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Norquest CJ, Rogic A, Gimotty PA, Maitz CA, Rindt H, Ashworth HL, Bryan JN, Donnelly LL, McCleary-Wheeler AL, Flesner BK. Effects of neoadjuvant zoledronate and radiation therapy on cell survival, cell cycle distribution, and clinical status in canine osteosarcoma. Front Vet Sci 2024; 11:1237084. [PMID: 38362299 PMCID: PMC10867971 DOI: 10.3389/fvets.2024.1237084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 01/12/2024] [Indexed: 02/17/2024] Open
Abstract
Introduction Zoledronic acid (ZOL) is a third-generation bisphosphonate with a higher affinity for bone resorption areas than earlier bisphosphonates (i.e., pamidronate, PAM). In human medicine, ZOL provides improved bone pain relief and prolonged time to skeletal-related events compared to its older generational counterparts. Preclinical studies have investigated its role as an anti-neoplastic agent, both independently and synergistically, with radiation therapy (RT). ZOL and RT act synergistically in several neoplastic human cell lines: prostate, breast, osteosarcoma, and fibrosarcoma. However, the exact mechanism of ZOL's radiosensitization has not been fully elucidated. Methods We investigated ZOL's ability to induce apoptosis in canine osteosarcoma cell lines treated with various doses of megavoltage external beam radiotherapy. Second, we evaluated cell cycle arrest in ZOL-treated cells to assess several neo-adjuvant time points. Finally, we treated 20 dogs with naturally occurring appendicular OS with 0.1 mg/kg ZOL IV 24 h before receiving 8 Gy of RT (once weekly fraction x 4 weeks). Results We found that apoptosis was increased in all ZOL-treated cell lines compared to controls, and the combination of ZOL and RT resulted in dissimilar apoptosis between Abrams and D-17 and HMPOS cell lines. Cell cycle arrest (G2/M phase) was minimal and variable between cell lines but perhaps greatest at 48 h post-ZOL treatment. Only 10% of dogs treated with ZOL and RT developed pathologic fractures, compared to 44% of dogs historically treated with PAM and RT (p = 0.027). Discussion ZOL and RT appear to be a well-tolerated combination treatment scheme for non-surgical candidates; future studies must elucidate the ideal timing of ZOL.
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Affiliation(s)
- Carissa J. Norquest
- Department of Veterinary Medicine & Surgery, University of Missouri College of Veterinary Medicine, Columbia, MO, United States
| | - Anita Rogic
- Department of Veterinary Medicine & Surgery, University of Missouri College of Veterinary Medicine, Columbia, MO, United States
| | - Phyllis A. Gimotty
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania School of Medicine, Philadelphia, PA, United States
| | - Charles A. Maitz
- Department of Veterinary Medicine & Surgery, University of Missouri College of Veterinary Medicine, Columbia, MO, United States
| | - Hansjorg Rindt
- Department of Veterinary Medicine & Surgery, University of Missouri College of Veterinary Medicine, Columbia, MO, United States
| | - Hayley L. Ashworth
- Department of Veterinary Medicine & Surgery, University of Missouri College of Veterinary Medicine, Columbia, MO, United States
| | - Jeffrey N. Bryan
- Department of Veterinary Medicine & Surgery, University of Missouri College of Veterinary Medicine, Columbia, MO, United States
| | - Lindsay L. Donnelly
- Department of Veterinary Medicine & Surgery, University of Missouri College of Veterinary Medicine, Columbia, MO, United States
| | - Angela L. McCleary-Wheeler
- Department of Veterinary Medicine & Surgery, University of Missouri College of Veterinary Medicine, Columbia, MO, United States
