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Bhattacharya K, Mahajan A, Mynalli S. Imaging Recommendations for Diagnosis, Staging, and Management of Central Nervous System Neoplasms in Adults: CNS Metastases. Cancers (Basel) 2024; 16:2667. [PMID: 39123394 PMCID: PMC11311790 DOI: 10.3390/cancers16152667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 07/07/2024] [Accepted: 07/12/2024] [Indexed: 08/12/2024] Open
Abstract
Brain metastases (BMs) are the most common central nervous system (CNS) neoplasms, with an increasing incidence that is due in part to an overall increase in primary cancers, improved neuroimaging modalities leading to increased detection, better systemic therapies, and longer patient survival. OBJECTIVE To identify cancer patients at a higher risk of developing CNS metastases and to evaluate associated prognostic factors. METHODS Review of imaging referral guidelines, response criteria, interval imaging assessment, modality of choice, as well as the association of clinical, serological, and imaging findings as per various cancer societies. RESULTS Quantitative response assessment of target and non-target brain metastases as well as an interval imaging protocol set up based on primary histological diagnosis and therapy status are discussed as per various cancer societies and imaging programs. CONCLUSION Predictive factors in the primary tumor as well as independent variables of brain metastases like size, number, and response to therapy are necessary in management. The location of CNS metastases, symptomatic disease, as well as follow up imaging findings form a skeletal plan to prognosticate the disease, keeping in mind all the available new advanced therapy options of surgery, radiation, and immunotherapy that improve patient outcome significantly.
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Affiliation(s)
- Kajari Bhattacharya
- Department of Radiodiagnosis, Tata Memorial Hospital, Parel, Mumbai 400012, India; (K.B.); (S.M.)
| | - Abhishek Mahajan
- Department of Imaging, The Clatterbridge Cancer Centre NHS Foundation Trust, 65 Pembroke Place, Liverpool L7 8YA, UK
- Faculty of Health and Life Sciences, University of Liverpool, Liverpool L69 3BX, UK
| | - Soujanya Mynalli
- Department of Radiodiagnosis, Tata Memorial Hospital, Parel, Mumbai 400012, India; (K.B.); (S.M.)
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2
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Martinez-Espinosa I, Serrato JA, Ortiz-Quintero B. The Role of Exosome-Derived microRNA on Lung Cancer Metastasis Progression. Biomolecules 2023; 13:1574. [PMID: 38002256 PMCID: PMC10669807 DOI: 10.3390/biom13111574] [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: 09/10/2023] [Revised: 10/16/2023] [Accepted: 10/19/2023] [Indexed: 11/26/2023] Open
Abstract
The high mortality from lung cancer is mainly attributed to the presence of metastases at the time of diagnosis. Despite being the leading cause of lung cancer death, the underlying molecular mechanisms driving metastasis progression are still not fully understood. Recent studies suggest that tumor cell exosomes play a significant role in tumor progression through intercellular communication between tumor cells, the microenvironment, and distant organs. Furthermore, evidence shows that exosomes release biologically active components to distant sites and organs, which direct metastasis by preparing metastatic pre-niche and stimulating tumorigenesis. As a result, identifying the active components of exosome cargo has become a critical area of research in recent years. Among these components are microRNAs, which are associated with tumor progression and metastasis in lung cancer. Although research into exosome-derived microRNA (exosomal miRNAs) is still in its early stages, it holds promise as a potential target for lung cancer therapy. Understanding how exosomal microRNAs promote metastasis will provide evidence for developing new targeted treatments. This review summarizes current research on exosomal miRNAs' role in metastasis progression mechanisms, focusing on lung cancer.
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Affiliation(s)
| | | | - Blanca Ortiz-Quintero
- Department of Molecular Biomedicine and Translational Research, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City CP 14080, Mexico; (I.M.-E.); (J.A.S.)
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3
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Chhichholiya Y, Ruthuparna M, Velagaleti H, Munshi A. Brain metastasis in breast cancer: focus on genes and signaling pathways involved, blood-brain barrier and treatment strategies. Clin Transl Oncol 2023; 25:1218-1241. [PMID: 36897508 DOI: 10.1007/s12094-022-03050-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 12/12/2022] [Indexed: 03/11/2023]
Abstract
Breast cancer (BC) is one of the most prevalent types of cancer in women. Despite advancement in early detection and efficient treatment, recurrence and metastasis continue to pose a significant risk to the life of BC patients. Brain metastasis (BM) reported in 17-20 percent of BC patients is considered as a major cause of mortality and morbidity in these patients. BM includes various steps from primary breast tumor to secondary tumor formation. Various steps involved are primary tumor formation, angiogenesis, invasion, extravasation, and brain colonization. Genes involved in different pathways have been reported to be associated with BC cells metastasizing to the brain. ADAM8 gene, EN1 transcription factor, WNT, and VEGF signaling pathway have been associated with primary breast tumor; MMP1, COX2, XCR4, PI3k/Akt, ERK and MAPK pathways in angiogenesis; Noth, CD44, Zo-1, CEMIP, S0X2 and OLIG2 are involved in invasion, extravasation and colonization, respectively. In addition, the blood-brain barrier is also a key factor in BM. Dysregulation of cell junctions, tumor microenvironment and loss of function of microglia leads to BBB disruption ultimately resulting in BM. Various therapeutic strategies are currently used to control the BM in BC. Oncolytic virus therapy, immune checkpoint inhibitors, mTOR-PI3k inhibitors and immunotherapy have been developed to target various genes involved in BM in BC. In addition, RNA interference (RNAi) and CRISPR/Cas9 are novel interventions in the field of BCBM where research to validate these and clinical trials are being carried out. Gaining a better knowledge of metastasis biology is critical for establishing better treatment methods and attaining long-term therapeutic efficacies against BC. The current review has been compiled with an aim to evaluate the role of various genes and signaling pathways involved in multiple steps of BM in BC. The therapeutic strategies being used currently and the novel ones being explored to control BM in BC have also been discussed at length.
