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Vousden and colleagues discuss the multifactorial role of mitochondrial folate metabolism in cancer and metastasis and reflect on potential therapeutic opportunities.
We performed a proof-of-concept study showing that single-cell RNA sequencing, a method for capturing rich tumor information (not yet in clinics owing to high costs), can be used to identify patients likely to respond to targeted therapy and to monitor the emergence of resistance.
Sarcomas are heterogeneous connective tissue tumors that occur at various anatomic sites and are generally difficult to treat. Cell states in sarcoma ecosystems are now shown to be conserved across multiple subtypes and associated with response to immunotherapy and patient outcome.
Arginine methylation is crucial for tumor maintenance. PRMT9 levels are elevated in acute myeloid leukemia, and its inhibition eradicates leukemia by diminishing arginine methylation of proteins involved in DNA damage response and RNA translation. This activates the cGAS–STING pathway, which triggers immune responses directed against leukemia. Epigenetic targeting of DNA-damage-response mechanisms may bolster anti-tumor immunity.
In this phase 1 trial, Hegde et al. treat 13 individuals with advanced sarcoma with lymphodepletion followed by HER2-specific CAR T cells, which were found to be safe and showed antitumor activity.
Barker and colleagues discuss the interplay between circadian rhythm, the tumor microenvironment and stem cells and how these are linked to metastasis as well as how these interactions could be clinically relevant.
Merz and colleagues perform single-cell multiomic analysis of mononuclear cells isolated from individuals receiving BCMA-directed CAR T cell therapy for myeloma and show that nonresponders are characterized by an immune-suppressive microenvironment.
Sinha and colleagues present PERCEPTION, a precision oncology computational pipeline that can predict the response and resistance of patients by analyzing single-cell transcriptomic data from their tumor samples.
Lawson et al. show that genetic inactivation of Phd1 or Phd2 hinders progression of AML and compromises leukemic stem cells. They develop a selective PHD inhibitor IOX5 and show therapeutic efficacy in AML, which can be potentiated with venetoclax.
Ye and colleagues show that an oncolytic virus that delivers tumor-irrelevant bystander T cell epitopes to tumor cells can exploit the abundant population of bystander T cells in the tumor for anti-tumor immunity and potentiate cancer immunotherapy.
A CRISPR dropout screen for tRNA regulators identified YRDC as the top essential gene in glioblastoma stem cells. Threonine acts as a substrate of YRDC to facilitate the N6-threonylcarbamoyladenosine (t6A) tRNA modification and shift translation toward mitosis-related genes with a codon bias. Our findings support targeting glioblastoma growth by a well-tolerated dietary therapy.
Chapeau et al. develop a nonallosteric inhibitor of the interaction between YAP and all four TEAD proteins. Treatment with the inhibitor, either as monotherapy or in combination with other treatment modalities, leads to induction of cell death in several in vivo cancer models.
A study reports that survivors of childhood cancer age faster than healthy controls and have increased risk of frailty and death; however, heterogeneity in outcomes was present, indicating inequities in risk. Knowledge about aging in high-risk groups holds the potential to identify interventions to improve survivorship outcomes.
Guida et al. assess seven measures of biological age in SJLIFE Cohort and reveal that survivors of cancer age faster than healthy controls and have increased risk of frailty and death. The aging trajectory is further affected by cancer type and therapy.
Effectively targeting deregulated KRAS signaling remains an unmet clinical need, as current approaches commonly lead to the development of chemoresistance in clinical settings. ADAM9-mediated lysosomal KRAS degradation is now shown to counteract PDAC chemoresistance independently of mutational status.
Identifying which patients will benefit most from immune checkpoint blockade (ICB) is an important clinical challenge. A study now finds that Vδ1+ γδ T cells are associated with better response to ICB in melanoma tumors with a lower neoantigen load and shows that some effector functions of PD-1+ Vδ1+ T cells are repressed after engagement of PD-1 by PD-L1.