Academic literature on the topic 'Melanosomy'

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Journal articles on the topic "Melanosomy"

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Futter, Clare E., and Daniel F. Cutler. "Coming or going? Un-BLOC-ing delivery and recycling pathways during melanosome maturation." Journal of Cell Biology 214, no. 3 (2016): 245–47. http://dx.doi.org/10.1083/jcb.201607023.

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Melanosome biogenesis requires successive waves of cargo delivery from endosomes to immature melanosomes, coupled with recycling of the trafficking machinery. Dennis et al. (2016. J. Cell Biol. http://dx.doi.org/10.1083/jcb.201605090) report differential roles for BLOC-1 and BLOC-3 complexes in delivery and recycling of melanosomal biogenetic components, supplying directionality to melanosome maturation.
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Hume, Alistair N., Abul K. Tarafder, José S. Ramalho, Elena V. Sviderskaya, and Miguel C. Seabra. "A Coiled-Coil Domain of Melanophilin Is Essential for Myosin Va Recruitment and Melanosome Transport in Melanocytes." Molecular Biology of the Cell 17, no. 11 (2006): 4720–35. http://dx.doi.org/10.1091/mbc.e06-05-0457.

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Melanophilin (Mlph) regulates retention of melanosomes at the peripheral actin cytoskeleton of melanocytes, a process essential for normal mammalian pigmentation. Mlph is proposed to be a modular protein binding the melanosome-associated protein Rab27a, Myosin Va (MyoVa), actin, and microtubule end-binding protein (EB1), via distinct N-terminal Rab27a-binding domain (R27BD), medial MyoVa-binding domain (MBD), and C-terminal actin-binding domain (ABD), respectively. We developed a novel melanosome transport assay using a Mlph-null cell line to study formation of the active Rab27a:Mlph:MyoVa com
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Ohbayashi, Norihiko, and Mitsunori Fukuda. "Recent advances in understanding the molecular basis of melanogenesis in melanocytes." F1000Research 9 (June 15, 2020): 608. http://dx.doi.org/10.12688/f1000research.24625.1.

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Melanin pigments are responsible for human skin and hair color, and they protect the body from harmful ultraviolet light. The black and brown melanin pigments are synthesized in specialized lysosome-related organelles called melanosomes in melanocytes. Mature melanosomes are transported within melanocytes and transferred to adjacent keratinocytes, which constitute the principal part of human skin. The melanosomes are then deposited inside the keratinocytes and darken the skin (a process called tanning). Owing to their dark color, melanosomes can be seen easily with an ordinary light microscope
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Sitaram, Anand, Megan K. Dennis, Rittik Chaudhuri, et al. "Differential recognition of a dileucine-based sorting signal by AP-1 and AP-3 reveals a requirement for both BLOC-1 and AP-3 in delivery of OCA2 to melanosomes." Molecular Biology of the Cell 23, no. 16 (2012): 3178–92. http://dx.doi.org/10.1091/mbc.e11-06-0509.

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Cell types that generate unique lysosome-related organelles (LROs), such as melanosomes in melanocytes, populate nascent LROs with cargoes that are diverted from endosomes. Cargo sorting toward melanosomes correlates with binding via cytoplasmically exposed sorting signals to either heterotetrameric adaptor AP-1 or AP-3. Some cargoes bind both adaptors, but the relative contribution of each adaptor to cargo recognition and their functional interactions with other effectors during transport to melanosomes are not clear. Here we exploit targeted mutagenesis of the acidic dileucine–based sorting
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Robinson, Christopher L., Richard D. Evans, Kajana Sivarasa, Jose S. Ramalho, Deborah A. Briggs, and Alistair N. Hume. "The adaptor protein melanophilin regulates dynamic myosin-Va:cargo interaction and dendrite development in melanocytes." Molecular Biology of the Cell 30, no. 6 (2019): 742–52. http://dx.doi.org/10.1091/mbc.e18-04-0237.