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Affiliation(s)
- Yogita Chhichholiya
- Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda, Punjab, India
| | - Malayil Ruthuparna
- Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda, Punjab, India
| | - Harini Velagaleti
- Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda, Punjab, India
| | - Anjana Munshi
- Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda, Punjab, India.
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4
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Souza VGP, de Araújo RP, Santesso MR, Seneda AL, Minutentag IW, Felix TF, Hamamoto Filho PT, Pewarchuk ME, Brockley LJ, Marchi FA, Lam WL, Drigo SA, Reis PP. Advances in the Molecular Landscape of Lung Cancer Brain Metastasis. Cancers (Basel) 2023; 15:722. [PMID: 36765679 PMCID: PMC9913505 DOI: 10.3390/cancers15030722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/16/2023] [Accepted: 01/20/2023] [Indexed: 01/27/2023] Open
Abstract
Lung cancer is one of the most frequent tumors that metastasize to the brain. Brain metastasis (BM) is common in advanced cases, being the major cause of patient morbidity and mortality. BMs are thought to arise via the seeding of circulating tumor cells into the brain microvasculature. In brain tissue, the interaction with immune cells promotes a microenvironment favorable to the growth of cancer cells. Despite multimodal treatments and advances in systemic therapies, lung cancer patients still have poor prognoses. Therefore, there is an urgent need to identify the molecular drivers of BM and clinically applicable biomarkers in order to improve disease outcomes and patient survival. The goal of this review is to summarize the current state of knowledge on the mechanisms of the metastatic spread of lung cancer to the brain and how the metastatic spread is influenced by the brain microenvironment, and to elucidate the molecular determinants of brain metastasis regarding the role of genomic and transcriptomic changes, including coding and non-coding RNAs. We also present an overview of the current therapeutics and novel treatment strategies for patients diagnosed with BM from NSCLC.
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Affiliation(s)
- Vanessa G. P. Souza
- Molecular Oncology Laboratory, Experimental Research Unit, Faculty of Medicine, São Paulo State University (UNESP), Botucatu 18618-687, Brazil
- British Columbia Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada
| | - Rachel Paes de Araújo
- Molecular Oncology Laboratory, Experimental Research Unit, Faculty of Medicine, São Paulo State University (UNESP), Botucatu 18618-687, Brazil
| | - Mariana R. Santesso
- Molecular Oncology Laboratory, Experimental Research Unit, Faculty of Medicine, São Paulo State University (UNESP), Botucatu 18618-687, Brazil
| | - Ana Laura Seneda
- Molecular Oncology Laboratory, Experimental Research Unit, Faculty of Medicine, São Paulo State University (UNESP), Botucatu 18618-687, Brazil
| | - Iael W. Minutentag
- Molecular Oncology Laboratory, Experimental Research Unit, Faculty of Medicine, São Paulo State University (UNESP), Botucatu 18618-687, Brazil
| | - Tainara Francini Felix
- Molecular Oncology Laboratory, Experimental Research Unit, Faculty of Medicine, São Paulo State University (UNESP), Botucatu 18618-687, Brazil
| | - Pedro Tadao Hamamoto Filho
- Department of Neurology, Psychology and Psychiatry, Faculty of Medicine, São Paulo State University (UNESP), Botucatu 18618-687, Brazil
| | | | - Liam J. Brockley
- British Columbia Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada
| | - Fábio A. Marchi
- Faculty of Medicine, University of São Paulo, São Paulo 01246-903, Brazil
| | - Wan L. Lam
- British Columbia Cancer Research Institute, Vancouver, BC V5Z 1L3, Canada
| | - Sandra A. Drigo
- Molecular Oncology Laboratory, Experimental Research Unit, Faculty of Medicine, São Paulo State University (UNESP), Botucatu 18618-687, Brazil
| | - Patricia P. Reis
- Molecular Oncology Laboratory, Experimental Research Unit, Faculty of Medicine, São Paulo State University (UNESP), Botucatu 18618-687, Brazil
- Department of Surgery and Orthopedics, Faculty of Medicine, São Paulo State University (UNESP), Botucatu 18618-687, Brazil
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5
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Li K, Zong D, Sun J, Chen D, Ma M, Jia L. Rewiring of the Endocrine Network in Triple-Negative Breast Cancer. Front Oncol 2022; 12:830894. [PMID: 35847875 PMCID: PMC9280148 DOI: 10.3389/fonc.2022.830894] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 01/31/2022] [Indexed: 12/19/2022] Open
Abstract
The immunohistochemical definition of estrogen/progesterone receptors dictates endocrine feasibility in the treatment course of breast cancer. Characterized by the deficiency of estrogen receptor α, ERα-negative breast cancers are dissociated from any endocrine regimens in the routine clinical setting, triple-negative breast cancer in particular. However, the stereotype was challenged by triple-negative breast cancers’ retained sensitivity and vulnerability to endocrine agents. The interplay of hormone action and the carcinogenic signaling program previously underscored was gradually recognized along with the increasing investigation. In parallel, the overlooked endocrine-responsiveness in ERα-negative breast cancers attracted attention and supplied fresh insight into the therapeutic strategy in an ERα-independent manner. This review elaborates on the genomic and non-genomic steroid hormone actions and endocrine-related signals in triple-negative breast cancers attached to the hormone insensitivity label. We also shed light on the non-canonical mechanism detected in common hormone agents to showcase their pleiotropic effects.
