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Dhull A, Zhang Z, Sharma R, Dar AI, Rani A, Wei J, Gopalakrishnan S, Ghannam A, Hahn V, Pulukuri AJ, Tasevski S, Moughni S, Wu BJ, Sharma A. Discovery of 2-deoxy glucose surfaced mixed layer dendrimer: a smart neuron targeted systemic drug delivery system for brain diseases. Theranostics 2024; 14:3221-3245. [PMID: 38855177 PMCID: PMC11155412 DOI: 10.7150/thno.95476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 05/16/2024] [Indexed: 06/11/2024] Open
Abstract
The availability of non-invasive drug delivery systems capable of efficiently transporting bioactive molecules across the blood-brain barrier to specific cells at the injury site in the brain is currently limited. Delivering drugs to neurons presents an even more formidable challenge due to their lower numbers and less phagocytic nature compared to other brain cells. Additionally, the diverse types of neurons, each performing specific functions, necessitate precise targeting of those implicated in the disease. Moreover, the complex synthetic design of drug delivery systems often hinders their clinical translation. The production of nanomaterials at an industrial scale with high reproducibility and purity is particularly challenging. However, overcoming this challenge is possible by designing nanomaterials through a straightforward, facile, and easily reproducible synthetic process. Methods: In this study, we have developed a third-generation 2-deoxy-glucose functionalized mixed layer dendrimer (2DG-D) utilizing biocompatible and cost-effective materials via a highly facile convergent approach, employing copper-catalyzed click chemistry. We further evaluated the systemic neuronal targeting and biodistribution of 2DG-D, and brain delivery of a neuroprotective agent pioglitazone (Pio) in a pediatric traumatic brain injury (TBI) model. Results: The 2DG-D exhibits favorable characteristics including high water solubility, biocompatibility, biological stability, nanoscale size, and a substantial number of end groups suitable for drug conjugation. Upon systemic administration in a pediatric mouse model of traumatic brain injury (TBI), the 2DG-D localizes in neurons at the injured brain site, clears rapidly from off-target locations, effectively delivers Pio, ameliorates neuroinflammation, and improves behavioral outcomes. Conclusions: The promising in vivo results coupled with a convenient synthetic approach for the construction of 2DG-D makes it a potential nanoplatform for addressing brain diseases.
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Affiliation(s)
- Anubhav Dhull
- Department of Chemistry, College of Arts and Sciences, Washington State University, 1470 NE College Ave, Pullman, WA, USA 99164
| | - Zhi Zhang
- Department of Natural Sciences, College of Arts, Sciences, and Letters, University of Michigan -Dearborn, 4901 Evergreen Rd, Dearborn, MI, USA 48128
| | - Rishi Sharma
- Department of Chemistry, College of Arts and Sciences, Washington State University, 1470 NE College Ave, Pullman, WA, USA 99164
| | - Aqib Iqbal Dar
- Department of Chemistry, College of Arts and Sciences, Washington State University, 1470 NE College Ave, Pullman, WA, USA 99164
| | - Anu Rani
- Department of Chemistry, College of Arts and Sciences, Washington State University, 1470 NE College Ave, Pullman, WA, USA 99164
| | - Jing Wei
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, WA, USA 99202
| | - Shamila Gopalakrishnan
- Department of Chemistry, College of Arts and Sciences, Washington State University, 1470 NE College Ave, Pullman, WA, USA 99164
| | - Amanda Ghannam
- Department of Natural Sciences, College of Arts, Sciences, and Letters, University of Michigan -Dearborn, 4901 Evergreen Rd, Dearborn, MI, USA 48128
| | - Victoria Hahn
- Department of Natural Sciences, College of Arts, Sciences, and Letters, University of Michigan -Dearborn, 4901 Evergreen Rd, Dearborn, MI, USA 48128
| | - Anunay James Pulukuri
- Department of Chemistry, College of Arts and Sciences, Washington State University, 1470 NE College Ave, Pullman, WA, USA 99164
| | - Stefanie Tasevski
- Department of Natural Sciences, College of Arts, Sciences, and Letters, University of Michigan -Dearborn, 4901 Evergreen Rd, Dearborn, MI, USA 48128
| | - Sara Moughni
- Department of Natural Sciences, College of Arts, Sciences, and Letters, University of Michigan -Dearborn, 4901 Evergreen Rd, Dearborn, MI, USA 48128
| | - Boyang Jason Wu
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, WA, USA 99202
| | - Anjali Sharma
- Department of Chemistry, College of Arts and Sciences, Washington State University, 1470 NE College Ave, Pullman, WA, USA 99164
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Tufan E, Taheri S, Karaca Z, Mehmetbeyoglu E, Yilmaz Sukranli Z, Korkmaz Bayram K, Ulutabanca H, Tanrıverdi F, Unluhizarci K, Rassoulzadegan M, Kelestimur F. Alterations in Serum miR-126-3p Levels over Time: A Marker of Pituitary Insufficiency following Head Trauma. Neuroendocrinology 2023; 114:315-330. [PMID: 38071970 PMCID: PMC10997266 DOI: 10.1159/000535748] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 12/04/2023] [Indexed: 04/06/2024]
