution (2023) http://dx.doi.org/10.1038/s41559-023-02117-6 

Picture download: https://www.uni-frankfurt.de/138808301 

Caption: Pesticides used in agriculture contribute to biodiversity loss. Photo: Markus Bernards 

Further information
Professor Henner Hollert
Institute of Ecology, Diversity and Evolution
Goethe University Frankfurt
and Fraunhofer Institute for Molecular Biology and Applied Ecology (IME), Schmallenberg
and LOEWE Center for Translational Biodiversity Genomics (LOEWE‐TBG), Frankfurt
Tel.: +49 (0)69 798-42171
hollert@bio.uni-frankfurt.de
https://www.bio.uni-frankfurt.de/43970666/Abt__Hollert
Twitter: @hhollert @goetheuni @LOEWE_TBG @fraunhofer_IME @isoewikom @senckenberg @UFZ_de @SAFE_Frankfurt @RWTH @USask_INTL @ETH @ETH_en @Stockholm_Uni


Editor: Markus Bernards, PhD, Science Editor, PR & Communication Office, Theodor-W.-Adorno-Platz 1, 60323 Frankfurt am Main, Tel: +49 (0) 69 798-12498, Fax: +49 (0) 69 798-763 12531, bernards@em.uni-frankfurt.de

 

Jun 29 2023
14:14

Goethe University Frankfurt signs cooperation agreement with United Nations Population Fund (UNFPA) for forensic "Identifications in Mexico" project.

Restoring the identities of Mexico’s unknown dead 

Goethe University Frankfurt entered into a cooperation agreement with the United Nations Population Fund (UNFPA) in Mexico to assist the Mexican government in identifying the country's more than 110,000 officially disappeared. At 55,000, the official figure of unidentified decedents is also staggering. The Comisión Nacional de los Derechos Humanos, Mexico's national human rights commission, has called the current situation as a forensic crisis and an enormous burden on civil society. 

Although the Mexican government is increasingly relying on international cooperation and assistance in recent years to help identify unidentified decedents, and significant progress has been made (including the construction of regional identification centers), identification remains a significant challenge. One partner is UNFPA, whose Mexican branch is a member of the “Identifications in Mexico" project (partially funded by Germany's Federal Foreign Office), which supports the Comisión Nacional de Búsqueda (CNB) search commission's national identification policy. One of the project's workplans comprises Goethe University Frankfurt's collaboration with Mexican institutions and universities. 

The signing ceremony was attended by Cecilia Villanueva Bracho, Mexican Consul General to the city of Frankfurt; Goethe University President Prof. Enrico Schleiff; the Deputy Head of UNFPA Mexico, Iván Castellanos; the Director of Goethe University's Institute of Forensic Medicine, Prof. Dr. Marcel Verhoff: and UNFPA Project Head Maximilian Murck. The goal of the cooperation agreement between UNFPA and the Institute of Forensic Medicine is to offer families certainty about the whereabouts of their loved ones. 

Specifically, the cooperation aims to develop pragmatic approaches to identify more deceased persons within a shorter period of time, including by means of: 

  • DNA analysis of relatives and unidentified decedents
  • Analysis of tattoos for identification purposes 
  • Academic exchanges and research with Mexican forensic scientists and medical examiners 

Goethe University President Prof. Dr. Enrico Schleiff emphasized the humanitarian obligation to support the Mexican government in restoring the identity of unidentified decedents, adding that the relatives of the disappeared deserve to have certainty of their loved ones' fate. Schleiff welcomed the cooperation agreement, which allows the work done to date by Frankfurt's forensic experts in identifying Mexico's disappeared to be continued. He explicitly thanked UNFPA for its support of the "Identifications in Mexico" project, as well as all scientists and doctors involved. 

Iván Castellanos, deputy head of UNFPA Mexico, emphasized that every person has the right to their identity, pointing to the important measures the Mexican government has initiated in recent years to strengthen its institutions in the search for the disappeared, as well as to the reforms passed to improve the identification of unidentified decedents. The government for the first time invited the United Nations Committee on Enforced Disappearances (CED) in 2021, he said, also expressing its compromise with the disappeared. 

For his part, Prof. Dr. Marcel Verhoff, director of Goethe University's Institute of Forensic Medicine, pointed out that the Frankfurt-based institute had already worked with the University of Guadalajara in the introduction of a master degree in forensic science, and in the analysis of genetic samples, autopsies and excavations in Mexico. The new agreement will further strengthen academic collaboration, he said, allowing both institutions to benefit from one another, adding that the knowledge exchange will be realized both in scientific projects as well as practical identification work. 

