The Kafri Lab<\/h1><\/div>Exploring the intersection of cell size, longevity and cancer prevention<\/p>\n<\/div><\/div><\/div><\/div><\/div>
Our mission<\/h2>\n<\/div><\/div><\/div>At the Kafri Lab, our goal is to<\/span> understand the molecular mechanisms that influence traits like cell size and lifespan. This research could help identify new drug targets and strategies to prevent age-related diseases, including cancer.<\/span><\/p>\n<\/div><\/div><\/div>What do we study?<\/h2>\n<\/div><\/div><\/div>Our lab studies two main areas:<\/span><\/p>\n\n- Preventing human cancers<\/span><\/li>\n
- Understanding how mammalian lifespan is controlled<\/span><\/li>\n<\/ul>\n
Both topics came from our exploration of a simple idea\u2014how cells control their size. We discovered that animals with larger cells, like mice, usually have shorter lifespans, while those with smaller cells, like fruit bats, tend to live longer. Additionally, in collaboration with the Malkin Lab at SickKids, we found that humans who are more likely to get cancer, like those with Li-Fraumeni Syndrome (LFS), develop tumours earlier if their cells are larger.<\/span><\/p>\nSo, what connects cell size to longevity and cancer? The key is in anabolic pathways like mTORC1. When mTORC1 activity is high, it promotes cell growth, resulting in larger cells. However, this same activity can speed up aging and the development of cancer. Our lab aims to understand how mTORC1 and similar pathways not only control cell size but also influence lifespan and the risk of diseases.<\/p>\n<\/div><\/div><\/div>
<\/i><\/div><\/div>Cell size and growth regulation<\/h3><\/div>What determines the specific size of each of the different cell types? And why are cells regulated to have one specific size over another? How are the particular cell size values encoded in the chemistry of signaling?<\/p>\n<\/div><\/div><\/div>
<\/i><\/div><\/div>Longevity and aging<\/h3><\/div>Our research indicates a strong link between cell size and longevity. Collaborating with the Toronto Zoo and other institutions, we’ve discovered that smaller cells and slower growth rates are often associated with longer lifespans in various mammalian species.<\/p>\n<\/div><\/div><\/div>
<\/i><\/div><\/div>Advancing early cancer diagnosis for LFS patients<\/h3><\/div>We are exploring new ways to prevent cancer, particularly in relation to Li-Fraumeni Syndrome (LFS), a rare genetic disorder that greatly increases cancer risk. Our research has found a link between the growth rate of skin fibroblasts and the age at which cancer is diagnosed in both mouse models and LFS patients. This finding paves the way for potential diagnostic tools and preventive strategies. Based on this research, we are creating skin biopsy-based tests for early cancer prognosis in LFS patients. By identifying those at higher risk, we can implement more targeted and frequent monitoring, which may lead to earlier tumor detection and better outcomes.<\/p>\n<\/div><\/div><\/div>
Exploring the intersection of cell size, longevity and cancer prevention<\/p>\n<\/div><\/div><\/div><\/div><\/div>
Our mission<\/h2>\n<\/div><\/div><\/div>At the Kafri Lab, our goal is to<\/span> understand the molecular mechanisms that influence traits like cell size and lifespan. This research could help identify new drug targets and strategies to prevent age-related diseases, including cancer.<\/span><\/p>\n<\/div><\/div><\/div>What do we study?<\/h2>\n<\/div><\/div><\/div>Our lab studies two main areas:<\/span><\/p>\n\n- Preventing human cancers<\/span><\/li>\n
- Understanding how mammalian lifespan is controlled<\/span><\/li>\n<\/ul>\n
Both topics came from our exploration of a simple idea\u2014how cells control their size. We discovered that animals with larger cells, like mice, usually have shorter lifespans, while those with smaller cells, like fruit bats, tend to live longer. Additionally, in collaboration with the Malkin Lab at SickKids, we found that humans who are more likely to get cancer, like those with Li-Fraumeni Syndrome (LFS), develop tumours earlier if their cells are larger.<\/span><\/p>\nSo, what connects cell size to longevity and cancer? The key is in anabolic pathways like mTORC1. When mTORC1 activity is high, it promotes cell growth, resulting in larger cells. However, this same activity can speed up aging and the development of cancer. Our lab aims to understand how mTORC1 and similar pathways not only control cell size but also influence lifespan and the risk of diseases.<\/p>\n<\/div><\/div><\/div>