Abstract
INTRODUCTION Traumatic brain injuries (TBIs) pose a high risk of pituitary insufficiency development in patients. We have previously reported alterations in miR-126-3p levels in sera from patients with TBI-induced pituitary deficiency. METHODS To investigate why TBI-induced pituitary deficiency develops only in some patients and to reveal the relationship between miR-126-3p with hormone axes, we used mice that were epigenetically modified with miR-126-3p at the embryonic stage. These modified mice were subjected to mild TBI (mTBI) according to the Marmarou's weight-drop model at 2 months of age. The levels of miR-126-3p were assessed at 1 and 30 days in serum after mTBI. Changes in miR-126-3p levels after mTBI of wild-type and miR-126-3p* modified mouse lines validated our human results. Additionally, hypothalamus, pituitary, and adrenal tissues were analyzed for transcripts and associated serum hormone levels. RESULTS We report that miR-126-3p directly affects hypothalamus-pituitary-adrenal (HPA) axis upregulation and ACTH secretion in the acute phase after mTBI. We also demonstrated that miR-126-3p suppresses Gnrh transcripts in the hypothalamus and pituitary, but this is not reflected in serum FSH/LH levels. The increase in ACTH levels in the acute phase may indicate that upregulation of miR-126-3p at the embryonic stage has a protective effect on the HPA axis after TBI. Notably, the most prominent transcriptional response is found in the adrenals, highlighting their role in the pathophysiology of TBI. CONCLUSION Our study revealed the role of miR-126-3p in TBI and pituitary deficiency developing after TBI, and the obtained data will significantly contribute to elucidating the mechanism of pituitary deficiency development after TBI and development of new diagnostic and treatment strategies.
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Affiliation(s)
- Esra Tufan
- Betul-Ziya Eren Genome and Stem Cell Center, Erciyes University, Kayseri, Turkey
| | - Serpil Taheri
- Betul-Ziya Eren Genome and Stem Cell Center, Erciyes University, Kayseri, Turkey,
- Department of Medical Biology, Erciyes University Medical School, Kayseri, Turkey,
| | - Züleyha Karaca
- Department of Endocrinology, Erciyes University Medical School, Kayseri, Turkey
| | - Ecmel Mehmetbeyoglu
- Betul-Ziya Eren Genome and Stem Cell Center, Erciyes University, Kayseri, Turkey
- Department of Cancer and Genetics, Cardiff University, Cardiff, UK
| | | | - Kezban Korkmaz Bayram
- Department of Medical Genetics, Yıldırım Beyazıd University Medical School, Ankara, Turkey
| | - Halil Ulutabanca
- Department of Neurosurgery, Erciyes University Medical School, Kayseri, Turkey
| | - Fatih Tanrıverdi
- Department of Endocrinology, Erciyes University Medical School, Kayseri, Turkey
| | - Kursad Unluhizarci
- Department of Endocrinology, Erciyes University Medical School, Kayseri, Turkey
| | - Minoo Rassoulzadegan
- Betul-Ziya Eren Genome and Stem Cell Center, Erciyes University, Kayseri, Turkey
- Université Côte d'Azur, CNRS, Inserm, Nice, France
| | - Fahrettin Kelestimur
- Department of Endocrinology, Yeditepe University Medical School, Istanbul, Turkey
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Faulkner MB, Rizk M, Bazzi Z, Dysko RC, Zhang Z. Sex-Specific Effects of Buprenorphine on Endoplasmic Reticulum Stress, Abnormal Protein Accumulation, and Cell Loss After Pediatric Mild Traumatic Brain Injury in Mice. Neurotrauma Rep 2023; 4:573-585. [PMID: 37752926 PMCID: PMC10518695 DOI: 10.1089/neur.2023.0051] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023] Open
Abstract
Traumatic brain injury (TBI) in children often leads to poor developmental outcomes attributable to progressive cell loss caused by secondary injuries, including endoplasmic reticulum (ER) stress. Buprenorphine (BPN) is commonly used in children for pain management; however, the effects of BPN on ER stress in the pediatric population are still inconclusive. This study investigated the sex-specific effects of BPN on ER stress, abnormal protein accumulation, and cell loss in a mouse impact acceleration model of pediatric TBI. On post-natal day 20-21 (P20-21), male and female littermates were randomized into sham, TBI + saline and TBI + BPN groups. BPN (0.075 mg/kg) was administered to TBI + BPN mice at 30 min after injury and then every 6-12 h for 2 days. The impact of BPN was evaluated at 1, 3, and 7 days post-injury. We found that TBI induced more prominent ER stress pathway activation at 1 and 3 days post-injury in males, compared to females, whereas abnormal protein accumulation and cell loss were more severe in females at 7 days post-injury, compared with males. Although BPN partially ameliorated abnormal protein accumulation and cell loss in both males and females, BPN only decreased ER stress pathway activation in males, not in females. In conclusion, BPN exhibits sex-specific effects on ER stress, abnormal protein accumulation, and cell loss in a time-dependent manner at the acute phase after pediatric TBI, which provides the rationale to assess the potential effects of BPN on long-term outcomes after pediatric TBI in both males and females.
