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Nunno VD, Nuvola G, Mosca M, Maggio I, Gatto L, Tosoni A, Lodi R, Franceschi E, Brandes AA. Clinical efficacy of immune checkpoint inhibitors in patients with brain metastases. Immunotherapy 2021; 13:419-432. [PMID: 33472433 DOI: 10.2217/imt-2020-0208] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Brain metastases (BMs) represent a negative prognostic factor for patients with solid malignancies. BMs are generally approached with loco-regional treatments and the blood-brain barrier limits the efficacy of some systemic drugs. The aim of this review is to summarize current knowledge about the role of immune checkpoint inhibitors for the management of brain metastases in patients with solid malignancies. We performed a review of available literature. Immune checkpoint inhibitors represent the standard treatment for several advanced solid malignancies. However, with the exception of melanoma their clinical role in other solid malignancies is not completely clear due to the exclusion of patients with BM from approval clinical trials. Immune-checkpoint inhibitors may be an effective treatment of brain metastases of melanoma while their clinical role on brain metastases from other solid malignancies is uncertain.
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Affiliation(s)
| | - Giacomo Nuvola
- Department of Specialized, Experimental & Diagnostic Medicine, S. Orsola-Malpighi University Hospital, Alma Mater Studiorum University of Bologna
| | - Mirta Mosca
- Department of Specialized, Experimental & Diagnostic Medicine, S. Orsola-Malpighi University Hospital, Alma Mater Studiorum University of Bologna
| | - Ilaria Maggio
- Department of Medical Oncology, Azienda USL, Bologna, Italy
| | - Lidia Gatto
- Department of Medical Oncology, Azienda USL, Bologna, Italy
| | - Alicia Tosoni
- Department of Medical Oncology, Azienda USL, Bologna, Italy
| | - Raffaele Lodi
- IRCCS Istituto delle Scienze Neurologiche di Bologna
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Chen GL, Luo Y, Eriksson D, Meng X, Qian C, Bäuerle T, Chen XX, Schett G, Bozec A. High fat diet increases melanoma cell growth in the bone marrow by inducing osteopontin and interleukin 6. Oncotarget 2018; 7:26653-69. [PMID: 27049717 PMCID: PMC5042005 DOI: 10.18632/oncotarget.8474] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 03/07/2016] [Indexed: 01/08/2023] Open
Abstract
The impact of metabolic stress induced by obesity on the bone marrow melanoma niche is largely unknown. Here we employed diet induced obese mice model, where mice received high-fat (HFD) or normal diet (ND) for 6 weeks before challenge with B16F10 melanoma cells. Tumor size, bone loss and osteoclasts numbers were assessed histologically in the tibial bones. For defining the molecular pathway, osteopontin knock-out mice, interleukin 6 neutralizing antibody or Janus kinase 2 inhibition were carried out in the same model. Mechanistic studies such as adipocyte-melanoma co-cultures for defining adipocyte induced changes of tumor cell proliferation and expression profiles were also performed. As results, HFD enhanced melanoma burden in bone by increasing tumor area and osteoclast numbers. This process was associated with higher numbers of bone marrow adipocytes expressing IL-6 in direct vicinity to tumor cells. Inhibition of IL-6 or of downstream JAK2 blocked HFD-induced tumor progression. Furthermore, the phenotypic changes of melanoma cells triggered macrophage and osteoclast accumulation accompanied by increased osteopontin expression. Osteopontin triggered osteoclastogenesis and also exerted a positive feedback loop to tumor cells, which was abrogated in its absence. Metabolic stress by HFD promotes melanoma growth in the bone marrow by an increase in bone marrow adipocytes and IL-6-JAK2-osteopontin mediated activation of tumor cells and osteoclast differentiation.
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Affiliation(s)
- Guang-Liang Chen
- Department of Internal Medicine 3, University of Erlangen-Nuremberg, Erlangen, Germany.,Minhang District Central Hospital, Fudan University, Shanghai, China
| | - Yubin Luo
- Department of Internal Medicine 3, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Daniel Eriksson
- Department of Internal Medicine 3, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Xianyi Meng
- Department of Internal Medicine 3, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Cheng Qian
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Tobias Bäuerle
- Institute of Radiology, University Medical Center Erlangen, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
| | - Xiao-Xiang Chen
- Department of Rheumatology, Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Georg Schett
- Department of Internal Medicine 3, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Aline Bozec
- Department of Internal Medicine 3, University of Erlangen-Nuremberg, Erlangen, Germany
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