<\/i><\/div><\/div>Cell size and growth regulation<\/h3><\/div>What determines the specific size of each of the different cell types? And why are cells regulated to have one specific size over another? How are the particular cell size values encoded in the chemistry of signaling?<\/p>\n<\/div><\/div><\/div>
<\/i><\/div><\/div>Longevity and aging<\/h3><\/div>Our research indicates a strong link between cell size and longevity. Collaborating with the Toronto Zoo and other institutions, we’ve discovered that smaller cells and slower growth rates are often associated with longer lifespans in various mammalian species.<\/p>\n<\/div><\/div><\/div>
<\/i><\/div><\/div>Advancing early cancer diagnosis for LFS patients<\/h3><\/div>We are exploring new ways to prevent cancer, particularly in relation to Li-Fraumeni Syndrome (LFS), a rare genetic disorder that greatly increases cancer risk. Our research has found a link between the growth rate of skin fibroblasts and the age at which cancer is diagnosed in both mouse models and LFS patients. This finding paves the way for potential diagnostic tools and preventive strategies. Based on this research, we are creating skin biopsy-based tests for early cancer prognosis in LFS patients. By identifying those at higher risk, we can implement more targeted and frequent monitoring, which may lead to earlier tumor detection and better outcomes.<\/p>\n<\/div><\/div><\/div>
At the Kafri Lab, our goal is to<\/span> understand the molecular mechanisms that influence traits like cell size and lifespan. This research could help identify new drug targets and strategies to prevent age-related diseases, including cancer.<\/span><\/p>\n<\/div><\/div><\/div> Our lab studies two main areas:<\/span><\/p>\n Both topics came from our exploration of a simple idea\u2014how cells control their size. We discovered that animals with larger cells, like mice, usually have shorter lifespans, while those with smaller cells, like fruit bats, tend to live longer. Additionally, in collaboration with the Malkin Lab at SickKids, we found that humans who are more likely to get cancer, like those with Li-Fraumeni Syndrome (LFS), develop tumours earlier if their cells are larger.<\/span><\/p>\n So, what connects cell size to longevity and cancer? The key is in anabolic pathways like mTORC1. When mTORC1 activity is high, it promotes cell growth, resulting in larger cells. However, this same activity can speed up aging and the development of cancer. Our lab aims to understand how mTORC1 and similar pathways not only control cell size but also influence lifespan and the risk of diseases.<\/p>\n<\/div><\/div><\/div> What determines the specific size of each of the different cell types? And why are cells regulated to have one specific size over another? How are the particular cell size values encoded in the chemistry of signaling?<\/p>\n<\/div><\/div><\/div> Our research indicates a strong link between cell size and longevity. Collaborating with the Toronto Zoo and other institutions, we’ve discovered that smaller cells and slower growth rates are often associated with longer lifespans in various mammalian species.<\/p>\n<\/div><\/div><\/div> We are exploring new ways to prevent cancer, particularly in relation to Li-Fraumeni Syndrome (LFS), a rare genetic disorder that greatly increases cancer risk. Our research has found a link between the growth rate of skin fibroblasts and the age at which cancer is diagnosed in both mouse models and LFS patients. This finding paves the way for potential diagnostic tools and preventive strategies. Based on this research, we are creating skin biopsy-based tests for early cancer prognosis in LFS patients. By identifying those at higher risk, we can implement more targeted and frequent monitoring, which may lead to earlier tumor detection and better outcomes.<\/p>\n<\/div><\/div><\/div>What do we study?<\/h2>\n<\/div>
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Cell size and growth regulation<\/h3><\/div>
Longevity and aging<\/h3><\/div>
Advancing early cancer diagnosis for LFS patients<\/h3><\/div>
![\"Dr.](\"https:\/\/lab.research.sickkids.ca\/kafri\/wp-content\/uploads\/sites\/155\/2024\/10\/ran-kafri-headshot.png\" "\\"Dr.")
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