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Affiliation(s)
- Megan B. Faulkner
- Department of Natural Sciences, University of Michigan–Dearborn, Dearborn, Michigan, USA
| | - Mariam Rizk
- Department of Natural Sciences, University of Michigan–Dearborn, Dearborn, Michigan, USA
| | - Zahraa Bazzi
- Department of Natural Sciences, University of Michigan–Dearborn, Dearborn, Michigan, USA
| | - Robert C. Dysko
- Unit for Laboratory Animal Medicine, University of Michigan–Ann Arbor, Ann Arbor, Michigan, USA
| | - Zhi Zhang
- Department of Natural Sciences, University of Michigan–Dearborn, Dearborn, Michigan, USA
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Ryu J, Jeizan P, Ahmed S, Ehsan S, Jose J, Regan S, Gorse K, Kelliher C, Lafrenaye A. Post-Injury Buprenorphine Administration Is Associated with Long-Term Region-Specific Glial Alterations in Rats. Pharmaceutics 2022; 14:2068. [PMID: 36297504 PMCID: PMC9607339 DOI: 10.3390/pharmaceutics14102068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/16/2022] [Accepted: 09/25/2022] [Indexed: 12/02/2022] Open
Abstract
Traumatic brain injury (TBI) is a major leading cause of death and disability. While previous studies regarding focal pathologies following TBI have been done, there is a lack of information concerning the role of analgesics and their influences on injury pathology. Buprenorphine (Bup), an opioid analgesic, is a commonly used analgesic in experimental TBI models. Our previous studies investigated the acute effects of Buprenorphine-sustained release-Lab (Bup-SR-Lab) on diffuse neuronal/glial pathology, neuroinflammation, cell damage, and systemic physiology. The current study investigated the longer-term chronic outcomes of Bup-SR-Lab treatment at 4 weeks following TBI utilizing a central fluid percussion injury (cFPI) model in adult male rats. Histological assessments of physiological changes, neuronal damage, cortical and thalamic cytokine expression, microglial and astrocyte morphological changes, and myelin alterations were done, as we had done in our acute study. In the current study the Whisker Nuisance Task (WNT) was also performed pre- and 4w post-injury to assess changes in somatosensory sensitivity following saline or Bup-SR-Lab treatment. Bup-SR-Lab treatment had no impact on overall physiology or neuronal damage at 4w post-injury regardless of region or injury, nor did it have any significant effects on somatosensory sensitivity. However, greater IL-4 cytokine expression with Bup-SR-Lab treatment was observed compared to saline treated animals. Microglia and astrocytes also demonstrated region-specific morphological alterations associated with Bup-SR-Lab treatment, in which cortical microglia and thalamic astrocytes were particularly vulnerable to Bup-mediated changes. There were discernable injury-specific and region-specific differences regarding myelin integrity and changes in specific myelin basic protein (MBP) isoform expression following Bup-SR-Lab treatment. This study indicates that use of Bup-SR-Lab could impact TBI-induced glial alterations in a region-specific manner 4w following diffuse brain injury.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Audrey Lafrenaye
- Department of Anatomy and Neurobiology, Virginia Commonwealth University, Richmond, VA 23298, USA
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