| | - Brian K. Flesner
- Department of Veterinary Medicine & Surgery, University of Missouri College of Veterinary Medicine, Columbia, MO, United States
- Department of Clinical Sciences & Advanced Medicine, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA, United States
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Fernandez-Rodriguez R, Cuadrado-Castano S, Javaheri A, Bykov Y, Edwards A, Mena I, Dasilva-Freire N, Rogic A, Kamphorst AO, Karlic R, Horowitz A, García-Sastre A, Skobe M. Preclinical studies of the anti-tumor effects of novel Avian paramyxovirus 4 (APMV-4) oncolytic viral therapy combined with vascular endothelial growth factor-C (VEGF-C) in melanoma. J Clin Oncol 2022. [DOI: 10.1200/jco.2022.40.16_suppl.e15050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e15050 Background: Avian paramyxoviruses (APMVs) are negative-sense, single-stranded RNA viruses, of which best known is APMV-1, commonly referred to as Newcastle disease virus (NDV). NDV has been extensively studied as an oncolytic virus (OV) and has been shown to be a promising viral agent for human cancer therapy. We identified APMV-4 as a novel OV from the APMV family, with several advantages over NDV and other classes of OVs. APMV-4 is selective for cancer cells, it is not a human pathogen, there is no pre-existing immunity to this virus in humans, and it can be engineered to deliver various therapeutics. Here, we investigated anti-tumor properties of APMV-4 in mouse tumor models, and the role of Vascular Endothelial Growth Factor-C (VEGF-C), a key lymphangiogenesis factor, on therapeutic effects of AMPV-4. Methods: Anti-tumor effects of OVs were assessed using B16F10 melanoma and CT26.WT colon carcinoma in syngeneic mouse models. Tumor cells were injected intradermally into the flank, and treatment commenced when tumors reached ̃50mm3. Viruses were injected intratumorally (107 PFU) every two days, for a total of four treatments. For studies of VEGF-C, B16F10 cells were transfected with VEGF-C or with an empty vector. Tumor regression and long-term survival were assessed. Mice in complete remission were re-challenged with tumor cells on the opposite side. High-dimensional immunophenotyping using Aurora Spectral flow cytometry was performed on tumor samples collected 12 hr after the 2nd treatment with OVs. Results: Intratumoral administration of APMV-4 extended survival, promoted tumor elimination and conferred protection against re-challenge in murine colon carcinoma and melanoma tumor models, and was more effective than NDV strain LaSota. Expression of VEGF-C in B16F10 melanoma enhanced anti-tumor effects of APMV-4 or NDV, resulting in complete remission in 100% and 86% of mice, respectively (n = 7). Mice remained tumor-free during the 90-day observation period, and following re-challenge remained tumor-free for more than a year. Protection from tumor development upon re-challenge was observed in 71% and 83% of mice treated with APMV-4 or NDV, respectively. Results are representative of two experiments. VEGF-C expression in tumors induced lymphangiogenesis, which correlated with high T-cell densities. Analysis of tumor immune cell composition by flow cytometry revealed multiple unique T-cell and NK-cell subsets associated with complete remission. Conclusions: These studies identify APMV-4 as a novel oncolytic agent with great therapeutic potential and VEGF-C as potent enhancer of anti-tumor immunity. High anti-tumor efficacy of APMV-4/VEGF-C monotherapy, that in preclinical models leads to tumor eradication, indicates great therapeutic and vaccine potential of APMV-4 when combined with VEGF-C.
