Scientists have identified a molecular mechanism that eliminates defective cells during faulty cell division, shedding new light on the fundamental processes involved. The discovery could lead to more effective treatments for blood cancer by targeting cells with multiple centrosomes, which are a hallmark of disrupted division.
SourceCeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences·JournalScience Advances·TypeExperimental study·DateOct 30, 2024
A research team from the Medical University of South Carolina identified a protein called TACC3 that enables cancer cells to successfully divide despite an abnormality that should lead to their death. This discovery offers new hope for developing targeted therapies to selectively kill cancer cells while leaving normal cells intact.
SourceMedical University of South Carolina·JournalCell Death and Differentiation·DateApr 27, 2023
Researchers at DZNE discovered that centrosome controls neuronal migration but not axon growth. The study used novel molecular tools to show that centrosomal activity influences radial migration of projection neurons.
SourceDZNE - German Center for Neurodegenerative Diseases·JournalNeuron·TypeExperimental study·DateFeb 15, 2023
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Researchers at the University of Bonn have identified a mechanism that helps dendritic cells migrate more quickly to lymph nodes. The discovery reveals that forming multiple centrosomes enables these immune cells to stay on course longer before continuing their search.
SourceUniversity of Bonn·JournalJournal of Cell Biology·DateOct 14, 2022
Researchers at Helmholtz Munich found that centrosome protein composition differs between cell types, leading to disease relevance. A specific protein's location is crucial for its role in neuronal diseases.
SourceHelmholtz Munich (Helmholtz Zentrum München Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH))·JournalScience·DateJun 16, 2022
Researchers at Bielefeld University have identified five key characteristics of mitosis in the microalga Volvox carteri, including a porous nuclear envelope and crucial centrosome function. They used confocal laser scanning microscopy to capture high-resolution images of live cell division and gain insights into the complex process.
SourceBielefeld University·JournalThe Plant Cell·TypeImaging analysis·DateMar 4, 2022
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The loss of expression of a microtubule/tubulin binding protein, centrosomal protein 4.1-associated protein, causes increased EGFR levels and signaling in oral squamous cell carcinoma cells. Depletion of CPAP enhances tumorigenicity, while EGFR depletion attenuates EMT features.
SourceImpact Journals LLC·JournalOncotarget·DateJul 2, 2021
Researchers at WPI will develop computational models to understand cellular forces and geometry during cell division. The study aims to identify factors that lead to defective spindle structure in cells, which can be targeted to promote cancer cell death.
Researchers found that IQGAP1 controls centrosome function and defines molecular variants of breast cancer. IQGAP1 modulates nuclear-centrosome crosstalk to regulate cell division, suggesting a common target for personalized medicine in triple-negative breast cancer.
SourceImpact Journals LLC·JournalOncotarget·DateJun 30, 2020
Researchers from Université de Genève have discovered an internal structure at the center of centrioles, crucial organelles that form the cell skeleton. This finding provides a better understanding of centriole functions and pathologies associated with their dysfunction, including ciliopathies and retinal disorders.
SourceUniversité de Genève·JournalScience Advances·DateFeb 20, 2020
Researchers have gained new insights into the mechanisms of cell division by examining the function of centrioles. They found that centrioles play a crucial role in promoting mitotic spindle assembly and maintaining centrosome structural integrity. The study's findings help to elucidate the critical functions of centrioles in the process.
SourceUniversity of Vienna·JournalDevelopmental Cell·DateJul 11, 2019
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Researchers identify essential protein PCMD-1 in controlling cell division at the centrosomal level, which is also linked to a genetic disease called primary microcephaly. The study provides insights into how centrosome assembly is regulated and has significant implications for understanding human developmental defects.
SourceLudwig-Maximilians-Universität München·JournalCurrent Biology·DateApr 15, 2019
Scientists found that non-diploid cells have unstable centrosomes and microtubules, leading to abnormalities in cell replication. This understanding could lead to new cancer treatment strategies.
SourceHokkaido University·JournalJournal of Cell Biology·DateMay 24, 2018
A new study found that cells with abnormal centrosomes are present before they transform into cancer cells in patients with Barrett's esophagus. Centrosome amplification was found to be a hallmark of human tumors and may contribute to the initiation and progression of various cancers.
SourceRockefeller University Press·JournalJournal of Cell Biology·DateMay 8, 2018
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Biologists at Johns Hopkins have found that extra centrosomes in mice can lead to tumor formation due to improper chromosome separation. This discovery provides a new model for cancer research that more closely mimics human tumors, with half of the mice developing cancer within 9-18 months.
SourceJohns Hopkins Medicine·JournalDevelopmental Cell·DateJan 26, 2017
Researchers found that autophagy degrades Cep63 to regulate centrosome number, preventing genomic instability. Cells deficient in autophagy have extra centrosomes, highlighting the role of autophagy in maintaining genomic stability.
