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Jia X, Liao N, Yao Y, Guo X, Chen K, Shi P. Dynamic evolution of bone marrow adipocyte in B cell acute lymphoblastic leukemia: insights from diagnosis to post-chemotherapy. Cancer Biol Ther 2024; 25:2323765. [PMID: 38465622 PMCID: PMC10936623 DOI: 10.1080/15384047.2024.2323765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 02/22/2024] [Indexed: 03/12/2024] Open
Abstract
Adipocyte is a unique and versatile component of bone marrow microenvironment (BMM). However, the dynamic evolution of Bone Marrow (BM) adipocytes from the diagnosis of B cell Acute Lymphoblastic Leukemia (B-ALL) to the post-treatment state, and how they affect the progression of leukemia, remains inadequately explicated. Primary patient-derived xenograft models (PDXs) and stromal cell co-culture system are employed in this study. We show that the dynamic evolution of BM adipocytes from initial diagnosis of B-ALL to the post-chemotherapy phase, transitioning from cellular depletion in the initial leukemia niche to a fully restored state upon remission. Increased BM adipocytes retards engraftment of B-ALL cells in PDX models and inhibits cells growth of B-ALL in vitro. Mechanistically, the proliferation arrest of B-ALL cells in the context of adipocytes-enrichment niche, might attribute to the presence of adiponectin secreted by adipocytes themselves and the absence of cytokines secreted by mesenchymal stem cell (MSCs). In summary, our findings offer a novel perspective for further in-depth understanding of the dynamic balance between BMM and B-ALL.
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Affiliation(s)
- Xi Jia
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, P. R. China
| | - Naying Liao
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, P. R. China
| | - Yunqian Yao
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, P. R. China
| | - Xutao Guo
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, P. R. China
| | - Kai Chen
- Department of Radiotherapy, Cancer Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - Pengcheng Shi
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, P. R. China
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Williams LJ, Agustini B, Stuart AL, Pasco JA, Hodge JM, Samarasinghe RM, Bjerkeset O, Quirk SE, Koivumaa-Honkanen H, Honkanen R, Heikkinen J, Berk M. Lithium use and bone health in women with bipolar disorder: A cross-sectional study. Acta Psychiatr Scand 2024; 149:332-339. [PMID: 38240178 DOI: 10.1111/acps.13660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 01/06/2024] [Indexed: 03/02/2024]
Abstract
INTRODUCTION Several psychiatric disorders and medications used to treat them appear to be independently associated with skeletal deficits. As there is increasing evidence that lithium possesses skeletal protective properties, we aimed to investigate the association between lithium use and bone health in a group of women with bipolar disorder. METHOD Women with bipolar disorder (n = 117, 20+ years) were recruited from south-eastern Australia. Bipolar disorder was confirmed using a clinical interview (SCID-I/NP). Bone mineral density (BMD; g/cm2 ) was measured at the spine, hip and total body using dual-energy x-ray absorptiometry and low bone mass determined by BMD T-score of <-1.0. Weight and height were measured, socioeconomic status (SES) determined and information on medication use and lifestyle factors self-reported. Linear and logistic regression were used to test associations between lithium and (i) BMD and (ii) low bone mass, respectively. RESULTS Thirty-five (29.9%) women reported current lithium use. Lithium users and non-users differed in regard to SES and BMD; otherwise, groups were similar. After adjustments, mean BMD among lithium users was 5.1% greater at the spine (1.275 [95% CI 1.229-1.321] vs. 1.214 [1.183-1.244] g/cm2 , p = 0.03), 4.2% greater at the total hip (0.979 [0.942-1.016] vs. 0.938 [0.910-0.966] g/cm2 , p = 0.03) and 2.2% greater at the total body (1.176 [1.148-1.205] vs. 1.150 [1.129-1.171] g/cm2 , p = 0.08) compared to participants not receiving lithium. Lithium users were also less likely to have low bone mass (22.9% vs. 43.9%, p = 0.031). Associations persisted after adjustment for confounders. CONCLUSION These data suggest lithium is associated with greater BMD and reduced risk of low bone mass in women with bipolar disorder. Research into the underlying mechanisms is warranted.