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Affiliation(s)
| | | | - Aryana Javaheri
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Yonina Bykov
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Andrew Edwards
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Ignacio Mena
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY
| | | | - Anita Rogic
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY
| | | | - Rosa Karlic
- Bioinformatics group, Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, Zagreb, Croatia
| | - Amir Horowitz
- Precision Immunology Institute/Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | | | - Mihaela Skobe
- Icahn School of Medicine at Mount Sinai, New York, NY
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Rogic A, Pant I, Grumolato L, Fernandez-Rodriguez R, Edwards A, Das S, Sun A, Yao S, Qiao R, Jaffer S, Sachidanandam R, Akturk G, Karlic R, Skobe M, Aaronson SA. High endogenous CCL2 expression promotes the aggressive phenotype of human inflammatory breast cancer. Nat Commun 2021; 12:6889. [PMID: 34824220 PMCID: PMC8617270 DOI: 10.1038/s41467-021-27108-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 11/02/2021] [Indexed: 12/13/2022] Open
Abstract
Inflammatory Breast Cancer (IBC) is a highly aggressive malignancy with distinct clinical and histopathological features whose molecular basis is unresolved. Here we describe a human IBC cell line, A3250, that recapitulates key IBC features in a mouse xenograft model, including skin erythema, diffuse tumor growth, dermal lymphatic invasion, and extensive metastases. A3250 cells express very high levels of the CCL2 chemokine and induce tumors enriched in macrophages. CCL2 knockdown leads to a striking reduction in macrophage densities, tumor proliferation, skin erythema, and metastasis. These results establish IBC-derived CCL2 as a key factor driving macrophage expansion, and indirectly tumor growth, with transcriptomic analysis demonstrating the activation of multiple inflammatory pathways. Finally, primary human IBCs exhibit macrophage infiltration and an enriched macrophage RNA signature. Thus, this human IBC model provides insight into the distinctive biology of IBC, and highlights potential therapeutic approaches to this deadly disease. Inflammatory breast cancer (IBC) is an aggressive form of breast cancer with a poor prognosis. Here the authors report the characterization of a human IBC cell line recapitulating the clinical and histopathological features of the human disease, and implicating its high level of CCL2 in macrophage infiltration and tumor progression.
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Affiliation(s)
- Anita Rogic
- Laboratory of Cancer Lymphangiogenesis, Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Ila Pant
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Luca Grumolato
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Normandie University, UNIROUEN, INSERM, DC2N, Rouen, France
| | - Ruben Fernandez-Rodriguez
- Laboratory of Cancer Lymphangiogenesis, Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Andrew Edwards
- Laboratory of Cancer Lymphangiogenesis, Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Suvendu Das
- Laboratory of Cancer Lymphangiogenesis, Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Institute of Advanced Research, Department of Biological Sciences and Biotechnology, Koba Institutional, Area, Gandhinagar 382 426, Gujarat, India
| | - Aaron Sun
- Laboratory of Cancer Lymphangiogenesis, Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Shen Yao
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Rui Qiao
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Shabnam Jaffer
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Ravi Sachidanandam
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Guray Akturk
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Rosa Karlic
- Bioinformatics group, Division of Molecular Biology, Department of Biology, Faculty of Science, University of Zagreb, Zagreb, Croatia
| | - Mihaela Skobe
- Laboratory of Cancer Lymphangiogenesis, Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA. .,Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
| | - Stuart A Aaronson
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA. .,Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
