Review
Pharmacology & Pharmacy
Antonina Alexandrova, Maria Lomakina
Summary: Tumor shrinkage is not the only indicator of treatment success, as cancer progression and metastasis formation play crucial roles. The plasticity of tumor cells in switching between different migration modes contributes to their ability to avoid treatment. Identifying specific markers for migratory plasticity is important for successful treatment.
FRONTIERS IN PHARMACOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Fatemeh Hassani Nia, Daniel Woike, Isabel Bento, Stephan Niebling, Debora Tibbe, Kristina Schulz, Daniela Hirnet, Matilda Skiba, Hans-Hinrich Hoenck, Katharina Veith, Christian Guenther, Tasja Scholz, Tatjana Bierhals, Joenna Driemeyer, Renee Bend, Antonio Virgilio Failla, Christian Lohr, Maria Garcia Alai, Hans-Juergen Kreienkamp
Summary: This study investigates the impact of two mutations in the SHANK2 gene on neurodevelopment. The results show that these mutations disrupt the interactions of Shank2 with other proteins, leading to abnormal assembly of postsynaptic protein complexes into nanoclusters. This interference affects the positioning of neurons and synaptic transmission, ultimately impacting normal brain development in humans.
MOLECULAR PSYCHIATRY
(2022)
Article
Biochemistry & Molecular Biology
Sansa Dutta, Dipayan Bose, Semanti Ghosh, Abhijit Chakrabarti
Summary: Cytoskeletal drugs have potential therapeutic benefits by acting on cytoskeletal components. This study investigates the interaction of popular cytoskeletal drugs with spectrin and their effect on actin cytoskeleton dynamics. The results indicate moderate affinity binding with the actin binding domain of spectrin, driven by entropy and hydrophobic interactions.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2023)
Review
Biochemistry & Molecular Biology
Jing Gao, Fumihiko Nakamura
Summary: This review article introduces actin-associated proteins (AAPs) and their roles in regulating cell movement, shape change, division, organelle localization, and trafficking. The article lists all discovered AAPs and allows sorting based on various criteria. It also provides links to databases for accessing detailed information about protein structures, expression levels, mutations, and pathology. Additionally, small molecules targeting actin and AAPs with potential for treating diseases are listed.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Multidisciplinary Sciences
Nikolas Hundt, Daniel Cole, Max F. Hantke, Jack J. Miller, Weston B. Struwe, Philipp Kukura
Summary: This study uses mass photometry to investigate the polymerization process of actin and finds that the traditional nucleation-based models cannot explain the observed distribution of actin oligomers. Instead, the key step of filament formation is a slow transition between different states of an actin filament mediated by cation exchange or ATP hydrolysis. These findings have important implications for understanding the mechanism of actin nucleation and studying protein assembly at the molecular level.
Review
Cell Biology
Weida Ren, Wanyu Zhao, Lingbo Cao, Junqi Huang
Summary: Research on programmed cell death (PCD) reveals that cells undergo orderly cell death through evolutionary regulatory mechanisms, with actin playing a crucial role in cellular processes. Scientists aim to further understand the intricate relationship between PCD and the actin cytoskeleton.
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
(2021)
Article
Biology
Arkaprabha Basu, Manash K. Paul, Mitchel Alioscha-Perez, Anna Grosberg, Hichem Sahli, Steven M. Dubinett, Shimon Weiss
Summary: This study presents a computational method for quantifying actin stress fiber alignment in fluorescence images of cultured cells, which can detect changes in stress fiber organization during EMT. The study also identifies an intermediate EMT state with a specific cytoskeletal signature and partitions EMT into two steps. Additionally, the study introduces a figure of merit, the Orientational Order Parameter (OOP), to track EMT progression and characterize the cytoskeletal response to drugs in live cells. The developed image quantification tool, SPOCC, has improved throughput and non-destructiveness, making it suitable for studying various biological processes.
COMMUNICATIONS BIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Henriett Halasz, Zoltan Szatmari, Krisztina Kovacs, Miklos Koppan, Szilard Papp, Edina Szabo-Meleg, David Szatmari
Summary: The ionic environment within the nucleoplasm might diverge from the conditions found in the cytoplasm, potentially playing a role in the cellular stress response. The interactions of nuclear actin and actin-binding proteins with apoptosis factors may differ in the nucleoplasm and cytoplasm. The presence of JMY protein in both the cytoplasm and nucleoplasm suggests its involvement in cytoskeletal remodeling and motility regulation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Multidisciplinary Sciences
Julea Vlassakis, Louise L. Hansen, Ryo Higuchi-Sanabria, Yun Zhou, C. Kimberly Tsui, Andrew Dillin, Haiyan Huang, Amy E. Herr
Summary: This research introduces a novel method to simultaneously detect protein complexes in stressed cell populations, revealing potential cellular responses to specific treatments. The study also highlights the impact of non-chemical stress on cellular heterogeneity of F-actin. The assay developed in this work overcomes selectivity limitations to biochemically quantify single-cell protein complexes perturbed with diverse stimuli.
NATURE COMMUNICATIONS
(2021)
Article
Biochemistry & Molecular Biology
Micaela Boiero Sanders, Christopher P. Toret, Audrey Guillotin, Adrien Antkowiak, Thomas Vannier, Robert C. Robinson, Alphee Michelot
Summary: The use of different actin isoforms in eukaryotic cells and the molecular mechanisms of their segregation into distinct networks are poorly understood. By using yeast as a model, researchers found that the expression of heterologous actin causes significant reorganization of the actin cytoskeleton. However, the expression of two heterologous actin variants, each specialized in assembling a different network, can rescue cytoskeletal organization and increase resistance to external perturbation.
