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Rodriguez Troncoso J, Marium Mim U, Ivers JD, Paidi SK, Harper MG, Nguyen KG, Ravindranathan S, Rebello L, Lee DE, Zaharoff DA, Barman I, Rajaram N. Evaluating differences in optical properties of indolent and aggressive murine breast tumors using quantitative diffuse reflectance spectroscopy. BIOMEDICAL OPTICS EXPRESS 2023; 14:6114-6126. [PMID: 38420330 PMCID: PMC10898562 DOI: 10.1364/boe.505153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/06/2023] [Accepted: 10/26/2023] [Indexed: 03/02/2024]
Abstract
We used diffuse reflectance spectroscopy to quantify tissue absorption and scattering-based parameters in similarly sized tumors derived from a panel of four isogenic murine breast cancer cell lines (4T1, 4T07, 168FARN, 67NR) that are each capable of accomplishing different steps of the invasion-metastasis cascade. We found lower tissue scattering, increased hemoglobin concentration, and lower vascular oxygenation in indolent 67NR tumors incapable of metastasis compared with aggressive 4T1 tumors capable of metastasis. Supervised learning statistical approaches were able to accurately differentiate between tumor groups and classify tumors according to their ability to accomplish each step of the invasion-metastasis cascade. We investigated whether the inhibition of metastasis-promoting genes in the highly metastatic 4T1 tumors resulted in measurable optical changes that made these tumors similar to the indolent 67NR tumors. These results demonstrate the potential of diffuse reflectance spectroscopy to noninvasively evaluate tumor biology and discriminate between indolent and aggressive tumors.
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Affiliation(s)
| | - Umme Marium Mim
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, AR 72701, USA
| | - Jesse D. Ivers
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, AR 72701, USA
| | - Santosh K. Paidi
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Mason G. Harper
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, AR 72701, USA
| | - Khue G. Nguyen
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, AR 72701, USA
| | - Sruthi Ravindranathan
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, AR 72701, USA
| | - Lisa Rebello
- Cell and Molecular Biology Program, University of Arkansas, Fayetteville, AR 72701, USA
| | - David E. Lee
- Cell and Molecular Biology Program, University of Arkansas, Fayetteville, AR 72701, USA
- Department of Exercise Science, University of Arkansas, Fayetteville, AR 72703, USA
| | - David A. Zaharoff
- Joint Department of Biomedical Engineering, University of North Carolina and North Carolina State University, Raleigh, NC 27695, USA
| | - Ishan Barman
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Narasimhan Rajaram
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, AR 72701, USA
- Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
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2
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Schmidt DR, Gramatikov IMT, Sheen A, Williams CL, Hurwitz M, Dodge LE, Holupka E, Kiger WS, Cornwall-Brady MR, Huang W, Mak HH, Cormier KS, Condon C, Dane Wittrup K, Yilmaz ÖH, Stevenson MA, Down JD, Floyd SR, Roper J, Vander Heiden MG. Ablative radiotherapy improves survival but does not cure autochthonous mouse models of prostate and colorectal cancer. COMMUNICATIONS MEDICINE 2023; 3:108. [PMID: 37558833 PMCID: PMC10412558 DOI: 10.1038/s43856-023-00336-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 07/24/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND Genetically engineered mouse models (GEMMs) of cancer are powerful tools to study mechanisms of disease progression and therapy response, yet little is known about how these models respond to multimodality therapy used in patients. Radiation therapy (RT) is frequently used to treat localized cancers with curative intent, delay progression of oligometastases, and palliate symptoms of metastatic disease. METHODS Here we report the development, testing, and validation of a platform to immobilize and target tumors in mice with stereotactic ablative RT (SART). Xenograft and autochthonous tumor models were treated with hypofractionated ablative doses of radiotherapy. RESULTS We demonstrate that hypofractionated regimens used in clinical practice can be effectively delivered in mouse models. SART alters tumor stroma and the immune environment, improves survival in GEMMs of primary prostate and colorectal cancer, and synergizes with androgen deprivation in prostate cancer. Complete pathologic responses were achieved in xenograft models, but not in GEMMs. CONCLUSIONS While SART is capable of fully ablating xenografts, it is unable to completely eradicate disease in GEMMs, arguing that resistance to potentially curative therapy can be modeled in GEMMs.
