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School of Medicine Established in 1930, Duke University School of Medicine is the youngest of the nation's top medical schools. Ranked sixth among medical schools in the nation, the School takes pride in being an inclusive community of outstanding learners, investigators, clinicians, and staff where interdisciplinary collaboration is embraced and great ideas accelerate translation of fundamental scientific discoveries to improve human health locally and around the globe. Composed of more than 2,600 faculty physicians and researchers, nearly 2,000 students, and more than 6,200 staff, the Duke University School of Medicine along with the Duke University School of Nursing, and Duke University Health System comprise Duke Health, a world-class academic medical center. The Health System encompasses Duke University Hospital, Duke Regional Hospital, Duke Raleigh Hospital, Duke Health Integrated Practice, Duke Primary Care, Duke Home Care and Hospice, Duke Health and Wellness, and multiple affiliations.

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The Matsumani Lab is interested in the molecular mechanisms underlying chemosensation (taste and smell) in mammals. The receptors that detect odorants, pheromones, and many tastants including bitter and sweet chemicals are G-protein coupled receptors (GPCRs), which typically have seven transmembrane domains. There are many important questions that are still unanswered in chemosensory neurobiology. How do tens of thousands of different chemicals (tastants, odorants, or pheromones) interact with more than one thousand chemosensory receptors (about 1000 odorant receptors, 40 taste receptors and 200 vomeronasal receptors in the case of mice or rats)? How is the information coded in sensory cells and in the brain? How does the brain direct appropriate behavioral responses? What are the mechanisms underlying development and regeneration of sensory cells and specific synapse connections? We address these questions using molecular biology, genome information and genetics.
The detection of tastants is mediated by taste receptor cells that are clustered in taste buds in the mouth. Interestingly, some people can taste certain chemicals, such as 6-n-propylthiouracil (a bitter compound) while others can't. Likewise, some strains of mice can taste certain bitter or sweet tastants while others can't. Based on these variations, the bitter and sweet taste loci have been mapped on human or mouse chromosomes. By using the increasingly powerful genome informatics tools, we as well as other groups, have identified families of GPCRs that may detect bitter and sweet compounds. We seek to understand how specific changes in nucleotide sequences cause these differences in taste sensitivity. Another goal is to understand how the gustatory system is organized.
In olfaction, the detection of volatile odorants is mediated by olfactory sensory neurons in the olfactory epithelium of the nose. Odorants are detected by about 1000 different types of odorant receptors that are encoded by a multigene family. Each olfactory sensory neuron expresses only one receptor type out of 1000 receptors. Axons of neurons expressing the same receptor all converge in a few glomeruli in the olfactory bulb of the brain. We wish to understand the mechanisms underlying this convergence.
Finally, we are interested in the pheromone sensing system. Pheromones are chemicals that are released from animals and induce innate behavior, such as mating or aggression, or hormonal changes in members of the same species.
The detection of pheromones is mediated primarily by a second olfactory sense organ, called the vomeronasal organ (VNO). We, as well as other groups, have found families of candidate pheromone receptors by comparing gene expression between single VNO neurons. Pheromone molecules may induce their effects by activating some of these receptors, which ultimately affect particular regions of the brain. We seek to understand how these pheromonal effects are mediated.

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Key Responsibilities:                                                

The new hire will support research activities related to the chemical senses, with a particular focus on advancing our understanding of the sense of smell. Responsibilities may include molecular biology, cell culture, and maintenance of mouse colonies. The position will also involve managing laboratory supplies and consumables, including monitoring inventory and placing orders, to help maintain efficient and productive laboratory operations.

Applicants should have a bachelor's degree in a relevant scientific field, such as biology, chemistry, neuroscience, or a related discipline.

This position is: 

Onsite. The work is performed on-site or at a designated assignment location.

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Be part of a dynamic team committed to innovating in the fields of genomics, nutrition, and public health. Our lab offers a stimulating environment where your contributions will have a meaningful impact on scientific research and public health. We welcome applicants who are passionate about advancing genomic technologies and are ready to embark on a challenging and rewarding research career.