SourceTokyo Medical and Dental University·JournalNature Communications·DateNov 24, 2016
Researchers at Drexel University discover that motor proteins and sliding microtubules play a crucial role in guiding neurons to their correct destinations. The study's findings have significant implications for understanding neurodevelopmental disorders such as autism.
SourceDrexel University·JournalJournal of Cell Biology·DateMay 17, 2016
The American Association of Anatomists awards Young Investigators for groundbreaking research in cell biology, neuroanatomy, and morphological sciences. The winners, including Michael Jenkins, Andrew Holland, Casey Holliday, and Hillel Adesnik, are recognized for their contributions to the field and will present lectures on their work.
A team of researchers at Washington State University has discovered a novel structural function of the protein ATF5, which guides transcription and provides structure within the centrosome. This finding sheds light on the role of ATF5 in cell division and its potential implications for cancer growth and disease treatment.
SourceWashington State University·JournalCell·DateJul 23, 2015
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Researchers at the University of Iowa identified a mechanism in which a protein 'hitchhiker' attaches to the centrosome to regulate gene expression during cell division. This process could have implications for understanding human development and disease, including cancer treatment.
SourceUniversity of Iowa·JournalCurrent Biology·DateApr 6, 2015
Researchers found higher levels of BPA in prostate cancer patients than non-prostate cancer patients, with low-dose exposure linked to centrosome amplification and cell transformation. The study suggests a previously unknown relationship between BPA exposure and prostate cancer development.
SourceUniversity of Cincinnati·JournalPLOS ONE·DateMar 3, 2014
A crucial amino acid signal regulates centrosome duplication and its absence leads to pathologically altered cells found in people with microcephaly. This discovery sheds light on the development of this neurodevelopmental disorder.
SourceUniversity of Basel·JournalCurrent Biology·DateJan 31, 2014
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In a plant cell model system, the katanin enzyme carefully cuts misaligned microtubules at crossovers to form parallel bands. This activity organizes and maintains the cytoskeleton's pattern, essential for its functions in shape and molecular transport.
SourceWashington University in St. Louis·JournalCurrent Biology·DateOct 24, 2013
A team of scientists has discovered a crucial mechanism controlling centriole separation during cell division, shedding light on the process and its potential links to cancer. The study's findings suggest that the dense mass surrounding centrioles, called PCM, plays a key role in regulating their separation.
SourceUniversity of Vienna·JournalCurrent Biology·DateJul 23, 2013
A new study reveals that clathrin protein moonlights as a key player in cell division, shedding light on the process and potential links to cancer. By deleting clathrin from cells, researchers found that it stabilizes centrosomes, which are essential for proper chromosome segregation.
SourceUniversity of California - San Francisco·JournalJournal of Cell Biology·DateSep 6, 2012
Scientists at Cold Spring Harbor Laboratory link gene mutations in Orc1 protein to extreme dwarfism and small brain size in Meier-Gorlin syndrome. The study reveals that centrosome reduplication and dysregulation of DNA replication contribute to severe manifestations of the rare condition.
SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateJul 31, 2012
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Researchers discovered that planarians lack centrosomes and yet retain regenerative powers. By studying planarian homologs, the team identified conserved proteins required for centriole assembly in human cells, suggesting alternative functions for centrosomes.
SourceStowers Institute for Medical Research·JournalScience·DateJan 5, 2012
Researchers have discovered that flatworms can regenerate without centrosomes, a cellular structure essential for cell division in all animals. This finding challenges the long-held assumption that centrosomes are crucial for cell division.
SourceUniversity of California - San Francisco·JournalScience·DateJan 5, 2012
Researchers identified key proteins controlling centrosome separation, which could prevent uncontrolled cell proliferation in cancer. Combining drugs against different regulators may reduce side effects and improve treatment outcomes.
SourceUniversity of Leicester·JournalNature Cell Biology·DateNov 17, 2010
Researchers watched a fundamental process of cellular organization in living plant cells, where protein complexes create the microtubule cytoskeleton. They observed that these complexes are distributed at the cell membrane and interact with other microtubules to organize the cell shape and structure.
SourceCarnegie Institution for Science·JournalNature Cell Biology·DateOct 10, 2010
Cancer cells form clusters of centrosomes to distribute chromosomes correctly, a trick that can be targeted for destroying them. Researchers identified 82 genes responsible for this survival strategy and found that silencing specific proteins disrupts tension in spindle fibers, leading to cancer cell death.
SourceHelmholtz Association·JournalScience Translational Medicine·DateJun 1, 2010
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Researchers have discovered the molecular signals used by Toxoplasma gondii to control cell behavior, paving the way for new treatments and vaccines. By disabling these signals, scientists can liberate cells from parasite takeover, potentially improving immune responses and treatment outcomes.
SourceAmerican Society for Biochemistry and Molecular Biology·JournalJournal of Biological Chemistry·DateApr 20, 2010
Cancer cells have been found to rarely undergo explosive divisions, with resulting daughter cells often surviving only a few days. The extra centrosomes cause an unequal pull on some chromosomes, leading to chromosomal instability and irregular numbers of chromosomes.