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Akturk G, Parra ER, Gjini E, Lako A, Lee JJ, Neuberg D, Zhang J, Yao S, Laface I, Rogic A, Chen PH, Sanchez-Espiridion B, Valle DMD, Moravec R, Kinders R, Hudgens C, Wu C, Wistuba II, Thurin M, Hewitt SM, Rodig S, Gnjatic S, Tetzlaff MT. Multiplex Tissue Imaging Harmonization: A Multicenter Experience from CIMAC-CIDC Immuno-Oncology Biomarkers Network. Clin Cancer Res 2021; 27:5072-5083. [PMID: 34253580 PMCID: PMC9777693 DOI: 10.1158/1078-0432.ccr-21-2051] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 07/05/2021] [Accepted: 07/06/2021] [Indexed: 01/07/2023]
Abstract
PURPOSE The Cancer Immune Monitoring and Analysis Centers - Cancer Immunologic Data Commons (CIMAC-CIDC) network supported by the NCI Cancer Moonshot initiative was established to provide correlative analyses for clinical trials in cancer immunotherapy, using state-of-the-art technology. Fundamental to this initiative is implementation of multiplex IHC assays to define the composition and distribution of immune infiltrates within tumors in the context of their potential role as biomarkers. A critical unanswered question involves the relative fidelity of such assays to reliably quantify tumor-associated immune cells across different platforms. EXPERIMENTAL DESIGN Three CIMAC sites compared across their laboratories: (i) image analysis algorithms, (ii) image acquisition platforms, (iii) multiplex staining protocols. Two distinct high-dimensional approaches were employed: multiplexed IHC consecutive staining on single slide (MICSSS) and multiplexed immunofluorescence (mIF). To eliminate variables potentially impacting assay performance, we completed a multistep harmonization process, first comparing assay performance using independent protocols followed by the integration of laboratory-specific protocols and finally, validating this harmonized approach in an independent set of tissues. RESULTS Data generated at the final validation step showed an intersite Spearman correlation coefficient (r) of ≥0.85 for each marker within and across tissue types, with an overall low average coefficient of variation ≤0.1. CONCLUSIONS Our results support interchangeability of protocols and platforms to deliver robust, and comparable data using similar tissue specimens and confirm that CIMAC-CIDC analyses may therefore be used with confidence for statistical associations with clinical outcomes largely independent of site, antibody selection, protocol, and platform across different sites.
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Affiliation(s)
- Guray Akturk
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York City, New York
| | - Edwin R Parra
- Translational Molecular Pathology-Dermatopathology Laboratory, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Evisa Gjini
- Center for Immuno-Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Ana Lako
- Center for Immuno-Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - J Jack Lee
- Translational Molecular Pathology-Dermatopathology Laboratory, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | | | - Jiexin Zhang
- Translational Molecular Pathology-Dermatopathology Laboratory, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Shen Yao
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York City, New York
| | - Ilaria Laface
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York City, New York
| | - Anita Rogic
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York City, New York
| | | | - Beatriz Sanchez-Espiridion
- Translational Molecular Pathology-Dermatopathology Laboratory, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Diane M Del Valle
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York City, New York
| | - Radim Moravec
- Kelly Services; Division of Cancer Treatment and Diagnosis, National Cancer Institute, NIH, Bethesda, Maryland
| | - Robert Kinders
- Leidos Biomedical Research Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland
| | - Courtney Hudgens
- Translational Molecular Pathology-Dermatopathology Laboratory, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Catherine Wu
- Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Ignacio I Wistuba
- Translational Molecular Pathology-Dermatopathology Laboratory, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Magdalena Thurin
- Division of Cancer Treatment and Diagnosis, National Cancer Institute, NIH, Bethesda, Maryland
| | - Stephen M Hewitt
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland