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Affiliation(s)
- Lana J Williams
- Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, Victoria, Australia
- Barwon Health, University Hospital Geelong, Geelong, Victoria, Australia
| | - Bruno Agustini
- Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, Victoria, Australia
| | - Amanda L Stuart
- Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, Victoria, Australia
| | - Julie A Pasco
- Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, Victoria, Australia
- Barwon Health, University Hospital Geelong, Geelong, Victoria, Australia
- Department of Medicine-Western Health, The University of Melbourne, St Albans, Victoria, Australia
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Jason M Hodge
- Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, Victoria, Australia
- Barwon Health, University Hospital Geelong, Geelong, Victoria, Australia
| | - Rasika M Samarasinghe
- Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, Victoria, Australia
| | - Ottar Bjerkeset
- Faculty of Nursing and Health Sciences, Nord University, Levanger, Norway
| | - Shae E Quirk
- Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, Victoria, Australia
| | - Heli Koivumaa-Honkanen
- Institute of Clinical Medicine, Psychiatry, University of Eastern Finland, Kuopio, Finland
- Institute of Clinical Medicine, Kuopio Musculoskeletal Research Unit, University of Eastern Finland, Kuopio, Finland
| | - Risto Honkanen
- Institute of Clinical Medicine, Psychiatry, University of Eastern Finland, Kuopio, Finland
- Institute of Clinical Medicine, Kuopio Musculoskeletal Research Unit, University of Eastern Finland, Kuopio, Finland
| | - Jeremi Heikkinen
- Institute of Clinical Medicine, Psychiatry, University of Eastern Finland, Kuopio, Finland
- Institute of Clinical Medicine, Kuopio Musculoskeletal Research Unit, University of Eastern Finland, Kuopio, Finland
| | - Michael Berk
- Institute for Mental and Physical Health and Clinical Translation, School of Medicine, Deakin University, Geelong, Victoria, Australia
- Barwon Health, University Hospital Geelong, Geelong, Victoria, Australia
- Florey Institute for Neuroscience and Mental Health, University of Melbourne, Parkville, Victoria, Australia
- Department of Psychiatry, University of Melbourne, Parkville, Victoria, Australia
- Orygen, National Centre of Excellence in Youth Mental Health, Parkville, Victoria, Australia
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Kim H, Kang MJ, Baek JK, Lee JK, Choi EA, Yun BH, Kim EH, Seo SK. Relationship between menopausal hormone therapy and incidence of fractures in postmenopausal women. Climacteric 2024; 27:165-170. [PMID: 37947171 DOI: 10.1080/13697137.2023.2273528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 10/15/2023] [Indexed: 11/12/2023]
Abstract
OBJECTIVE Long-term protective effects of menopausal hormone therapy (MHT) at fractures with different doses and components are controversial. We analyzed the effect of MHT on the incidence of spine and femur fractures according to MHT type, age at commencement, duration and dose of hormones in Korean women. METHOD This retrospective study evaluated propensity score-matched patients with MHT from the Korean National Health Insurance Service database. Among women aged ≥50 years with menopause between 2004 and 2007, spine and femur fracture incidence until 2017 was analyzed in 36,446 women who had received MHT for >1 year. Estrogen-progesterone therapy (EPT), estrogen-only therapy (ET) or tibolone therapy was conducted. RESULTS EPT significantly lowered the incidence of spine and femur fractures with a conventional dose, but not with a low dose. Tibolone significantly decreased the incidence of spine fractures in women aged 50-59 years when used for >5 years, and the incidence of femur fractures in women older than 60 years when used for >3 years. ET significantly lowered the risk of femur fractures when estradiol was used for >5 years. CONCLUSION In menopausal women, all MHT including conventional-dose EPT, ET and tibolone tended to lower the incidence of fractures. The effects, however, varied with the type of fracture and type of MHT.