Article
Biochemistry & Molecular Biology
Hugo Wioland, Stephane Fremont, Berengere Guichard, Arnaud Echard, Antoine Jegou, Guillaume Romet-Lemonne
Summary: MICAL1-mediated oxidation of actin filaments amplifies cofilin severing action, bypassing the need for cofilin activation. Direct post-translational oxidation modification of actin filaments in cells triggers their disassembly.
Review
Plant Sciences
Yihao Li, Xin Zhang, Yi Zhang, Haiyun Ren
Summary: This review focuses on the organization and dynamics of actin filaments and microtubule network in guard cells during stomatal movement. The role of cytoskeletal-associated proteins in cytoskeletal rearrangements during stomatal movement is also discussed. The potential mechanisms of stomatal movement in relation to the cytoskeleton are explored, providing a foundation for further research in this field.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Christopher Tsiros, Emily Punch, Emily Schaffter, Sabrina Apel, Matthew J. Gage
Summary: Titin, the largest muscle protein, plays a crucial role in muscle tension, sarcomeric integrity, and cell signaling. This study demonstrates that the N2A region of Titin binds to F-actin through specific domains, and this binding is length-dependent and calcium-dependent.
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
(2022)
Review
Chemistry, Multidisciplinary
Marrit M. E. Tholen, Roderick P. Tas, Yuyang Wang, Lorenzo Albertazzi
Summary: In the last decade, point accumulation for imaging in nanoscale topography (PAINT) has become a versatile tool for single-molecule localization microscopy (SMLM). Currently, DNA-PAINT is widely used to reconstruct specific characteristics of biological or synthetic materials on a single-molecule level. However, there is a growing demand for PAINT probes that do not depend on DNA. These probes can be based on various interactions and provide complementary applications for SMLM. Researchers have been expanding the PAINT toolbox with new probes that go beyond DNA, which are discussed in this review.
CHEMICAL COMMUNICATIONS
(2023)
Article
Biochemistry & Molecular Biology
Lydia K. Muranova, Vladislav M. Shatov, Andrei V. Slushchev, Nikolai B. Gusev
Summary: It is suggested that small heat shock proteins interact directly with actin and have an impact on the formation and stability of actin filaments. However, the analysis of the interaction between recombinant human small heat shock protein HspB7 and skeletal muscle actin revealed that HspB7 is not a genuine actin-binding protein. Its effect on actin filaments seems to be determined by its interaction with minor regulatory proteins of actin filaments.
Article
Cell Biology
Gaurav N. Joshi, Alexandra M. Goetjen, David A. Knecht
MOLECULAR BIOLOGY OF THE CELL
(2015)
Article
Cell Biology
Renee M. Gilberti, David A. Knecht
MOLECULAR BIOLOGY OF THE CELL
(2015)
Article
Biochemistry & Molecular Biology
Luke Tweedy, David A. Knecht, Gillian M. Mackay, Robert H. Insall
Article
Multidisciplinary Sciences
Peggy Paschke, David A. Knecht, Augustinas Silale, David Traynor, Thomas D. Williams, Peter A. Thomason, Robert H. Insall, Jonathan R. Chubb, Robert R. Kay, Douwe M. Veltman
Article
Biochemistry & Molecular Biology
Gaurav N. Joshi, David A. Knecht
Article
Cell Biology
Michael G. Lemieux, Dani Janzen, Rander Hwang, Jeannette Roldan, Irene Jarchum, David A. Knecht
Article
Cell Biology
Douwe M. Veltman, Michael G. Lemieux, David A. Knecht, Robert H. Insall
JOURNAL OF CELL BIOLOGY
(2014)
Article
Chemistry, Physical
Zheng Ren, Yanbing Guo, Gregory Wrobel, David A. Knecht, Zhonghua Zhang, Haiyong Gao, Pu-Xian Gao
JOURNAL OF MATERIALS CHEMISTRY
(2012)
Article
Engineering, Biomedical
Xiaohua Yu, Haibo Qu, David A. Knecht, Mei Wei
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
(2009)
Article
Multidisciplinary Sciences
David A. Knecht, Rebecca A. LaFleur, Alem W. Kahsai, Christian E. Argueta, Anwar B. Beshir, Gabriel Fenteany
Article
Multidisciplinary Sciences
Lindsey M. Costantini, Renee M. Gilberti, David A. Knecht
Article
Biochemistry & Molecular Biology
Andrew J. Muinonen-Martin, Olivia Susanto, Qifeng Zhang, Elizabeth Smethurst, William J. Faller, Douwe M. Veltman, Gabriela Kalna, Colin Lindsay, Dorothy C. Bennett, Owen J. Sansom, Robert Herd, Robert Jones, Laura M. Machesky, Michael J. O. Wakelam, David A. Knecht, Robert H. Insall
Article
Multidisciplinary Sciences
Kathryn M. Pietrosimone, Xiuyin Yin, David A. Knecht, Michael A. Lynes
JOVE-JOURNAL OF VISUALIZED EXPERIMENTS
(2012)
Article
Multidisciplinary Sciences
Peggy Paschke, David A. Knecht, Thomas D. Williams, Peter A. Thomason, Robert H. Insall, Jonathan R. Chubb, Robert R. Kay, Douwe M. Veltman
JOVE-JOURNAL OF VISUALIZED EXPERIMENTS
(2019)
Article
Acoustics
Varun Vyas, Michael Lemieux, David A. Knecht, Oleg V. Kolosov, Bryan D. Huey
ULTRASONICS SONOCHEMISTRY
(2019)