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Heme Metabolism in Oncogenesis and Tumor Microenvironment: Mechanisms and Emerging Therapeutic Strategies

A special issue of Cancers (ISSN 2072-6694). This special issue belongs to the section "Tumor Microenvironment".

Deadline for manuscript submissions: closed (31 October 2025) | Viewed by 1632

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Guest Editor
1. USF Genomics Program, Center for Global Health and Infectious Diseases, College of Public Health, University of South Florida, Tampa, FL 33612, USA
2. Global Health, College of Public Health, University of South Florida, Tampa, FL 33612, USA
Interests: cancer metabolism and redox biology; tumor microenvironment; high-resolution multi-omics and spatial genomics; AI-driven data integration; oncogenic signaling and therapeutic targeting; translation of metabolic insights into precision oncology
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Guest Editor
1. Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
2. Department of Chemistry, College of Arts and Sciences, University of South Florida, Tampa, FL 33620, USA
Interests: biochemistry and enzymology of cellular metabolism; enzyme structure and function; cofactor and metal homeostasis; redox regulation and metabolic signaling; metabolic disorders and enzymopathies; biochemical pathways linking metabolism to cancer
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Heme metabolism plays a crucial role in cancer development and the tumor microenvironment. Aberrations in heme and porphyrin biosynthesis and regulation have been implicated in oncogenesis, influencing tumor progression, immune evasion, and redox homeostasis. Emerging evidence, including insights from recent CRISPR screens, highlights heme metabolism as a central pathway in various cancers. This Special Issue seeks contributions that explore mechanistic insights into the role of heme and porphyrins in cancer biology, as well as therapeutic strategies targeting heme biosynthesis and metabolism. We encourage the submission of research spanning molecular and cellular mechanisms to translational approaches, focusing on how altering heme pathways could present novel treatment options in cancer therapy.

Dr. Rays H.Y. Jiang
Prof. Dr. Gloria C. Ferreira
Guest Editors

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Keywords

  • heme metabolism
  • oncogenesis
  • tumor microenvironment
  • porphyrin biosynthesis
  • redox homeostasis
  • cancer metabolism
  • heme biosynthesis pathways
  • CRISPR screening
  • iron metabolism
  • therapeutic targeting of heme pathways

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Published Papers (1 paper)

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Research

20 pages, 3824 KB  
Article
Spatial Transcriptomics Reveals Distinct Architectures but Shared Vulnerabilities in Primary and Metastatic Liver Tumors
by Swamy R. Adapa, Sahanama Porshe, Divya Priyanka Talada, Timothy M. Nywening, Mattew L. Anderson, Timothy I. Shaw and Rays H. Y. Jiang
Cancers 2025, 17(19), 3210; https://doi.org/10.3390/cancers17193210 - 1 Oct 2025
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Abstract
Background: Primary hepatocellular carcinoma (HCC) and liver metastases differ in origin, progression, and therapeutic response, yet a direct high-resolution spatial comparison of their tumor microenvironments (TMEs) within the liver has not previously been performed. Methods: We applied high-definition spatial transcriptomics to [...] Read more.
Background: Primary hepatocellular carcinoma (HCC) and liver metastases differ in origin, progression, and therapeutic response, yet a direct high-resolution spatial comparison of their tumor microenvironments (TMEs) within the liver has not previously been performed. Methods: We applied high-definition spatial transcriptomics to fresh-frozen specimens of one HCC and one liver metastasis (>16,000 genes per sample, >97% mapping rates) as a proof-of-principle two-specimen study, cross-validated in human proteomics and patients’ survival datasets. Transcriptional clustering revealed spatially distinct compartments, rare cell states, and pathway alterations, which were further compared against an independent systemic dataset. Results: HCC displayed an ordered lineage architecture, with transformed hepatocyte-like tumor cells broadly dispersed across the tissue and more differentiated hepatocyte-derived cells restricted to localized zones. By contrast, liver metastases showed two sharply compartmentalized domains: an invasion zone, where proliferative stem-like tumor cells occupied TAM-rich boundaries adjacent to hypoxia-adapted tumor-core cells, and a plasticity zone, which formed a heterogeneous niche of cancer–testis antigen–positive germline-like cells. Across both tumor types, we detected a conserved metabolic program of “porphyrin overdrive,” defined by reduced cytochrome P450 expression, enhanced oxidative phosphorylation gene expression, and upregulation of FLVCR1 and ALOX5, reflecting coordinated rewiring of heme and lipid metabolism. Conclusions: In this pilot study, HCC and liver metastases demonstrated fundamentally different spatial architectures, with metastases uniquely harboring a germline/neural-like plasticity hub. Despite these organizational contrasts, both tumor types converged on a shared program of metabolic rewiring, highlighting potential therapeutic targets that link local tumor niches to systemic host–tumor interactions. Full article
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