Maximilian Murck, who heads the UNFPA project, said that while identifying the dead is not an easy task, it is not an impossible one either, adding that it is important to work out common solutions and to make visible the successes of cooperation in this difficult context. One example is the introduction of fingerprint matching technology in several Mexican states – an initiative coordinated by the CNB. Murck expressed his gratitude to Goethe University as well as the Mexican institutions for their support and trust. 

Regarding the cooperation agreement signed between Goethe University and UNFPA, Cecilia Villanueva Bracho, Mexico's consul general in Frankfurt, stressed: "The Mexican government supports this project that contributes to the cooperation between Mexico and Germany in the field of forensic medicine. It also serves to strengthen institutions by enabling us to better address contemporary priorities in the fields of security, crime control and prevention. The collaboration comprises the exchange of knowledge and best practices to promote governmental and academic institutions and develop technical capacities." 

Image for download: www.uni-frankfurt.de/139269528 

Caption (from left to right): Cecilia Villanueva Bracho, Mexico's consul general in Frankfurt; Goethe University President Prof. Dr. Enrico Schleiff; Prof. Dr. Marcel Verhoff, Director of the Institute of Forensic Medicine, and PD Dr. Christoph Birnhuber.


Editor: Dr. Dirk Frank, Press Officer / Deputy Head of the PR & Communication Office, Theodor-W.-Adorno-Platz 1, 60323 Frankfurt am Main, Tel: +49 (0) 69 798-13753, frank@pvw.uni-frankfurt.de

 

Jun 22 2023
15:14

$250,000 for US research stay for the only awardee from Europe

Columbia University’s prestigious Schaefer Award goes to biochemist Robert Tampé of Goethe University

Biochemist and structural biologist Prof. Robert Tampé of Goethe University Frankfurt has received a research fellowship worth $250,000 (EUR 230,000). He was granted Columbia University's "Schaefer Scholar Award," bestowed annually on scientists for outstanding academic achievements in human physiology. One of Prof. Tampé's research projects will be supported by $200,000 during a visiting fellowship at Columbia University; he will also receive $50,000 in discretionary funding. The prize was awarded at a ceremony in New York on June 21st, 2023. 

Professor Katrina Armstrong, Chief Executive Officer of Columbia University Irving Medical Center and the university's Vice President for Health and Biomedical Sciences, congratulated Prof. Robert Tampé on the award: "We are pleased to offer you this opportunity to strengthen and expand your research. Dedicated researchers like you are absolutely necessary to further scientific discovery and medical innovation. Congratulations for this well-deserved honor, and best wishes for your continued success. We look forward to welcoming you to Columbia!" 

Together with his collaborative partner, Prof. Filippo Mancia of the Department of Physiology and Cellular Physics at Columbia University, Tampé will pursue a research project in New York to elucidate transport mechanisms within the cell that are essential for triggering an immune response. His research focuses on the endoplasmic reticulum, a complex membrane system within the cell, which, among others, produces membrane proteins that are transported to the cell's outer envelope, where they are presented to the immune system as antigens and can trigger an immune response. Tampé will study a protein complex central to this process, called the peptide loading complex (PLC), which is the target of many pathogens and cancer cells that subvert the immune response in this way. The research could result in new ways to boost the immune system against pathogens or cancer. 

Image download: https://www.uni-frankfurt.de/139045243 

Captions: 
PLC_c_ChristophThomas_RobertTampe.jpg : Structure and biogenesis of the antigen processing machinery, i.e. a dynamic assembly of transport, folding and receptor complexes responsible for the adaptive immune recognition of infected or malignant cells. Illustrations: Christoph Thomas, Robert Tampé
Tampe_Robert_c_UweDettmar.jpg: Prof. Dr. Robert Tampé, Goethe University Frankfurt. Photo: Uwe Dettmar 

Further Information:
Professor Robert Tampé
Institute of Biochemistry, Biocenter Goethe University Frankfurt, Germany
tampe@em.uni-frankfurt.de
Tel: +49 (0)69 798-29475
https://www.biochem.uni-frankfurt.de/index.php?id=10 

Twitter-Handles: @goetheuni @Columbia @tampe_lab


Editor: Markus Bernards, PhD, Science Editor, PR & Communication Office, Tel: +49 (0) 69 798-12498, bernards@em.uni-frankfurt.de.