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Affiliation(s)
- Kaixuan Li
- Department of Integrated Traditional Chinese and Western Medicine Oncology, China-Japan Friendship Hospital, Beijing, China
- Beijing University of Chinese medicine, Beijing, China
| | | | - Jianrong Sun
- School of Clinical Medicine. Beijing University of Chinese Medicine, Beijing, China
| | - Danxiang Chen
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Minkai Ma
- Department of Integrated Traditional Chinese and Western Medicine Oncology, The Fourth Central Hospital, Baoding, China
| | - Liqun Jia
- Department of Integrated Traditional Chinese and Western Medicine Oncology, China-Japan Friendship Hospital, Beijing, China
- *Correspondence: Liqun Jia,
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6
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Volpe F, Piscopo L, Manganelli M, Falzarano M, Volpicelli F, Nappi C, Imbriaco M, Cuocolo A, Klain M. Intramedullary Spinal Cord Metastases from Differentiated Thyroid Cancer, a Case Report. Life (Basel) 2022; 12:863. [PMID: 35743894 PMCID: PMC9225536 DOI: 10.3390/life12060863] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/25/2022] [Accepted: 06/06/2022] [Indexed: 06/15/2023] Open
Abstract
Intramedullary spinal cord metastases (ISCM) are uncommon metastases of the spinal cord. Magnetic resonance (MR) plays an important role in surgical planning when ISCM is suspected in the differential diagnosis. The incidence of ISCM is expected to increase due to the longer survival of cancer patients as well as the widespread use of MR in the diagnosis of neurological syndromes. The management of these patients is controversial because of the multiple clinical presentations and lack of controlled studies on the efficacy of different therapeutic approaches. Increased awareness of this rare entity may lead to an earlier diagnosis with novel imaging approaches at a stage when neurological deficits are reversible. A case of ISCM in a 49-year-old patient with differentiated thyroid cancer is reported.
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7
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Targeting Acid Ceramidase Inhibits Glioblastoma Cell Migration through Decreased AKT Signaling. Cells 2022; 11:cells11121873. [PMID: 35741006 PMCID: PMC9221433 DOI: 10.3390/cells11121873] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 05/13/2022] [Accepted: 06/06/2022] [Indexed: 01/12/2023] Open
Abstract
Glioblastoma (GBM) remains one of the most aggressive cancers, partially due to its ability to migrate into the surrounding brain. The sphingolipid balance, or the balance between ceramides and sphingosine-1-phosphate, contributes to the ability of GBM cells to migrate or invade. Of the ceramidases which hydrolyze ceramides, acid ceramidase (ASAH1) is highly expressed in GBM samples compared to non-tumor brain. ASAH1 expression also correlates with genes associated with migration and focal adhesion. To understand the role of ASAH1 in GBM migration, we utilized shRNA knockdown and observed decreased migration that did not depend upon changes in growth. Next, we inhibited ASAH1 using carmofur, a clinically utilized small molecule inhibitor. Inhibition of ASAH1 by carmofur blocks in vitro migration of U251 (GBM cell line) and GBM cells derived from patient-derived xenografts (PDXs). RNA-sequencing suggested roles for carmofur in MAPK and AKT signaling. We found that carmofur treatment decreases phosphorylation of AKT, but not of MAPK. The decrease in AKT phosphorylation was confirmed by shRNA knockdown of ASAH1. Our findings substantiate ASAH1 inhibition using carmofur as a potential clinically relevant treatment to advance GBM therapeutics, particularly due to its impact on migration.
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8
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Kung Y, Chen KY, Liao WH, Hsu YH, Wu CH, Hsiao MY, Huang APH, Chen WS. Facilitating drug delivery in the central nervous system by opening the blood-cerebrospinal fluid barrier with a single low energy shockwave pulse. Fluids Barriers CNS 2022; 19:3. [PMID: 34991647 PMCID: PMC8740485 DOI: 10.1186/s12987-021-00303-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 12/27/2021] [Indexed: 12/19/2022] Open
Abstract
Background The blood-cerebrospinal fluid (CSF) barrier (BCSFB) is critically important to the pathophysiology of the central nervous system (CNS). However, this barrier prevents the safe transmission of beneficial drugs from the blood to the CSF and thus the spinal cord and brain, limiting their effectiveness in treating a variety of CNS diseases. Methods This study demonstrates a method on SD rats for reversible and site-specific opening of the BCSFB via a noninvasive, low-energy focused shockwave (FSW) pulse (energy flux density 0.03 mJ/mm2) with SonoVue microbubbles (2 × 106 MBs/kg), posing a low risk of injury. Results By opening the BCSFB, the concentrations of certain CNS-impermeable indicators (70 kDa Evans blue and 500 kDa FITC-dextran) and drugs (penicillin G, doxorubicin, and bevacizumab) could be significantly elevated in the CSF around both the brain and the spinal cord. Moreover, glioblastoma model rats treated by doxorubicin with this FSW-induced BCSFB (FSW-BCSFB) opening technique also survived significantly longer than untreated controls. Conclusion This is the first study to demonstrate and validate a method for noninvasively and selectively opening the BCSFB to enhance drug delivery into CSF circulation. Potential applications may include treatments for neurodegenerative diseases, CNS infections, brain tumors, and leptomeningeal carcinomatosis. Supplementary Information The online version contains supplementary material available at 10.1186/s12987-021-00303-x.