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Affiliation(s)
- Heeyon Kim
- Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Min Jin Kang
- Department of Health Insurance Research, National Health Insurance Service, Ilsan Hospital, Goyang, Republic of Korea
- Department of Epidemiology and Biostatistics, Graduate School of Public Health, Seoul National University, Seoul, Republic of Korea
| | - Jin Kyung Baek
- Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jae Kyung Lee
- Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Eun A Choi
- Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Bo Hyun Yun
- Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Eui Hyeok Kim
- Department of Obstetrics and Gynecology, Ilsan Cha Hospital, Goyang, Republic of Korea
| | - Seok Kyo Seo
- Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul, Republic of Korea
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Jordan RL, Gottleib KA, Stevenson V. Progressive dyspnea with chronic nasal discharge in a Percheron yearling colt. J Am Vet Med Assoc 2024; 262:552-554. [PMID: 38183766 DOI: 10.2460/javma.23.07.0386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 12/13/2023] [Indexed: 01/08/2024]
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Elston DM. Eleven blade for easier fenestration of outer table of bone. J Am Acad Dermatol 2024; 90:e119-e120. [PMID: 37121477 DOI: 10.1016/j.jaad.2023.04.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/19/2023] [Accepted: 04/20/2023] [Indexed: 05/02/2023]
Affiliation(s)
- Dirk M Elston
- Department of Dermatology and Dermatologic Surgery, Medical University of South Carolina, Charleston, South Carolina.
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Marques-Carvalho A, Silva B, Pereira FB, Kim HN, Almeida M, Sardão VA. Oestradiol and osteoclast differentiation: Effects on p53 and mitochondrial metabolism. Eur J Clin Invest 2024:e14195. [PMID: 38519718 DOI: 10.1111/eci.14195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 02/05/2024] [Accepted: 02/24/2024] [Indexed: 03/25/2024]
Abstract
BACKGROUND Oestrogen deficiency increases bone resorption, contributing to osteoporosis development. Yet, the mechanisms mediating the effects of oestrogen on osteoclasts remain unclear. This study aimed to elucidate the early metabolic alteration induced by RANKL, the essential cytokine in osteoclastogenesis and 17-beta-oestradiol (E2) on osteoclast progenitor cells, using RAW 264.7 macrophage cell line and primary bone marrow-derived macrophages as biological models. RESULTS This research demonstrated that, in osteoclast precursors, RANKL stimulates complex I activity, oxidative phosphorylation (OXPHOS) and mitochondria-derived ATP production as early as 3 h of exposure. This effect on mitochondrial bioenergetics is associated with an increased capacity to oxidize TCA cycle substrates, fatty acids and amino acids. E2 inhibited all effects of RANKL on mitochondria metabolism. In the presence of RANKL, E2 also decreased cell number and stimulated the mitochondrial-mediated apoptotic pathway, detected as early as 3 h. Further, the pro-apoptotic effects of E2 during osteoclast differentiation were associated with an accumulation of p392S-p53 in mitochondria. CONCLUSIONS These findings elucidate the early effects of RANKL on osteoclast progenitor metabolism and suggest novel p53-mediated mechanisms that contribute to postmenopausal osteoporosis.
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Affiliation(s)
- Adriana Marques-Carvalho
- CNC-Center for Neuroscience and Cell Biology, CIBB - Centre for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
- PhD Programme in Experimental Biology and Biomedicine (PDBEB), Institute for Interdisciplinary Research (IIIUC), University of Coimbra, Coimbra, Portugal
| | - Beatriz Silva
- Centre for Informatics and Systems, University of Coimbra, Coimbra, Portugal
| | - Francisco B Pereira
- Centre for Informatics and Systems, University of Coimbra, Coimbra, Portugal
- Polytechnic Institute of Coimbra, Coimbra Institute of Engineering, Coimbra, Portugal
| | - Ha-Neui Kim
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences, Little Rock, USA
| | - Maria Almeida
- Division of Endocrinology and Metabolism, Center for Osteoporosis and Metabolic Bone Diseases, University of Arkansas for Medical Sciences, Little Rock, USA
- Department of Orthopedic Surgery, University of Arkansas for Medical Sciences, Little Rock, USA
| | - Vilma A Sardão
- CNC-Center for Neuroscience and Cell Biology, CIBB - Centre for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
- Multidisciplinary Institute of Aging (MIA-Portugal), University of Coimbra, Portugal
