1
|
Cohen SE, Hashmi SM, Jones AAD, Lykourinou V, Ondrechen MJ, Sridhar S, van de Ven AL, Waters LS, Beuning PJ. Adapting Undergraduate Research to Remote Work to Increase Engagement. Biophysicist (Rockv) 2021; 2:28-32. [PMID: 36909739 PMCID: PMC10003819 DOI: 10.35459/tbp.2021.000199] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Demand for undergraduate research experiences typically outstrips the available laboratory positions, which could have been exacerbated during the remote work conditions imposed by the SARS-CoV-2/COVID-19 pandemic. This report presents a collection of examples of how undergraduates have been engaged in research under pandemic work restrictions. Examples include a range of projects related to fluid dynamics, cancer biology, nanomedicine, circadian clocks, metabolic disease, catalysis, and environmental remediation. Adaptations were made that included partnerships between remote and in-person research students and students taking on more data analysis and literature surveys, as well as data mining, computational, and informatics projects. In many cases, these projects engaged students who otherwise would have worked in traditional bench research, as some previously had. Several examples of beneficial experiences are reported, such as the additional time spent studying the literature, which gave students a heightened sense of project ownership, and more opportunities to integrate feedback into writing and research. Additionally, the more intentional and regular communication necessitated by remote work proved beneficial for all team members. Finally, online seminars and conferences have made participation possible for many more students, especially those at predominantly undergraduate institutions. Participants aim to adopt these beneficial practices in our research groups even after pandemic restrictions end.
Collapse
Affiliation(s)
- Susan E Cohen
- Department of Biological Sciences, California State University Los Angeles, Los Angeles, CA 90032, USA
| | - Sara M Hashmi
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA.,Department of Mechanical & Industrial Engineering, Northeastern University, Boston, MA 02115, USA
| | - A-Andrew D Jones
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA.,School of Public Policy and Urban Affairs, Northeastern University, Boston, MA 02115, USA
| | - Vasiliki Lykourinou
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115, USA
| | - Mary Jo Ondrechen
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115, USA.,Center for Interdisciplinary Research on Complex Systems, Northeastern University, Boston, MA 02115, USA
| | - Srinivas Sridhar
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA.,Department of Physics, Northeastern University, Boston, MA 02115, USA
| | - Anne L van de Ven
- Department of Physics, Northeastern University, Boston, MA 02115, USA
| | - Lauren S Waters
- Department of Chemistry, University of Wisconsin Oshkosh, Oshkosh, WI 54901, USA
| | - Penny J Beuning
- Department of Chemistry and Chemical Biology, Northeastern University, Boston, MA 02115, USA.,Center for Interdisciplinary Research on Complex Systems, Northeastern University, Boston, MA 02115, USA
| |
Collapse
|
2
|
Leaston J, Ferris CF, Kulkarni P, Chandramohan D, van de Ven AL, Qiao J, Timms L, Sepulcre J, El Fakhri G, Ma C, Normandin MD, Gharagouzloo C. Neurovascular imaging with QUTE-CE MRI in APOE4 rats reveals early vascular abnormalities. PLoS One 2021; 16:e0256749. [PMID: 34449808 PMCID: PMC8396782 DOI: 10.1371/journal.pone.0256749] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 05/21/2021] [Accepted: 08/13/2021] [Indexed: 11/19/2022] Open
Abstract
Cerebrovascular abnormality is linked to Alzheimer's disease and related dementias (ADRDs). ApoE-Ɛ4 (APOE4) is known to play a critical role in neurovascular dysfunction, however current medical imaging technologies are limited in quantification. This cross-sectional study tested the feasibility of a recently established imaging modality, quantitative ultra-short time-to-echo contrast-enhanced magnetic resonance imaging (QUTE-CE MRI), to identify small vessel abnormality early in development of human APOE4 knock-in female rat (TGRA8960) animal model. At 8 months, 48.3% of the brain volume was found to have significant signal increase (75/173 anatomically segmented regions; q<0.05 for multiple comparisons). Notably, vascular abnormality was detected in the tri-synaptic circuit, cerebellum, and amygdala, all of which are known to functionally decline throughout AD pathology and have implications in learning and memory. The detected abnormality quantified with QUTE-CE MRI is likely a result of hyper-vascularization, but may also be partly, or wholly, due to contributions from blood-brain-barrier leakage. Further exploration with histological validation is warranted to verify the pathological cause. Regardless, these results indicate that QUTE-CE MRI can detect neurovascular dysfunction with high sensitivity with APOE4 and may be helpful to provide new insights into health and disease.
Collapse
Affiliation(s)
- Joshua Leaston
- Imaginostics, Inc., Cambridge, Massachusetts, United States of America
| | - Craig F. Ferris
- Department of Psychology, Northeastern University, Boston, Massachusetts, United States of America
- Center for Translational Neuroimaging, Northeastern University, Boston, Massachusetts, United States of America
| | - Praveen Kulkarni
- Department of Psychology, Northeastern University, Boston, Massachusetts, United States of America
- Center for Translational Neuroimaging, Northeastern University, Boston, Massachusetts, United States of America
| | | | - Anne L. van de Ven
- Department of Physics, Northeastern University, Boston, Massachusetts, United States of America
- Nanomedicine Science and Technology Center, Northeastern University, Boston, Massachusetts, United States of America
| | - Ju Qiao
- Center for Translational Neuroimaging, Northeastern University, Boston, Massachusetts, United States of America
- Nanomedicine Science and Technology Center, Northeastern University, Boston, Massachusetts, United States of America
| | - Liam Timms
- Department of Physics, Northeastern University, Boston, Massachusetts, United States of America
- Nanomedicine Science and Technology Center, Northeastern University, Boston, Massachusetts, United States of America
| | - Jorge Sepulcre
- Gordon Center for Medical Imaging, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Georges El Fakhri
- Gordon Center for Medical Imaging, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Chao Ma
- Gordon Center for Medical Imaging, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Marc D. Normandin
- Gordon Center for Medical Imaging, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
| | - Codi Gharagouzloo
- Imaginostics, Inc., Cambridge, Massachusetts, United States of America
- Department of Psychology, Northeastern University, Boston, Massachusetts, United States of America
- Center for Translational Neuroimaging, Northeastern University, Boston, Massachusetts, United States of America
- Gordon Center for Medical Imaging, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, United States of America
| |
Collapse
|
3
|
Mitra R, Qiao J, Madhavan S, O’Neil GL, Ritchie B, Kulkarni P, Sridhar S, van de Ven AL, Kemmerling EMC, Ferris C, Hamilton JA, Ebong EE. The comparative effects of high fat diet or disturbed blood flow on glycocalyx integrity and vascular inflammation. Transl Med Commun 2018; 3:10. [PMID: 30957020 PMCID: PMC6447085 DOI: 10.1186/s41231-018-0029-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 11/09/2018] [Indexed: 06/01/2023]
Abstract
BACKGROUND AND AIMS Endothelial surface glycocalyx shedding plays a role in endothelial dysfunction and increases vessel wall permeability, which can lead to inflammation and atherogenesis. We sought to elucidate whether a high fat diet (HFD) or disturbed blood flow conditions, both of which are atherogenic risk factors, would contribute more detrimentally to pre-atherosclerotic loss of endothelial glycocalyx integrity and vascular inflammation. METHODS Six to seven week-old C57BL/6-background apolipoprotein-E-knockout (ApoE-KO) male mice were either fed a chow diet, fed a modified Western HFD, and/or subjected to a partial left carotid artery (LCA) ligation procedure to induce disturbed blood flow patterns in the LCA. Mice were sacrificed after 1 week of experimental conditions. Both LCA and right carotid artery (RCA) vessels were dissected and preserved to compare glycocalyx coverage and thickness as well as macrophage accumulation in carotid arterial walls amongst and between cohorts. RESULTS Glycocalyx coverage of the endothelium was significantly reduced in the LCAs of HFD fed mice when compared to the control. More significant reduction in glycocalyx coverage occurred in the LCAs of mice exposed to disturbed flow by partial LCA ligation when compared to the control. No differences were found in glycocalyx coverage of RCAs from all cohorts. Regarding inflammation, no difference in macrophage accumulation in carotid arterial walls was observed when comparing the LCAs and RCAs of control and HFD fed mice. However, macrophage infiltration in vessel walls showed a 20-fold increase in the LCAs exposed to disturbed flow following ligation, when compared to control LCAs, while no such statistical difference was observed between the RCAs of the group. CONCLUSIONS In our mouse model, endothelial glycocalyx integrity was compromised more by disturbed blood flow patterns than by exposure of the carotid vessel to HFD conditions. The pathophysiological implications include endothelial dysfunction, which correlates to macrophage infiltration in vessel walls and promotes atherogenesis.
