Shadi Zerehpoosh¹, Yasuhito Tanaka², Said A. Al-Busafi^3,4, Gulnara Aghayeva⁵, Samir Rouabhia⁶, Qiuwei Pan⁷, Mohammed Eslam^1,*

Oncology Research, Vol.34, No.6, 2026, DOI:10.32604/or.2026.076937 - 21 May 2026

Abstract Hepatocellular carcinoma (HCC) represents a critical global health challenge, standing as a leading cause of cancer mortality with a significant and projected increasing incidence worldwide. A primary hurdle in HCC management is late diagnosis, often attributable to the absence of early symptoms. Despite considerable advancements in therapeutic strategies over the past decade, including immune checkpoint inhibitors and targeted therapies, mortality rates remain high, underscoring the urgent need for more effective novel approaches. The inherent molecular complexity and heterogeneity of HCC, where only a minority of tumors possess readily targetable drivers, contribute to treatment resistance and More >

Yiyang Zhao¹, Changchang Sun¹, Qihan Dong², Jiangyang He¹, Yan Wang^1,3,*, Ling Bi^1,*

Oncology Research, Vol.34, No.6, 2026, DOI:10.32604/or.2026.076499 - 21 May 2026

Abstract Liquid-liquid phase separation (LLPS) is an emerging biophysical principle that governs subcellular organization through the formation of dynamic, membraneless biomolecular condensates. This review aims to elucidate the multifaceted mechanisms by which dysregulated LLPS drives cancer drug resistance and to explore therapeutic strategies targeting oncogenic biomolecular condensates for improved anticancer outcomes. We synthesize evidence demonstrating that dysregulated LLPS drives cancer drug resistance through diverse mechanisms, including sustaining oncogenic transcription despite targeted therapies, creating physical barriers against chemotherapeutics, modulating immune checkpoint activity, enhancing DNA damage repair, promoting cancer stemness and radioresistance. By integrating insights from cell cycle More >

Pengtao Hu¹, Junjie Sun¹, Jian Lu², Chunlei Ge³, Hanzhi Sun¹, Chengyu Lv^1,*

Oncology Research, Vol.34, No.5, 2026, DOI:10.32604/or.2026.076013 - 22 April 2026

Abstract Liver metastases from colorectal cancer (CRC) are a primary cause of poor patient prognosis, closely linked to the liver’s unique tumor microenvironment (TME). Compared to primary tumors, research on the TME of liver metastases remains insufficient. This review systematically summarizes recent advances in TME research concerning colorectal liver metastases (CRLM), emphasizing its organ-specific characteristics, pivotal role in tumor progression, and influence on treatment response. We delve into the intricate cellular components of the TME—including tumor-associated macrophages, cancer-associated fibroblasts, and myeloid-derived suppressor cells—and non-cellular constituents such as the extracellular matrix and soluble factors. Furthermore, we explore More >

Omar Badran^1,2,*, Siraj Attarya³

Oncology Research, Vol.34, No.5, 2026, DOI:10.32604/or.2026.075916 - 22 April 2026

Abstract Extrachromosomal DNA (ecDNA) constitutes a principal factor in the amplification of oncogenes and the progression of tumors in solid malignancies. This review synthesizes emerging mechanistic, genomic, and immunologic evidence across multiple tumor types, including glioblastoma, lung, breast, gastrointestinal, hepatobiliary, urothelial, prostate, gynecologic, pediatric, and head-and-neck cancers, with the goal of clarifying the role of ecDNA in immune escape and therapy resistance and outlining its translational implications for precision oncology. ecDNA comprises substantial acentromeric circular elements that serve as transcriptional hubs, modulate enhancer–promoter interactions, and undergo dynamic copy-number cycling, thereby fostering intratumoral heterogeneity and resistance to… More >

Jun-Hui Chen¹, Si-Run Du¹, Chang Liu¹, Bei-Bei Liu¹, Hai-Ying Xu², Xin-Ying Ji², Bo Feng³, Chun-Zheng Ma³, Jun-Hui Guo^3,*

Oncology Research, Vol.34, No.5, 2026, DOI:10.32604/or.2026.073484 - 22 April 2026

Abstract Esophageal cancer (EC) ranks among the most lethal gastrointestinal malignancies. Due to challenges in early diagnosis, molecular heterogeneity, and therapeutic resistance, patient prognosis remains extremely poor, necessitating the development of novel biomarkers and therapeutic targets. As a core effector of the Hippo signaling pathway, the potential significance of Yes-associated protein 1 (YAP1) has garnered increasing attention. This paper aims to systematically summarize the multi-omics research, molecular mechanisms, and preclinical/translational evidence for YAP1, covering its activation pathways, biological functions, clinical significance, and therapeutic strategies. We elucidated YAP1’s multidimensional regulatory network in EC, including Hippo-dependent and -independent mechanisms, cross-regulation… More >

