An exciting few weeks for our naked mole-rat research at HelferLab!
Naked mole-rats are among the most fascinating mammals in the animal kingdom. These unusual, almost hairless rodents live in underground colonies, have extraordinarily long lifespans for their size, and show remarkable resistance to many age-related diseases. But what makes them particularly interesting to us is their equally unusual reproductive biology. Unlike most mammals, naked mole-rats live in highly organised social colonies in which typically only one female, the queen, reproduces. The other colony members remain reproductively suppressed, despite having the biological potential to reproduce. Understanding how this remarkable system works could provide important insights into the regulation of reproduction, ageing and health.
In August, we visited the naked mole-rat colony in Cambridge, and one of the highlights was meeting some rather special members of our own colony's extended family!
Our breeding queen at the University of Bradford is called Victoria, a name given to her by the Cambridge team. Victoria is thriving in her role as queen and has been breeding very successfully. But during our visit to Cambridge, we had the opportunity to meet Victoria's mother and even her grandmother! That's three generations of naked mole-rat queens, and a wonderful reminder of just how extraordinary these animals are. Unlike most rodents, which typically live only a few years, naked mole-rats can live for more than 40 years. Even more remarkably, breeding females can remain reproductively active well into old age, challenging much of what we know about reproductive ageing in other mammals. Seeing Victoria's mother and grandmother was a particularly special experience, bringing the remarkable biology of these animals to life and reminding us why we are so fascinated by them. And with Victoria continuing to produce new generations, the family story continues!
Back at HelferLab, we have also reached an exciting milestone in our naked mole-rat project: we have received our sequencing data! Our research focuses on understanding the biological mechanisms that regulate reproduction in naked mole-rats, particularly the molecular pathways involved in reproductive suppression and activation. By studying gene expression, we hope to gain a better understanding of how these animals regulate their reproductive systems and what changes at the molecular level during different reproductive states. The arrival of the sequencing data marks the beginning of an exciting new phase. We can now start exploring which genes and biological pathways may be involved, and how their activity differs between the animals we are studying. Of course, receiving the data is only the beginning. There is plenty of bioinformatics analysis, interpretation and follow-up work ahead. But this is one of the most exciting stages of a research project: moving from collecting samples to discovering what the data might tell us.
Naked mole-rats challenge many of our assumptions about mammalian biology. They live exceptionally long lives, maintain good health as they age, and have a reproductive system unlike that of most other mammals. By studying how their reproductive system is controlled, we hope to contribute to a broader understanding of neuroendocrine regulation, reproductive ageing and the remarkable biological adaptations that make naked mole-rats so unique. For now, we're looking forward to diving into the data and seeing what we discover!
Watch this space for more updates from HelferLab.