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Bouassaly J, Karimi N, Kowalski LP, Sultanem K, Alaoui-Jamali M, Mlynarek A, Mascarella M, Hier M, Sadeghi N, da Silva SD. Rethinking treatment paradigms: Neoadjuvant therapy and de-escalation strategies in HPV-positive head and neck cancer. Crit Rev Oncol Hematol 2024; 196:104326. [PMID: 38479584 DOI: 10.1016/j.critrevonc.2024.104326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 02/27/2024] [Accepted: 03/07/2024] [Indexed: 03/24/2024] Open
Abstract
Head and neck cancer (HNC) is the 6th most common cancer across the world, with a particular increase in HNC associated with human papilloma virus (HPV) among younger populations. Historically, the standard treatment for this disease consisted of combined surgery and radiotherapy or curative platinum-based concurrent chemoradiotherapy, with associated long term and late toxicities. However, HPV-positive HNC is recognized as a unique cancer subtype, typically with improved clinical outcomes. As such, treatment de-escalation strategies have been widely researched to mitigate the adverse effects associated with the current standard of care without compromising efficacy. These strategies include treatment de-escalation, such as novel surgical techniques, alternative radiation technologies, radiation dose and volume reduction, as well as neoadjuvant chemotherapies, immunotherapies, and combined therapies. Although these therapies show great promise, many of them are still under investigation due to hesitation surrounding their widespread implementation. The objective of this review is to summarize the most recent progress in de-escalation strategies and neoadjuvant therapies designed for HPV-positive HNC. While specific treatments may require additional research before being widely adopted, encouraging results from recent studies have highlighted the advantages of neoadjuvant chemotherapy and immunotherapy, as well as radiation and surgical de-escalation approaches in managing HPV-positive HNC.
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Affiliation(s)
- Jenna Bouassaly
- Division of Experimental Medicine, McGill University, Montreal QC H4A 3J1, Canada; Segal Cancer Centre and Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, Montreal QC H3T 1E2, Canada
| | - Naser Karimi
- Department of Otolaryngology Head and Neck Surgery, Sir Mortimer B. Davis-Jewish General Hospital, McGill University, Montreal QC H3T 1E2, Canada
| | - Luiz Paulo Kowalski
- AC Camargo Cancer Center, Faculty of Medicine - University of Sao Paulo, Sao Paulo, Brazil
| | - Khalil Sultanem
- Department of Otolaryngology Head and Neck Surgery, Sir Mortimer B. Davis-Jewish General Hospital, McGill University, Montreal QC H3T 1E2, Canada
| | - Moulay Alaoui-Jamali
- Division of Experimental Medicine, McGill University, Montreal QC H4A 3J1, Canada; Segal Cancer Centre and Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, Montreal QC H3T 1E2, Canada
| | - Alex Mlynarek
- Department of Otolaryngology Head and Neck Surgery, Sir Mortimer B. Davis-Jewish General Hospital, McGill University, Montreal QC H3T 1E2, Canada
| | - Marco Mascarella
- Department of Otolaryngology Head and Neck Surgery, Sir Mortimer B. Davis-Jewish General Hospital, McGill University, Montreal QC H3T 1E2, Canada
| | - Michael Hier
- Department of Otolaryngology Head and Neck Surgery, Sir Mortimer B. Davis-Jewish General Hospital, McGill University, Montreal QC H3T 1E2, Canada
| | - Nader Sadeghi
- Department of Otolaryngology Head and Neck Surgery, Sir Mortimer B. Davis-Jewish General Hospital, McGill University, Montreal QC H3T 1E2, Canada
| | - Sabrina Daniela da Silva
- Division of Experimental Medicine, McGill University, Montreal QC H4A 3J1, Canada; Department of Otolaryngology Head and Neck Surgery, Sir Mortimer B. Davis-Jewish General Hospital, McGill University, Montreal QC H3T 1E2, Canada; Segal Cancer Centre and Lady Davis Institute for Medical Research, Sir Mortimer B. Davis-Jewish General Hospital, Montreal QC H3T 1E2, Canada; AC Camargo Cancer Center, Faculty of Medicine - University of Sao Paulo, Sao Paulo, Brazil.
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Xie Y, Zhao G, Lei X, Cui N, Wang H. Advances in the regulatory mechanisms of mTOR in necroptosis. Front Immunol 2023; 14:1297408. [PMID: 38164133 PMCID: PMC10757967 DOI: 10.3389/fimmu.2023.1297408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 12/01/2023] [Indexed: 01/03/2024] Open
Abstract
The mammalian target of rapamycin (mTOR), an evolutionarily highly conserved serine/threonine protein kinase, plays a prominent role in controlling gene expression, metabolism, and cell death. Programmed cell death (PCD) is indispensable for maintaining homeostasis by removing senescent, defective, or malignant cells. Necroptosis, a type of PCD, relies on the interplay between receptor-interacting serine-threonine kinases (RIPKs) and the membrane perforation by mixed lineage kinase domain-like protein (MLKL), which is distinguished from apoptosis. With the development of necroptosis-regulating mechanisms, the importance of mTOR in the complex network of intersecting signaling pathways that govern the process has become more evident. mTOR is directly responsible for the regulation of RIPKs. Autophagy is an indirect mechanism by which mTOR regulates the removal and interaction of RIPKs. Another necroptosis trigger is reactive oxygen species (ROS) produced by oxidative stress; mTOR regulates necroptosis by exploiting ROS. Considering the intricacy of the signal network, it is reasonable to assume that mTOR exerts a bifacial effect on necroptosis. However, additional research is necessary to elucidate the underlying mechanisms. In this review, we summarized the mechanisms underlying mTOR activation and necroptosis and highlighted the signaling pathway through which mTOR regulates necroptosis. The development of therapeutic targets for various diseases has been greatly advanced by the expanding knowledge of how mTOR regulates necroptosis.