Mohsina Patwekar^1,2, Faheem Patwekar³, Zulhisyam Abdul Kari^1,4,*, Muhammad Rajaei Ahmad Mohd Zain^5,*, Arifullah Mohammed⁶, Rohit Sharma^7,*

Oncology Research, Vol.34, No.4, 2026, DOI:10.32604/or.2026.073601 - 23 March 2026

Abstract Breast cancer remains the primary cause of cancer-related mortality for women globally; therefore, further breakthroughs in treatment approaches are crucial. Palbociclib, ribociclib, and abemaciclib are among the Cyclin-dependent kinase 4 and 6 (CDK4/6) inhibitors that have become an innovative family of targeted therapy for hormone receptor-positive, Human Epidermal Growth factor receptor 2 (HR+/HER2−) breast cancer. These inhibitors work by preventing the action of CDK4/6, which are crucial in the regulation of the cell cycle. Leading cancer cells to cell cycle arrest and undergo apoptosis. When these inhibitors are used with endocrine medicines like letrozole and… More > Graphic Abstract

Stefano Dore¹, Matteo Sacchi¹, Antonio Pinna¹, Giuseppe Palmieri^2,3, Panagiotis Paliogiannis^4,*

Oncology Research, Vol.34, No.2, 2026, DOI:10.32604/or.2025.071831 - 19 January 2026

Abstract Uveal melanoma (UM) is the most common intraocular cancer, with approximately 5.2 individuals per million affected annually in the United States. It represents approximately 3% of the global malignant melanoma cases, accounting for 80% of the overall noncutaneous melanomas. Clinically, it remains silent in about 30% of the cases; when symptomatic, it generally causes metamorphopsia (painless loss or distortion of vision) and/or photopsia (flashing or flickering of light in the visual field). Discoloration of the iris, astigmatism, glaucoma, and even blindness are other, less common clinical manifestations. Several pathophysiological mechanisms underlie the development of UM.… More >

Harpreet Kaur^1,*, Dhrubalochan Rana², Sowvik Bag², Paramjeet Singh³

Oncology Research, Vol.34, No.2, 2026, DOI:10.32604/or.2025.071209 - 19 January 2026

Abstract The prolonged and intricate history of oncological treatments has transitioned significantly since the introduction of chemotherapy. Substantial therapeutic benefits in cancer therapy have been achieved by the integration of conventional treatments with molecular biosciences and omics technologies. Human epidermal growth factor receptor, hormone receptors, and angiogenesis factors are among the established therapies in tumor reduction and managing side effects. Novel targeted therapies like KRAS G12C, Claudin-18 isoform 2 (CLDN18.2), Trophoblast cell-surface antigen 2 (TROP2), and epigenetic regulators emphasize their promise in advancing precision medicine. However, in many cases, the resistance mechanisms associated with these interventions… More > Graphic Abstract

Dongchi Cai^1,2,#, Jialin Ji^3,#, Chunhui Yang^1,*, Hong Cai^1,*

Oncology Research, Vol.34, No.1, 2026, DOI:10.32604/or.2025.071152 - 30 December 2025

Abstract Metabolic reprogramming involving branched-chain amino acids (BCAAs)—leucine, isoleucine, and valine—is increasingly recognized as pivotal in cancer progression, metastasis, and immune modulation. This review comprehensively explores how cancer cells rewire BCAA metabolism to enhance proliferation, survival, and therapy resistance. Tumors manipulate BCAA uptake and catabolism via high expression of transporters like L-type amino acid transporter 1 (LAT1) and enzymes including branched chain amino acid transaminase 1(BCAT1), branched chain amino acid transaminase 2 (BCAT2), branched-chain alpha-keto acid dehydrogenase (BCKDH), and branched chain alpha-keto acid dehydrogenase kinase (BCKDK). These alterations sustain energy production, biosynthesis, redox homeostasis, and oncogenic… More >

Abdul Baseet Arham¹, John M. Rieth², Michael A. O’Donnell^3,*

Canadian Journal of Urology, Vol.32, No.6, pp. 605-620, 2025, DOI:10.32604/cju.2025.063632 - 30 December 2025

Abstract Background: Genitourinary (GU) sarcomas are rare soft tissue malignancies, comprising around 2% of all GU cancers. Due to their rarity, limited data exist on optimal management and long-term outcomes. This study presents a 25-year single-institution experience, evaluating clinical presentation, treatment strategies, and survival outcomes, aims to identify trends over time and potential predictors of prognosis. Methods: A retrospective review was conducted of patients aged ≥18 years diagnosed with GU sarcomas at the University of Iowa Hospitals and Clinics (1998–2023). Data on tumor subtype, staging, histopathology, treatment modalities, and survival outcomes were analyzed. Kaplan-Meier analysis estimated… More >