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Liu X, Zhang F, Qiu Y, Yin Y, Lv X, Gao M, Shen H, Liu L. Reconstruction of the large frontal sinus defect with the small supporting bone pieces in neurosurgical anterior skull base surgery. World Neurosurg 2024:S1878-8750(24)00464-9. [PMID: 38521218 DOI: 10.1016/j.wneu.2024.03.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 03/15/2024] [Indexed: 03/25/2024]
Abstract
BACKGROUND Large defects of frontal sinus (FS) might be difficult to manage effectively. Mismanagement of the large defects could lead to serious postoperative complications in anterior skull base surgery. This study introduces a simple and reliable method applying small supporting bone pieces to cover or insert into large FS defects, then the large defect of FS was transformed into the some small defects which can be sealed by bone wax successfully. METHODS Eleven patients underwent anterior skull base surgery for lesions or aneurysms, with the reconstruction of large FS defects by small supporting bone pieces. During craniotomy, mild violations of the FS mucosa were spared and sterilized, while severe violations required mucosal removal. Small supporting bone pieces were obtained from the inner plate of the bone flap, and carefully covered or inserted into the large defects. The large defects were transformed into some small ones, which could be sealed effectively by bone wax. Demographic, intraoperative, and postoperative complication data were collected. RESULTS Four patients had severe mucosal violations requiring removal, while seven had mild violations sparing the mucosa. All underwent effective reconstruction with small supporting bone pieces. Median follow-up was 6 months. All cases showed effective FS morphology reconstruction, with no FS-related complications. CONCLUSION Applying the small supporting bone pieces for large FS defect reconstruction can restore the FS morphology, preserve physiological function, and avoid postoperative complications.
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Affiliation(s)
- Xi Liu
- Department of Neurosurgery, the First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Fan Zhang
- Department of Anesthesiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yankai Qiu
- Department of Neurosurgery, the First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yibo Yin
- Department of Neurosurgery, the First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xing Lv
- Department of Neurosurgery, the First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Mengyu Gao
- Department of Cardiology, Fourth Hospital of Harbin, Harbin, China
| | - Hong Shen
- Department of Neurosurgery, the First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Li Liu
- Department of Neurosurgery, the First Affiliated Hospital of Harbin Medical University, Harbin, China.
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Gul MA, Kurt N, Ozgeris FB, Yuce N, Kocak OF, Parlak E. C-terminal cross-linking telopeptide levels in COVID-19 patients: A prospective case-control study. ADV CLIN EXP MED 2024; 33:0-0. [PMID: 38515258 DOI: 10.17219/acem/185254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 02/22/2024] [Indexed: 03/23/2024]
Abstract
BACKGROUND Coronavirus disease 19 (COVID-19) is a viral infection mediated by coronavirus-2 that causes severe acute respiratory syndrome (SARS-CoV-2). The disease may affect biochemical parameters and electrolytes. C-terminal cross-linking telopeptide (CTX-I) is released during mature bone resorption and is a biomarker for predicting bone resorption. OBJECTIVES As the pandemic progressed, understanding the effects of COVID-19 disease remained critical. Inflammatory responses triggered by the virus can result in a bone metabolism regulation imbalance. As such, this study aimed to analyze serum levels of CTX-I, calcium (CA), phosphorus (P), magnesium (Mg), C-reactive protein (CRP), and alkaline phosphatase (ALP) in COVID-19 patients to investigate the relationship between bone resorption and the disease. MATERIAL AND METHODS The study included 56 individuals with COVID-19 (divided into mild, moderate and severe subgroups depending on disease severity) and 25 healthy adults as a control group. Serum CTX-I concentrations were measured with enzyme-linked immunosorbent assay (ELISA). In addition, CRP, Ca, Mg, P, and ALP levels were measured using an automated clinical chemistry analyzer. RESULTS Serum CTX-I levels were significantly higher in COVID-19 patients than in the control group (p < 0.05). Furthermore, a positive weak relationship was detected between CRP and CTX-I (r = 0.303, p < 0.05). CONCLUSIONS Increased serum CTX-I levels in the patient group caused COVID-19-driven bone degradation, though serum CTX-I levels did not differ according to disease severity.
