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Current Issue Cover

Science

  • Volume 381
  • Issue 6660
  • August 2023
Current Issue Cover
Current Issue Cover

COVER This image depicts whole chromosomes, some with structural abnormalities that might be found in cancer. The idea that cancer cells have aneuploidy—abnormal numbers of chromosomes and chromosome portions—has been known for decades. Using modern biological tools, Girish et al. engineered cancer cells with and without specific chromosome abnormalities, showing how tumors rely on them for survival and clarifying the biological role of aneuploidy. See p. eadg4521.

Image: A. Mastin/Science

Current Issue Cover

Science Advances

  • Volume 9
  • Issue 34
  • August 2023
Current Issue Cover
Current Issue Cover

ONLINE COVER Deep-sea mussels obtain nutrition through symbiosis with bacteria in chemosynthetic ecosystems, such as hydrothermal vents. The symbionts are acquired through phagocytosis, and their intracellular maintenance is crucial for symbiosis in mussels. Tame et al. identified the key roles of the mechanistic target of rapamycin complex 1 (mTORC1). The protein acts as a mediator for sensing nutrients from symbionts and regulating phagosome digestion of symbionts in the host mussels. The authors discovered that mTORC1 allows integration of the cellular functions of feeding, immune defense, and nutrient signaling through interactions between host and microbe.

Credit: JAMSTEC
Current Issue Cover

Science Immunology

  • Volume 8
  • Issue 86
  • August 2023
Current Issue Cover
Current Issue Cover

ONLINE COVER A Niche for Gut Macrophages. Intestinal macrophages are a heterogenous population that contributes to gut homeostasis and host defense. Chiaranunt et al. identify solitary isolated lymphoid tissue (SILT) as a specialized niche for integrating microbial and host-derived signals to guide colonic monocyte-derived macrophage differentiation. This month’s cover depicts macrophage development in SILT as flowering lily pads, which require the support of group 3 innate lymphoid cells and energy provided by a diverse microbial ecosystem.

Credit: Carolina de Amat Herbozo
Current Issue Cover

Science Robotics

  • Volume 8
  • Issue 81
  • August 2023
Current Issue Cover
Current Issue Cover

ONLINE COVER Estimating Uncertainty—A Deep Learning Framework for Estimating Uncertainty in Optical Flow for Real-Time Control of Robots. Sanket, Singh et al. report on a generalized formulation, Ajna, that was deployed on an aerial robot with a single monocular camera and onboard computing. The approach was used for various robotic tasks, such as dodging dynamic obstacles, navigating static obstacles, and flying through unknown gaps, as well as computer vision tasks, such as segmentation of an unknown object pile. This month’s cover is a time-lapse image of a drone using the Ajna framework to navigate around static obstacles.

Credit: Nitin J. Sanket/Perception and Autonomous Robotics Group, Worcester Polytechnic Institute
Current Issue Cover

Science Signaling

  • Volume 16
  • Issue 799
  • August 2023
Current Issue Cover
Current Issue Cover

ONLINE COVER This week, Gunaratne et al. and Saito et al. address the mechanisms by which NAADP and a functional mimetic activate two-pore channels (TPCs). The image shows the structure of human TPC2 in the open state and bound to ligand (not shown). The two subunits of the channel are shown in different colors.

Image: PDB 6NQ0
Current Issue Cover

Science Translational Medicine

  • Volume 15
  • Issue 710
  • August 2023
Current Issue Cover
Current Issue Cover

ONLINE COVER Neutralizing RSV Variants. The cover image shows the respiratory syncytial virus (RSV) trimeric prefusion (PreF) protein (shades of gray), with amino acid sites that have the potential to impact antibody neutralization highlighted in red. The Ã? and V antigenic sites are highlighted in yellow and blue, respectively. Although the fusion glycoprotein of RSV is more highly conserved than other viral glycoproteins, variation does exist between RSV strains. Here, Sacconnay et al. investigated if these variants could impact the efficacy of RSV vaccines. The authors found that vaccination with the recently approved RSVPreF3 vaccine elicited antibodies in mice, cows, and older adults that could neutralize antigenically distinct strains of RSV. These results suggest that recipients of RSV PreF vaccines should have protection against current, and possibly future, RSV variants.

Credit: Sacconnay et al./Science Translational Medicine