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The regulation of organelle transport by the cytoskeleton is fundamental for eukaryotic survival. Cytoskeleton motors are typically modular proteins with conserved motor and diverse cargo-binding domains. Motor:cargo interactions are often indirect and mediated by adaptor proteins, for example, Rab GTPases. Rab27a, via effector melanophilin (Mlph), recruits myosin-Va (MyoVa) to melanosomes and thereby disperses them into melanocyte dendrites. To better understand how adaptors regulate motor:cargo interaction, we used single melanosome fluorescence recovery after photobleaching (smFRAP) to char
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Setty, Subba Rao Gangi, Danièle Tenza, Steven T. Truschel, et al. "BLOC-1 Is Required for Cargo-specific Sorting from Vacuolar Early Endosomes toward Lysosome-related Organelles." Molecular Biology of the Cell 18, no. 3 (2007): 768–80. http://dx.doi.org/10.1091/mbc.e06-12-1066.

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Hermansky-Pudlak syndrome (HPS) is a genetic disorder characterized by defects in the formation and function of lysosome-related organelles such as melanosomes. HPS in humans or mice is caused by mutations in any of 15 genes, five of which encode subunits of biogenesis of lysosome-related organelles complex (BLOC)-1, a protein complex with no known function. Here, we show that BLOC-1 functions in selective cargo exit from early endosomes toward melanosomes. BLOC-1–deficient melanocytes accumulate the melanosomal protein tyrosinase-related protein-1 (Tyrp1), but not other melanosomal proteins,
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Ambrosio, Andrea L., Judith A. Boyle, Al E. Aradi, Keith A. Christian, and Santiago M. Di Pietro. "TPC2 controls pigmentation by regulating melanosome pH and size." Proceedings of the National Academy of Sciences 113, no. 20 (2016): 5622–27. http://dx.doi.org/10.1073/pnas.1600108113.

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Melanin is responsible for pigmentation of skin and hair and is synthesized in a specialized organelle, the melanosome, in melanocytes. A genome-wide association study revealed that the two pore segment channel 2 (TPCN2) gene is strongly linked to pigmentation variations. TPCN2 encodes the two-pore channel 2 (TPC2) protein, a cation channel. Nevertheless, how TPC2 regulates pigmentation remains unknown. Here, we show that TPC2 is expressed in melanocytes and localizes to the melanosome-limiting membrane and, to a lesser extent, to endolysosomal compartments by confocal fluorescence and immunog
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Wan, Jiyue, Shumiao Zhang, Guiling Li, et al. "Ceramide Ehux-C22 Targets the miR-199a-3p/mTOR Signaling Pathway to Regulate Melanosomal Autophagy in Mouse B16 Cells." International Journal of Molecular Sciences 25, no. 15 (2024): 8061. http://dx.doi.org/10.3390/ijms25158061.

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Melanosomes are specialized membrane-bound organelles where melanin is synthesized and stored. The levels of melanin can be effectively reduced by inhibiting melanin synthesis or promoting melanosome degradation via autophagy. Ceramide, a key component in the metabolism of sphingolipids, is crucial for preserving the skin barrier, keeping it hydrated, and warding off the signs of aging. Our preliminary study indicated that a long-chain C22-ceramide compound (Ehux-C22) isolated from the marine microalga Emiliania huxleyi, reduced melanin levels via melanosomal autophagy in B16 cells. Recently,
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Delevoye, Cédric, Ilse Hurbain, Danièle Tenza, et al. "AP-1 and KIF13A coordinate endosomal sorting and positioning during melanosome biogenesis." Journal of Cell Biology 187, no. 2 (2009): 247–64. http://dx.doi.org/10.1083/jcb.200907122.