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Affiliation(s)
- Daniel R Schmidt
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Department of Radiation Oncology, Beth Israel Deaconess Medical Center, Boston, MA, USA.
- Harvard Medical School, Boston, MA, USA.
| | - Iva Monique T Gramatikov
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Radiation Oncology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Allison Sheen
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Christopher L Williams
- Harvard Medical School, Boston, MA, USA
- Dana-Farber Cancer Institute, Boston, MA, USA
- Department of Radiation Oncology, Brigham and Women's Hospital, Boston, MA, USA
| | - Martina Hurwitz
- Department of Radiation Oncology, Beth Israel Deaconess Medical Center, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Laura E Dodge
- Harvard Medical School, Boston, MA, USA
- Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, Boston, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Edward Holupka
- Department of Radiation Oncology, Beth Israel Deaconess Medical Center, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - W S Kiger
- Department of Radiation Oncology, Beth Israel Deaconess Medical Center, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Milton R Cornwall-Brady
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Wei Huang
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Howard H Mak
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Kathleen S Cormier
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Charlene Condon
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - K Dane Wittrup
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Ömer H Yilmaz
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Harvard Medical School, Boston, MA, USA
- Department of Pathology, Massachusetts General Hospital, Boston, USA
| | - Mary Ann Stevenson
- Department of Radiation Oncology, Beth Israel Deaconess Medical Center, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Julian D Down
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Scott R Floyd
- Department of Radiation Oncology, Duke University School of Medicine, Durham, NC, USA
| | - Jatin Roper
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Medicine, Division of Gastroenterology, and Department of Pharmacology and Cancer Biology, Duke University, Durham, NC, USA
| | - Matthew G Vander Heiden
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, USA.
- Dana-Farber Cancer Institute, Boston, MA, USA.
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3
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Hélissen O, Kermorgant M, Déjean S, Mercadie A, Le Gonidec S, Zahreddine R, Calise D, Nasr N, Galès C, Arvanitis DN, Pavy-Le Traon A. Autonomic Nervous System Adaptation and Circadian Rhythm Disturbances of the Cardiovascular System in a Ground-Based Murine Model of Spaceflight. Life (Basel) 2023; 13:life13030844. [PMID: 36983999 PMCID: PMC10057816 DOI: 10.3390/life13030844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/16/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
Whether in real or simulated microgravity, Humans or animals, the kinetics of cardiovascular adaptation and its regulation by the autonomic nervous system (ANS) remain controversial. In this study, we used hindlimb unloading (HU) in 10 conscious mice. Blood pressure (BP), heart rate (HR), temperature, and locomotor activity were continuously monitored with radio-telemetry, during 3 days of control, 5 days of HU, and 2 days of recovery. Six additional mice were used to assess core temperature. ANS activity was indirectly determined by analyzing both heart rate variability (HRV) and baroreflex sensitivity (BRS). Our study showed that HU induced an initial bradycardia, accompanied by an increase in vagal activity markers of HRV and BRS, together with a decrease in water intake, indicating the early adaptation to fluid redistribution. During HU, BRS was reduced; temperature and BP circadian rhythms were altered, showing a loss in day/night differences, a decrease in cycle amplitude, a drop in core body temperature, and an increase in day BP suggestive of a rise in sympathetic activity. Reloading induced resting tachycardia and a decrease in BP, vagal activity, and BRS. In addition to cardiovascular deconditioning, HU induces disruption in day/night rhythmicity of locomotor activity, temperature, and BP.