| | - Scott Rodig
- Center for Immuno-Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
- Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Sacha Gnjatic
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York City, New York
| | - Michael T Tetzlaff
- Translational Molecular Pathology-Dermatopathology Laboratory, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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Edwards AK, Skobe M, Rogic A, Bosenberg M. Abstract B156: Characterization and role of CCR8+ regulatory T-cells in mouse models of malignant melanoma. Cancer Immunol Res 2019. [DOI: 10.1158/2326-6074.cricimteatiaacr18-b156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Melanoma cells disseminate through lymphatic vasculature into the regional lymph nodes early in disease progression. We found that a large subset of metastatic melanomas express chemokine receptor CCR8. Its principal ligand, CCL1, is constitutively expressed by lymphatic endothelial cells in the lymph node and is further upregulated by inflammation. The CCL1-CCR8 axis is an important checkpoint for melanoma lymph node metastasis, as an inhibition of CCR8 leads to arrest of melanoma cells in collecting lymphatic vessels and prevents lymph node metastasis. Among immune cells, CCR8 is predominantly expressed by regulatory T-cells (Treg) and by activated Th2 cells, and has been implicated mainly in allergic inflammation. Here we characterized CCR8+ immune cells and examined the role of CCR8 in mouse models of melanoma. Using inducible, genetically engineered (Tyr::CreER;BrafCAPtenloxPCtnnb1loxex3) and syngeneic mouse models of melanoma (B16F10) we characterized CCR8 expression on different immune cell subsets in primary tumors and in sentinel lymph nodes by flow cytometry. In primary tumors, CCR8 was exclusively expressed by CD4+ T-cells, with the highest percentage being FOXP3+CCR8+ Tregs. Increased numbers of CD4+FOXP3+CCR8+ Tregs were found in sentinel lymph nodes with metastases, compared to non-tumor-draining lymph nodes and lymph nodes from tumor-naïve mice. This also corresponded with an increase in the total number of FOXP3+ T-regs in sentinel lymph nodes, compared to non-tumor draining lymph nodes. We then evaluated the role of CCR8 on B16F10 tumor growth. Tumor growth was significantly reduced in CCR8-/- mice compared to WT mice when anti-tumor immunity was stimulated with Poly(I:C). However, B16F10 tumor growth did not differ between untreated wild-type (WT) and CCR8 -/- mice. These results suggest that targeting CCR8+ Tregs may increase antitumor immune response. Further studies are required to determine the mechanism by which CCR8+ immune cells facilitate melanoma growth and to explore CCR8 as a therapeutic target in melanoma immunotherapy.
Citation Format: Andrew K. Edwards, Mihaela Skobe, Anita Rogic, Marcus Bosenberg. Characterization and role of CCR8+ regulatory T-cells in mouse models of malignant melanoma [abstract]. In: Proceedings of the Fourth CRI-CIMT-EATI-AACR International Cancer Immunotherapy Conference: Translating Science into Survival; Sept 30-Oct 3, 2018; New York, NY. Philadelphia (PA): AACR; Cancer Immunol Res 2019;7(2 Suppl):Abstract nr B156.
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Affiliation(s)
- Andrew K. Edwards
- Mount Sinai School of Medicine, New York, NY; Yale University, New Haven, CT
| | - Mihaela Skobe
- Mount Sinai School of Medicine, New York, NY; Yale University, New Haven, CT
| | - Anita Rogic
- Mount Sinai School of Medicine, New York, NY; Yale University, New Haven, CT
| | - Marcus Bosenberg
- Mount Sinai School of Medicine, New York, NY; Yale University, New Haven, CT
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Abstract
Studies of lymphangiogenesis and lymphatic endothelial biology in vitro require pure cultures of lymphatic endothelial cells and 3D vascular constructs, which closely resemble native human lymphatic vasculature. We describe a method for the isolation of human dermal microvascular lymphatic endothelial cells and generation of a 3D lymphatic capillary network. The lymphatic vascular construct is generated by coculturing primary lymphatic endothelial cells and fibroblasts in their native matrix, without the use of synthetic scaffolds or exogenous factors. The tissue is stable over many weeks and accurately recapitulates features of human dermal lymphatic microvasculature.