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Specialized cell types exploit endosomal trafficking to deliver protein cargoes to cell type–specific lysosome-related organelles (LROs), but how endosomes are specified for this function is not known. In this study, we show that the clathrin adaptor AP-1 and the kinesin motor KIF13A together create peripheral recycling endosomal subdomains in melanocytes required for cargo delivery to maturing melanosomes. In cells depleted of AP-1 or KIF13A, a subpopulation of recycling endosomes redistributes to pericentriolar clusters, resulting in sequestration of melanosomal enzymes like Tyrp1 in vacuola
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Rogers, Christopher S., Timothy I. Astrop, Samuel M. Webb, Shosuke Ito, Kazumasa Wakamatsu, and Maria E. McNamara. "Synchrotron X-ray absorption spectroscopy of melanosomes in vertebrates and cephalopods: implications for the affinity of Tullimonstrum." Proceedings of the Royal Society B: Biological Sciences 286, no. 1913 (2019): 20191649. http://dx.doi.org/10.1098/rspb.2019.1649.

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Screening pigments are essential for vision in animals. Vertebrates use melanins bound in melanosomes as screening pigments, whereas cephalopods are assumed to use ommochromes. Preserved eye melanosomes in the controversial fossil Tullimonstrum (Mazon Creek, IL, USA) are partitioned by size and/or shape into distinct layers. These layers resemble tissue-specific melanosome populations considered unique to the vertebrate eye. Here, we show that extant cephalopod eyes also show tissue-specific size- and/or shape-specific partitioning of melanosomes; these differ from vertebrate melanosomes in th
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Dissertations / Theses on the topic "Melanosomy"

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Zhao, Jiuzhou. "Convective Assembly of Rod-shaped Melanosome in Dilute Polymer Solution." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1462211308.

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Ebanks, Jody P. "Differential Processing/Degradation of Melanosomes by Epidermal Keratinocytes." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1298042202.

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Peteya, Jennifer Anita Peteya. "The Evolutionary History and Preservation of Melanins and Melanosomes." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1530962281275019.

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Gorniak, Thomas [Verfasser], and Michael [Akademischer Betreuer] Grunze. "Melanosomen im Real- und Fourierraum / Thomas Gorniak ; Betreuer: Michael Grunze." Heidelberg : Universitätsbibliothek Heidelberg, 2013. http://d-nb.info/1177381389/34.

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Yang, Xiaozhou. "Exploring Nanomechanical Properties of Natural Melanosomes via Atomic Force Microscopy." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1523215102019988.

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Theos, Alexander Constantine. "Sorting of proteins to the melanosome in AP-3 mouse mutants mocha and pearl." Thesis, University of Cambridge, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.620260.

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Robinson, Christopher L. "MyosinVa and dynamic actin oppose minus-end directed microtubule motors to drive anterograde melanosome transport." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/33616/.

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The intracellular transport of organelles and vesicles is thought to utilise both microtubules and actin filaments, which mediate long and short-range transport, respectively. Melanosomes, synthesised in melanocytes, are a convenient model organelle to study intracellular transport, since they are visible using brightfield microscopy. They are believed to be transported from the perinuclear area to the actin cortex along microtubules, and then captured by the myosin-Va/melanophilin/Rab27a complex which traffics them along actin filaments to the plasma membrane. In contrast, data presented here
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Oberhofer, Angela Verfasser], and Manfred [Akademischer Betreuer] [Schliwa. "Mechanistic dissection of myosin Va-based melanosome transport in vitro / Angela Oberhofer ; Betreuer: Manfred Schliwa." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2017. http://d-nb.info/1144857333/34.

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Aspengren, Sara. "Melanophores : functional and morphological studies of intracellular transport and transfer of melanosomes /." Göteborg : Department of Zoology, Zoophysiology Göteborg University, 2006. http://www.loc.gov/catdir/toc/fy0705/2006421396.html.

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Brondolin, Mirco [Verfasser]. "Peroxin3, a newly identified regulator of melanocyte development and melanosome biogenesis in zebrafish Danio rerio / Mirco Brondolin." Bonn : Universitäts- und Landesbibliothek Bonn, 2017. http://d-nb.info/1159955077/34.

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Books on the topic "Melanosomy"

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Borovanský, Jan, and Patrick A. Riley, eds. Melanins and Melanosomes. Wiley-VCH Verlag GmbH & Co. KGaA, 2011. http://dx.doi.org/10.1002/9783527636150.