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Affiliation(s)
- Mehmet Ali Gul
- Department of Medical Biochemistry, Faculty of Medicine, Amasya University, Turkey
| | - Nezahat Kurt
- Department of Medical Biochemistry, Faculty of Medicine, Erzincan Binali Yildirim University, Turkey
| | - Fatma Betul Ozgeris
- Department of Nutrition and Dietetics, Faculty of Healthy Sciences, Ataturk University, Erzurum, Turkey
| | - Neslihan Yuce
- Department of Medical Biochemistry, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Omer Faruk Kocak
- Department of Chemical Technology, Erzurum Vocational Training College, Ataturk University, Turkey
| | - Emine Parlak
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
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Christensen D, Belair JA, BasuMallick A, Brown SA, Klein M, Jiang W. Synchronous Low-Grade Central Osteosarcoma and Ewing Sarcoma: A Rare Case Report. Int J Surg Pathol 2024:10668969241239675. [PMID: 38504661 DOI: 10.1177/10668969241239675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
A 23-year-old female patient presented with radicular back pain, perineal numbness, and urinary retention. The patient was diagnosed with cauda equina syndrome and magnetic resonance imaging (MRI) of the spine revealed an enhancing osseous lumbar lesion causing severe central stenosis. A core needle biopsy of the lumbar spine showed microscopic features compatible with a small round blue cell tumor. CD99 and FLI1 were positive in the tumor cells. Next-generation sequencing demonstrated a EWSR1::FLI1 fusion. Given these findings, the spine lesion was diagnosed as Ewing sarcoma. The patient underwent surgical decompression of L2. On further workup, an MRI revealed an ill-defined enhancing mass of the right distal femur. This area was biopsied, demonstrating a fibro-osseous lesion with osteoblast proliferation containing nuclear atypia, low mitotic activity, and SATB2 positivity, diagnosed as low-grade central osteosarcoma (LGCOS). The patient underwent resection, which showed a classic LGCOS by histomorphology. Although fluorescence in-situ hybridization study for MDM2 gene amplification was negative, the overall findings are most consistent with LGCOS. These neoplasms are considered to be synchronous due to the presentation of each entity within 6 months. Considering the aggregate yearly incidence of Ewing sarcoma (approximately 1 case per 750 000 per year) and LGCOS (approximately 1 case per 10 million per year), the aggregate yearly probability of developing both of these genetically unrelated tumors in a single individual is 1 per 7.5 trillion per year, and it is likely such an event has never happened in the past.
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Affiliation(s)
- Daniel Christensen
- Department of Pathology and Genomic Medicine, Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Jeffrey A Belair
- Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Atrayee BasuMallick
- Department of Medical Oncology, Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Scot A Brown
- Department of Orthopaedic Oncology, Rothman Orthopaedics, Philadelphia, PA, USA
| | - Michael Klein
- Department of Pathology, Hospital for Special Surgery, New York, NY, USA
- Department of Pathology and Laboratory Medicine, Weill Cornell College of Medicine, New York, NY, USA
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Wei Jiang
- Department of Pathology and Genomic Medicine, Thomas Jefferson University Hospital, Philadelphia, PA, USA
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Yamamoto A, Yamada E, Ibara T, Nihey F, Inai T, Tsukamoto K, Waki T, Yoshii T, Kobayashi Y, Nakahara K, Fujita K. Using In-Shoe Inertial Measurement Unit Sensors to Understand Daily-Life Gait Characteristics in Patients With Distal Radius Fractures During 6 Months of Recovery: Cross-Sectional Study. JMIR Mhealth Uhealth 2024; 12:e55178. [PMID: 38506913 DOI: 10.2196/55178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/29/2024] [Accepted: 02/26/2024] [Indexed: 03/21/2024] Open
Abstract
BACKGROUND A distal radius fracture (DRF) is a common initial fragility fracture among women in their early postmenopausal period, which is associated with an increased risk of subsequent fractures. Gait assessments are valuable for evaluating fracture risk; inertial measurement units (IMUs) have been widely used to assess gait under free-living conditions. However, little is known about long-term changes in patients with DRF, especially concerning daily-life gait. We hypothesized that, in the long term, the daily-life gait parameters in patients with DRF could enable us to reveal future risk factors for falls and fractures. OBJECTIVE This study assessed the spatiotemporal characteristics of patients with DRF at 4 weeks and 6 months of recovery. METHODS We recruited 16 women in their postmenopausal period with DRF as their first fragility fracture (mean age 62.3, SD 7.0 years) and 28 matched healthy controls (mean age 65.6, SD 8.0 years). Daily-life gait assessments and physical assessments, such as hand grip strength (HGS), were performed using an in-shoe IMU sensor. Participants' results were compared with those of the control group, and their recovery was assessed for 6 months after the fracture. RESULTS In the fracture group, at 4 weeks after DRF, lower foot height in the swing phase (P=.049) and higher variability of stride length (P=.03) were observed, which improved gradually. However, the dorsiflexion angle in the fracture group tended to be lower consistently during 6 months (at 4 weeks: P=.06; during 6 months: P=.07). As for the physical assessments, the fracture group showed lower HGS at all time points (at 4 weeks: P<.001; during 6 months: P=.04), despite significant improvement at 6 months (P<.001). CONCLUSIONS With an in-shoe IMU sensor, we discovered the recovery of spatiotemporal gait characteristics 6 months after DRF surgery without the participants' awareness. The consistently unchanged dorsiflexion angle in the swing phase and lower HGS could be associated with fracture risk, implying the high clinical importance of appropriate interventions for patients with DRF to prevent future fractures. These results could be applied to a screening tool for evaluating the risk of falls and fractures, which may contribute to constructing a new health care system using wearable devices in the near future.
