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Rossano S, Toyonaga T, Berg E, Lorence I, Fowles K, Nabulsi N, Ropchan J, Li S, Ye Y, Felchner Z, Kukis D, Huang Y, Benveniste H, Tarantal AF, Groman S, Carson RE. Imaging the fetal nonhuman primate brain with SV2A positron emission tomography (PET). Eur J Nucl Med Mol Imaging 2022; 49:3679-3691. [PMID: 35633376 PMCID: PMC9826644 DOI: 10.1007/s00259-022-05825-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 04/26/2022] [Indexed: 01/11/2023]
Abstract
PURPOSE Exploring synaptic density changes during brain growth is crucial to understanding brain development. Previous studies in nonhuman primates report a rapid increase in synapse number between the late gestational period and the early neonatal period, such that synaptic density approaches adult levels by birth. Prenatal synaptic development may have an enduring impact on postnatal brain development, but precisely how synaptic density changes in utero are unknown because current methods to quantify synaptic density are invasive and require post-mortem brain tissue. METHODS We used synaptic vesicle glycoprotein 2A (SV2A) positron emission tomography (PET) radioligands [11C]UCB-J and [18F]Syn-VesT-1 to conduct the first assessment of synaptic density in the developing fetal brain in gravid rhesus monkeys. Eight pregnant monkeys were scanned twice during the third trimester at two imaging sites. Fetal post-mortem samples were collected near term in a subset of subjects to quantify SV2A density by Western blot. RESULTS Image-derived fetal brain SV2A measures increased during the third trimester. SV2A concentrations were greater in subcortical regions than in cortical regions at both gestational ages. Near term, SV2A density was higher in primary motor and visual areas than respective associative regions. Post-mortem quantification of SV2A density was significantly correlated with regional SV2A PET measures. CONCLUSION While further study is needed to determine the exact relationship of SV2A and synaptic density, the imaging paradigm developed in the current study allows for the effective in vivo study of SV2A development in the fetal brain.
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Affiliation(s)
- Samantha Rossano
- Department of Radiology and Biomedical Imaging, Yale PET Center, Yale School of Medicine, New Haven, CT, USA.
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA.
| | - Takuya Toyonaga
- Department of Radiology and Biomedical Imaging, Yale PET Center, Yale School of Medicine, New Haven, CT, USA
| | - Eric Berg
- Department of Biomedical Engineering, University of California, Davis, CA, USA
| | - Isabella Lorence
- Department of Radiology and Biomedical Imaging, Yale PET Center, Yale School of Medicine, New Haven, CT, USA
| | - Krista Fowles
- Department of Radiology and Biomedical Imaging, Yale PET Center, Yale School of Medicine, New Haven, CT, USA
| | - Nabeel Nabulsi
- Department of Radiology and Biomedical Imaging, Yale PET Center, Yale School of Medicine, New Haven, CT, USA
| | - Jim Ropchan
- Department of Radiology and Biomedical Imaging, Yale PET Center, Yale School of Medicine, New Haven, CT, USA
| | - Songye Li
- Department of Radiology and Biomedical Imaging, Yale PET Center, Yale School of Medicine, New Haven, CT, USA
| | - Yunpeng Ye
- Department of Radiology and Biomedical Imaging, Yale PET Center, Yale School of Medicine, New Haven, CT, USA
| | - Zachary Felchner
- Department of Radiology and Biomedical Imaging, Yale PET Center, Yale School of Medicine, New Haven, CT, USA
| | - David Kukis
- Center for Molecular and Genomic Imaging, University of California, Davis, CA, USA
| | - Yiyun Huang
- Department of Radiology and Biomedical Imaging, Yale PET Center, Yale School of Medicine, New Haven, CT, USA
| | - Helene Benveniste
- Department of Anesthesiology, Yale School of Medicine, Yale University, New Haven, CT, USA
| | - Alice F Tarantal
- Departments of Pediatrics and Cell Biology and Human Anatomy, School of Medicine, and California National Primate Research Center, University of California, Davis, CA, USA
| | - Stephanie Groman
- Department of Psychiatry, Yale University, New Haven, CT, USA
- Department of Neuroscience, University of Minnesota, Minneapolis, MN, USA
| | - Richard E Carson
- Department of Radiology and Biomedical Imaging, Yale PET Center, Yale School of Medicine, New Haven, CT, USA
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
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Reis ES, Berger N, Wang X, Koutsogiannaki S, Doot RK, Gumas JT, Foukas PG, Resuello RRG, Tuplano JV, Kukis D, Tarantal AF, Young AJ, Kajikawa T, Soulika AM, Mastellos DC, Yancopoulou D, Biglarnia AR, Huber-Lang M, Hajishengallis G, Nilsson B, Lambris JD. Safety profile after prolonged C3 inhibition. Clin Immunol 2018; 197:96-106. [PMID: 30217791 DOI: 10.1016/j.clim.2018.09.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 09/09/2018] [Indexed: 01/21/2023]
Abstract