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Riley, P. A., and Jan Borovansky. Melanins and melanosomes: Biosynthesis, biogenesis, physiological, and pathological functions. Wiley-Blackwell, 2011.

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Aspengren, Sara. Melanophores: Functional and morphological studies of intracellular transport and transfer of melanosomes. Dept. of Zoology, Zoophysiology, Göteborg University, 2006.

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Borovansky, Jan, and Patrick A. Riley. Melanins and Melanosomes: Biosynthesis, Structure, Physiological and Pathological Functions. Wiley & Sons, Incorporated, John, 2012.

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Borovansky, Jan, and Patrick A. Riley. Melanins and Melanosomes: Biosynthesis, Structure, Physiological and Pathological Functions. Wiley & Sons, Incorporated, John, 2011.

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Book chapters on the topic "Melanosomy"

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Bährle-Rapp, Marina. "Melanosomen." In Springer Lexikon Kosmetik und Körperpflege. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_6405.

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Schroeder, Josef A. "Melanosomes." In Ghadially’s Ultrastructural Pathology of the Cell and Matrix, 5th ed. CRC Press, 2025. https://doi.org/10.1201/9781003498551-9.

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Borovanský, Jan. "History of Melanosome Research." In Melanins and Melanosomes. Wiley-VCH Verlag GmbH & Co. KGaA, 2011. http://dx.doi.org/10.1002/9783527636150.ch1.

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Delevoye, Cédric, Francesca Giordano, Michael S. Marks, and Graça Raposo. "Biogenesis of Melanosomes." In Melanins and Melanosomes. Wiley-VCH Verlag GmbH & Co. KGaA, 2011. http://dx.doi.org/10.1002/9783527636150.ch9.

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Van Gele, Mireille, and Jo Lambert. "Transport and Distribution of Melanosomes." In Melanins and Melanosomes. Wiley-VCH Verlag GmbH & Co. KGaA, 2011. http://dx.doi.org/10.1002/9783527636150.ch10.

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Hearing, Vincent J. "Genetics of Melanosome Structure and Function." In Melanins and Melanosomes. Wiley-VCH Verlag GmbH & Co. KGaA, 2011. http://dx.doi.org/10.1002/9783527636150.ch11.

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Borovanský, Jan, and Patrick A. Riley. "Physiological and Pathological Functions of Melanosomes." In Melanins and Melanosomes. Wiley-VCH Verlag GmbH & Co. KGaA, 2011. http://dx.doi.org/10.1002/9783527636150.ch12.

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Pavel, Stanislav, Nico P. M. Smit, and Karel Pizinger. "Dysplastic Nevi as Precursor Melanoma Lesions." In Melanins and Melanosomes. Wiley-VCH Verlag GmbH & Co. KGaA, 2011. http://dx.doi.org/10.1002/9783527636150.ch13.

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Colombo, Sophie, Irina Berlin, Véronique Delmas, and Lionel Larue. "Classical and Nonclassical Melanocytes in Vertebrates." In Melanins and Melanosomes. Wiley-VCH Verlag GmbH & Co. KGaA, 2011. http://dx.doi.org/10.1002/9783527636150.ch2.

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Riley, Patrick A., Christopher A. Ramsden, and Edward J. Land. "Biological Chemistry of o-Quinones." In Melanins and Melanosomes. Wiley-VCH Verlag GmbH & Co. KGaA, 2011. http://dx.doi.org/10.1002/9783527636150.ch3.

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Conference papers on the topic "Melanosomy"

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Kizilov, Mykyta, Sujeong Jung, Vsevolod Cheburkanov, and Vladislav Yakovlev. "Fluorescence lifetime imaging and signal reconvolution for characterizing laser-induced melanosome degradation." In Multimodal Biomedical Imaging XX, edited by Xavier Intes, Marien Ochoa, and Mohammad A. Yaseen. SPIE, 2025. https://doi.org/10.1117/12.3048829.