Collapse
Affiliation(s)
- Ronodeep Mitra
- Department of Bioengineering, College of Engineering, Northeastern University, Boston, MA, USA
- Department of Chemical Engineering, College of Engineering, Northeastern University, 360 Huntington Avenue, 313 Snell Engineering Building, Boston, MA 02115, USA
| | - Ju Qiao
- Department of Mechanical and Industrial Engineering, College of Engineering, Northeastern University, Boston, MA, USA
| | - Sudharsan Madhavan
- Department of Mechanical Engineering, College of Engineering, Tufts University, Medford, MA, USA
| | - Gerard L. O’Neil
- Department of Biology, College of Science, Northeastern University, Boston, MA, USA
| | - Bailey Ritchie
- Department of Chemical Engineering, College of Engineering, Northeastern University, 360 Huntington Avenue, 313 Snell Engineering Building, Boston, MA 02115, USA
| | - Praveen Kulkarni
- Department of Psychology, College of Science, Northeastern University, Boston, MA, USA
| | - Srinivas Sridhar
- Department of Bioengineering, College of Engineering, Northeastern University, Boston, MA, USA
- Department of Chemical Engineering, College of Engineering, Northeastern University, 360 Huntington Avenue, 313 Snell Engineering Building, Boston, MA 02115, USA
- Department of Physics, College of Science, Northeastern University, Boston, MA, USA
| | - Anne L. van de Ven
- Department of Physics, College of Science, Northeastern University, Boston, MA, USA
| | | | - Craig Ferris
- Department of Psychology, College of Science, Northeastern University, Boston, MA, USA
| | - James A. Hamilton
- Department of Physiology and Biophysics, Boston University School of Medicine, Boston, MA, USA
| | - Eno E. Ebong
- Department of Bioengineering, College of Engineering, Northeastern University, Boston, MA, USA
- Department of Chemical Engineering, College of Engineering, Northeastern University, 360 Huntington Avenue, 313 Snell Engineering Building, Boston, MA 02115, USA
- Department of Biology, College of Science, Northeastern University, Boston, MA, USA
- Department of Neuroscience, Albert Einstein College of Medicine, New York, NY, USA
| |
Collapse
|
4
|
Gharagouzloo CA, Timms L, Qiao J, Fang Z, Nneji J, Pandya A, Kulkarni P, van de Ven AL, Ferris C, Sridhar S. Dataset on a 173 region awake resting state quantitative cerebral blood volume rat brain atlas and regional changes to cerebral blood volume under isoflurane anesthetization and CO 2 challenge. Data Brief 2018; 17:393-396. [PMID: 29876407 PMCID: PMC5988288 DOI: 10.1016/j.dib.2018.01.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 11/06/2017] [Accepted: 01/12/2018] [Indexed: 12/01/2022] Open
Abstract
The data in this article provide detail regarding the rat brain atlas measurements discussed in our research article, “Quantitative vascular neuroimaging of the rat brain using superparamagnetic nanoparticles: New insights on vascular organization and brain function” (Gharagouzloo et al., 2017) [1]. This article provides datasets of quantitative cerebral blood volume (qCBV) measurements across 173 regions of the rat brain in 11 healthy rats. State-changes from this baseline during isoflurane and CO2 administration are provided for all regions and all animals.
Collapse
Affiliation(s)
- Codi A Gharagouzloo
- Nanomedicine Science and Technology Center, Northeastern University, Boston, MA, United States.,Department of Bioengineering, Northeastern University, Boston, MA, United States.,Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States
| | - Liam Timms
- Nanomedicine Science and Technology Center, Northeastern University, Boston, MA, United States.,Department of Physics, Northeastern University, Boston, MA, United States
| | - Ju Qiao
- Nanomedicine Science and Technology Center, Northeastern University, Boston, MA, United States.,Department of Mechanical and Industrial Engineering, Northeastern University, Boston, MA, United States
| | - Zihang Fang
- Nanomedicine Science and Technology Center, Northeastern University, Boston, MA, United States
| | - Joseph Nneji
- Nanomedicine Science and Technology Center, Northeastern University, Boston, MA, United States
| | - Aniket Pandya
- Nanomedicine Science and Technology Center, Northeastern University, Boston, MA, United States
| | - Praveen Kulkarni
- Center for Translational NeuroImaging, Northeastern University, Boston, MA, United States.,Psychology Department, Northeastern University, Boston, MA, United States
| | - Anne L van de Ven
- Nanomedicine Science and Technology Center, Northeastern University, Boston, MA, United States.,Department of Physics, Northeastern University, Boston, MA, United States
| | - Craig Ferris
- Center for Translational NeuroImaging, Northeastern University, Boston, MA, United States.,Psychology Department, Northeastern University, Boston, MA, United States.,Department of Pharmaceutical Sciences, Northeastern University, Boston, MA, United States
| | - Srinivas Sridhar
- Nanomedicine Science and Technology Center, Northeastern University, Boston, MA, United States.,Department of Bioengineering, Northeastern University, Boston, MA, United States.,Department of Physics, Northeastern University, Boston, MA, United States
| |
Collapse
|
5
|
Gharagouzloo CA, Timms L, Qiao J, Fang Z, Nneji J, Pandya A, Kulkarni P, van de Ven AL, Ferris C, Sridhar S. Quantitative vascular neuroimaging of the rat brain using superparamagnetic nanoparticles: New insights on vascular organization and brain function. Neuroimage 2017; 163:24-33. [PMID: 28889004 PMCID: PMC5824692 DOI: 10.1016/j.neuroimage.2017.09.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 04/20/2017] [Revised: 08/30/2017] [Accepted: 09/01/2017] [Indexed: 02/08/2023] Open
Abstract
A method called Quantitative Ultra-Short Time-to-Echo Contrast Enhanced (QUTE-CE) Magnetic Resonance Imaging (MRI) which utilizes superparamagnetic iron oxide nanoparticles (SPIONs) as a contrast agent to yield positive contrast angiograms with high clarity and definition is applied to the whole live rat brain. QUTE-CE MRI intensity data are particularly well suited for measuring quantitative cerebral blood volume (qCBV). A global map of qCBV in the awake resting-state with unprecedented detail was created via application of a 3D MRI rat brain atlas with 173 segmented and annotated brain areas. From this map we identified two distributed, integrated neural circuits showing the highest capillary densities in the brain. One is the neural circuitry involved with the primary senses of smell, hearing and vision and the other is the neural circuitry of memory. Under isoflurane anesthesia, these same circuits showed significant decreases in qCBV suggesting a role in consciousness. Neural circuits in the brainstem associated with the reticular activating system and the maintenance of respiration, body temperature and cardiovascular function showed an increase in qCBV with anesthesia. During awake CO2 challenge, 84 regions showed significant increases relative to an awake baseline state. This CO2 response provides a measure of cerebral vascular reactivity and regional perfusion reserve with the highest response measured in the somatosensory cortex. These results demonstrate the utility of QUTE-CE MRI for qCBV analysis and offer a new perspective on brain function and vascular organization.
Collapse
Affiliation(s)
- Codi A. Gharagouzloo
- Nanomedicine Science and Technology Center, Northeastern University, Boston MA
- Department of Bioengineering, Northeastern University, Boston MA
- Gordon Center for Medical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Liam Timms
- Nanomedicine Science and Technology Center, Northeastern University, Boston MA
- Department of Physics, Northeastern University, Boston MA
| | - Ju Qiao
- Nanomedicine Science and Technology Center, Northeastern University, Boston MA
- Department of Mechanical and Industrial Engineering, Northeastern University, Boston MA
| | - Zihang Fang
- Nanomedicine Science and Technology Center, Northeastern University, Boston MA
| | - Joseph Nneji
- Nanomedicine Science and Technology Center, Northeastern University, Boston MA
| | - Aniket Pandya
- Nanomedicine Science and Technology Center, Northeastern University, Boston MA
| | - Praveen Kulkarni
- Center for Translational NeuroImaging, Northeastern University, Boston MA
- Psychology Department, Northeastern University, Boston MA
| | - Anne L. van de Ven
- Nanomedicine Science and Technology Center, Northeastern University, Boston MA
- Department of Physics, Northeastern University, Boston MA
| | - Craig Ferris
- Center for Translational NeuroImaging, Northeastern University, Boston MA
- Psychology Department, Northeastern University, Boston MA
- Department of Pharmaceutical Sciences, Northeastern University, Boston MA
| | - Srinivas Sridhar
- Nanomedicine Science and Technology Center, Northeastern University, Boston MA
- Department of Bioengineering, Northeastern University, Boston MA
- Department of Physics, Northeastern University, Boston MA
| |
Collapse
|
6
|
Belz JE, Kumar R, Baldwin P, Ojo NC, Leal AS, Royce DB, Zhang D, van de Ven AL, Liby KT, Sridhar S. Sustained Release Talazoparib Implants for Localized Treatment of BRCA1-deficient Breast Cancer. Am J Cancer Res 2017; 7:4340-4349. [PMID: 29158830 PMCID: PMC5695017 DOI: 10.7150/thno.18563] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 06/17/2017] [Indexed: 01/17/2023] Open
Abstract
Talazoparib, a potent PARP inhibitor, has shown promising clinical and pre-clinical activity by inducing synthetic lethality in cancers with germline Brca1/2 mutations. Conventional oral delivery of Talazoparib is associated with significant off-target effects, therefore we sought to develop new delivery systems in the form of an implant loaded with Talazoparib for localized, slow and sustained release of the drug at the tumor site in Brca1-deficient breast cancer. Poly(lactic-co-glycolic acid) (PLGA) implants (0.8 mm diameter) loaded with subclinical dose (25 or 50 µg) Talazoparib were fabricated and characterized. In vitro studies with Brca1-deficient W780 and W0069 breast cancer cells were conducted to test sensitivity to PARP inhibition. The in vivo therapeutic efficacy of Talazoparib implants was assessed following a one-time intratumoral injection in Brca1Co/Co;MMTV-Cre;p53+/- mice and compared to drug-free implants and oral gavage. Immunohistochemistry studies were performed on tumor sections using PCNA and γ-H2AX staining. Sustained release of Talazoparib was observed over 28 days in vitro. Mice treated with Talazoparib implants showed statistically significant tumor growth inhibition compared to those receiving drug-free implants or free Talazoparib orally. Talazoparib implants were well-tolerated at both drug doses and resulted in less weight loss than oral gavage. PARP inhibition in mice treated with Talazoparib implants significantly increased double-stranded DNA damage and decreased tumor cell proliferation as shown by PCNA and γ-H2AX staining as compared to controls. These results demonstrate that localized and sustained delivery of Talazoparib via implants has potential to provide superior treatment outcomes at sub-clinical doses with minimal toxicity in patients with BRCA1 deficient tumors.