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Affiliation(s)
- Yi Kung
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital & National Taiwan University College of Medicine, Taipei City, Taiwan
| | - Kuan-Yu Chen
- Division of Pulmonology, Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, Taipei City, Taiwan
| | - Wei-Hao Liao
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital & National Taiwan University College of Medicine, Taipei City, Taiwan
| | - Yi-Hua Hsu
- Department of Surgery, National Taiwan University Hospital, Taipei City, Taiwan
| | - Chueh-Hung Wu
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital & National Taiwan University College of Medicine, Taipei City, Taiwan
| | - Ming-Yen Hsiao
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital & National Taiwan University College of Medicine, Taipei City, Taiwan
| | - Abel P-H Huang
- Department of Surgery, National Taiwan University Hospital, Taipei City, Taiwan.
| | - Wen-Shiang Chen
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital & National Taiwan University College of Medicine, Taipei City, Taiwan. .,Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli, Taiwan.
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9
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Taniguchi K, Suzuki T, Okamura T, Kurita A, Nohara G, Ishii S, Kado S, Takagi A, Tsugane M, Shishido Y. Perifosine, a Bioavailable Alkylphospholipid Akt Inhibitor, Exhibits Antitumor Activity in Murine Models of Cancer Brain Metastasis Through Favorable Tumor Exposure. Front Oncol 2021; 11:754365. [PMID: 34804943 PMCID: PMC8600181 DOI: 10.3389/fonc.2021.754365] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 10/19/2021] [Indexed: 12/18/2022] Open
Abstract
Metastatic brain tumors are regarded as the most advanced stage of certain types of cancer; however, chemotherapy has played a limited role in the treatment of brain metastases. Here, we established murine models of brain metastasis using cell lines derived from human brain metastatic tumors, and aimed to explore the antitumor efficacy of perifosine, an orally active allosteric Akt inhibitor. We evaluated the effectiveness of perifosine by using it as a single agent in ectopic and orthotopic models created by injecting the DU 145 and NCI-H1915 cell lines into mice. Initially, the injected cells formed distant multifocal lesions in the brains of NCI-H1915 mice, making surgical resection impractical in clinical settings. We determined that perifosine could distribute into the brain and remain localized in that region for a long period. Perifosine significantly prolonged the survival of DU 145 and NCI-H1915 orthotopic brain tumor mice; additionally, complete tumor regression was observed in the NCI-H1915 model. Perifosine also elicited much stronger antitumor responses against subcutaneous NCI-H1915 growth; a similar trend of sensitivity to perifosine was also observed in the orthotopic models. Moreover, the degree of suppression of NCI-H1915 tumor growth was associated with long-term exposure to a high level of perifosine at the tumor site and the resultant blockage of the PI3K/Akt signaling pathway, a decrease in tumor cell proliferation, and increased apoptosis. The results presented here provide a promising approach for the future treatment of patients with metastatic brain cancers and emphasize the importance of enriching a patient population that has a higher probability of responding to perifosine.
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Affiliation(s)
| | - Tomo Suzuki
- Yakult Central Institute, Yakult Honsha Co., Ltd., Tokyo, Japan
| | - Tomomi Okamura
- Yakult Central Institute, Yakult Honsha Co., Ltd., Tokyo, Japan
| | - Akinobu Kurita
- Yakult Central Institute, Yakult Honsha Co., Ltd., Tokyo, Japan
| | - Gou Nohara
- Pharmaceutical Research & Development Department, Yakult Honsha Co., Ltd., Tokyo, Japan
| | - Satoru Ishii
- Pharmaceutical Research & Development Department, Yakult Honsha Co., Ltd., Tokyo, Japan
| | - Shoichi Kado
- Yakult Central Institute, Yakult Honsha Co., Ltd., Tokyo, Japan
| | - Akimitsu Takagi
- Yakult Central Institute, Yakult Honsha Co., Ltd., Tokyo, Japan
| | - Momomi Tsugane
- Yakult Central Institute, Yakult Honsha Co., Ltd., Tokyo, Japan
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10
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Joe NS, Hodgdon C, Kraemer L, Redmond KJ, Stearns V, Gilkes DM. A common goal to CARE: Cancer Advocates, Researchers, and Clinicians Explore current treatments and clinical trials for breast cancer brain metastases. NPJ Breast Cancer 2021; 7:121. [PMID: 34521857 PMCID: PMC8440644 DOI: 10.1038/s41523-021-00326-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 08/09/2021] [Indexed: 02/08/2023] Open
Abstract
Breast cancer is the most commonly diagnosed cancer in women worldwide. Approximately one-tenth of all patients with advanced breast cancer develop brain metastases resulting in an overall survival rate of fewer than 2 years. The challenges lie in developing new approaches to treat, monitor, and prevent breast cancer brain metastasis (BCBM). This review will provide an overview of BCBM from the integrated perspective of clinicians, researchers, and patient advocates. We will summarize the current management of BCBM, including diagnosis, treatment, and monitoring. We will highlight ongoing translational research for BCBM, including clinical trials and improved detection methods that can become the mainstay for BCBM treatment if they demonstrate efficacy. We will discuss preclinical BCBM research that focuses on the intrinsic properties of breast cancer cells and the influence of the brain microenvironment. Finally, we will spotlight emerging studies and future research needs to improve survival outcomes and preserve the quality of life for patients with BCBM.