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Affiliation(s)
- Ophélie Hélissen
- Institute of Cardiovascular and Metabolic Diseases, UMR1297, INSERM, University Hospital of Toulouse, 31400 Toulouse, France
| | - Marc Kermorgant
- Institute of Cardiovascular and Metabolic Diseases, UMR1297, INSERM, University Hospital of Toulouse, 31400 Toulouse, France
- Neurology Department, University Hospital of Toulouse, 31400 Toulouse, France
| | - Sébastien Déjean
- Institut de Mathématiques de Toulouse, UMR5219, CNRS, Université de Toulouse, UT3, 31062 Toulouse, France
| | - Aurélie Mercadie
- Institut de Mathématiques de Toulouse, UMR5219, CNRS, Université de Toulouse, UT3, 31062 Toulouse, France
| | - Sophie Le Gonidec
- CREFRE-Anexplo, Services Phénotypage et Microchirurgie, UMS006, INSERM, Université de Toulouse, UT3, ENVT, 31062 Toulouse, France
| | - Rana Zahreddine
- CREFRE-Anexplo, Services Phénotypage et Microchirurgie, UMS006, INSERM, Université de Toulouse, UT3, ENVT, 31062 Toulouse, France
| | - Denis Calise
- CREFRE-Anexplo, Services Phénotypage et Microchirurgie, UMS006, INSERM, Université de Toulouse, UT3, ENVT, 31062 Toulouse, France
| | - Nathalie Nasr
- Institute of Cardiovascular and Metabolic Diseases, UMR1297, INSERM, University Hospital of Toulouse, 31400 Toulouse, France
| | - Céline Galès
- Institute of Cardiovascular and Metabolic Diseases, UMR1297, INSERM, University Hospital of Toulouse, 31400 Toulouse, France
| | - Dina N Arvanitis
- Institute of Cardiovascular and Metabolic Diseases, UMR1297, INSERM, University Hospital of Toulouse, 31400 Toulouse, France
| | - Anne Pavy-Le Traon
- Institute of Cardiovascular and Metabolic Diseases, UMR1297, INSERM, University Hospital of Toulouse, 31400 Toulouse, France
- Neurology Department, University Hospital of Toulouse, 31400 Toulouse, France
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Akhmedzhanova KG, Kurnikov AA, Khochenkov DA, Khochenkova YA, Glyavina AM, Kazakov VV, Yudintsev AV, Maslennikova AV, Turchin IV, Subochev PV, Orlova AG. In vivo monitoring of vascularization and oxygenation of tumor xenografts using optoacoustic microscopy and diffuse optical spectroscopy. BIOMEDICAL OPTICS EXPRESS 2022; 13:5695-5708. [PMID: 36733761 PMCID: PMC9872889 DOI: 10.1364/boe.469380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/31/2022] [Accepted: 09/22/2022] [Indexed: 05/11/2023]
Abstract
The research is devoted to comparison of the blood vessel structure and the oxygen state of three xenografts: SN-12C, HCT-116 and Colo320. Differences in the vessel formation and the level of oxygenation are revealed by optoacoustic (OA) microscopy and diffuse optical spectroscopy (DOS) respectively. The Colo320 tumor is characterized by the highest values of vessel size and fraction. DOS showed increased content of deoxyhemoglobin that led to reduction of saturation level for Colo320 as compared to other tumors. Immunohistochemical (IHC) analysis for CD31 demonstrates the higher number of vessels in Colo320. The IHC for hypoxia was consistent with DOS results and revealed higher values of the relative hypoxic fraction in Colo320.