Collapse
|
7
|
van de Ven AL, Tangutoori S, Baldwin P, Qiao J, Gharagouzloo C, Seitzer N, Clohessy JG, Makrigiorgos GM, Cormack R, Pandolfi PP, Sridhar S. Nanoformulation of Olaparib Amplifies PARP Inhibition and Sensitizes PTEN/TP53-Deficient Prostate Cancer to Radiation. Mol Cancer Ther 2017; 16:1279-1289. [PMID: 28500233 DOI: 10.1158/1535-7163.mct-16-0740] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 03/09/2017] [Accepted: 04/28/2017] [Indexed: 12/17/2022]
Abstract
The use of PARP inhibitors in combination with radiotherapy is a promising strategy to locally enhance DNA damage in tumors. Here we show that radiation-resistant cells and tumors derived from a Pten/Trp53-deficient mouse model of advanced prostate cancer are rendered radiation sensitive following treatment with NanoOlaparib, a lipid-based injectable nanoformulation of olaparib. This enhancement in radiosensitivity is accompanied by radiation dose-dependent changes in γ-H2AX expression and is specific to NanoOlaparib alone. In animals, twice-weekly intravenous administration of NanoOlaparib results in significant tumor growth inhibition, whereas previous studies of oral olaparib as monotherapy have shown no therapeutic efficacy. When NanoOlaparib is administered prior to radiation, a single dose of radiation is sufficient to triple the median mouse survival time compared to radiation only controls. Half of mice treated with NanoOlaparib + radiation achieved a complete response over the 13-week study duration. Using ferumoxytol as a surrogate nanoparticle, MRI studies revealed that NanoOlaparib enhances the intratumoral accumulation of systemically administered nanoparticles. NanoOlaparib-treated tumors showed up to 19-fold higher nanoparticle accumulation compared to untreated and radiation-only controls, suggesting that the in vivo efficacy of NanoOlaparib may be potentiated by its ability to enhance its own accumulation. Together, these data suggest that NanoOlaparib may be a promising new strategy for enhancing the radiosensitivity of radiation-resistant tumors lacking BRCA mutations, such as those with PTEN and TP53 deletions. Mol Cancer Ther; 16(7); 1279-89. ©2017 AACR.
Collapse
Affiliation(s)
- Anne L van de Ven
- Department of Physics, Northeastern University, Boston, Massachusetts.,Nanomedicine Science & Technology Center, Northeastern University, Boston, Massachusetts
| | - Shifalika Tangutoori
- Nanomedicine Science & Technology Center, Northeastern University, Boston, Massachusetts.,Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Paige Baldwin
- Nanomedicine Science & Technology Center, Northeastern University, Boston, Massachusetts.,Department of Bioengineering, Northeastern University, Boston, Massachusetts
| | - Ju Qiao
- Department of Mechanical and Industrial Engineering, Northeastern University, Boston, Massachusetts
| | - Codi Gharagouzloo
- Department of Bioengineering, Northeastern University, Boston, Massachusetts
| | - Nina Seitzer
- Cancer Research Institute, Beth Israel Deaconess Cancer Center, Boston, Massachusetts
| | - John G Clohessy
- Cancer Research Institute, Beth Israel Deaconess Cancer Center, Boston, Massachusetts
| | - G Mike Makrigiorgos
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Robert Cormack
- Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Pier Paolo Pandolfi
- Cancer Research Institute, Beth Israel Deaconess Cancer Center, Boston, Massachusetts
| | - Srinivas Sridhar
- Department of Physics, Northeastern University, Boston, Massachusetts. .,Nanomedicine Science & Technology Center, Northeastern University, Boston, Massachusetts.,Department of Radiation Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| |
Collapse
|
8
|
Ven ALVD, Tangutoori S, Baldwin P, Qiao J, Gharagouzloo C, Seitzer N, Clohessy J, Korideck H, Makrigiorgos GM, Cormack R, Pandolfi PP, Sridhar S. Abstract B48: Prostate cancer pre-treatment with nanoformulated Olaparib overcomes radiation resistance. Cancer Res 2017. [DOI: 10.1158/1538-7445.epso16-b48] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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
Prostate cancers with PTEN deletions are promising candidates for DNA repair inhibitors such as olaparib and talazoparib. Here we show that radiation-resistant cells and tumors derived from Ptenpc-/-;Trp53pc-/- mice are rendered radiation-sensitive following pre-treatment with liposomal nanoOlaparib. This enhancement in radiosensitivity is accompanied by radiation dose-dependent changes in γ-H2AX expression and is specific to nanoformulated Olaparib alone. In animals, twice-weekly intravenous administration of nanoOlaparib alone results in significant tumor growth inhibition. When nanoOlaparib is administered prior to radiation, we find that a single dose of radiation is sufficient to increase mouse survival time by as much as 10 weeks (study duration = 13 weeks). Using ferumoxytol as a surrogate nanoparticle, magnetic resonance imaging (MRI) studies revealed that nanoOlaparib administration enhances the ability of nanoparticles to accumulate in tumors. Compared to untreated and radiation-only controls, nanoOlaparib-treated tumors showed 18-fold higher nanoparticle accumulation, suggesting that the in vivo efficacy of nanoOlaparib may be potentiated by its ability to enhance its own accumulation in tumors.
Citation Format: Anne L. van de Ven, Shifalika Tangutoori, Paige Baldwin, Ju Qiao, Codi Gharagouzloo, Nina Seitzer, John Clohessy, Houari Korideck, G. Mike Makrigiorgos, Robert Cormack, Pier Paolo Pandolfi, Srinivas Sridhar. Prostate cancer pre-treatment with nanoformulated Olaparib overcomes radiation resistance. [abstract]. In: Proceedings of the AACR Special Conference on Engineering and Physical Sciences in Oncology; 2016 Jun 25-28; Boston, MA. Philadelphia (PA): AACR; Cancer Res 2017;77(2 Suppl):Abstract nr B48.
Collapse
Affiliation(s)
| | | | | | - Ju Qiao
- 1Northeastern University, Boston, MA,
| | | | | | | | | | | | | | | | | |
Collapse
|
9
|
Abstract
Metallic nanoparticles with a high atomic number release Auger electrons in response to external beam X-ray radiation. When these nanoparticles are selectively delivered to tumors, they have the potential to locally enhance the effects of radiation therapy. Optimizing the therapeutic efficacy of these nanoparticles, however, remains a challenging and time-consuming task. Here we describe three different assays that can be used to experimentally quantify and optimize the in vitro therapeutic efficacy of nanoparticle-mediated X-ray radiation enhancement. These include an IC50 extended dose response curve, clonogenic cell survival assay, and immunoblotting. Collectively, these assays provide information about whether a given nanoparticle provides radiosensitization, the extent of the radiosensitization, and the potential mechanism of radiosensitization.
Collapse
Affiliation(s)
- Autumn D Paro
- Department of Chemical Engineering, Northeastern University, Boston, MA, USA
- Nanomedicine Science & Technology Center, Northeastern University, Boston, MA, USA
| | - Ilanchezhian Shanmugam
- Nanomedicine Science & Technology Center, Northeastern University, Boston, MA, USA
- Department of Physics, Northeastern University, 360 Huntington Ave, Boston, MA, 02115, USA
| | - Anne L van de Ven
- Nanomedicine Science & Technology Center, Northeastern University, Boston, MA, USA.
- Department of Physics, Northeastern University, 360 Huntington Ave, Boston, MA, 02115, USA.
| |
Collapse
|
10
|
Geilich BM, Gelfat I, Sridhar S, van de Ven AL, Webster TJ. Superparamagnetic iron oxide-encapsulating polymersome nanocarriers for biofilm eradication. Biomaterials 2016; 119:78-85. [PMID: 28011336 DOI: 10.1016/j.biomaterials.2016.12.011] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [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: 08/13/2016] [Revised: 12/07/2016] [Accepted: 12/09/2016] [Indexed: 11/29/2022]
Abstract
The rising prevalence and severity of antibiotic-resistant biofilm infections poses an alarming threat to public health worldwide. Here, biocompatible multi-compartment nanocarriers were synthesized to contain both hydrophobic superparamagnetic iron oxide nanoparticles (SPIONs) and the hydrophilic antibiotic methicillin for the treatment of medical device-associated infections. SPION co-encapsulation was found to confer unique properties, enhancing both nanocarrier relaxivity and magneticity compared to individual SPIONs. These iron oxide-encapsulating polymersomes (IOPs) penetrated 20 μm thick Staphylococcus epidermidis biofilms with high efficiency following the application of an external magnetic field. Three-dimensional laser scanning confocal microscopy revealed differential bacteria death as a function of drug and SPION loading. Complete eradication of all bacteria throughout the biofilm thickness was achieved using an optimized IOP formulation containing 40 μg/mL SPION and 20 μg/mL of methicillin. Importantly, this formulation was selectively toxic towards methicillin-resistant biofilm cells but not towards mammalian cells. These novel iron oxide-encapsulating polymersomes demonstrate that it is possible to overcome antibiotic-resistant biofilms by controlling the positioning of nanocarriers containing two or more therapeutics.