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Affiliation(s)
- Natalie S Joe
- Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Cellular and Molecular Medicine Program, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Christine Hodgdon
- INSPIRE (Influencing Science through Patient-Informed Research & Education) Advocacy Program, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | - Kristin J Redmond
- Department of Radiation Oncology and Molecular Radiation Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Vered Stearns
- Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
- INSPIRE (Influencing Science through Patient-Informed Research & Education) Advocacy Program, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Daniele M Gilkes
- Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
- Cellular and Molecular Medicine Program, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
- INSPIRE (Influencing Science through Patient-Informed Research & Education) Advocacy Program, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
- Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, MD, USA.
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11
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Chen W, Li C, Shi Y, Zhang Y, Jin D, Zhang M, Bo M, Li G. A Comprehensive Analysis of Metabolomics and Transcriptomics Reveals Novel Biomarkers and Mechanistic Insights on Lorlatinib Crosses the Blood-Brain Barrier. Front Pharmacol 2021; 12:722627. [PMID: 34497521 PMCID: PMC8419651 DOI: 10.3389/fphar.2021.722627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 08/05/2021] [Indexed: 12/19/2022] Open
Abstract
Of late, lorlatinib has played an increasingly pivotal role in the treatment of brain metastasis from non-small cell lung cancer. However, its pharmacokinetics in the brain and the mechanism of entry are still controversial. The purpose of this study was to explore the mechanisms of brain penetration by lorlatinib and identify potential biomarkers for the prediction of lorlatinib concentration in the brain. Detection of lorlatinib in lorlatinib-administered mice and control mice was performed using liquid chromatography and mass spectrometry. Metabolomics and transcriptomics were combined to investigate the pathway and relationships between metabolites and genes. Multilayer perceptron was applied to construct an artificial neural network model for prediction of the distribution of lorlatinib in the brain. Nine biomarkers related to lorlatinib concentration in the brain were identified. A metabolite-reaction-enzyme-gene interaction network was built to reveal the mechanism of lorlatinib. A multilayer perceptron model based on the identified biomarkers provides a prediction accuracy rate of greater than 85%. The identified biomarkers and the neural network constructed with these metabolites will be valuable for predicting the concentration of drugs in the brain. The model provides a lorlatinib to treat tumor brain metastases in the clinic.
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Affiliation(s)
- Wei Chen
- National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Chunyu Li
- National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yafei Shi
- National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yujun Zhang
- National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Dujia Jin
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Mingyu Zhang
- National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Mingming Bo
- National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Guohui Li
- National Cancer Center, National Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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12
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Mandal S, Bandyopadhyay S, Tyagi K, Roy A. Recent advances in understanding the molecular role of phosphoinositide-specific phospholipase C gamma 1 as an emerging onco-driver and novel therapeutic target in human carcinogenesis. Biochim Biophys Acta Rev Cancer 2021; 1876:188619. [PMID: 34454048 DOI: 10.1016/j.bbcan.2021.188619] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/04/2021] [Accepted: 08/21/2021] [Indexed: 02/07/2023]
Abstract
Phosphoinositide metabolism is crucial intracellular signaling system that regulates a plethora of biological functions including mitogenesis, cell proliferation and division. Phospholipase C gamma 1 (PLCγ1) which belongs to phosphoinositide-specific phospholipase C (PLC) family, is activated by many extracellular stimuli including hormones, neurotransmitters, growth factors and modulates several cellular and physiological functions necessary for tumorigenesis such as cell survival, migration, invasion and angiogenesis by generating inositol 1,4,5-triphosphate (IP3) and diacylglycerol (DAG) via hydrolysis of phosphatidylinositol 4,5-biphosphate (PIP2). Cancer remains as a leading cause of global mortality and aberrant expression and regulation of PLCγ1 is linked to a plethora of deadly human cancers including carcinomas of the breast, lung, pancreas, stomach, prostate and ovary. Although PLCγ1 cross-talks with many onco-drivers and signaling circuits including PI3K, AKT, HIF1-α and RAF/MEK/ERK cascade, its precise role in carcinogenesis is not completely understood. This review comprehensively discussed the status quo of this ubiquitously expressed phospholipase as a tumor driver and highlighted its significance as a novel therapeutic target in cancer. Furthermore, we have highlighted the significance of somatic driver mutations in PLCG1 gene and molecular roles of PLCγ1 in several major human cancers, a knowledgebase that can be utilized to develop novel, isoform-specific small molecule inhibitors of PLCγ1.
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Affiliation(s)
- Supratim Mandal
- Department of Microbiology, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India.
| | - Shrabasti Bandyopadhyay
- Department of Microbiology, University of Kalyani, Kalyani, Nadia, West Bengal 741235, India
| | - Komal Tyagi
- Amity Institute of Molecular Medicine & Stem Cell Research, Amity University, Sector 125, Noida, Uttar Pradesh 201303, India
| | - Adhiraj Roy
- Amity Institute of Molecular Medicine & Stem Cell Research, Amity University, Sector 125, Noida, Uttar Pradesh 201303, India.
