Böke Lab

Böke LabBöke Lab

Quantitative Cell Biology

Böke Lab
Oocyte Biology & Cellular Dormancy
Group leader

Böke Lab

Oocyte Biology & Cellular Dormancy
Group leader
We are offering a fully-funded PhD position in our lab

2008-2012           Graduate Student at Cancer Research UK Manchester Institute (CRUK-MI), Manchester, UK.
2013-2016           Postdoctoral Fellow at the Department of Systems Biology,  Harvard Medical School, Boston, USA. 
2017-                   Group Leader in the Cell & Developmental Biology programme at the Centre for Genomic Regulation, Barcelona, Spain.

Group News

Elvan receives the Barcelona City Prize (Premi Ciutat de Barcelona 2022). Congratulations! (16/02/2023)

Research exploring how human egg cells remain healthy for decades backed by ERC (31/01/2023)
The group will combine experiments involving biochemical perturbations with imaging and the state-of-the-art -omics techniques to reveal both the mechanisms dormant oocytes employ to maintain cellular fitness and how ageing affects these mechanisms.

Human eggs remain healthy for decades by putting ‘batteries on standby mode’ (20/07/2022)
Immature human egg cells skip a fundamental metabolic reaction thought to be essential for generating energy, according to the findings of a study by researchers at the CRG published in Nature.

Elvan Böke joins EMBO Young Investigator Network (09/12/2021)
Elvan has been selected to the European Molecular Biology Organization’s (EMBO) prestigious young investigator programme.

The Böke lab awarded an ERC Starting Grant 2017 to study dormant oocytes. Congrats! (06/09/2017)

Job Openings

If you are enthusiastic to discover the strategies that enable a cell to evade ageing for decades, join us! Write an email to Elvan to discuss possibilities. 


Our lab focuses on one of the biggest problems developed nations are facing in 21st century: Late-stage motherhood, and associated fertility problems. The decrease in fertility rates is leading to a population decline in majority of the developed nations from Japan to Spain, which will have unprecedented consequences for our societies in near future.

Poor oocyte quality accounts for the majority of female fertility problems, however, we know little about how oocytes can remain healthy for many years or why their health eventually declines with advanced age. World-wide data show that more than 25% of female fertility problems are unexplained, pointing to a huge gap in our understanding of female reproduction. Our lab strives to help fill this gap by studying immature oocytes.

We’re interested in three main lines of research:

1 - How do oocytes maintain proteostasis?

A remarkable feature of reproduction is that the offspring does not inherit the ageing status of their parents. In mammals, the embryo inherits the cytoplasm from the mother, in the form of the oocyte cytoplasm. This suggests the existence of mechanisms to counteract the accumulation of intracellular damage in the oocytes. We are studying these mechanisms to reveal how oocytes establish and maintain proteostasis. 

2 -  What is the metabolic state of mitochondria in oocytes?

Mitochondria in oocytes are the sole source of mitochondria for the new embryo, and thus, their quality is extremely important for proper development. We are working with human and frog  (Xenopus leavis) oocytes to understand the metabolic nature of mitochondria in oocytes.  
The majority of mitochondria in human and frog early oocytes lie in the Balbiani body, which can be thought of as a “superorganelle” that clusters other organelles. The Balbiani body is stable only in the dormant oocytes, and disperses upon oocyte activation. Our previous research has shown that the Balbiani body forms an amyloid-like cage around organelles that could be protective. We investigate the function of the Balbiani body, as well as features of mitochondria inside and outside of this superorganelle. 


Balbiani bodies, labeled “BB” in these images of an immature frog egg (left) and immature human egg (right, larger scale), hold organelles together in one spot next to the nucleus, “n,” in the months or years before an egg matures. Images: Elvan Boke (left), Arthur Hertig (right)

3-  Are primordial oocytes susceptible to aging?

Oocyte quality declines with increasing maternal age, but we do not know whether age-related defects are already present in primordial oocytes or are acquired during oocyte maturation. Indeed, it is unknown to which extent oocyte aging is caused by cell-intrinsic mechanisms or by the aging microenvironment (cell-extrinsic). Answers to these questions might allow us to develop therapeutic strategies that delay or even prevent oocyte decline with age.

We use oocytes from two vertebrate species, frogs and mice, which are complementary for their ease of handling and relationship to human physiology. We also collaborate with Hospital Clinic Barcelona and Clinica Eugin to obtain human immature oocytes.