The central component of the complement cascade, C3, is involved in various biological functions, including opsonization of foreign bodies, clearance of waste material, activation of immune cells, and triggering of pathways controlling development. Given its broad role in immune responses, particularly in phagocytosis and the clearance of microbes, a deficiency in complement C3 in humans is often associated with multiple bacterial infections. Interestingly, an increased susceptibility to infections appears to occur mainly in the first two years of life and then wanes throughout adulthood. In view of the well-established connection between C3 deficiency and infections, therapeutic inhibition of complement at the level of C3 is often considered with caution or disregarded. We therefore set out to investigate the immune and biochemical profile of non-human primates under prolonged treatment with the C3 inhibitor compstatin (Cp40 analog). Cynomolgus monkeys were dosed subcutaneously with Cp40, resulting in systemic inhibition of C3, for 1 week, 2 weeks, or 3 months. Plasma concentrations of both C3 and Cp40 were measured periodically and complete saturation of plasma C3 was confirmed. No differences in hematological, biochemical, or immunological parameters were identified in the blood or tissues of animals treated with Cp40 when compared to those injected with vehicle alone. Further, skin wounds showed no signs of infection in those treated with Cp40. In fact, Cp40 treatment was associated with a trend toward accelerated wound healing when compared with the control group. In addition, a biodistribution study in a rhesus monkey indicated that the distribution of Cp40 in the body is associated with the presence of C3, concentrating in organs that accumulate blood and produce C3. Overall, our data suggest that systemic C3 inhibition in healthy adult non-human primates is not associated with a weakened immune system or susceptibility to infections.
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Affiliation(s)
- Edimara S Reis
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Nadja Berger
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Xin Wang
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Sophia Koutsogiannaki
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Robert K Doot
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Justin T Gumas
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Periklis G Foukas
- 2nd Department of Pathology, National and Kapodistrian University of Athens, Attikon University Hospital, Athens, Greece
| | - Ranillo R G Resuello
- Simian Conservation Breeding and Research Center (SICONBREC), Makati City, Philippines
| | - Joel V Tuplano
- Simian Conservation Breeding and Research Center (SICONBREC), Makati City, Philippines
| | - David Kukis
- Center for Molecular and Genomic Imaging, University of California, Davis, CA 95616, USA
| | - Alice F Tarantal
- Departments of Pediatrics and Cell Biology and Human Anatomy, School of Medicine, and California National Primate Research Center, University of California, Davis, CA 95616, USA
| | - Anthony J Young
- Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Tetsuhiro Kajikawa
- Department of Microbiology, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Athena M Soulika
- Department of Dermatology, University of California, Davis, CA 95616, USA
| | | | | | - Ali-Reza Biglarnia
- Department of Transplantation, Skane University Hospital, Lund University, Lund, Sweden
| | - Markus Huber-Lang
- Institute of Clinical and Experimental Trauma-Immunology, University Hospital Ulm, Ulm, Germany
| | - George Hajishengallis
- Department of Microbiology, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Bo Nilsson
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - John D Lambris
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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Hostetler CM, Hinde K, Maninger N, Mendoza SP, Mason WA, Rowland DJ, Wang GB, Kukis D, Cherry SR, Bales KL. Effects of pair bonding on dopamine D1 receptors in monogamous male titi monkeys (Callicebus cupreus). Am J Primatol 2016; 79:1-9. [PMID: 27757971 DOI: 10.1002/ajp.22612] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 09/09/2016] [Accepted: 09/09/2016] [Indexed: 12/24/2022]
Abstract
Pair bonding leads to increases in dopamine D1 receptor (D1R) binding in the nucleus accumbens of monogamous prairie voles. In the current study, we hypothesized that there is similar up-regulation of D1R in a monogamous primate, the titi monkey (Callicebus cupreus). Receptor binding of the D1R antagonist [11 C]-SCH23390 was measured in male titi monkeys using PET scans before and after pairing with a female. We found that within-subject analyses of pairing show significant increases in D1R binding in the lateral septum, but not the nucleus accumbens, caudate, putamen, or ventral pallidum. The lateral septum is involved in a number of processes that may contribute to social behavior, including motivation, affect, reward, and reinforcement. This region also plays a role in pair bonding and paternal behavior in voles. Our observations of changes in D1R in the lateral septum, but not the nucleus accumbens, suggest that there may be broadly similar dopaminergic mechanisms underlying pair bonding across mammalian species, but that the specific changes to neural circuitry differ. This study is the first research to demonstrate neuroplasticity of the dopamine system following pair bonding in a non-human primate; however, substantial variability in the response to pairing suggests the utility of further research on the topic.