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Affiliation(s)
- K. G. Akhmedzhanova
- Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, Russia
- Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
| | - A. A. Kurnikov
- Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, Russia
| | - D. A. Khochenkov
- N.N. Blokhin National Medical Research Center of Oncology, Moscow, Russia
- Togliatti State University, Togliatti, Russia
| | - Yu. A. Khochenkova
- N.N. Blokhin National Medical Research Center of Oncology, Moscow, Russia
| | - A. M. Glyavina
- Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, Russia
- Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
| | - V. V. Kazakov
- Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, Russia
| | - A. V. Yudintsev
- Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
| | - A. V. Maslennikova
- Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, Russia
- Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
| | - I. V. Turchin
- Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, Russia
| | - P. V. Subochev
- Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, Russia
| | - A. G. Orlova
- Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, Russia
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5
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Mundo AI, Tipton JR, Muldoon TJ. Generalized additive models to analyze nonlinear trends in biomedical longitudinal data using R: Beyond repeated measures ANOVA and linear mixed models. Stat Med 2022; 41:4266-4283. [PMID: 35796389 PMCID: PMC9844249 DOI: 10.1002/sim.9505] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 01/24/2022] [Accepted: 06/06/2022] [Indexed: 01/19/2023]
Abstract
In biomedical research, the outcome of longitudinal studies has been traditionally analyzed using the repeated measures analysis of variance (rm-ANOVA) or more recently, linear mixed models (LMEMs). Although LMEMs are less restrictive than rm-ANOVA as they can work with unbalanced data and non-constant correlation between observations, both methodologies assume a linear trend in the measured response. It is common in biomedical research that the true trend response is nonlinear and in these cases the linearity assumption of rm-ANOVA and LMEMs can lead to biased estimates and unreliable inference. In contrast, GAMs relax the linearity assumption of rm-ANOVA and LMEMs and allow the data to determine the fit of the model while also permitting incomplete observations and different correlation structures. Therefore, GAMs present an excellent choice to analyze longitudinal data with non-linear trends in the context of biomedical research. This paper summarizes the limitations of rm-ANOVA and LMEMs and uses simulated data to visually show how both methods produce biased estimates when used on data with non-linear trends. We present the basic theory of GAMs and using reported trends of oxygen saturation in tumors, we simulate example longitudinal data (2 treatment groups, 10 subjects per group, 5 repeated measures for each group) to demonstrate their implementation in R. We also show that GAMs are able to produce estimates with non-linear trends even when incomplete observations exist (with 40% of the simulated observations missing). To make this work reproducible, the code and data used in this paper are available at: https://github.com/aimundo/GAMs-biomedical-research.
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Affiliation(s)
- Ariel I. Mundo
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, Arkansas, USA
| | - John R. Tipton
- Department of Mathematical Sciences, University of Arkansas, Fayetteville, Arkansas, USA
| | - Timothy J. Muldoon
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, Arkansas, USA
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6
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Orlova A, Pavlova K, Kurnikov A, Maslennikova A, Myagcheva M, Zakharov E, Skamnitskiy D, Perekatova V, Khilov A, Kovalchuk A, Moiseev A, Turchin I, Razansky D, Subochev P. Noninvasive optoacoustic microangiography reveals dose and size dependency of radiation-induced deep tumor vasculature remodeling. Neoplasia 2022; 26:100778. [PMID: 35220045 PMCID: PMC8889238 DOI: 10.1016/j.neo.2022.100778] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 02/04/2022] [Accepted: 02/11/2022] [Indexed: 01/07/2023]
Abstract
Tumor microvascular responses may provide a sensitive readout indicative of radiation therapy efficacy, its time course and dose dependencies. However, direct high-resolution observation and longitudinal monitoring of large-scale microvascular remodeling in deep tissues remained challenging with the conventional microscopy approaches. We report on a non-invasive longitudinal study of morphological and functional neovascular responses by means of scanning optoacoustic (ОА) microangiography. In vivo imaging of CT26 tumor response to a single irradiation at varying dose (6, 12, and 18 Gy) has been performed over ten days following treatment. Tumor oxygenation levels were further estimated using diffuse optical spectroscopy (DOS) with a contact fiber probe. OA revealed the formation of extended vascular structures on the whole tumor scale during its proliferation, whereas only short fragmented vascular regions were identified following irradiation. On the first day post treatment, a decrease in the density of small (capillary-sized) and medium-sized vessels was revealed, accompanied by an increase in their fragmentation. Larger vessels exhibited an increase in their density accompanied by a decline in the number of vascular segments. Short-lasting response has been observed after 6 and 12 Gy irradiations, whereas 18 Gy treatment resulted in prolonged responses, up to the tenth day after irradiation. DOS measurements further revealed a delayed increase of tumor oxygenation levels for 18 Gy irradiations, commencing on the sixth day post treatment. The ameliorated oxygenation is attributed to diminished oxygen consumption by inhibited tumor cells but not to the elevation of oxygen supply. This work is the first to demonstrate the differential (size-dependent) nature of vascular responses to radiation treatments at varying doses in vivo. The OA approach thus facilitates the study of radiation-induced vascular changes in an unperturbed in vivo environment while enabling deep tissue high-resolution observations at the whole tumor scale.