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Affiliation(s)
- Yawen Xie
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Guoyu Zhao
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Xianli Lei
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Na Cui
- Department of Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Hao Wang
- Department of Critical Care Medicine, Beijing Jishuitan Hospital, Capital Medical University, Beijing, China
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Zhang C, Xie L, Lin Z. Homeobox-D 1 and FTO form a transcriptional-epigenetic feedback loop to promote head and neck cancer proliferation. Cell Biol Int 2023; 47:1987-1998. [PMID: 37655555 DOI: 10.1002/cbin.12087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/29/2023] [Accepted: 08/20/2023] [Indexed: 09/02/2023]
Abstract
Transcription factors (TFs) and N6-methyladenosine (m6A) modifiers are involved in tumor progression through transcriptional regulation and posttranscriptional regulation of genes, respectively. However, the crosstalk and role of these two types of gene expression regulators in head and neck squamous cell carcinoma (HNSC) remains poorly understood. In this study, we demonstrate that the TF homeobox-D1 (HOXD1) and the m6A demethylase fat mass and obesity-associated protein (FTO) form a positive feedback loop to promote cell proliferation and survival in HNSC. Clinically, HOXD1 expression is dysregulated in multiple cancer types and is associated with worse prognosis in patients with HNSC, stomach adenocarcinoma, uterine corpus endometrial carcinoma, and pheochromocytoma and paraganglioma. Mechanistically, FTO is overexpressed in HNSC tumor samples and positively regulates HOXD1 expression in an m6A-dependent manner. Functionally, deficiency of HOXD1 relieved the resistance of HNSC cells to apoptosis and arrested tumor cells at the G0/G1 phase, thereby inhibiting cell growth, whereas overexpression of HOXD1 caused the opposite effect. Furthermore, HOXD1 activates the transcription of the oncogenic factor FTO by directly targeting its promoter. Downregulation of FTO mimicked the biological effect of HOXD1 knockdown on HNSC. Importantly, overexpression of HOXD1 significantly rescued the proliferation inhibition and apoptosis promotion of HNSC cells induced by deficiency of FTO. Together, our findings reveal HOXD1 as a novel prognostic predictor and a potential target for HNSC, providing mechanistic insights into the role of the HOXD1-FTO circuit in this cancer.
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Affiliation(s)
- Chunyan Zhang
- Department of Clinical Laboratory, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Linsen Xie
- Department of Clinical Laboratory, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Zhen Lin
- Department of Clinical Laboratory, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
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Everolimus downregulates STAT3/HIF-1α/VEGF pathway to inhibit angiogenesis and lymphangiogenesis in TP53 mutant head and neck squamous cell carcinoma (HNSCC). Oncotarget 2023; 14:85-95. [PMID: 36745547 PMCID: PMC9901561 DOI: 10.18632/oncotarget.28355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
TP53 mutant head and neck squamous cell carcinoma (HNSCC) patients exhibit poor clinical outcomes with 50-60% recurrence rates in advanced stage patients. In a recent phase II clinical trial, adjuvant therapy with everolimus (mTOR inhibitor) significantly increased 2-year progression-free survival in p53 mutated patients. TP53-driven mTOR activation in solid malignancies causes upregulation of HIF-1α and its target, downstream effector VEGF, by activating STAT3 cell signaling pathway. Here, we investigated the effects of everolimus on the STAT3/HIF-1α/VEGF pathway in TP53 mutant cell lines and xenograft models. Treatment with everolimus significantly inhibited cell growth in vitro and effectively reduced the growth of TP53 mutant xenografts in a minimal residual disease (MRD) model in nude mice. Everolimus treatment was associated with significant downregulation of STAT3/HIF-1α/VEGF pathway in both models. Further, treatment with everolimus was associated with attenuation in tumor angiogenesis and lymphangiogenesis as indicated by decreased microvessel density of vascular and lymphatic vessels in HN31 and FaDu xenografts. Everolimus downregulated the STAT3/HIF-1α/VEGF pathway to inhibit growth and in vitro tube formation of HMEC-1 (endothelial) and HMEC-1A (lymphatic endothelial) cell lines. Our studies demonstrated that everolimus inhibits the growth of TP53 mutant tumors by inhibiting angiogenesis and lymphangiogenesis through the downregulation of STAT3/HIF-1α/VEGF signaling.
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