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Affiliation(s)
- Akiko Yamamoto
- Department of Orthopaedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Eriku Yamada
- Department of Orthopaedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takuya Ibara
- Department of Functional Joint Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Fumiyuki Nihey
- Biometrics Research Laboratories, NEC Corporation, Chiba, Japan
| | - Takuma Inai
- Biomechanics and Exercise Physiology Research Group, Health and Medical Research Institute, Department of Life Science and Technology, National Institute of Advanced Industrial Science and Technology, Kagawa, Japan
| | - Kazuya Tsukamoto
- Department of Orthopaedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Tomohiko Waki
- Department of Orthopaedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Toshitaka Yoshii
- Department of Orthopaedic and Spinal Surgery, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoshiyuki Kobayashi
- Human Augmentation Research Center, National Institute of Advanced Industrial Science and Technology, Tokyo, Japan
| | | | - Koji Fujita
- Department of Functional Joint Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
- Division of Medical Design Innovations, Open Innovation Center, Institute of Research Innovation, Tokyo Medical and Dental University, Tokyo, Japan
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Pinzur MS, Schiff AP, Hamid K, LeDuc R. Preliminary Experience With Commercially Available Trabecular Metal Tibial Cones Combined With a Retrograde Locked Intramedullary Nail for Bony Defects in Tibiotalocalcaneal Arthrodesis. Foot Ankle Spec 2024:19386400241236664. [PMID: 38501276 DOI: 10.1177/19386400241236664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Critical sized bone defects in the ankle are becoming increasingly more common in patients undergoing limb reconstruction with tibiotalocalcaneal arthrodesis. Bulk allografts have not fared well over time. There have been scattered preliminary reports using custom spinal cages or 3D-printed Titanium Implants to address the critical bony defect; however, the cost of these devices is prohibitive in many clinical practice settings. The purpose of this investigation is to report the preliminary experience using a commercially available Trabecular Metal (Zimmer-Biomet) tibial metaphyseal cone combined with a retrograde locked intramedullary nail to address this challenging problem. Eight consecutive patients underwent tibiotalocalcaneal arthrodesis using a commercially available Trabecular Metal tibial metaphyseal cone combined with a retrograde locked intramedullary nail. Five developed bone loss secondary to neuropathic (Charcot) bony resorption and 3 underwent surgery for failed total ankle arthroplasty. All 8 patients eventually achieved clinical and radiographic healing and were able to ambulate with standard footwear. One patient developed a postoperative wound infection at the site of calcaneal locking screws, which resolved with debridement and parenteral antibiotic therapy. Critical bone defects about the ankle have successfully addressed with custom 3D titanium implants. This small series suggests that similar clinical outcomes can be achieved with the use of a commercially available porous tantalum metaphyseal spacer borrowed from our arthroplasty colleagues, combined with the use of a retrograde locked intramedullary nail.Levels of Evidence: Level 4: Retrospective case series.