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7
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Keša P, Pokorná E, Grajciarová M, Tonar Z, Vočková P, Trochet P, Kopeček M, Jakša R, Šefc L, Klener P. Quantitative In Vivo Monitoring of Hypoxia and Vascularization of Patient-Derived Murine Xenografts of Mantle Cell Lymphoma Using Photoacoustic and Ultrasound Imaging. ULTRASOUND IN MEDICINE & BIOLOGY 2021; 47:1099-1107. [PMID: 33455807 DOI: 10.1016/j.ultrasmedbio.2020.12.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 11/05/2020] [Accepted: 12/13/2020] [Indexed: 05/16/2023]
Abstract
Tumor oxygenation and vascularization are important parameters that determine the aggressiveness of the tumor and its resistance to cancer therapies. We introduce dual-modality ultrasound and photoacoustic imaging (US-PAI) for the direct, non-invasive real-time in vivo evaluation of oxygenation and vascularization of patient-derived xenografts (PDXs) of B-cell mantle cell lymphomas. The different optical properties of oxyhemoglobin and deoxyhemoglobin make it possible to determine oxygen saturation (sO2) in tissues using PAI. High-frequency color Doppler imaging enables the visualization of blood flow with high resolution. Tumor oxygenation and vascularization were studied in vivo during the growth of three different subcutaneously implanted patient-derived xenograft (PDX) lymphomas (VFN-M1, VFN-M2 and VFN-M5 R1). Similar values of sO2 (sO2 Vital), determined from US-PAI volumetric analysis, were obtained in small and large VFN-M1 tumors ranging from 37.9 ± 2.2 to 40.5 ± 6.0 sO2 Vital (%) and 37.5 ± 4.0 to 35.7 ± 4.6 sO2 Vital (%) for small and large VFN-M2 PDXs. In contrast, the higher sO2 Vital values ranging from 57.1 ± 4.8 to 40.8 ± 5.7 sO2 Vital (%) (small to large) of VFN-M5 R1 tumors corresponds with the higher aggressiveness of that PDX model. The different tumor percentage vascularization (assessed as micro-vessel areas) of VFN-M1, VFN-M2 and VFN-M5 R1 obtained by color Doppler (2.8 ± 0.1%, 3.8 ± 0.8% and 10.3 ± 2.7%) in large-stage tumors clearly corresponds with their diverse growth and aggressiveness. The data obtained by color Doppler were validated by histology. In conclusion, US-PAI rapidly and accurately provided relevant and reproducible information on tissue oxygenation in PDX tumors in real time without the need for a contrast agent.
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Affiliation(s)
- Peter Keša
- Center for Advanced Preclinical Imaging (CAPI), First Faculty of Medicine, Charles University, Prague, Czech Republic.
