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Multidisciplinary Sciences
Maria Romanova-Michaelides, Zena Hadjivasiliou, Daniel Aguilar-Hidalgo, Dimitris Basagiannis, Carole Seum, Marine Dubois, Frank Juelicher, Marcos Gonzalez-Gaitan
Summary: Research has found that scaling of the Dpp gradient in the Drosophila wing disc is achieved by increasing the contribution of internalized Dpp molecules to Dpp transport, regulated by the extracellular factor Pentagone. This evolutionary mechanism may act on endocytic trafficking to regulate the range and scaling of the gradient, allowing adaptation of shape and pattern to different sizes of organs in different species.
Article
Multidisciplinary Sciences
Fredrik Sadler, Ning Ma, Michael Ritt, Yatharth Sharma, Nagarajan Vaidehi, Sivaraj Sivaramakrishnan
Summary: The third intracellular loop (ICL3) of G protein-coupled receptors (GPCRs) plays a crucial role in the signal transduction process. It has been found that ICL3 regulates receptor activity through a dynamic conformational equilibrium and influences receptor pharmacology and signaling specificity. Furthermore, ICL3 inhibits receptor coupling to weakly coupled G protein subtypes, thus expanding the range of mechanisms by which receptors mediate G protein subtype selective signaling. These findings suggest that ICL3 may serve as an allosteric site for receptor- and signaling pathway-specific ligands.
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Biochemistry & Molecular Biology
Donghwa Kim, Maria Castano, Lauren K. Lujan, Jung A. Woo, Stephen B. Liggett
Summary: The functional desensitization of bitter taste receptor TAS2R14 occurs through GRK phosphorylation of CT residues and beta-arrestin binding. Additionally, beta-arrestin's role in the internalization and trafficking of the receptor also requires GRK phosphorylation of IL3 residues.
JOURNAL OF BIOLOGICAL CHEMISTRY
(2021)
Article
Neurosciences
Suzanne M. Underhill, Susan G. Amara
Summary: Stimulation of M-1/M-5 muscarinic receptors in midbrain cultures has been found to decrease the ability of dopamine neurons to transport dopamine through DAT. Cholinomimetic drugs lead to a decrease in DAT activity, while M-1/M-5-specific antagonists can block these effects, implicating M-1/M-5 receptors in the modulation of DAT function on dopamine neurons.
FRONTIERS IN CELLULAR NEUROSCIENCE
(2021)
Article
Cell Biology
Swathy O. Vasudevan, Ashley J. Russo, Puja Kumari, Sivapriya Kailasan Vanaja, Vijay A. Rathinam
Summary: CD14 plays a vital role in intracellular LPS sensing by mediating the cytosolic localization of LPS, leading to the activation of caspase-11. This study provides evidence for the critical role of CD14 in noncanonical inflammasome sensing of LPS.
Article
Biochemistry & Molecular Biology
Melissa Girard, Steve Dagenais Bellefeuille, Emilie Eiselt, Guillaume Arguin, Jean-Michel Longpre, Philippe Sarret, Fernand-Pierre Gendron
Summary: This study found that endosomal trafficking plays an important role in G protein-coupled receptor (GPCR) signaling. UDP selectively activates GPCR P2Y6 as a signaling molecule. The study found that MRS2693 and UDP have different effects on the internalization of the P2Y6 receptor, with MRS2693 inducing P2Y6 internalization through an independent caveolin-dependent mechanism. This study provides insights for the development of bias ligands that can influence P2Y6 signaling.
BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH
(2023)
Review
Oncology
Yanyang Cao, Eileen Chen, Xuan Wang, Jingwen Song, Haiyun Zhang, Xiaozhuo Chen
Summary: Despite advancements in cancer treatment, metastasis remains a major cause of cancer-related death. Epithelial-Mesenchymal Transition (EMT) plays a crucial role in cancer invasion and progression. Recent research has highlighted the importance of extracellular adenosine 5'- triphosphate (eATP) in promoting tumor growth and metastasis.