Collapse
Affiliation(s)
- Benjamin M Geilich
- Department of Bioengineering, Northeastern University, Boston, MA 02115, USA; Nanomedicine Science and Technology Center, Northeastern University, Boston, MA 02115, USA
| | - Ilia Gelfat
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA
| | - Srinivas Sridhar
- Nanomedicine Science and Technology Center, Northeastern University, Boston, MA 02115, USA; Department of Physics, Northeastern University, Boston, MA 02115, USA
| | - Anne L van de Ven
- Nanomedicine Science and Technology Center, Northeastern University, Boston, MA 02115, USA; Department of Physics, Northeastern University, Boston, MA 02115, USA
| | - Thomas J Webster
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA; Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, Saudi Arabia.
| |
Collapse
|
11
|
Evangelopoulos M, Parodi A, Martinez JO, Yazdi IK, Cevenini A, van de Ven AL, Quattrocchi N, Boada C, Taghipour N, Corbo C, Brown BS, Scaria S, Liu X, Ferrari M, Tasciotti E. Cell source determines the immunological impact of biomimetic nanoparticles. Biomaterials 2015; 82:168-77. [PMID: 26761780 DOI: 10.1016/j.biomaterials.2015.11.054] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [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: 10/12/2015] [Revised: 11/17/2015] [Accepted: 11/28/2015] [Indexed: 12/24/2022]
Abstract
Recently, engineering the surface of nanotherapeutics with biologics to provide them with superior biocompatibility and targeting towards pathological tissues has gained significant popularity. Although the functionalization of drug delivery vectors with cellular materials has been shown to provide synthetic particles with unique biological properties, these approaches may have undesirable immunological repercussions upon systemic administration. Herein, we comparatively analyzed unmodified multistage nanovectors and particles functionalized with murine and human leukocyte cellular membrane, dubbed Leukolike Vectors (LLV), and the immunological effects that may arise in vitro and in vivo. Previously, LLV demonstrated an avoidance of opsonization and phagocytosis, in addition to superior targeting of inflammation and prolonged circulation. In this work, we performed a comprehensive evaluation of the importance of the source of cellular membrane in increasing their systemic tolerance and minimizing an inflammatory response. Time-lapse microscopy revealed LLV developed using a cellular coating derived from a murine (i.e., syngeneic) source resulted in an active avoidance of uptake by macrophage cells. Additionally, LLV composed of a murine membrane were found to have decreased uptake in the liver with no significant effect on hepatic function. As biomimicry continues to develop, this work demonstrates the necessity to consider the source of biological material in the development of future drug delivery carriers.
Collapse
Affiliation(s)
- Michael Evangelopoulos
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Alessandro Parodi
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA; Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale Tumori, Milan 20133, Italy
| | - Jonathan O Martinez
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Iman K Yazdi
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Armando Cevenini
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA; Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Via Pansini 5, 80131 Naples, Italy; CEINGE-Biotecnologie Avanzate s.c.a.r.l., Via Gaetano Salvatore 486, 80145 Naples, Italy
| | - Anne L van de Ven
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Nicoletta Quattrocchi
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Christian Boada
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA; Escuela de Medicina y Ciencias de la Salud, Tecnologico de Monterrey, Monterrey, Nuevo Leon, Mexico
| | - Nima Taghipour
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Claudia Corbo
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Brandon S Brown
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Shilpa Scaria
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Xuewu Liu
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Mauro Ferrari
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Ennio Tasciotti
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, TX 77030, USA.
| |
Collapse
|
12
|
Belz J, Liby K, Baldwin P, Kumar R, van de Ven AL, Cormack R, Makrigiorgos M, Sridhar S. Abstract B42: Sustained release of PARP inhibitor Talazoparib from bioedgradable implant for treatment of BRCA1-mutated breast cancer. Mol Cancer Ther 2015. [DOI: 10.1158/1535-7163.targ-15-b42] [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
The breast cancer-associated gene 1 (Brca1) is the most frequently mutated tumor suppressor gene found in familial breast cancers. Mutations of the gene modulate many cellular functions including DNA damage and repair, homologous recombination, cell-cycle regulation, and apoptosis. Poly-ADP-Ribose Polymerase (PARP) inhibitor therapy can produce cell death in cancers with genetic predispositions for impaired DNA repair or transcription pathways such as Brca1 mutants. Here we report a novel biodegradable implant for the local delivery of PARP inhibitor Talazoparib to treat Brca1-mutated cancers. This one-time intratumoral injection provides a safe vehicle for the sustained release of PARP inhibitor Talazoparib in contrast to low bioavailability and toxicity associated with oral delivery.
Methods: Biodegradable implants of 1-2mm length and 0.8mm diameter were loaded with ∼50μg Talazoparib. The implants were characterized in vitro using SEM and HPLC, and the release kinetic studies were carried out in PBS buffer (pH 6.0) at 37°C. The IC50 was determined using an MTS assay in breast cancer cell lines derived from Brca1 Co/Co; MMTV-Cre; p53+/−mice. In vivo studies were carried out in Brca1 Co/Co; MMTV-Cre; p53+/− mice. Drug-loaded implants were injected once intratumorally using an 18G brachytherapy needle.
Results: In vitro studies
The release profile of the drug from the implant in buffer showed a highly sustained release for multiple weeks at therapeutically relevant doses. Breast cancer cell lines W0069 and W780, derived from Brca1 Co/Co; MMTV-Cre; p53+/− mice were highly sensitive to Talazoparib, most likely due to Brca1 mutation. PARP expression was examined via western blot analysis.
In vivo studies
In vivo studies using sustained drug release implants loaded with Talazoparib were also carried out in Brca1Co/Co;MMTV-Cre;p53+/- genetically engineered mice with 1 or more spontaneous breast tumors. Following a one-time implantation, tumors reduced in size by an average of 50%, while untreated tumors increased ∼5X in size. Talazoparib dosing appeared to be well tolerated by the mice. Histology samples were taken from sacrificed mice and immunohistochemistry are currently underway.
Conclusions: Sustained local release of therapeutically relevant doses of Talazoparib was observed in vitro and in vivo. The Talazoparib-loaded implants represent a novel delivery route that was well-tolerated. Sustained release of Talazoparib appears to amplify the therapeutic efficacy of PARP inhibition and is a promising new route for the treatment of highly aggressive breast cancer models.
We would like to acknowledge the Breast Cancer Research Foundation. This work was supported by the Army- W81XWH-14-1-0092 and Northeastern University – Dana Farber Cancer Institute collaborative grant.
Citation Format: Jodi Belz, Karen Liby, Paige Baldwin, Rajiv Kumar, Anne L. van de Ven, Robert Cormack, Mike Makrigiorgos, Srinivas Sridhar. Sustained release of PARP inhibitor Talazoparib from bioedgradable implant for treatment of BRCA1-mutated breast cancer. [abstract]. In: Proceedings of the AACR-NCI-EORTC International Conference: Molecular Targets and Cancer Therapeutics; 2015 Nov 5-9; Boston, MA. Philadelphia (PA): AACR; Mol Cancer Ther 2015;14(12 Suppl 2):Abstract nr B42.
Collapse
Affiliation(s)
- Jodi Belz
- 1NORTHEASTERN UNIVERSITY, BOSTON, MA
| | | | | | | | | | | | | | | |
Collapse
|
13
|
Geilich BM, van de Ven AL, Singleton GL, Sepúlveda LJ, Sridhar S, Webster TJ. Silver nanoparticle-embedded polymersome nanocarriers for the treatment of antibiotic-resistant infections. Nanoscale 2015; 7:3511-9. [PMID: 25628231 DOI: 10.1039/c4nr05823b] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
The rapidly diminishing number of effective antibiotics that can be used to treat infectious diseases and associated complications in a physician's arsenal is having a drastic impact on human health today. This study explored the development and optimization of a polymersome nanocarrier formed from a biodegradable diblock copolymer to overcome bacterial antibiotic resistance. Here, polymersomes were synthesized containing silver nanoparticles embedded in the hydrophobic compartment, and ampicillin in the hydrophilic compartment. Results showed for the first time that these silver nanoparticle-embedded polymersomes (AgPs) inhibited the growth of Escherichia coli transformed with a gene for ampicillin resistance (bla) in a dose-dependent fashion. Free ampicillin, AgPs without ampicillin, and ampicillin polymersomes without silver nanoparticles had no effect on bacterial growth. The relationship between the silver nanoparticles and ampicillin was determined to be synergistic and produced complete growth inhibition at a silver-to-ampicillin ratio of 1 : 0.64. In this manner, this study introduces a novel nanomaterial that can effectively treat problematic, antibiotic-resistant infections in an improved capacity which should be further examined for a wide range of medical applications.