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Affiliation(s)
- Anita Rogic
- Department of Oncological Sciences and Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Francois Auger
- Centre LOEX de l'Université Laval, Regenerative Medicine Section of the FRQS Research Center of the CHU de Québec, Quebec, QC, Canada
| | - Mihaela Skobe
- Department of Oncological Sciences and Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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Gibot L, Galbraith T, Bourland J, Rogic A, Skobe M, Auger FA. Tissue-engineered 3D human lymphatic microvascular network for in vitro studies of lymphangiogenesis. Nat Protoc 2017; 12:1077-1088. [DOI: 10.1038/nprot.2017.025] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Rogic A, Dubois G, Tessier N, Paré P, Canac-Marquis P, Lapointe FJ. Applying genetic methods to identify northern and southern flying squirrels and determine conservation needs. CONSERV GENET RESOUR 2016. [DOI: 10.1007/s12686-016-0569-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Lapointe M, Rogic A, Bourgoin S, Jolicoeur C, Séguin D. Leading-edge forensic DNA analyses and the necessity of including crime scene investigators, police officers and technicians in a DNA elimination database. Forensic Sci Int Genet 2015; 19:50-55. [PMID: 26117338 DOI: 10.1016/j.fsigen.2015.06.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Revised: 05/19/2015] [Accepted: 06/08/2015] [Indexed: 11/18/2022]
Abstract
In recent years, sophisticated technology has significantly increased the sensitivity and analytical power of genetic analyses so that very little starting material may now produce viable genetic profiles. This sensitivity however, has also increased the risk of detecting unknown genetic profiles assumed to be that of the perpetrator, yet originate from extraneous sources such as from crime scene workers. These contaminants may mislead investigations, keeping criminal cases active and unresolved for long spans of time. Voluntary submission of DNA samples from crime scene workers is fairly low, therefore we have created a promotional method for our staff elimination database that has resulted in a significant increase in voluntary samples since 2011. Our database enforces privacy safeguards and allows for optional anonymity to all staff members. We also offer information sessions at various police precincts to advise crime scene workers of the importance and success of our staff elimination database. This study, a pioneer in its field, has obtained 327 voluntary submissions from crime scene workers to date, of which 46 individual profiles (14%) have been matched to 58 criminal cases. By implementing our methods and respect for individual privacy, forensic laboratories everywhere may see similar growth and success in explaining unidentified genetic profiles in stagnate criminal cases.
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Affiliation(s)
- Martine Lapointe
- Laboratoire de Sciences Judiciaires et de Médecine Légale, Direction Biologie/ADN, 1701 Parthenais, Montréal, Québec H2K 3S7, Canada.
| | - Anita Rogic
- Laboratoire de Sciences Judiciaires et de Médecine Légale, Direction Biologie/ADN, 1701 Parthenais, Montréal, Québec H2K 3S7, Canada.
| | - Sarah Bourgoin
- Laboratoire de Sciences Judiciaires et de Médecine Légale, Direction Biologie/ADN, 1701 Parthenais, Montréal, Québec H2K 3S7, Canada.
| | - Christine Jolicoeur
- Laboratoire de Sciences Judiciaires et de Médecine Légale, Direction Biologie/ADN, 1701 Parthenais, Montréal, Québec H2K 3S7, Canada.
| | - Diane Séguin
- Laboratoire de Sciences Judiciaires et de Médecine Légale, Direction Biologie/ADN, 1701 Parthenais, Montréal, Québec H2K 3S7, Canada.
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Simon JA, Marrotte RR, Desrosiers N, Fiset J, Gaitan J, Gonzalez A, Koffi JK, Lapointe FJ, Leighton PA, Lindsay LR, Logan T, Milord F, Ogden NH, Rogic A, Roy-Dufresne E, Suter D, Tessier N, Millien V. Climate change and habitat fragmentation drive the occurrence of Borrelia burgdorferi, the agent of Lyme disease, at the northeastern limit of its distribution. Evol Appl 2014; 7:750-64. [PMID: 25469157 PMCID: PMC4227856 DOI: 10.1111/eva.12165] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Accepted: 04/05/2014] [Indexed: 12/15/2022] Open
Abstract
Lyme borreliosis is rapidly emerging in Canada, and climate change is likely a key driver of the northern spread of the disease in North America. We used field and modeling approaches to predict the risk of occurrence of Borrelia burgdorferi, the bacteria causing Lyme disease in North America. We combined climatic and landscape variables to model the current and future (2050) potential distribution of the black-legged tick and the white-footed mouse at the northeastern range limit of Lyme disease and estimated a risk index for B. burgdorferi from these distributions. The risk index was mostly constrained by the distribution of the white-footed mouse, driven by winter climatic conditions. The next factor contributing to the risk index was the distribution of the black-legged tick, estimated from the temperature. Landscape variables such as forest habitat and connectivity contributed little to the risk index. We predict a further northern expansion of B. burgdorferi of approximately 250–500 km by 2050 – a rate of 3.5–11 km per year – and identify areas of rapid rise in the risk of occurrence of B. burgdorferi. Our results will improve understanding of the spread of Lyme disease and inform management strategies at the most northern limit of its distribution.