CANCER CELL INTERNATIONAL
(2023)
Article
Biochemistry & Molecular Biology
Kate M. Crowther, Susanne M. Mesoy, Sarah C. R. Lummis
Summary: This study identified the important M1 residues in GABA(A rho) receptors using mutagenesis and functional assays. The results provide insights into the functional properties of these residues and their differences among subunits. These findings are significant for understanding the mechanism of GABA(A rho) receptor function.
Article
Multidisciplinary Sciences
Maxemiliano V. Vargas, Lee E. Dunlap, Chunyang Dong, Samuel J. Carter, Robert J. Tombari, Shekib A. Jami, Lindsay P. Cameron, Seona D. Patel, Joseph J. Hennessey, Hannah N. Saeger, John D. McCorvy, John A. Gray, Lin Tian, David E. Olson
Summary: Decreased dendritic spine density in the cortex is a common feature of neuropsychiatric diseases, and psychedelics have been found to promote cortical neuron growth. This study shows that intracellular 5-HT2A receptors mediate the plasticity-promoting effects of psychedelics, providing insight into the mechanisms behind their therapeutic effects. The findings suggest that targeting intracellular 5-HT2A receptors could be a potential therapeutic approach.
Article
Biochemistry & Molecular Biology
Yulin Tian, Ming Fang, Qing Lin
Summary: The intracellular fluorescent labeling of GCGR ICL3 using a bioorthogonal chemistry strategy was achieved successfully, but faced challenges in live-cell imaging studies due to the interference of specific and non-specific signals. Further research is needed to overcome these challenges and improve the specificity of the labeling reactions.
BIOORGANIC & MEDICINAL CHEMISTRY
(2021)
Article
Multidisciplinary Sciences
Takenobu Katagiri, Sho Tsukamoto, Mai Kuratani, Shinnosuke Tsuji, Kensuke Nakamura, Satoshi Ohte, Yoshiro Kawaguchi, Kiyosumi Takaishi
Summary: Mutations in the transmembrane receptor activin receptor-like kinase 2 (ALK2) cause abnormal signaling in various genetic diseases. The authors found that disease-associated ALK2 forms can dimerize intracellularly upon ligand binding. They developed a blocking antibody that inhibits ALK2 signaling and demonstrated its potential in suppressing pathological bone formation in a mouse model of fibrodysplasia ossificans progressiva.
NATURE COMMUNICATIONS
(2023)
Article
Biochemistry & Molecular Biology
Przemyslaw T. Kaczor, Michal A. Michalowski, Jerzy W. Mozrzymas
Summary: Cys-loop receptors are important in mammalian CNS signaling. Little is known about the GABAA receptor's activation mechanisms. Recent studies have provided structural insights into the GABAA receptor, enabling further molecular functional studies. The interface region between the transmembrane and extracellular domains plays a crucial role in transmitting conformational changes. A highly conserved proline residue within this interface is involved in regulating receptor gating.
ACS CHEMICAL NEUROSCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Nur Aliyah Mohd Azrin, Mohd Shukuri Mohamad Ali, Raja Noor Zaliha Raja Abd Rahman, Fairolniza Mohd Shariff, Nor Hafizah Ahmad Kamarudin, Noor Dina Muhd Noor
Summary: Rand protease, a serine protease with unique characteristics, has been studied for its structure prediction and stability.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2023)
Article
Cell Biology
Takeshi Kimura, Michaela Bosakova, Yosuke Nonaka, Eva Hruba, Kie Yasuda, Satoshi Futakawa, Takuo Kubota, Bohumil Fafilek, Tomas Gregor, Sara P. Abraham, Regina Gomolkova, Silvie Belaskova, Martin Pesl, Fabiana Csukasi, Ivan Duran, Masatoshi Fujiwara, Michaela Kavkova, Tomas Zikmund, Josef Kaiser, Marcela Buchtova, Deborah Krakow, Yoshikazu Nakamura, Keiichi Ozono, Pavel Krejci
Summary: The study demonstrates that RBM-007 can effectively inhibit FGFR3 signaling, repair detrimental effects on cartilage and skeletal development, providing a potential therapeutic approach for achondroplasia and other FGFR3-related skeletal dysplasias.