| | - Eva Pokorná
- Institute of Pathological Physiology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Martina Grajciarová
- Department of Histology and Embryology, Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Zbyněk Tonar
- Department of Histology and Embryology, Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Petra Vočková
- Institute of Pathological Physiology, First Faculty of Medicine, Charles University, Prague, Czech Republic; First Department of Medicine-Hematology, University General Hospital, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | | | | | - Radek Jakša
- Institute of Pathology, University General Hospital, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Luděk Šefc
- Center for Advanced Preclinical Imaging (CAPI), First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Pavel Klener
- Institute of Pathological Physiology, First Faculty of Medicine, Charles University, Prague, Czech Republic; First Department of Medicine-Hematology, University General Hospital, First Faculty of Medicine, Charles University, Prague, Czech Republic
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8
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Dadgar S, Troncoso JR, Siegel ER, Curry NM, Griffin RJ, Dings RPM, Rajaram N. Spectroscopic investigation of radiation-induced reoxygenation in radiation-resistant tumors. Neoplasia 2021; 23:49-57. [PMID: 33220616 PMCID: PMC7683290 DOI: 10.1016/j.neo.2020.11.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/29/2020] [Accepted: 11/03/2020] [Indexed: 12/12/2022]
Abstract
Fractionated radiation therapy is believed to reoxygenate and subsequently radiosensitize surviving hypoxic cancer cells. Measuring tumor reoxygenation between radiation fractions could conceivably provide an early biomarker of treatment response. However, the relationship between tumor reoxygenation and local control is not well understood. We used noninvasive optical fiber-based diffuse reflectance spectroscopy to monitor radiation-induced changes in hemoglobin oxygen saturation (sO2) in tumor xenografts grown from two head and neck squamous cell carcinoma cell lines - UM-SCC-22B and UM-SCC-47. Tumors were treated with 4 doses of 2 Gy over 2 consecutive weeks and diffuse reflectance spectra were acquired every day during the 2-week period. There was a statistically significant increase in sO2 in the treatment-responsive UM-SCC-22B tumors immediately following radiation. This reoxygenation trend was due to an increase in oxygenated hemoglobin (HbO2) and disappeared over the next 48 h as sO2 returned to preradiation baseline values. Conversely, sO2 in the relatively radiation-resistant UM-SCC-47 tumors increased after every dose of radiation and was driven by a significant decrease in deoxygenated hemoglobin (dHb). Immunohistochemical analysis revealed significantly elevated expression of hypoxia-inducible factor (HIF-1) in the UM-SCC-47 tumors prior to radiation and up to 48 h postradiation compared with the UM-SCC-22B tumors. Our observation of a decrease in dHb, a corresponding increase in sO2, as well as greater HIF-1α expression only in UM-SCC-47 tumors strongly suggests that the reoxygenation within these tumors is due to a decrease in oxygen consumption in the cancer cells, which could potentially play a role in promoting radiation resistance.
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Affiliation(s)
- Sina Dadgar
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, AR, USA
| | | | - Eric R Siegel
- Department of Biostatistics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Natalie M Curry
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, AR, USA
| | - Robert J Griffin
- Department of Radiation Oncology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Ruud P M Dings
- Department of Radiation Oncology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Narasimhan Rajaram
- Department of Biomedical Engineering, University of Arkansas, Fayetteville, AR, USA.