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Affiliation(s)
- Michael S Pinzur
- Department of Orthopaedic Surgery & Rehabilitation, Loyola University Health System and Loyola University Medical School, Maywood, Illinois
| | - Adam P Schiff
- Loyola University Health System and Loyola University Medical School, Maywood, Illinois
| | - Kamran Hamid
- Loyola University Health System and Loyola University Medical School, Maywood, Illinois
| | - Ryan LeDuc
- Loyola University Health System and Loyola University Medical School, Maywood, Illinois
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12
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Houssaye A, Etienne C, Gallic Y, Rocchia F, Chaves-Jacob J. How can research on modern and fossil bones help us build more resistant columns? Bioinspir Biomim 2024; 19:036007. [PMID: 38452389 DOI: 10.1088/1748-3190/ad311f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 03/07/2024] [Indexed: 03/09/2024]
Abstract
Bone is an economical material. Indeed, as moving a heavy skeleton is energetically costly, the vertebrate skeleton is adapted to maximise resistance to the stresses imposed with a minimum amount of material, so that bone tissue is deposited where it is needed. Using bone as a source of inspiration should therefore reduce the manufacturing cost (both financial and ecological) and increase the strength (and lifespan) of bioinspired (BI) structures. This study proposes to investigate which adaptive features of the outer shape and inner structure of bone, related to compressive strength, could be used to build BI support structures. To do so, we explain the choice of the bones to be analysed and present the results of the biomechanical analyses (finite element analysis) carried out on virtual models built from the structures of the different bone models and of the mechanical tests carried out on 3D-printed versions of these models. The compressive strength of these direct bone BI columns was compared with each other, and with those of a conventional filled cylindrical column, and of a cylindrical column whose internal structure is BI from the radius of the white rhinoceros. The results of our comparative analyses highlight that the shape of long bones is less effective than a cylinder in resisting compression but underline the relevance in designing BI cylindrical columns with heterogeneous structures inspired by the radius of the white rhinoceros and the tibia of the Asian elephant, and raise the interest in studying the fossil record using the radius of the giant rhinocerotoidParaceratherium.
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Affiliation(s)
- A Houssaye
- Département Adaptations du Vivant, UMR 7179 CNRS/Muséum National d'Histoire Naturelle, 57 rue Cuvier CP-55, 75005 Paris, France
| | - C Etienne
- Département Adaptations du Vivant, UMR 7179 CNRS/Muséum National d'Histoire Naturelle, 57 rue Cuvier CP-55, 75005 Paris, France
| | - Y Gallic
- Département Adaptations du Vivant, UMR 7179 CNRS/Muséum National d'Histoire Naturelle, 57 rue Cuvier CP-55, 75005 Paris, France
| | - F Rocchia
- Aix Marseille Université, CNRS, ISM, Inst Mouvement Sci, UMR, 7287 Marseille, France
| | - J Chaves-Jacob
- Aix Marseille Université, CNRS, ISM, Inst Mouvement Sci, UMR, 7287 Marseille, France
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13
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Andrique C, Bonnet AL, Dang J, Lesieur J, Krautzberger AM, Baroukh B, Torrens C, Sadoine J, Schmitt A, Rochefort GY, Bardet C, Six I, Houillier P, Tharaux PL, Schrewe H, Gaucher C, Chaussain C. Vasorin as an actor of bone turnover? J Cell Physiol 2024. [PMID: 38504496 DOI: 10.1002/jcp.31257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 03/04/2024] [Accepted: 03/07/2024] [Indexed: 03/21/2024]
Abstract
Bone diseases are increasing with aging populations and it is important to identify clues to develop innovative treatments. Vasn, which encodes vasorin (Vasn), a transmembrane protein involved in the pathophysiology of several organs, is expressed during the development in intramembranous and endochondral ossification zones. Here, we studied the impact of Vasn deletion on the osteoblast and osteoclast dialog through a cell Coculture model. In addition, we explored the bone phenotype of Vasn KO mice, either constitutive or tamoxifen-inducible, or with an osteoclast-specific deletion. First, we show that both osteoblasts and osteoclasts express Vasn. Second, we report that, in both KO mouse models but not in osteoclast-targeted KO mice, Vasn deficiency was associated with an osteopenic bone phenotype, due to an imbalance in favor of osteoclastic resorption. Finally, through the Coculture experiments, we identify a dysregulation of the Wnt/β-catenin pathway together with an increase in RANKL release by osteoblasts, which led to an enhanced osteoclast activity. This study unravels a direct role of Vasn in bone turnover, introducing a new biomarker or potential therapeutic target for bone pathologies.