SCIENCE TRANSLATIONAL MEDICINE
(2021)
Article
Psychiatry
Benjamin C. Reiner, Yafang Zhang, Lauren M. Stein, Emilie Davila Perea, Gabriella Arauco-Shapiro, Jennifer Ben Nathan, Kael Ragnini, Matthew R. Hayes, Thomas N. Ferraro, Wade H. Berrettini, Heath D. Schmidt, Richard C. Crist
Summary: Volitional opioid taking leads to cell type-specific transcriptomic changes in the nucleus accumbens of rats, highlighting specific striatal cell populations and novel molecular substrates that could be targeted to reduce compulsive opioid taking.
TRANSLATIONAL PSYCHIATRY
(2022)
Article
Biochemistry & Molecular Biology
Sebastian Stolzenberg, Zheng Li, Matthias Quick, Lina Malinauskaite, Poul Nissen, Harel Weinstein, Jonathan A. Javitch, Lei Shi
JOURNAL OF BIOLOGICAL CHEMISTRY
(2017)
Article
Biochemistry & Molecular Biology
Caline S. Karam, Namita Sen, Jonathan A. Javitch
JOURNAL OF CHEMICAL NEUROANATOMY
(2017)
Article
Chemistry, Medicinal
Mayako Michino, Comfort A. Boateng, Prashant Donthamsetti, Hideaki Yano, Oluyomi M. Bakare, Alessandro Bonifazi, Michael P. Ellenberger, Thomas M. Keck, Vivek Kumar, Clare Zhu, Ravi Verma, Jeffrey R. Deschamps, Jonathan A. Javitch, Amy Hauck Newman, Lei Shi
JOURNAL OF MEDICINAL CHEMISTRY
(2017)
Article
Chemistry, Multidisciplinary
Prashant C. Donthamsetti, Nils Winter, Matthias Schoenberger, Joshua Levitz, Cherise Stanley, Jonathan A. Javitch, Ehud Y. Isacoff, Dirk Trauner
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2017)
Article
Multidisciplinary Sciences
G. Glenn Gregorio, Matthieu Masureel, Daniel Hilger, Daniel S. Terry, Manuel Juette, Hong Zhao, Zhou Zhou, Jose Manuel Perez-Aguilar, Maria Hauge, Signe Mathiasen, Jonathan A. Javitch, Harel Weinstein, Brian K. Kobilka, Scott C. Blanchard
Review
Behavioral Sciences
Huda Akil, Joshua Gordon, Rene Hen, Jonathan Javitch, Helen Mayberg, Bruce McEwen, Michael J. Meaney, Eric J. Nestler
NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS
(2018)
Article
Multidisciplinary Sciences
Eduardo F. Gallo, Jozsef Meszaros, Jeremy D. Sherman, Muhammad O. Chohan, Eric Teboul, Claire S. Choi, Holly Moore, Jonathan A. Javitch, Christoph Kellendonk
NATURE COMMUNICATIONS
(2018)
Article
Biochemistry & Molecular Biology
Prashant Donthamsetti, Eduardo F. Gallo, David C. Buck, Edward L. Stahl, Ying Zhu, J. Robert Lane, Laura M. Bohn, Kim A. Neve, Christoph Kellendonk, Jonathan A. Javitch
MOLECULAR PSYCHIATRY
(2020)
Article
Multidisciplinary Sciences
Najeah Okashah, Shane C. Wright, Kouki Kawakami, Signe Mathiasen, Joris Zhou, Sumin Lu, Jonathan A. Javitch, Asuka Inoue, Michel Bouvier, Nevin A. Lambert
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2020)
Article
Biochemistry & Molecular Biology
Caline S. Karam, Brenna L. Williams, Sandra K. Jones, Jonathan A. Javitch
Summary: The study reveals that amphetamine affects sleep and activity in fruit flies, with differing effects observed in flies without functional DAT. Amphetamine can reduce activity and restore sleep in these flies by modulating sleep structure. Fruit flies are shown to be a robust model for studying the mechanisms regulating DAT function and the action of psychostimulants.