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Affiliation(s)
- Caroline M Hostetler
- Oregon Health and Science University, Portland, Oregon.,California National Primate Research Center, Davis, California.,Department of Psychology, University of California, Davis, California
| | - Katherine Hinde
- California National Primate Research Center, Davis, California.,School of Human Evolution and Social Change, Center for Evolution and Medicine, Arizona State University, Tempe, Arizona
| | - Nicole Maninger
- California National Primate Research Center, Davis, California
| | - Sally P Mendoza
- California National Primate Research Center, Davis, California.,Department of Psychology, University of California, Davis, California
| | - William A Mason
- California National Primate Research Center, Davis, California.,Department of Psychology, University of California, Davis, California
| | - Douglas J Rowland
- Center for Molecular and Genomic Imaging, University of California, Davis, California
| | - Guobao B Wang
- Department of Radiology, University of California, Davis, California
| | - David Kukis
- Center for Molecular and Genomic Imaging, University of California, Davis, California
| | - Simon R Cherry
- Center for Molecular and Genomic Imaging, University of California, Davis, California.,Department of Biomedical Engineering, University of California, Davis, California
| | - Karen L Bales
- California National Primate Research Center, Davis, California.,Department of Psychology, University of California, Davis, California
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Li Y, Lin TY, Luo Y, Liu Q, Xiao W, Guo W, Lac D, Zhang H, Feng C, Wachsmann-Hogiu S, Walton JH, Cherry SR, Rowland DJ, Kukis D, Pan C, Lam KS. A smart and versatile theranostic nanomedicine platform based on nanoporphyrin. Nat Commun 2014; 5:4712. [PMID: 25158161 PMCID: PMC4145614 DOI: 10.1038/ncomms5712] [Citation(s) in RCA: 293] [Impact Index Per Article: 29.3] [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: 04/25/2014] [Accepted: 07/16/2014] [Indexed: 02/05/2023] Open
Abstract
Multifunctional nanoparticles with combined diagnostic and therapeutic functions show great promise towards personalized nanomedicine. However, attaining consistently high performance of these functions in vivo in one single nanoconstruct remains extremely challenging. Here we demonstrate the use of one single polymer to develop a smart 'all-in-one' nanoporphyrin platform that conveniently integrates a broad range of clinically relevant functions. Nanoporphyrins can be used as amplifiable multimodality nanoprobes for near-infrared fluorescence imaging (NIRFI), magnetic resonance imaging (MRI), positron emission tomography (PET) and dual modal PET-MRI. Nanoporphyrins greatly increase the imaging sensitivity for tumour detection through background suppression in blood, as well as preferential accumulation and signal amplification in tumours. Nanoporphyrins also function as multiphase nanotransducers that can efficiently convert light to heat inside tumours for photothermal therapy (PTT), and light to singlet oxygen for photodynamic therapy (PDT). Furthermore, nanoporphyrins act as programmable releasing nanocarriers for targeted delivery of drugs or therapeutic radio-metals into tumours.