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9
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Ng TS, Garlin MA, Weissleder R, Miller MA. Improving nanotherapy delivery and action through image-guided systems pharmacology. Theranostics 2020; 10:968-997. [PMID: 31938046 PMCID: PMC6956809 DOI: 10.7150/thno.37215] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 08/04/2019] [Indexed: 12/12/2022] Open
Abstract
Despite recent advances in the translation of therapeutic nanoparticles (TNPs) into the clinic, the field continues to face challenges in predictably and selectively delivering nanomaterials for the treatment of solid cancers. The concept of enhanced permeability and retention (EPR) has been coined as a convenient but simplistic descriptor of high TNP accumulation in some tumors. However, in practice EPR represents a number of physiological variables rather than a single one (including dysfunctional vasculature, compromised lymphatics and recruited host cells, among other aspects of the tumor microenvironment) — each of which can be highly heterogenous within a given tumor, patient and across patients. Therefore, a clear need exists to dissect the specific biophysical factors underlying the EPR effect, to formulate better TNP designs, and to identify patients with high-EPR tumors who are likely to respond to TNP. The overall pharmacology of TNP is governed by an interconnected set of spatially defined and dynamic processes that benefit from a systems-level quantitative approach, and insights into the physiology have profited from the marriage between in vivo imaging and quantitative systems pharmacology (QSP) methodologies. In this article, we review recent developments pertinent to image-guided systems pharmacology of nanomedicines in oncology. We first discuss recent developments of quantitative imaging technologies that enable analysis of nanomaterial pharmacology at multiple spatiotemporal scales, and then examine reports that have adopted these imaging technologies to guide QSP approaches. In particular, we focus on studies that have integrated multi-scale imaging with computational modeling to derive insights about the EPR effect, as well as studies that have used modeling to guide the manipulation of the EPR effect and other aspects of the tumor microenvironment for improving TNP action. We anticipate that the synergistic combination of imaging with systems-level computational methods for effective clinical translation of TNPs will only grow in relevance as technologies increase in resolution, multiplexing capability, and in the ability to examine heterogeneous behaviors at the single-cell level.
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Greening G, Mundo A, Rajaram N, Muldoon TJ. Sampling depth of a diffuse reflectance spectroscopy probe for in-vivo physiological quantification of murine subcutaneous tumor allografts. JOURNAL OF BIOMEDICAL OPTICS 2018; 23:1-14. [PMID: 30152204 PMCID: PMC8357195 DOI: 10.1117/1.jbo.23.8.085006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 07/23/2018] [Indexed: 05/04/2023]
Abstract
Diffuse reflectance spectroscopy (DRS) is a probe-based spectral biopsy technique used in cancer studies to quantify tissue reduced scattering (μs') and absorption (μa) coefficients and vary in source-detector separation (SDS) to fine-tune sampling depth. In subcutaneous murine tumor allografts or xenografts, a key design requirement is ensuring that the source light interrogates past the skin layer into the tumor without significantly sacrificing signal-to-noise ratio (target of ≥15 dB). To resolve this requirement, a DRS probe was designed with four SDSs (0.75, 2.00, 3.00, and 4.00 mm) to interrogate increasing tissue volumes between 450 and 900 nm. The goal was to quantify percent errors in extracting μa and μs', and to quantify sampling depth into subcutaneous Balb/c-CT26 colon tumor allografts. Using an optical phantom-based experimental method, lookup-tables were constructed relating μa,μs', diffuse reflectance, and sampling depth. Percent errors were <10 % and 5% for extracting μa and μs', respectively, for all SDSs. Sampling depth reached up to 1.6 mm at the first Q-band of hemoglobin at 542 nm, the key spectral region for quantifying tissue oxyhemoglobin concentration. This work shows that the DRS probe can accurately extract optical properties and the resultant physiological parameters such as total hemoglobin concentration and tissue oxygen saturation, from sufficient depth within subcutaneous Balb/c-CT26 colon tumor allografts. Methods described here can be generalized for other murine tumor models. Future work will explore the feasibility of the DRS in quantifying volumetric tumor perfusion in response to anticancer therapies.
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Affiliation(s)
- Gage Greening
- University of Arkansas, Department of Biomedical Engineering, Fayetteville, Arkansas, United States
| | - Ariel Mundo
- University of Arkansas, Department of Biomedical Engineering, Fayetteville, Arkansas, United States
| | - Narasimhan Rajaram
- University of Arkansas, Department of Biomedical Engineering, Fayetteville, Arkansas, United States
| | - Timothy J. Muldoon
- University of Arkansas, Department of Biomedical Engineering, Fayetteville, Arkansas, United States
- Address all correspondence to: Timothy J. Muldoon, E-mail:
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Greening G, Bess S, Muldoon T. Immunohistochemistry Staining for Tumor-associated Macrophage Polarization in Murine Subcutaneous Colon Tumor Allografts. Bio Protoc 2018. [DOI: 10.21769/bioprotoc.3106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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