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13
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Lin X, Lu T, Deng H, Liu C, Yang Y, Chen T, Qin Y, Xie X, Xie Z, Liu M, Ouyang M, Li S, Song Y, Zhong N, Qiu W, Zhou C. Serum neurofilament light chain or glial fibrillary acidic protein in the diagnosis and prognosis of brain metastases. J Neurol 2021; 269:815-823. [PMID: 34283286 DOI: 10.1007/s00415-021-10660-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/05/2021] [Accepted: 06/09/2021] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Brain metastases (BM) remains the most cumbersome disease burden in patients with lung cancer. This study aimed to investigate whether serum brain injury biomarkers can indicate BM, to further establish related diagnostic models, or to predict prognosis of BM. MATERIALS AND METHODS This was a prospective study of patients diagnosed with lung cancer with BM (BM group), with lung cancer without BM (NBM group), and healthy participants (control group). Serum neurofilament light chain (NfL) and glial fibrillary acidic protein (GFAP) were detected at baseline. We identified and integrated the risk factors of BM to establish diagnostic models. RESULTS A total of 158 patients were included (n = 37, 57, and 64 in the BM, NBM, and control groups, respectively). Serum biomarker levels were significantly higher in the NBM group than in the control group. Higher serum NfL and GFAP concentrations were associated with BM (odds ratios, 3.06 and 1.79, respectively). NfL (area under curve [AUC] = 0.77, p < 0.001) and GFAP (AUC = 0.64, p = 0.02) had diagnostic value for BM. The final diagnostic model included NfL level, age, Karnofsky Performance Status. The model had an AUC value of 0.83 (95% confidence interval [CI] 0.75-0.92). High NfL concentration was correlated with poor overall survival of patients with BM (hazard ratio, 3.31; 95% CI 1.22-9.04; p = 0.019). CONCLUSION Serum NfL and GFAP could be potential diagnostic biomarkers for BM in patients with lung cancer. We established a model that can provide individual diagnoses of BM. Higher NfL level may be associated with poor prognosis of patients with BM.
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Affiliation(s)
- Xinqing Lin
- State Key Laboratory of Respiratory Disease, National Clinical Research Centre for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital, Guangzhou Medical University, 151# Yanjiang Road, Guangzhou, 510120, China
| | - Tingting Lu
- Department of Neurology, Psychological and Neurological Diseases Research Centre, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, China
| | - Haiyi Deng
- State Key Laboratory of Respiratory Disease, National Clinical Research Centre for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital, Guangzhou Medical University, 151# Yanjiang Road, Guangzhou, 510120, China
| | - Chunxin Liu
- Department of Neurology, Psychological and Neurological Diseases Research Centre, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, China
| | - Yilin Yang
- State Key Laboratory of Respiratory Disease, National Clinical Research Centre for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital, Guangzhou Medical University, 151# Yanjiang Road, Guangzhou, 510120, China
| | - Tao Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Centre for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital, Guangzhou Medical University, 151# Yanjiang Road, Guangzhou, 510120, China
| | - Yinyin Qin
- State Key Laboratory of Respiratory Disease, National Clinical Research Centre for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital, Guangzhou Medical University, 151# Yanjiang Road, Guangzhou, 510120, China
| | - Xiaohong Xie
- State Key Laboratory of Respiratory Disease, National Clinical Research Centre for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital, Guangzhou Medical University, 151# Yanjiang Road, Guangzhou, 510120, China
| | - Zhanhong Xie
- State Key Laboratory of Respiratory Disease, National Clinical Research Centre for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital, Guangzhou Medical University, 151# Yanjiang Road, Guangzhou, 510120, China
| | - Ming Liu
- State Key Laboratory of Respiratory Disease, National Clinical Research Centre for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital, Guangzhou Medical University, 151# Yanjiang Road, Guangzhou, 510120, China
| | - Ming Ouyang
- State Key Laboratory of Respiratory Disease, National Clinical Research Centre for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital, Guangzhou Medical University, 151# Yanjiang Road, Guangzhou, 510120, China
| | - Shiyue Li
- State Key Laboratory of Respiratory Disease, National Clinical Research Centre for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital, Guangzhou Medical University, 151# Yanjiang Road, Guangzhou, 510120, China
| | - Yong Song
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Nanjing, China
| | - Nanshan Zhong
- State Key Laboratory of Respiratory Disease, National Clinical Research Centre for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital, Guangzhou Medical University, 151# Yanjiang Road, Guangzhou, 510120, China
| | - Wei Qiu
- Department of Neurology, Psychological and Neurological Diseases Research Centre, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510630, China.
| | - Chengzhi Zhou
- State Key Laboratory of Respiratory Disease, National Clinical Research Centre for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital, Guangzhou Medical University, 151# Yanjiang Road, Guangzhou, 510120, China.
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14
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Müller SJ, Khadhraoui E, Neef NE, Riedel CH, Ernst M. Differentiation of brain metastases from small and non-small lung cancers using apparent diffusion coefficient (ADC) maps. BMC Med Imaging 2021; 21:70. [PMID: 33858368 PMCID: PMC8048287 DOI: 10.1186/s12880-021-00602-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 04/05/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Brain metastases are particularly common in patients with small cell lung cancer (SCLC) and non-small cell lung cancer (NSCLC), with NSCLC showing a less aggressive clinical course and lower chemo- and radio sensitivity compared to SCLC. Early adequate therapy is highly desirable and depends on a reliable classification of tumor type. The apparent diffusion coefficient is a noninvasive neuroimaging marker with the potential to differentiate between major histological subtypes. Here we determine the sensitivity and specificity of the apparent diffusion coefficient to distinguish between NSCLC and SCLC. METHODS We enrolled all NSCLC and SCLC patients diagnosed between 2008 and 2019 at the University Medical Center Göttingen. Cranial MR scans were visually inspected for brain metastases and the ratio of the apparent diffusion coefficient (ADC) was calculated by dividing the ADC measured within the solid part of a metastasis by a reference ADC extracted from an equivalent region in unaffected tissue on the contralateral hemisphere. RESULTS Out of 411 enrolled patients, we detected 129 patients (83 NSCLC, 46 SCLC) with sufficiently large brain metastases with histologically classified lung cancer and no hemorrhage. We analyzed 185 brain metastases, 84 of SCLC and 101 of NSCLC. SCLC brain metastases showed an ADC ratio of 0.68 ± 0.12 SD, and NSCLC brain metastases showed an ADC ratio of 1.47 ± 0.31 SD. Receiver operating curve statistics differentiated brain metastases of NSCLC from SCLC with an area under the curve of 0.99 and a 95% CI of 0.98 to 1, p < 0.001. Youden's J cut-point is 0.97 at a sensitivity of 0.989 and a specificity of 0.988. CONCLUSIONS In patients with lung cancer and brain metastases with solid tumor parts, ADC ratio enables an ad hoc differentiation of SCLC and NSCLC, easily achieved during routine neuroradiological examination. Non-invasive MR imaging enables an early-individualized management of brain metastases from lung cancer. TRIAL REGISTRATION The study was registered in the German Clinical Trials Register (DRKS00023016).