SourceDana-Farber Cancer Institute·JournalNature·DateJun 7, 2009
CSHL scientists identify Orc1 as a protein controlling centrosome duplication, preventing excess centrosomes and ensuring genetic stability. The study reveals Orc1's role in regulating centriole pairing and centrosome duplication, with implications for cancer research.
SourceCold Spring Harbor Laboratory·JournalScience·DateFeb 5, 2009
Portuguese scientists identify Slimb molecule controlling centrosome number in cells, associated with disease and cancer. Understanding this mechanism offers new avenues for researching tumour development.
SourceInstituto Gulbenkian de Ciencia·JournalCurrent Biology·DateJan 12, 2009
Researchers propose a symbiotic origin for the centrosome, a cell division component. The Alliegros' paper provides RNA evidence supporting this idea, which challenges traditional evolutionary theories.
SourceMarine Biological Laboratory·JournalProceedings of the National Academy of Sciences·DateMay 6, 2008
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Researchers at Vanderbilt University Medical Center discovered that the Golgi apparatus is a novel source of microtubules in cells, which are crucial for cell movement and division. This finding could lead to new insights into cancer cell invasion and treatment strategies.
SourceVanderbilt University Medical Center·JournalDevelopmental Cell·DateJun 20, 2007
The study identifies centrosome asymmetry as a key regulator of asymmetric stem cell division, ensuring the correct differential identity of resulting cells. This complex behavior is precisely regulated, coinciding with the orientation in which the stem cell must divide to guarantee asymmetry.
SourceInstitute for Research in Biomedicine (IRB Barcelona)·JournalDevelopmental Cell·DateMar 5, 2007
Researchers at LSUHSC discovered unique RNAs in centrosomes that govern cell division and genetic stability. The findings have broad implications for understanding eukaryotic evolution and potentially developing new cancer treatments.
SourceLouisiana State University Health Sciences Center·JournalProceedings of the National Academy of Sciences·DateJun 13, 2006
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Researchers have discovered RNA in the cellular centrosome of surf clams, which may be related to structure, protein encoding, and organism development. This finding has significant implications for understanding cancer development and progression.
SourceRensselaer Polytechnic Institute·JournalProceedings of the National Academy of Sciences·DateJun 6, 2006
Researchers from the Marine Biological Laboratory (MBL) have detected five unique RNA sequences associated with centrosomes, which play a key role in cell division. These findings may shed light on the complex process of cell division and its relationship to cancer research.
SourceMarine Biological Laboratory·JournalProceedings of the National Academy of Sciences·DateJun 6, 2006
Researchers at UCSC discover that Hymenopteran insects create new centrosomes in unfertilized eggs using accessory nuclei. This process allows for the development of haploid males, which have half the number of chromosomes as females. The study sheds light on basic cell biology and the evolution of these social insects.
SourceUniversity of California - Santa Cruz·JournalCurrent Biology·DateApr 17, 2006
Researchers at University of Pittsburgh Medical Center found that overexpression of protein NuMA can cause changes in a cell associated with tumor formation. By studying the mechanism by which this occurs, the team identified a possible treatment target for some types of cancer.
SourceUniversity of Pittsburgh Medical Center·JournalScience·DateJan 6, 2005
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Researchers at Rockefeller University discovered that the protein Par6-alpha plays a crucial role in spurring the centrosome to action, allowing brain cells to migrate and form the brain's outer layer. The study overturned long-held assumptions about adhesion as the primary mechanism for neuronal migration.
SourceRockefeller University·JournalNature Neuroscience·DateOct 14, 2004
The study found that Dynamin-2, an enzyme involved in cell division, plays a crucial role in maintaining the integrity of the centrosome, a tiny organ essential for organizing chromosomes during cell division. This breakthrough understanding could lead to new strategies for designing cancer treatments.
SourceMayo Clinic·JournalNature Cell Biology·DateApr 19, 2004
Researchers at Max Planck Institute for Cell Biology and Genetics in Dresden and EMBL in Heidelberg have counted the number of proteins that help an egg cell divide. They found that there are more motors pulling on one side, which can pull the centrosome off-center, leading to proper development of the embryo.
SourceMax-Planck-Gesellschaft·JournalScience·DateJul 25, 2003
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Researchers have counted the number of proteins that help an egg cell divide, revealing a crucial difference in motor density between the two poles. This discovery has dramatic consequences for embryonic development and understanding cellular forces.
SourceEuropean Molecular Biology Laboratory·JournalScience·DateJul 24, 2003
The E2F3 protein plays a crucial role in controlling cell division. A study found that its absence can lead to increased genetic instability and centrosome proliferation, which may contribute to cancer development. The researchers discovered that cells without E2F3 were more likely to develop into tumors, especially when combined with ...
SourceOhio State University·JournalCancer Cell·DateApr 22, 2003