Collapse
Affiliation(s)
- Benjamin M Geilich
- Department of Bioengineering, Northeastern University, Boston, MA 02115, USA
| | | | | | | | | | | |
Collapse
|
14
|
Abstract
The Nanomedicine program at Northeastern University provides a unique interdisciplinary graduate education that combines experiential research, didactic learning, networking, and outreach. Students are taught how to apply nanoscience and nanotechnology to problems in medicine, translate basic research to the development of marketable products, negotiate ethical and social issues related to nanomedicine, and develop a strong sense of community involvement within a global perspective. Since 2006, the program has recruited 50 doctoral students from ten traditional science, technology, and engineering disciplines to participate in the 2-year specialization program. Each trainee received mentoring from two or more individuals, including faculty members outside the student’s home department and faculty members at other academic institutions, and/or clinicians. Both students and faculty members reported a significant increase in interdisciplinary scholarly activities, including publications, presentations, and funded research proposals, as a direct result of the program. Nearly 90% of students graduating with a specialization in nanomedicine have continued on to careers in the health care sector. Currently, 43% of graduates are performing research or developing products that directly involve nanomedicine. This article identifies some key elements of the Nanomedicine program, describes how they were implemented, and reports on the metrics of success.
Collapse
Affiliation(s)
- Anne L van de Ven
- Nanomedicine Science and Technology Center, Northeastern University, Boston, MA, USA ; Department of Physics, Northeastern University, Boston, MA, USA
| | - Mary H Shann
- School of Education, Boston University, Boston, MA, USA
| | - Srinivas Sridhar
- Nanomedicine Science and Technology Center, Northeastern University, Boston, MA, USA ; Department of Physics, Northeastern University, Boston, MA, USA
| |
Collapse
|
15
|
Kirui DK, Mai J, Palange AL, Qin G, van de Ven AL, Liu X, Shen H, Ferrari M. Transient mild hyperthermia induces E-selectin mediated localization of mesoporous silicon vectors in solid tumors. PLoS One 2014; 9:e86489. [PMID: 24558362 PMCID: PMC3928046 DOI: 10.1371/journal.pone.0086489] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [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: 10/08/2013] [Accepted: 12/09/2013] [Indexed: 01/03/2023] Open
Abstract
Background Hyperthermia treatment has been explored as a strategy to overcome biological barriers that hinder effective drug delivery in solid tumors. Most studies have used mild hyperthermia treatment (MHT) to target the delivery of thermo-sensitive liposomes carriers. Others have studied its application to permeabilize tumor vessels and improve tumor interstitial transport. However, the role of MHT in altering tumor vessel interfacial and adhesion properties and its relationship to improved delivery has not been established. In the present study, we evaluated effects of MHT treatment on tumor vessel flow dynamics and expression of adhesion molecules and assessed enhancement in particle localization using mesoporous silicon vectors (MSVs). We also determined the optimal time window at which maximal accumulation occur. Results In this study, using intravital microscopy analyses, we showed that temporal mild hyperthermia (∼1 W/cm2) amplified delivery and accumulation of MSVs in orthotopic breast cancer tumors. The number of discoidal MSVs (1000×400 nm) adhering to tumor vasculature increased 6-fold for SUM159 tumors and 3-fold for MCF-7 breast cancer tumors. By flow chamber experiments and Western blotting, we established that a temporal increase in E-selectin expression correlated with enhanced particle accumulation. Furthermore, MHT treatment was shown to increase tumor perfusion in a time-dependent fashion. Conclusions Our findings reveal that well-timed mild hyperthermia treatment can transiently elevate tumor transport and alter vascular adhesion properties and thereby provides a means to enhance tumor localization of non-thermally sensitive particles such as MSVs. Such enhancement in accumulation could be leveraged to increase therapeutic efficacy and reduce drug dosing in cancer therapy.
Collapse
Affiliation(s)
- Dickson K. Kirui
- Department of NanoMedicine, Houston Methodist Research Institute, Houston, Texas, United States of America
| | - Juahua Mai
- Department of NanoMedicine, Houston Methodist Research Institute, Houston, Texas, United States of America
| | - Anna-Lisa Palange
- Department of NanoMedicine, Houston Methodist Research Institute, Houston, Texas, United States of America
| | - Guoting Qin
- Department of NanoMedicine, Houston Methodist Research Institute, Houston, Texas, United States of America
| | - Anne L. van de Ven
- Department of NanoMedicine, Houston Methodist Research Institute, Houston, Texas, United States of America
| | - Xuewu Liu
- Department of NanoMedicine, Houston Methodist Research Institute, Houston, Texas, United States of America
| | - Haifa Shen
- Department of NanoMedicine, Houston Methodist Research Institute, Houston, Texas, United States of America
- Department of Cell and Development Biology, Weill Cornell Medical College, New York, New York, United States of America
| | - Mauro Ferrari
- Department of NanoMedicine, Houston Methodist Research Institute, Houston, Texas, United States of America
- Department of Internal Medicine, Weill Cornell Medical College, New York, New York, United States of America
- * E-mail:
| |
Collapse
|
16
|
Celia C, Ferrati S, Bansal S, van de Ven AL, Ruozi B, Zabre E, Hosali S, Paolino D, Sarpietro MG, Fine D, Fresta M, Ferrari M, Grattoni A. Drug Delivery: Sustained Zero-Order Release of Intact Ultra-Stable Drug-Loaded Liposomes from an Implantable Nanochannel Delivery System (Adv. Healthcare Mater. 2/2014). Adv Healthc Mater 2014. [DOI: 10.1002/adhm.201470007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
17
|
Celia C, Ferrati S, Bansal S, van de Ven AL, Ruozi B, Zabre E, Hosali S, Paolino D, Sarpietro MG, Fine D, Fresta M, Ferrari M, Grattoni A. Sustained zero-order release of intact ultra-stable drug-loaded liposomes from an implantable nanochannel delivery system. Adv Healthc Mater 2014; 3:230-8. [PMID: 23881575 PMCID: PMC3970317 DOI: 10.1002/adhm.201300188] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [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: 05/15/2013] [Indexed: 11/10/2022]
Abstract
Metronomic chemotherapy supports the idea that long-term, sustained, constant administration of chemotherapeutics, currently not achievable, could be effective against numerous cancers. Particularly appealing are liposomal formulations, used to solubilize hydrophobic therapeutics and minimize side effects, while extending drug circulation time and enabling passive targeting. As liposome alone cannot survive in circulation beyond 48 h, sustaining their constant plasma level for many days is a challenge. To address this, we develop, as a proof of concept, an implantable nanochannel delivery system and ultra-stable PEGylated lapatinib-loaded liposomes, and we demonstrate the release of intact vesicles for over 18 d. Further, we investigate intravasation kinetics of subcutaneously delivered liposomes and verify their biological activity post nanochannel release on BT474 breast cancer cells. The key innovation of this work is the combination of two nanotechnologies to exploit the synergistic effect of liposomes, demonstrated as passive-targeting vectors and nanofluidics to maintain therapeutic constant plasma levels. In principle, this approach could maximize efficacy of metronomic treatments.
Collapse
Affiliation(s)
- Christian Celia
- Department of Nanomedicine, The Methodist Hospital Research Institute, 6670 Bertner Ave. Houston, TX 77030 (USA)
| | - Silvia Ferrati
- Department of Nanomedicine, The Methodist Hospital Research Institute, 6670 Bertner Ave. Houston, TX 77030 (USA)
| | - Shyam Bansal
- Department of Nanomedicine, The Methodist Hospital Research Institute, 6670 Bertner Ave. Houston, TX 77030 (USA)
| | - Anne L. van de Ven
- Department of Nanomedicine, The Methodist Hospital Research Institute, 6670 Bertner Ave. Houston, TX 77030 (USA)
| | - Barbara Ruozi
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 183, Modena, 41100 (Italy)
| | - Erika Zabre
- Department of Nanomedicine, The Methodist Hospital Research Institute, 6670 Bertner Ave. Houston, TX 77030 (USA)
| | - Sharath Hosali
- NanoMedical Systems, Inc., 2706 Montopolis Drive Austin, TX 78741, (USA)
| | - Donatella Paolino
- Department of Health Sciences, University “Magna Graecia” of Catanzaro, V.le “S. Venuta” Germaneto – Catanzaro, 88100 (Italy)
| | - Maria Grazia Sarpietro
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, Catania, 95125 (Italy)
| | - Daniel Fine
- Department of Nanomedicine, The Methodist Hospital Research Institute, 6670 Bertner Ave. Houston, TX 77030 (USA)
| | - Massimo Fresta
- Department of Health Sciences, University “Magna Graecia” of Catanzaro, V.le “S. Venuta” Germaneto – Catanzaro, 88100 (Italy)
| | - Mauro Ferrari
- Department of Nanomedicine, The Methodist Hospital Research Institute, 6670 Bertner Ave. Houston, TX 77030 (USA); Department of Medicine, Weill Cornell Medical College, 1300 York Avenue, New York, NY 1006, (USA), Department of Bioengineering, Rice University, 6100 Main Street Houston, TX 77251, (USA), Alliance for NanoHealth, 6670 Bertner Ave., Houston, TX 77030, (USA)
| | | |
Collapse
|
18
|
Tang L, van de Ven AL, Guo D, Andasari V, Cristini V, Li KC, Zhou X. Computational modeling of 3D tumor growth and angiogenesis for chemotherapy evaluation. PLoS One 2014; 9:e83962. [PMID: 24404145 PMCID: PMC3880288 DOI: 10.1371/journal.pone.0083962] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [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: 04/25/2013] [Accepted: 11/11/2013] [Indexed: 11/19/2022] Open
Abstract
Solid tumors develop abnormally at spatial and temporal scales, giving rise to biophysical barriers that impact anti-tumor chemotherapy. This may increase the expenditure and time for conventional drug pharmacokinetic and pharmacodynamic studies. In order to facilitate drug discovery, we propose a mathematical model that couples three-dimensional tumor growth and angiogenesis to simulate tumor progression for chemotherapy evaluation. This application-oriented model incorporates complex dynamical processes including cell- and vascular-mediated interstitial pressure, mass transport, angiogenesis, cell proliferation, and vessel maturation to model tumor progression through multiple stages including tumor initiation, avascular growth, and transition from avascular to vascular growth. Compared to pure mechanistic models, the proposed empirical methods are not only easy to conduct but can provide realistic predictions and calculations. A series of computational simulations were conducted to demonstrate the advantages of the proposed comprehensive model. The computational simulation results suggest that solid tumor geometry is related to the interstitial pressure, such that tumors with high interstitial pressure are more likely to develop dendritic structures than those with low interstitial pressure.