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Pustovalov, V. K. "The initiation of the optical breakdown by pigmented melanosomes in the anterior chamber of eye under the laser pulse action." In The European Conference on Lasers and Electro-Optics. Optica Publishing Group, 1996. http://dx.doi.org/10.1364/cleo_europe.1996.cthm5.

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The purpose of this paper is to estimate the influence of melanosomes in the anterior chamber of the eye on the results of short laser pulse action on the eye biotissue in the case of glaucoma of adult patients and children. In the case of glaucoma of adult patients the biotissues in the anterior chamber of the eye mostly contain melanosomes (pigmented granules), which act as absorbing inclusions when irradiated with laser pulses. In contrast to the eye of adult in the case of hydrophthalmia (congenital glaucoma), there are practically no melanosomes in the anterior chamber of the children’s e
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Sun, Jinming, and Bernard S. Gerstman. "Modeling of pressure generation by lasers in melanosomes: how to avoid stress confinement and blow up a melanosome." In BiOS '99 International Biomedical Optics Symposium, edited by Steven L. Jacques, Gerhard J. Mueller, Andre Roggan, and David H. Sliney. SPIE, 1999. http://dx.doi.org/10.1117/12.350044.

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Okabe, Toshiaki, and Kazuhiro Hotta. "Accuracy Improvement of Melanosome Tracking by Error Correction." In 2013 International Conference on Digital Image Computing: Techniques and Applications (DICTA). IEEE, 2013. http://dx.doi.org/10.1109/dicta.2013.6691477.

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Nunez, A. S., M. J. Mendenhall, and K. Gross. "Melanosome level estimation in human skin from hyperspectral imagery." In 2009 First Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS). IEEE, 2009. http://dx.doi.org/10.1109/whispers.2009.5289039.

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"MELANOSOME TRACKING BY BAYES THEOREM AND ESTIMATION OF MOVABLE REGION." In International Conference on Pattern Recognition Applications and Methods. SciTePress - Science and and Technology Publications, 2012. http://dx.doi.org/10.5220/0003836104820487.

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Glickman, Randolph D., Steven L. Jacques, Rebecca M. Hall, and Neeru Kumar. "Revisiting the internal absorption coefficient of the retinal pigment epithelium melanosome." In BiOS 2001 The International Symposium on Biomedical Optics, edited by Donald D. Duncan, Steven L. Jacques, and Peter C. Johnson. SPIE, 2001. http://dx.doi.org/10.1117/12.434697.

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Rose, April A. N., Matthew G. Annis, Dennie T. Frederick, et al. "Abstract 296: Targeting the melanosome: overcoming MAPK-inhibitor resistance in melanoma." In Proceedings: AACR 107th Annual Meeting 2016; April 16-20, 2016; New Orleans, LA. American Association for Cancer Research, 2016. http://dx.doi.org/10.1158/1538-7445.am2016-296.

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Sun, Jinming, and Bernard S. Gerstman. "Pressure generation in melanosomes by subnanosecond laser pulses." In BiOS '98 International Biomedical Optics Symposium, edited by Steven L. Jacques. SPIE, 1998. http://dx.doi.org/10.1117/12.308161.

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Neumann, Joerg, and Ralf Brinkmann. "Microbubble dynamics around melanosomes irradiated with microsecond pulses." In International Symposium on Biomedical Optics, edited by Steven L. Jacques, Donald D. Duncan, Sean J. Kirkpatrick, and Andres Kriete. SPIE, 2002. http://dx.doi.org/10.1117/12.472539.

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Reports on the topic "Melanosomy"

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Paul, Satashree. Skin Cancer: Prevalent in Caucasians. Science Repository, 2020. http://dx.doi.org/10.31487/sr.blog.21.

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More number of melanized melanosomes present in darker-skinned groups absorb and scatter more energy than do the smaller number of melanosomes. The color of the skin is a primary reason behind the occurrence of skin cancer.
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