Reviews & Analysis

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  • Cancer vaccines can elicit tumor-specific T cells, but sustaining their function via immune checkpoint therapy (ICT) may be required for robust anti-tumor immunity. A new study reveals that neoantigen cancer vaccines synergize with anti-PD-L1 ICT in a preclinical model and provides mechanistic insights into this synergy.

    • Alexander S. Shavkunov
    • Matthew M. Gubin
    News & Views
  • Mitochondrial fission in macrophages is essential for the phagocytosis of tumor cells. Resistance of tumor cells to phagocytosis involves overexpression of GFPT2, an enzyme involved in glutamine metabolism; this results in lower nutrient availability for macrophages to support mitochondrial fission and prevents assembly of the phagocytic machinery.

    Research Briefing
  • Patients with KRAS-mutant colorectal cancers do not respond to cetuximab, a monoclonal antibody against EGFR. A new proof-of-concept study presents a bispecific antibody with the ability to trigger EGFR degradation in LGR5+ cancer stem cells, and robust anti-tumor activity in KRAS-mutant and wild-type colorectal cancers.

    • Norihiro Goto
    • Ömer H. Yilmaz
    News & Views
  • Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors have revolutionized the treatment of EGFR-mutant non-small cell lung cancer; however, secondary resistance limits their efficacy, emphasizing the need for newer approaches. A study now shows preclinical development of allosteric EGFR inhibitors that overcome acquired therapy resistance.

    • Michelangelo Marasco
    • Sandra Misale
    News & Views
  • Severe side effects limit the therapeutic potential of checkpoint control and immunomodulatory antibodies in immunotherapy of cancer. A new study demonstrates that bispecific antibodies directing the immunostimulatory activity of CD40-specific antibodies on dendritic cell subsets may allow a greater therapeutic window of opportunity.

    • Julian Hübner
    • Falk Nimmerjahn
    News & Views
  • Cellular communication in the tumor microenvironment is crucial for T cell activation; however, the molecular features of the T cell–antigen-presenting cell interaction are still poorly understood. A new study utilizes RNA sequencing of physically interacting cells to reveal that PD-1+CXCL13+ helper T cells in tumors, primed by dendritic cells, are important for the response to immunotherapy.

    • Ting Zhang
    • Chen Dong
    News & Views
  • Two of the first patients with cancer treated with chimeric antigen receptor-modified (CAR) T cells have been cancer free for a decade. A new study uses single-cell sequencing technologies to provide a window into the evolution of their CAR T cells over the course of the ten-year remission period.

    • Marcela V. Maus
    News & Views
  • The mitochondrial arm of the one-carbon pathway, which is essential for nucleotide synthesis, becomes dominant in cancer cells due to overexpression of several enzymes of the pathway, including MTHFD2. A study now reports on a high-affinity inhibitor of MTHFD2 that starves cancer cells of DNA building blocks and shows potential for selective tumor targeting.

    • Vasilis S. Dionellis
    • Thanos D. Halazonetis
    News & Views
  • Wells and colleagues discuss emerging insights into bystander T cells, including analytical methods, the role of bystander T cell subtypes in tumor immunology and the potential ways that these cells can be leveraged to improve cancer immunotherapy.

    • Stefanie L. Meier
    • Ansuman T. Satpathy
    • Daniel K. Wells
    Perspective
  • Neutrophils may obtain either pro- or anti-tumorigenic phenotypes depending on environmental cues. A new study reports that cancer radiotherapy induces a neutrophilic response associated with tissue repair and leads to enhanced metastatic spread, highlighting a mechanism by which neutrophils promote metastatic tumor growth.

    • Adina Heinberg
    • Zvi Granot
    News & Views
  • New research shows that comprehensively characterized patient-derived xenografts (PDXs) of breast cancer can be adapted to high-throughput drug screening and can be used as personalized patient avatars to inform clinical decision-making. This work substantially enhances the repertoire and sophistication of PDXs for research into breast cancer.

    • Neil Portman
    • Elgene Lim
    News & Views
  • Although many potential targets have been identified, effective, specific therapies for metastatic cancers are still lacking. Two studies now identify small-molecule inhibitors of MTDH–SND1 interaction that potently suppress breast cancer progression and metastasis via concerted cancer-cell-autonomous effects and immune modulation.

    • Qingwen Jiang
    • Karuna Ganesh
    News & Views
  • The architecture of tumor collagen greatly influences tumor biology and therapeutic response. Two new studies identify tumor DDR1 as a central player in stromal collagen deposition and organization in the primary tumor and in disseminated tumor cells, resulting in immune exclusion or sustained dormancy, respectively.

    • Birgit Leitinger
    News & Views
  • A potential translational strategy to treat brain metastases is the induction or maintenance of proliferative dormancy in tumor cells. A new study shows that dormancy in breast cancer brain metastasis is maintained in the perivascular niche by astrocyte endfoot secretion of laminin-211, causing tumor cell membrane sequestration of YAP.

    • Imran Khan
    • Patricia S. Steeg
    News & Views
  • Hwang and colleagues discuss recent advances and current challenges in developing immunotherapies for pediatric brain cancer, as well as the clinical implications of ongoing and completed studies.

    • Eugene I. Hwang
    • Elias J. Sayour
    • Ian F. Pollack
    Review Article