Collapse
Affiliation(s)
- Lei Tang
- Department of Translational Imaging, The Methodist Hospital Research Institute, Houston, Texas, United States of America
| | - Anne L. van de Ven
- Department of Physics, Northeastern University, Boston, Massachusetts, United States of America
| | - Dongmin Guo
- Department of Radiology, Wake Forest School of Medicine, Winston-Salem, North Carolina, United States of America
| | - Vivi Andasari
- Department of Radiology, Wake Forest School of Medicine, Winston-Salem, North Carolina, United States of America
| | - Vittorio Cristini
- Department of Pathology, Cancer Research and Treatment Center, Department of Chemical and Nuclear Engineering, and Center for Biomedical Engineering, The University of New Mexico, Albuquerque, New Mexico, United States of America
| | - King C. Li
- Department of Radiology, Wake Forest School of Medicine, Winston-Salem, North Carolina, United States of America
| | - Xiaobo Zhou
- Department of Radiology, Wake Forest School of Medicine, Winston-Salem, North Carolina, United States of America
- * E-mail:
| |
Collapse
|
19
|
Yokoi K, Tanei T, Godin B, van de Ven AL, Hanibuchi M, Matsunoki A, Alexander J, Ferrari M. Serum biomarkers for personalization of nanotherapeutics-based therapy in different tumor and organ microenvironments. Cancer Lett 2013; 345:48-55. [PMID: 24370567 DOI: 10.1016/j.canlet.2013.11.015] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [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: 09/09/2013] [Revised: 11/14/2013] [Accepted: 11/20/2013] [Indexed: 12/11/2022]
Abstract
Enhanced permeation and retention (EPR) effect, the mechanism by which nanotherapeutics accumulate in tumors, varies in patients based on differences in the tumor and organ microenvironment. Surrogate biomarkers for the EPR effect will aid in selecting patients who will accumulate higher amounts of nanotherapeutics and show better therapeutic efficacy. Our data suggest that the differences in the vascular permeability and pegylated liposomal doxorubicin (PLD) accumulation are tumor type as well as organ-specific and significantly correlated with the relative ratio of MMP-9 to TIMP-1 in the circulation, supporting development of these molecules as biomarkers for the personalization of nanoparticle-based therapy.
Collapse
MESH Headings
- Animals
- Antibiotics, Antineoplastic/administration & dosage
- Antibiotics, Antineoplastic/pharmacokinetics
- Biomarkers, Tumor/blood
- Brain Neoplasms/blood
- Brain Neoplasms/drug therapy
- Brain Neoplasms/metabolism
- Brain Neoplasms/secondary
- Capillary Permeability
- Doxorubicin/administration & dosage
- Doxorubicin/analogs & derivatives
- Doxorubicin/pharmacokinetics
- Drug Delivery Systems
- Female
- Liver Neoplasms, Experimental/blood
- Liver Neoplasms, Experimental/drug therapy
- Liver Neoplasms, Experimental/metabolism
- Matrix Metalloproteinase 9/blood
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Nude
- Nanoparticles/administration & dosage
- Nanoparticles/metabolism
- Neoplasms, Experimental/blood
- Neoplasms, Experimental/drug therapy
- Neoplasms, Experimental/metabolism
- Neoplasms, Experimental/pathology
- Polyethylene Glycols/administration & dosage
- Polyethylene Glycols/pharmacokinetics
- Tissue Inhibitor of Metalloproteinase-1/blood
- Tumor Microenvironment
- Xenograft Model Antitumor Assays
Collapse
Affiliation(s)
- Kenji Yokoi
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Street, Houston, TX 77030, USA; Department of Cancer Biology, Cancer Metastasis Research Center, The University of Texas M. D. Anderson Cancer Center, Houston, TX 77030, USA.
| | - Tomonori Tanei
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Street, Houston, TX 77030, USA
| | - Biana Godin
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Street, Houston, TX 77030, USA
| | - Anne L van de Ven
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Street, Houston, TX 77030, USA
| | - Masaki Hanibuchi
- Department of Cancer Biology, Cancer Metastasis Research Center, The University of Texas M. D. Anderson Cancer Center, Houston, TX 77030, USA
| | - Aika Matsunoki
- Department of Cancer Biology, Cancer Metastasis Research Center, The University of Texas M. D. Anderson Cancer Center, Houston, TX 77030, USA
| | - Jenolyn Alexander
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Street, Houston, TX 77030, USA
| | - Mauro Ferrari
- Department of Nanomedicine, Houston Methodist Research Institute, 6670 Bertner Street, Houston, TX 77030, USA.
| |
Collapse
|
20
|
Abstract
The investigation of microcirculation is an important task in biomedical and physiological research because the microcirculation information, such as flow velocity and vessel density, is critical to monitor human conditions and develop effective therapies of some diseases. As one of the tasks of the microcirculation study, red blood cell (RBC) tracking presents an effective approach to estimate some parameters in microcirculation. The common method for RBC tracking is based on spatiotemporal image analysis, which requires the image to have high qualification and cells should have fixed velocity. Besides, for in vivo cell tracking, cells may disappear in some frames, image series may have spatial and temporal distortions, and vessel distribution can be complex, which increase the difficulties of RBC tracking. In this paper, we propose an optical flow method to track RBCs. It attempts to describe the local motion for each visible point in the frames using a local displacement vector field. We utilize it to calculate the displacement of a cell in two adjacent frames. Additionally, another optical flow-based method, scale invariant feature transform (SIFT) flow, is also presented. The experimental results show that optical flow is quite robust to the case where the velocity of cell is unstable, while SIFT flow works well when there is a large displacement of the cell between two adjacent frames. Our proposed methods outperform other methods when doing in vivo cell tracking, which can be used to estimate the blood flow directly and help to evaluate other parameters in microcirculation.
Collapse
|
21
|
van de Ven AL, Abdollahi B, Martinez CJ, Burey LA, Landis MD, Chang JC, Ferrari M, Frieboes HB. Modeling of nanotherapeutics delivery based on tumor perfusion. New J Phys 2013; 15:55004. [PMID: 24039540 PMCID: PMC3770306 DOI: 10.1088/1367-2630/15/5/055004] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Heterogeneities in the perfusion of solid tumors prevent optimal delivery of nanotherapeutics. Clinical imaging protocols to obtain patient-specific data have proven difficult to implement. It is challenging to determine which perfusion features hold greater prognostic value and to relate measurements to vessel structure and function. With the advent of systemically administered nanotherapeutics, whose delivery is dependent on overcoming diffusive and convective barriers to transport, such knowledge is increasingly important. We describe a framework for the automated evaluation of vascular perfusion curves measured at the single vessel level. Primary tumor fragments, collected from triple-negative breast cancer patients and grown as xenografts in mice, were injected with fluorescence contrast and monitored using intravital microscopy. The time to arterial peak and venous delay, two features whose probability distributions were measured directly from time-series curves, were analyzed using a Fuzzy C-mean (FCM) supervised classifier in order to rank individual tumors according to their perfusion characteristics. The resulting rankings correlated inversely with experimental nanoparticle accumulation measurements, enabling modeling of nanotherapeutics delivery without requiring any underlying assumptions about tissue structure or function, or heterogeneities contained within. With additional calibration, these methodologies may enable the study of nanotherapeutics delivery strategies in a variety of tumor models.