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Affiliation(s)
- Sebastian Johannes Müller
- Department of Diagnostic and Interventional Neuroradiology, Georg-August-University Göttingen, Robert-Koch-Str. 40, 37075, Göttingen, Germany.
| | - Eya Khadhraoui
- Department of Diagnostic and Interventional Neuroradiology, Georg-August-University Göttingen, Robert-Koch-Str. 40, 37075, Göttingen, Germany
| | - Nicole E Neef
- Department of Diagnostic and Interventional Neuroradiology, Georg-August-University Göttingen, Robert-Koch-Str. 40, 37075, Göttingen, Germany
| | - Christian Heiner Riedel
- Department of Diagnostic and Interventional Neuroradiology, Georg-August-University Göttingen, Robert-Koch-Str. 40, 37075, Göttingen, Germany
| | - Marielle Ernst
- Department of Diagnostic and Interventional Neuroradiology, Georg-August-University Göttingen, Robert-Koch-Str. 40, 37075, Göttingen, Germany
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15
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Lv Y, Ma X, Du Y, Feng J. Understanding Patterns of Brain Metastasis in Triple-Negative Breast Cancer and Exploring Potential Therapeutic Targets. Onco Targets Ther 2021; 14:589-607. [PMID: 33519208 PMCID: PMC7837592 DOI: 10.2147/ott.s293685] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 01/06/2021] [Indexed: 12/13/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is a highly malignant subtype of breast cancer. High invasiveness and heterogeneity, as well as a lack of drug targets, are the main factors leading to poor prognosis. Brain metastasis (BM) is a serious event threatening the life of breast cancer patients, especially those with TNBC. Compared with that for hormone receptor-positive and HER2-positive breast cancers, TNBC-derived BM (TNBCBM) occurs earlier and more frequently, and has a worse prognosis. There is no standard treatment for BM to date, and one is urgently required. In this review, we discuss the current knowledge regarding the developmental patterns of TNBCBM, focusing on the key events in BM formation. Specifically, we consider (i) the nature and function of TNBC cells; (ii) how TNBC cells cross the blood–brain barrier and form a fenestrated, more permeable blood–tumor barrier; (iii) the biological characteristics of TNBCBM; and (iv) the infiltration and colonization of the central nervous system (CNS) by TNBC cells, including the establishment of premetastatic niches, immunosurveillance escape, and metabolic adaptations. We also discuss putative therapeutic targets and precision therapy with the greatest potential to treat TNBCBM, and summarize the relevant completed and ongoing clinical trials. These findings may provide new insights into the prevention and treatment of BM in TNBC patients.
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Affiliation(s)
- Yan Lv
- The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing 210009, People's Republic of China
| | - Xiao Ma
- Department of General Surgery, The Affiliated Zhongda Hospital of Southeast University, Nanjing 210009, People's Republic of China
| | - Yuxin Du
- The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing 210009, People's Republic of China
| | - Jifeng Feng
- The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing 210009, People's Republic of China
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16
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Balancin ML, Teodoro WR, Baldavira CM, Prieto TG, Farhat C, Velosa AP, da Costa Souza P, Yaegashi LB, Ab'Saber AM, Takagaki TY, Capelozzi VL. Different histological patterns of type-V collagen levels confer a matrices-privileged tissue microenvironment for invasion in malignant tumors with prognostic value. Pathol Res Pract 2020; 216:153277. [PMID: 33223279 DOI: 10.1016/j.prp.2020.153277] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/27/2020] [Accepted: 10/28/2020] [Indexed: 02/08/2023]
Abstract
Previous studies have reported a close relationship between type V collagen (Col V) and tumor invasion and motility in both breast cancer (BC) and lung cancer (LC). The present work aims to determine whether the extracellular-matrix (ECM)-defined microenvironment influences patient clinical outcome and investigate to which extent histological patterns of Col V expression in malignant cells have a prognostic effect in patients. To that end, we examined the expression of Col V in the tissues of 174 primary tumors (MM, N = 82; LC, N = 41; and BC, N = 46) by immunohistochemistry. We found: (1) diffuse strong green birefringence in membrane and cytoplasm individualizing malignant cells in MM; (2) a focal and weak birefringence mainly in cytoplasmic membrane involving groups of malignant cells in LC and BC; (3) higher average H-score of Col V in MM than in LC and BC samples; (4) a direct correlation between Col V histologic pattern and TNM stage IV, status and median overall survival; (5) patients with LC in TNM stage I, and Col V ≤ 41.7 IOD/mm2 had a low risk of death and a median survival time more than 20 months; (6) patients with MM in TNM stage IV and Col V > 41.7 IOD/mm2 presented a high risk of death and a median survival time of just 20 months. These findings suggest that high levels of Col V individualizing malignant cells, as observed in MM, and low levels grouping malignant cells, as observed in LC and BC, confers different immune-privileged tissue microenvironment for tumor invasion with impact on prognosis of the patients.