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Affiliation(s)
- Julie A Simon
- Redpath Museum, McGill University Montreal, QC, Canada
| | - Robby R Marrotte
- Redpath Museum, McGill University Montreal, QC, Canada ; Department of Biology, McGill University Montreal, QC, Canada
| | - Nathalie Desrosiers
- Ministère du Développement Durable, de l'Environnement, de la Faune et des Parcs du Québec City, QC, Canada
| | - Jessica Fiset
- Département des Sciences Biologiques, Université de Montréal Montréal, QC, Canada
| | - Jorge Gaitan
- Redpath Museum, McGill University Montreal, QC, Canada
| | - Andrew Gonzalez
- Department of Biology, McGill University Montreal, QC, Canada
| | - Jules K Koffi
- Zoonoses Division, Centre for Food-Borne, Environmental & Zoonotic Infectious Diseases, Public Health Agency of Canada Saint-Hyacinthe, QC, Canada
| | | | - Patrick A Leighton
- Groupe de recherche en épidémiologie des zoonoses et santé publique Faculté de Médecine Vétérinaire, Université de Montréal Saint-Hyacinthe, QC, Canada
| | - Lindsay R Lindsay
- Zoonoses & Special Pathogens Division, National Microbiology Laboratory, Public Health Agency of Canada Winnipeg, MB, Canada
| | | | - Francois Milord
- Institut National de Santé Publique du Québec Longueuil, QC, Canada
| | - Nicholas H Ogden
- Groupe de recherche en épidémiologie des zoonoses et santé publique Faculté de Médecine Vétérinaire, Université de Montréal Saint-Hyacinthe, QC, Canada
| | - Anita Rogic
- Redpath Museum, McGill University Montreal, QC, Canada ; Département des Sciences Biologiques, Université de Montréal Montréal, QC, Canada
| | | | - Daniel Suter
- Redpath Museum, McGill University Montreal, QC, Canada
| | - Nathalie Tessier
- Département des Sciences Biologiques, Université de Montréal Montréal, QC, Canada
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Rogic A, Tessier N, Legendre P, Lapointe FJ, Millien V. Genetic structure of the white-footed mouse in the context of the emergence of Lyme disease in southern Québec. Ecol Evol 2013; 3:2075-88. [PMID: 23919153 PMCID: PMC3728948 DOI: 10.1002/ece3.620] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2013] [Revised: 04/26/2013] [Accepted: 04/29/2013] [Indexed: 11/06/2022] Open
Abstract
The white-footed mouse (Peromyscus leucopus) has expanded its northern limit into southern Québec over the last few decades. P. leucopus is a great disperser and colonizer and is of particular interest because it is considered a primary reservoir for the spirochete bacterium that causes Lyme disease. There is no current information on the gene flow between mouse populations on the mountains and forest fragments found scattered throughout the Montérégie region in southern Québec, and whether various landscape barriers have an effect on their dispersal. We conducted a population genetics analysis on eleven P. leucopus populations using eleven microsatellite markers and showed that isolation by distance was weak, yet barriers were effective. The agricultural matrix had the least effect on gene flow, whereas highways and main rivers were effective barriers. The abundance of ticks collected from mice varied within the study area. Both ticks and mice were screened for the presence of the spirochete bacterium Borrelia burgdorferi, and we predicted areas of greater risk for Lyme disease. Merging our results with ongoing Lyme disease surveillance programs will help determine the future threat of this disease in Québec, and will contribute toward disease prevention and management strategies throughout fragmented landscapes in southern Canada.
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Affiliation(s)
- Anita Rogic
- Redpath Museum, McGill University 859 Sherbrooke Street W., Montréal, Québec, H3A 0C4, Canada
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