Collapse
Affiliation(s)
- Anne L. van de Ven
- Department of Nanomedicine, The Methodist Hospital Research Institute, 6670 Bertner Avenue, Houston, TX 77030
| | - Behnaz Abdollahi
- Department of Electrical and Computer Engineering, University of Louisville, Louisville, KY
| | - Carlos J. Martinez
- Department of Nanomedicine, The Methodist Hospital Research Institute, 6670 Bertner Avenue, Houston, TX 77030
- Department of Biology, Southwestern University, Georgetown, TX
| | - Lacey A. Burey
- The Methodist Hospital Cancer Center, The Methodist Hospital Research Institute, Houston, TX
| | - Melissa D. Landis
- The Methodist Hospital Cancer Center, The Methodist Hospital Research Institute, Houston, TX
| | - Jenny C. Chang
- The Methodist Hospital Cancer Center, The Methodist Hospital Research Institute, Houston, TX
- Department of Medicine, Weill Cornell Medical College, New York, NY
| | - Mauro Ferrari
- Department of Medicine, Weill Cornell Medical College, New York, NY
- President and CEO, Ernest Cockrell Jr. Distinguished Endowed Chair, The Methodist Hospital Research Institute, Houston, TX
- President, Alliance for NanoHealth, Houston, TX
| | - Hermann B. Frieboes
- Department of Electrical and Computer Engineering, University of Louisville, Louisville, KY
- Department of Bioengineering, University of Louisville, Louisville, KY
- James Graham Brown Cancer Center, University of Louisville, 419 Lutz Hall, Louisville, KY 40208
| |
Collapse
|
22
|
Fine D, Grattoni A, Goodall R, Bansal SS, Chiappini C, Hosali S, van de Ven AL, Srinivasan S, Liu X, Godin B, Brousseau L, Yazdi IK, Fernandez-Moure J, Tasciotti E, Wu HJ, Hu Y, Klemm S, Ferrari M. Biocomposites: Silicon Micro- and Nanofabrication for Medicine (Adv. Healthcare Mater. 5/2013). Adv Healthc Mater 2013. [DOI: 10.1002/adhm.201370024] [Citation(s) in RCA: 3] [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: 11/11/2022]
|
23
|
Fine D, Grattoni A, Goodall R, Bansal SS, Chiappini C, Hosali S, van de Ven AL, Srinivasan S, Liu X, Godin B, Brousseau L, Yazdi IK, Fernandez-Moure J, Tasciotti E, Wu HJ, Hu Y, Klemm S, Ferrari M. Silicon micro- and nanofabrication for medicine. Adv Healthc Mater 2013; 2:632-66. [PMID: 23584841 PMCID: PMC3777663 DOI: 10.1002/adhm.201200214] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Revised: 08/31/2012] [Indexed: 12/13/2022]
Abstract
This manuscript constitutes a review of several innovative biomedical technologies fabricated using the precision and accuracy of silicon micro- and nanofabrication. The technologies to be reviewed are subcutaneous nanochannel drug delivery implants for the continuous tunable zero-order release of therapeutics, multi-stage logic embedded vectors for the targeted systemic distribution of both therapeutic and imaging contrast agents, silicon and porous silicon nanowires for investigating cellular interactions and processes as well as for molecular and drug delivery applications, porous silicon (pSi) as inclusions into biocomposites for tissue engineering, especially as it applies to bone repair and regrowth, and porous silica chips for proteomic profiling. In the case of the biocomposites, the specifically designed pSi inclusions not only add to the structural robustness, but can also promote tissue and bone regrowth, fight infection, and reduce pain by releasing stimulating factors and other therapeutic agents stored within their porous network. The common material thread throughout all of these constructs, silicon and its associated dielectrics (silicon dioxide, silicon nitride, etc.), can be precisely and accurately machined using the same scalable micro- and nanofabrication protocols that are ubiquitous within the semiconductor industry. These techniques lend themselves to the high throughput production of exquisitely defined and monodispersed nanoscale features that should eliminate architectural randomness as a source of experimental variation thereby potentially leading to more rapid clinical translation.
Collapse
Affiliation(s)
- Daniel Fine
- Department of Nanomedicine, The Methodist Hospital Research Institute, Houston, TX 77030, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Parodi A, Quattrocchi N, van de Ven AL, Chiappini C, Evangelopoulos M, Martinez JO, Brown BS, Khaled SZ, Yazdi IK, Enzo MV, Isenhart L, Ferrari M, Tasciotti E. Synthetic nanoparticles functionalized with biomimetic leukocyte membranes possess cell-like functions. Nat Nanotechnol 2013; 8:61-8. [PMID: 23241654 PMCID: PMC3751189 DOI: 10.1038/nnano.2012.212] [Citation(s) in RCA: 757] [Impact Index Per Article: 68.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Accepted: 11/02/2012] [Indexed: 04/14/2023]
Abstract
The therapeutic efficacy of systemic drug-delivery vehicles depends on their ability to evade the immune system, cross the biological barriers of the body and localize at target tissues. White blood cells of the immune system--known as leukocytes--possess all of these properties and exert their targeting ability through cellular membrane interactions. Here, we show that nanoporous silicon particles can successfully perform all these actions when they are coated with cellular membranes purified from leukocytes. These hybrid particles, called leukolike vectors, can avoid being cleared by the immune system. Furthermore, they can communicate with endothelial cells through receptor-ligand interactions, and transport and release a payload across an inflamed reconstructed endothelium. Moreover, leukolike vectors retained their functions when injected in vivo, showing enhanced circulation time and improved accumulation in a tumour.
Collapse
Affiliation(s)
- Alessandro Parodi
- Department of Nanomedicine, The Methodist Hospital System Research Institute, Houston, Texas 77030, USA
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
25
|
van de Ven AL, Wu M, Lowengrub J, McDougall SR, Chaplain MAJ, Cristini V, Ferrari M, Frieboes HB. Integrated intravital microscopy and mathematical modeling to optimize nanotherapeutics delivery to tumors. AIP Adv 2012; 2:11208. [PMID: 22489278 PMCID: PMC3321519 DOI: 10.1063/1.3699060] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2011] [Accepted: 11/05/2011] [Indexed: 05/15/2023]
Abstract
Inefficient vascularization hinders the optimal transport of cell nutrients, oxygen, and drugs to cancer cells in solid tumors. Gradients of these substances maintain a heterogeneous cell-scale microenvironment through which drugs and their carriers must travel, significantly limiting optimal drug exposure. In this study, we integrate intravital microscopy with a mathematical model of cancer to evaluate the behavior of nanoparticle-based drug delivery systems designed to circumvent biophysical barriers. We simulate the effect of doxorubicin delivered via porous 1000 x 400 nm plateloid silicon particles to a solid tumor characterized by a realistic vasculature, and vary the parameters to determine how much drug per particle and how many particles need to be released within the vasculature in order to achieve remission of the tumor. We envision that this work will contribute to the development of quantitative measures of nanoparticle design and drug loading in order to optimize cancer treatment via nanotherapeutics.
Collapse
|
26
|
Abstract
Logic-embedded vectors (LEVs) have been introduced as a means to overcome sequential, biological barriers that prevent particle-based drug delivery systems from reaching their targets. In this chapter, we address the challenge of fabricating and optimizing LEVs to reach non-endosomal targets. We describe the general preparation, characterization, and cellular association of porous silicon-based LEVs. A specific example of LEV fabrication from start to finish, along with optimization and troubleshooting information, is presented to serve as a template for future designs.
Collapse
Affiliation(s)
- Anne L. van de Ven
- Department of Nanomedicine, Methodist Hospital Research Institute, Houston, TX 77030
| | - Aaron Mack
- Department of Nanomedicine, Methodist Hospital Research Institute, Houston, TX 77030
| | - Kenneth Dunner
- High Resolution Microscopy Imaging Facility, MD Anderson Cancer Center, Houston, TX 77030
| | - Mauro Ferrari
- President and CEO, Methodist Hospital Research Institute, Houston, TX 77030
| | - Rita Serda
- Department of Nanomedicine, Methodist Hospital Research Institute, Houston, TX 77030
| |
Collapse
|
27
|
van de Ven AL, Kim P, Haley O, Fakhoury JR, Adriani G, Schmulen J, Moloney P, Hussain F, Ferrari M, Liu X, Yun SH, Decuzzi P. Rapid tumoritropic accumulation of systemically injected plateloid particles and their biodistribution. J Control Release 2011; 158:148-55. [PMID: 22062689 DOI: 10.1016/j.jconrel.2011.10.021] [Citation(s) in RCA: 135] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2011] [Revised: 10/18/2011] [Accepted: 10/19/2011] [Indexed: 01/17/2023]
Abstract
Nanoparticles for cancer therapy and imaging are designed to accumulate in the diseased tissue by exploiting the Enhanced Permeability and Retention (EPR) effect. This limits their size to about 100nm. Here, using intravital microscopy and elemental analysis, we compare the in vivo localization of particles with different geometries and demonstrate that plateloid particles preferentially accumulate within the tumor vasculature at unprecedented levels, independent of the EPR effect. In melanoma-bearing mice, 1000×400nm plateloid particles adhered to the tumor vasculature at about 5% and 10% of the injected dose per gram organ (ID/g) for untargeted and RGD-targeted particles respectively, and exhibited the highest tumor-to-liver accumulation ratios (0.22 and 0.35). Smaller and larger plateloid particles, as well as cylindroid particles, were more extensively sequestered by the liver, spleen, and lungs. Plateloid particles appeared well-suited for taking advantage of hydrodynamic forces and interfacial interactions required for efficient tumoritropic accumulation, even without using specific targeting ligands.
Collapse
Affiliation(s)
- Anne L van de Ven
- Department of Translational Imaging and Department of Nanomedicine, The Methodist Hospital Research Institute, 6670 Bertner Ave, Houston, TX 77030, USA.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
28
|
Serda RE, Mack A, van de Ven AL, Ferrati S, Dunner K, Godin B, Chiappini C, Landry M, Brousseau L, Liu X, Bean AJ, Ferrari M. Logic-embedded vectors for intracellular partitioning, endosomal escape, and exocytosis of nanoparticles. Small 2010; 6:2691-700. [PMID: 20957619 PMCID: PMC2997879 DOI: 10.1002/smll.201000727] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2010] [Revised: 07/22/2010] [Indexed: 05/08/2023]
Abstract
A new generation of nanocarriers, logic-embedded vectors (LEVs), is endowed with the ability to localize components at multiple intracellular sites, thus creating an opportunity for synergistic control of redundant or dual-hit pathways. LEV encoding elements include size, shape, charge, and surface chemistry. In this study, LEVs consist of porous silicon nanocarriers, programmed for cellular uptake and trafficking along the endosomal pathway, and surface-tailored iron oxide nanoparticles, programmed for endosomal sorting and partitioning of particles into unique cellular locations. In the presence of persistent endosomal localization of silicon nanocarriers, amine-functionalized nanoparticles are sorted into multiple vesicular bodies that form novel membrane-bound compartments compatible with cellular secretion, while chitosan-coated nanoparticles escape from endosomes and enter the cytosol. Encapsulation within the porous silicon matrix protects these nanoparticle surface-tailored properties, and enhances endosomal escape of chitosan-coated nanoparticles. Thus, LEVs provide a mechanism for shielded transport of nanoparticles to the lesion, cellular manipulation at multiple levels, and a means for targeting both within and between cells.