 

Jun 22 2023
11:06

Goethe University Frankfurt strengthens systematic considerations of gender, sex and diversity in research topics 

Ten points for more diversity in science and research 

Whether it concerns biased Artificial Intelligence or misattributed graves of Viking women – gender, sex and diversity can have very differing and sometimes unexpected impacts on research. To integrate reflections on gender, sex and diversity even more strongly in its research activities, Goethe University has now published a ten-point paper. 

"Goethe University wants to be a pioneer when it comes to providing better science that is as fair as possible to as many people as possible," said University President Prof. Enrico Schleiff in summarizing the goal of the ten-point paper on gender, sex and diversity in science and research. The University's Executive Board first presented the paper and the concrete steps outlined therein at an event held on June 19, 2023, which brought together external experts and Goethe University's research community. The ten points aim to strengthen considerations on the importance of gender and diversity in various disciplines. For example, it states: "In its mission statement, Goethe University Frankfurt acknowledges the social responsibility of research and teaching, including the need to align science with the requirements of as many people as possible, and to integrate different perspectives." 

"Every researcher should ask themselves: to what extent do aspects related to gender, sex and diversity play a role in my research? Not just because these considerations are becoming more important for project proposals, but because we are convinced that doing so will produce more valid research results. By becoming more aware of this, and exchanging knowledge and insights on the topic, our research will become both more innovative and more creative," Schleiff said a press briefing held on June 21, 2023, during which the ten-point paper was presented. In addition to describing the status quo, the paper outlines concrete measures and goals aimed at further improving inclusion in the future. As such, the university not only plans to anchor the topic in the next university development plan, but also calls for a stronger reflection of these aspects in internal calls for proposals. In addition, they should also be more firmly integrated in training and continuing education. 

Nothing better illustrates to laypersons the importance of the topic than examples from medical research: If medications are not tested in a manner that is both equal and differentiated on women and men alike, they will be difficult to apply correctly. Dr. Lena Marie Seegers and Prof. David Leistner from Frankfurt University Hospital's Department of Cardiology see a lot of potential in better positioning medical research to account for the diversity of people. "We will soon establish a women's heart center [Women's Heart Health Center Frankfurt] at Goethe University, which will conduct gender-sensitive medical research. Gaining more expertise in this field can take medicine in Germany a big step forward," says cardiologist Seegers, who spent two years at Harvard University in Boston researching gender differences in coronary arteries. Women often ignore cardiovascular symptoms, she says, because they are used to fluctuations in their well-being, which they experience throughout their lives. However, she adds that a specific look at female health is particularly important during phases of hormonal change, such as pregnancy and menopause. The connection between rheumatic or gynecological diseases and the risk of heart attack is still relatively unexplored, she says, adding that, "Women in Germany have a significantly higher risk of dying from a heart attack than men." 

Although differentiated and sophisticated gender research has existed in the educational sciences for a long time, so far it has not constituted a cross-sectional topic. A lot still needs to be done in this regard, explained Prof. Bettina Kleiner, educationalist and director of the Cornelia Goethe Center. Although her discipline focuses on more than the pedagogical action fields represented by schools and daycare centers, the reality children encounter here constitutes a formative experience for the social gender order. Whereas, on the one hand, schools reflect a society's living conditions, on the other, it falls upon them to socialize children and young people. In so doing, schools always impart values and norms that merit further reflection. "Gender stereotypes continue to be reproduced in school lessons, resulting, among others, in the formation of different subject-related and professional preferences that tend to be disadvantageous for women in terms of their careers. With regard to queer children and young people," Kleiner continues, "their personal realities are still rarely – much less adequately – represented. That is why we need to sensitize prospective teachers to stereotypes in their own thinking." The extent to which equality among researchers can be achieved definitely plays an important role, too: "Of course, it also matters who is doing the research," she is convinced. For Kleiner, Goethe University's ten-point paper constitutes an "important commitment to strengthening gender reflexivity, diversity and equity in research." 

Goethe University's ten-point plan is available for download at https://www.uni-frankfurt.de/139066042


Editor: Dr. Anke Sauter, Science Editor, PR & Communication Office, Tel: +49 (0)69 798-13066, Fax: +49 (0) 69 798-763 12531, sauter@pvw.uni-frankfurt.de