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Affiliation(s)
- Yuanpei Li
- Department of Biochemistry and Molecular Medicine, UC Davis Comprehensive Cancer Center, University of California Davis, Sacramento, CA 95817, USA
| | - Tzu-yin Lin
- Department of Internal Medicine, Division of Hematology/Oncology, University of California Davis, Sacramento, CA 95817, USA
| | - Yan Luo
- Department of Biochemistry and Molecular Medicine, UC Davis Comprehensive Cancer Center, University of California Davis, Sacramento, CA 95817, USA
- Department of Oncology, PLA Cancer Research Institute of the Second Affiliated Hospital, Third Military Medical University, Chongqing, 400037, China
| | - Qiangqiang Liu
- Department of Biochemistry and Molecular Medicine, UC Davis Comprehensive Cancer Center, University of California Davis, Sacramento, CA 95817, USA
- National Chengdu Center for Safety Evaluation of Drugs, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Wenwu Xiao
- Department of Biochemistry and Molecular Medicine, UC Davis Comprehensive Cancer Center, University of California Davis, Sacramento, CA 95817, USA
| | - Wenchang Guo
- Department of Biochemistry and Molecular Medicine, UC Davis Comprehensive Cancer Center, University of California Davis, Sacramento, CA 95817, USA
| | - Diana Lac
- Department of Biochemistry and Molecular Medicine, UC Davis Comprehensive Cancer Center, University of California Davis, Sacramento, CA 95817, USA
| | - Hongyong Zhang
- Department of Internal Medicine, Division of Hematology/Oncology, University of California Davis, Sacramento, CA 95817, USA
| | - Caihong Feng
- Department of Biochemistry and Molecular Medicine, UC Davis Comprehensive Cancer Center, University of California Davis, Sacramento, CA 95817, USA
- Beijing institute of technology, Beijing, 100081, China
| | - Sebastian Wachsmann-Hogiu
- NSF Center for Biophotonics Science and Technology, University of California Davis, Sacramento, CA 95817, USA
- Department of Pathology and Laboratory Medicine, University of California Davis, Sacramento, CA 95817, USA
| | - Jeffrey H. Walton
- Department of Biochemistry and Molecular Medicine, UC Davis Comprehensive Cancer Center, University of California Davis, Sacramento, CA 95817, USA
- UC Davis NMR Facility, Davis, CA 95616, USA
| | - Simon R. Cherry
- Department of Biomedical Engineering, Center for Molecular and Genomic Imaging, University of California Davis, Davis, CA 95616, USA
| | - Douglas J. Rowland
- Department of Biomedical Engineering, Center for Molecular and Genomic Imaging, University of California Davis, Davis, CA 95616, USA
| | - David Kukis
- Department of Biomedical Engineering, Center for Molecular and Genomic Imaging, University of California Davis, Davis, CA 95616, USA
| | - Chongxian Pan
- Department of Internal Medicine, Division of Hematology/Oncology, University of California Davis, Sacramento, CA 95817, USA
- VA Northern California Health Care System, Mather, CA
| | - Kit S. Lam
- Department of Biochemistry and Molecular Medicine, UC Davis Comprehensive Cancer Center, University of California Davis, Sacramento, CA 95817, USA
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Abstract
Two new strategies for increasing tumor uptake have been investigated. First the effect of interleukin-2 (IL-2) on tumor uptake of 125I-Lym-1 antibody in nude mice was investigated. Secondly, the use of 67Cu-labeled Lym-1 was evaluated in patients. In nude mice implanted with Raji human lymphoma, a greater than 2-fold enhancement of tumor uptake of 125I-Lym-1 was observed after administration of PEG-interleukin-2 (PEG-IL-2). The macrocycle 1,4,8,11-tetraazacylcotetradecane-N,N',N",N"'-tetraacetic acid (TETA), synthesized specifically for copper chelation, has been conjugated to Lym-1 for 67Cu labeling of the monoclonal antibody (MoAb). There was no evidence for bone or normal marrow uptake and the residence time in the tumor was prolonged. Surprisingly, a dose of 4.4 mCi that was intended for imaging induced substantial tumor regression in a patient.
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Affiliation(s)
- G DeNardo
- Department of Internal Medicine, University of California Davis Medical Center, Sacramento 95816
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