Collapse
Affiliation(s)
- Rita E Serda
- Department of NanoMedicine and Biomedical Engineering, University of Texas Health Science Center, 1825 Pressler Street, Suite 537, Houston, TX 77030, USA.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Sakamoto JH, van de Ven AL, Godin B, Blanco E, Serda RE, Grattoni A, Ziemys A, Bouamrani A, Hu T, Ranganathan SI, De Rosa E, Martinez JO, Smid CA, Buchanan RM, Lee SY, Srinivasan S, Landry M, Meyn A, Tasciotti E, Liu X, Decuzzi P, Ferrari M. Enabling individualized therapy through nanotechnology. Pharmacol Res 2010; 62:57-89. [PMID: 20045055 DOI: 10.1016/j.phrs.2009.12.011] [Citation(s) in RCA: 152] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2009] [Accepted: 12/21/2009] [Indexed: 12/13/2022]
Abstract
Individualized medicine is the healthcare strategy that rebukes the idiomatic dogma of 'losing sight of the forest for the trees'. We are entering a new era of healthcare where it is no longer acceptable to develop and market a drug that is effective for only 80% of the patient population. The emergence of "-omic" technologies (e.g. genomics, transcriptomics, proteomics, metabolomics) and advances in systems biology are magnifying the deficiencies of standardized therapy, which often provide little treatment latitude for accommodating patient physiologic idiosyncrasies. A personalized approach to medicine is not a novel concept. Ever since the scientific community began unraveling the mysteries of the genome, the promise of discarding generic treatment regimens in favor of patient-specific therapies became more feasible and realistic. One of the major scientific impediments of this movement towards personalized medicine has been the need for technological enablement. Nanotechnology is projected to play a critical role in patient-specific therapy; however, this transition will depend heavily upon the evolutionary development of a systems biology approach to clinical medicine based upon "-omic" technology analysis and integration. This manuscript provides a forward looking assessment of the promise of nanomedicine as it pertains to individualized medicine and establishes a technology "snapshot" of the current state of nano-based products over a vast array of clinical indications and range of patient specificity. Other issues such as market driven hurdles and regulatory compliance reform are anticipated to "self-correct" in accordance to scientific advancement and healthcare demand. These peripheral, non-scientific concerns are not addressed at length in this manuscript; however they do exist, and their impact to the paradigm shifting healthcare transformation towards individualized medicine will be critical for its success.
Collapse
Affiliation(s)
- Jason H Sakamoto
- The University of Texas Health Science Center, Department of Nanomedicine and Biomedical Engineering, Houston, TX 77030, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Ghosn B, van de Ven AL, Tam J, Gillenwater A, Sokolov KV, Richards-Kortum R, Roy K. Efficient mucosal delivery of optical contrast agents using imidazole-modified chitosan. J Biomed Opt 2010; 15:015003. [PMID: 20210443 PMCID: PMC2839797 DOI: 10.1117/1.3309739] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2009] [Revised: 12/01/2009] [Accepted: 12/08/2009] [Indexed: 05/24/2023]
Abstract
The clinical applicability of antibodies and plasmonic nanosensors as topically applied, molecule-specific optical diagnostic agents for noninvasive early detection of cancer and precancer is severely limited by our inability to efficiently deliver macromolecules and nanoparticles through mucosal tissues. We have developed an imidazole-functionalized conjugate of the polysaccharide chitosan (chitosan-IAA) to enhance topical delivery of contrast agents, ranging from small molecules and antibodies to gold nanoparticles up to 44 nm in average diameter. Contrast agent uptake and localization in freshly resected mucosal tissues was monitored using confocal microscopy. Chitosan-IAA was found to reversibly enhance mucosal permeability in a rapid, reproducible manner, facilitating transepithelial delivery of optical contrast agents. Permeation enhancement occurred through an active process, resulting in the delivery of contrast agents via a paracellular or a combined paracellular/transcellular route depending on size. Coadministration of epidermal growth factor receptor-targeted antibodies with chitosan-IAA facilitated specific labeling and discrimination between paired normal and malignant human oral biopsies. Together, these data suggest that chitosan-IAA is a promising topical permeation enhancer for mucosal delivery of optical contrast agents.
Collapse
Affiliation(s)
- Bilal Ghosn
- The University of Texas at Austin, Department of Biomedical Engineering, Austin, Texas 78712, USA
| | | | | | | | | | | | | |
Collapse
|
31
|
van de Ven AL, Adler-Storthz K, Richards-Kortum R. Delivery of optical contrast agents using Triton-X100, part 2: enhanced mucosal permeation for the detection of cancer biomarkers. J Biomed Opt 2009; 14:021013. [PMID: 19405726 PMCID: PMC2746827 DOI: 10.1117/1.3090437] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Uniform delivery of optical contrast agents through mucosal tissue has proven a significant challenge. Topical permeation enhancers that have proven useful for skin demonstrate limited success in mucosal tissue. We sought to develop a topical permeation strategy capable of delivering tissue-impermeant molecular-specific contrast agents through mucosal epithelium in a uniform, controlled manner. We demonstrate that Triton-X100 can be utilized to deliver targeted and untargeted optical contrast agents through freshly excised normal mucosal epithelium and epithelial cancer. Macromolecules up to 150 kDa in size were successfully delivered via transcellular and paracellular routes. The depth of Triton-mediated permeation was modulated by varying the treatment time and concentration. Uniform epithelial penetration to a depth of 500 mum was achieved in approximately 1.5 h for molecules of 40 kDa or less. Larger optical probes required longer treatment times. Coadministration of molecular-specific contrast agents with Triton-X100 treatment facilitated simultaneous labeling of biomarkers on the cell membrane, in the cytoplasm, and in the nucleus with high specificity. Together, these data suggest that Triton-X100 is a promising topical permeation enhancer for mucosal delivery of tissue-impermeant molecular-specific optical contrast agents.
Collapse
Affiliation(s)
- Anne L van de Ven
- Rice University, Department of Bioengineering, MS 142, 6100 Main Street, Keck Hall, Suite 116, Houston, TX 77005, Phone: 713-348-3022, Fax: 713-348-5877,
| | - Karen Adler-Storthz
- Department of Diagnostic Sciences, University of Texas Dental Branch, 6516 M.D. Anderson Blvd, DBB, 4.133, Houston, TX 77030, Phone: 713-500-4362, Fax: 713-500-4373,
| | - Rebecca Richards-Kortum
- Rice University, Department of Bioengineering, MS 142, 6100 Main Street, Keck Hall, Suite 116, Houston, TX 77005, Phone: 713-348-3823, Fax: 713-348-5877,
| |
Collapse
|
32
|
van de Ven AL, Adler-Storthz K, Richards-Kortum R. Delivery of optical contrast agents using Triton-X100, part 1: reversible permeabilization of live cells for intracellular labeling. J Biomed Opt 2009; 14:021012. [PMID: 19405725 PMCID: PMC2748244 DOI: 10.1117/1.3090448] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Effective delivery of optical contrast agents into live cells remains a significant challenge. We sought to determine whether Triton-X100, a detergent commonly used for membrane isolation and protein purification, could be used to effectively and reversibly permeabilize live cells for delivery of targeted optical contrast agents. Although Triton-X100 is widely recognized as a good cell permeabilization agent, no systematic study has evaluated the efficiency, reproducibility, and reversibility of Triton-X100-mediated permeabilization in live mammalian cells. We report a series of studies to characterize macromolecule delivery in cells following Triton-X100 treatment. Using this approach, we demonstrate that molecules ranging from 1 to 150 kDa in molecular weight can be reproducibly delivered into live cells by controlling the moles of Triton-X100 relative to the number of cells to be treated. When Triton-X100 is administered at or near the minimum effective concentration, cell permeabilization is generally reversed within 24 h, and treated cells continue to proliferate and show metabolic activity during the restoration of membrane integrity. We conclude that Triton-X100 is a promising permeabilization agent for efficient and reproducible delivery of optical contrast agents into live mammalian cells.
Collapse
Affiliation(s)
- Anne L van de Ven
- Rice University, Department of Bioengineering, MS 142, 6100 Main Street, Keck Hall, Suite 116, Houston, TX 77005, Phone: 713-348-3022, Fax: 713-348-5877
| | - Karen Adler-Storthz
- Department of Diagnostic Sciences, University of Texas Dental Branch, 6516 M.D. Anderson Blvd, DBB, 4.133, Houston, TX 77030, Phone: 713-500-4362, Fax: 713-500-4373
| | - Rebecca Richards-Kortum
- Rice University, Department of Bioengineering, MS 142, 6100 Main Street, Keck Hall, Suite 116, Houston, TX 77005, Phone: 713-348-3823, Fax: 713-348-5877
| |
Collapse
|