NEUROCHEMICAL RESEARCH
(2022)
Article
Biochemistry & Molecular Biology
Zixiu Xiang, Xiaohui Lv, Xin Lin, Daniel E. O'Brien, Molly K. Altman, Craig W. Lindsley, Jonathan A. Javitch, Colleen M. Niswender, P. Jeffrey Conn
Summary: Studies have shown that mGluR2 and mGluR4 exist as functional heterodimers, regulating excitatory transmission in a synapse-specific manner within the rodent medial prefrontal cortex. Activation of mGlu(2)/mGlu(4) heterodimers inhibits glutamatergic signaling.
Review
Biochemistry & Molecular Biology
Eleanor H. Simpson, Eduardo F. Gallo, Peter D. Balsam, Jonathan A. Javitch, Christoph Kellendonk
Summary: Research suggests that the etiology of schizophrenia involves overstimulation of dopamine receptors, particularly the D2 receptors. Animal models have shown that alterations in D2 receptor levels can affect the manifestation of schizophrenia symptoms, especially in terms of striatal circuit function and motivated behavior.
MOLECULAR PSYCHIATRY
(2022)
Article
Biochemistry & Molecular Biology
Eduardo F. Gallo, Julia Greenwald, Jenna Yeisley, Eric Teboul, Kelly M. Martyniuk, Joseph M. Villarin, Yulong Li, Jonathan A. Javitch, Peter D. Balsam, Christoph Kellendonk
Summary: Cholinergic interneurons in the striatum respond to salient stimuli with a pause in activity, which is regulated by dopamine D2 receptors. Upregulation of D2Rs in these neurons leads to a prolonged pause in activity and an enhanced decrease in acetylcholine levels during behavior, resulting in a deficit in learning inhibitory responses. This study highlights the important role of CIN D2Rs in modulating responses to salient stimuli and their impact on inhibitory learning.
MOLECULAR PSYCHIATRY
(2022)
Article
Endocrinology & Metabolism
Jacob Emil Petersen, Maria Hauge Pedersen, Oksana Dmytriyeva, Emilie Nellemose, Tulika Arora, Maja Storm Engelstoft, Wesley B. Asher, Jonathan A. Javitch, Thue W. Schwartz, Mette Trauelsen
Summary: The activation of FFAR1 can induce both IP3/Ca2+ signaling pathway and cAMP signaling pathway, and the co-activation of these two pathways is required for the highly efficient hormone secretion induced by second-generation FFAR1 agonists. Adcy2 gene is highly expressed in enteroendocrine cells of the intestine and may mediate Gq-driven cAMP signaling response.
MOLECULAR METABOLISM
(2023)
Article
Biochemistry & Molecular Biology
Jianjun Fan, Yang Xiao, Matthias Quick, Yuwei Yang, Ziyi Sun, Jonathan A. Javitch, Xiaoming Zhou
Summary: The neurotransmitter:sodium symporter (NSS) homolog LeuT from Aquifex aeolicus is a valuable model for studying the transport mechanism of the NSS family. Crystal structures and studies on substrate binding dynamics suggest a potential competition between outward-open and outward-occluded states during substrate transport. The interplay between the protonation state of Glu290 and Na1 binding may regulate the outward-open-to-occluded transition.
JOURNAL OF BIOLOGICAL CHEMISTRY
(2021)