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Affiliation(s)
- Marcelo Luiz Balancin
- Department of Pathology, University of São Paulo Medical School, São Paulo, SP, Brazil
| | - Walcy Rosolia Teodoro
- Rheumatology Division of the Hospital das Clinicas, University of São Paulo Medical School, São Paulo, SP, Brazil
| | | | | | - Cecilia Farhat
- Department of Pathology, University of São Paulo Medical School, São Paulo, SP, Brazil
| | - Ana Paula Velosa
- Rheumatology Division of the Hospital das Clinicas, University of São Paulo Medical School, São Paulo, SP, Brazil
| | - Paola da Costa Souza
- Department of Pathology, University of São Paulo Medical School, São Paulo, SP, Brazil
| | | | | | - Teresa Yae Takagaki
- Division of Pneumology, Heart Institute (Incor), University of São Paulo Medical School, Sao Paulo, Brazil
| | - Vera Luiza Capelozzi
- Department of Pathology, University of São Paulo Medical School, São Paulo, SP, Brazil.
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17
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Hainfeld JF, Ridwan SM, Stanishevskiy FY, Smilowitz HM. Iodine nanoparticle radiotherapy of human breast cancer growing in the brains of athymic mice. Sci Rep 2020; 10:15627. [PMID: 32973267 PMCID: PMC7515899 DOI: 10.1038/s41598-020-72268-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 08/18/2020] [Indexed: 12/16/2022] Open
Abstract
About 30% of breast cancers metastasize to the brain; those widely disseminated are fatal typically in 3-4 months, even with the best available treatments, including surgery, drugs, and radiotherapy. To address this dire situation, we have developed iodine nanoparticles (INPs) that target brain tumors after intravenous (IV) injection. The iodine then absorbs X-rays during radiotherapy (RT), creating free radicals and local tumor damage, effectively boosting the local RT dose at the tumor. Efficacy was tested using the very aggressive human triple negative breast cancer (TNBC, MDA-MB-231 cells) growing in the brains of athymic nude mice. With a well-tolerated non-toxic IV dose of the INPs (7 g iodine/kg body weight), tumors showed a heavily iodinated rim surrounding the tumor having an average uptake of 2.9% iodine by weight, with uptake peaks at 4.5%. This is calculated to provide a dose enhancement factor of approximately 5.5 (peaks at 8.0), the highest ever reported for any radiation-enhancing agents. With RT alone (15 Gy, single dose), all animals died by 72 days; INP pretreatment resulted in longer-term remissions with 40% of mice surviving 150 days and 30% surviving > 280 days.
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Affiliation(s)
- James F Hainfeld
- Nanoprobes, Inc., 95 Horseblock Rd., Unit 1, Yaphank, NY, 11980, USA.
| | - Sharif M Ridwan
- Department of Cell Biology, University of Connecticut Health Center, 263 Farmington Ave., Farmington, CT, 06030, USA
| | | | - Henry M Smilowitz
- Department of Cell Biology, University of Connecticut Health Center, 263 Farmington Ave., Farmington, CT, 06030, USA
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18
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Zhuyan J, Chen M, Zhu T, Bao X, Zhen T, Xing K, Wang Q, Zhu S. Critical steps to tumor metastasis: alterations of tumor microenvironment and extracellular matrix in the formation of pre-metastatic and metastatic niche. Cell Biosci 2020; 10:89. [PMID: 32742634 PMCID: PMC7388444 DOI: 10.1186/s13578-020-00453-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 07/21/2020] [Indexed: 02/07/2023] Open
Abstract
For decades, cancer metastasis has been a heated topic for its high mortality. Previous research has shown that pre-metastatic niche and metastatic niche are the 2 crucial steps in cancer metastasis, assisting cancerous cells' infiltration, survival, and colonization at target sites. More recent studies have unraveled details about the specific mechanisms related to the modification of pro-invasion environments. Here, we will review literatures on extracellular matrix (ECM) alterations, general cancer metastasis, organ specificity, pre-metastatic niche, metastatic niche, colony formation and impact on the course of metastasis. Respectively, the metastatic mechanisms like effect of hypoxia or inflammation on pre-metastatic niche construction, as well as the interaction between cancer cells and local milieu will be discussed. Based on the evidences of metastatic niches, we revisit and discussed the "Seed and Soil" hypothesis by Paget. This review will seek to provide insight into the mechanism of metastatic organ specificity which pre-metastatic niche and metastatic niche might suggest from an evolutionary aspect.
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Affiliation(s)
- Jianan Zhuyan
- School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai, 200438 China
- Shanghai Starriver Bilingual School, Shanghai, 201100 China
| | - Mingyu Chen
- Department of Neurosurgery, Huashan Hospital, Shanghai, 200040 China
| | - Tianhao Zhu
- Shanghai Starriver Bilingual School, Shanghai, 201100 China
| | - Xunxia Bao
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, 200093 China
| | - Timing Zhen
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, 200093 China
| | - Kaichen Xing
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, 200093 China
| | - Qiubo Wang
- Department of Clinical Laboratory, Wuxi 9th Affiliated Hospital of Soochow University, No.999 Liangxi Road, Wuxi, China
| | - Sibo Zhu
- School of Life Sciences, Fudan University, 2005 Songhu Road, Shanghai, 200438 China
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