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Affiliation(s)
| | - Anne Laure Bonnet
- Université Paris Cité, Montrouge, France
- AP-HP, Services de médecine bucco-dentaire: GH Nord - Université Paris Cité, GH Sorbonne Université, GH Henri Mondor, Paris, France
| | - Julien Dang
- Paris Cardiovascular Research Centre - PARCC, Université Paris Cité, Inserm, Paris, France
| | | | - A Michaela Krautzberger
- Department of Developmental Genetics, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | | | | | | | - Alain Schmitt
- Université Paris Cité, Institut Cochin, INSERM U1016, CNRS UMR8104, Paris, France
| | | | | | - Isabelle Six
- URP 7517 UPJV, Pathophysiological Mechanisms and Consequences of Cardiovascular Calcifications (MP3CV), Jules Verne University of Picardie, Amiens, France
| | - Pascal Houillier
- Centre de Recherche des Cordeliers, INSERM U1138, Sorbonne Université, Université Paris Cité, Paris, France
- AP-HP, Explorations fonctionnelles rénales, Physiologie, Hôpital européen Georges-Pompidou, Paris, France
| | - Pierre Louis Tharaux
- Paris Cardiovascular Research Centre - PARCC, Université Paris Cité, Inserm, Paris, France
| | - Heinrich Schrewe
- Department of Developmental Genetics, Max Planck Institute for Molecular Genetics, Berlin, Germany
| | - Celine Gaucher
- Université Paris Cité, Montrouge, France
- AP-HP, Services de médecine bucco-dentaire: GH Nord - Université Paris Cité, GH Sorbonne Université, GH Henri Mondor, Paris, France
| | - Catherine Chaussain
- Université Paris Cité, Montrouge, France
- AP-HP, Services de médecine bucco-dentaire: GH Nord - Université Paris Cité, GH Sorbonne Université, GH Henri Mondor, Paris, France
- APHP, Centre de reference des maladies rares du phosphate et du calcium (filière OSCAR, ERN BOND), Hôpital Bretonneau, Paris, France
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14
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Fois MG, van Griensven M, Giselbrecht S, Habibović P, Truckenmüller RK, Tahmasebi Birgani ZN. Mini- bones: miniaturized bone in vitro models. Trends Biotechnol 2024:S0167-7799(24)00004-0. [PMID: 38493050 DOI: 10.1016/j.tibtech.2024.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 03/18/2024]
Abstract
In bone tissue engineering (TE) and regeneration, miniaturized, (sub)millimeter-sized bone models have become a popular trend since they bring about physiological biomimicry, precise orchestration of concurrent stimuli, and compatibility with high-throughput setups and high-content imaging. They also allow efficient use of cells, reagents, materials, and energy. In this review, we describe the state of the art of miniaturized in vitro bone models, or 'mini-bones', describing these models based on their characteristics of (multi)cellularity and engineered extracellular matrix (ECM), and elaborating on miniaturization approaches and fabrication techniques. We analyze the performance of 'mini-bone' models according to their applications for studying basic bone biology or as regeneration models, disease models, and screening platforms, and provide an outlook on future trends, challenges, and opportunities.
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Affiliation(s)
- Maria Gabriella Fois
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, PO Box 616, 6200, MD, Maastricht, The Netherlands
| | - Martijn van Griensven
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, PO Box 616, 6200, MD, Maastricht, The Netherlands
| | - Stefan Giselbrecht
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, PO Box 616, 6200, MD, Maastricht, The Netherlands
| | - Pamela Habibović
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, PO Box 616, 6200, MD, Maastricht, The Netherlands
| | - Roman K Truckenmüller
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, PO Box 616, 6200, MD, Maastricht, The Netherlands.
| | - Zeinab Niloofar Tahmasebi Birgani
- MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, PO Box 616, 6200, MD, Maastricht, The Netherlands.
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15
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Decoene I, Nasello G, Madeiro de Costa RF, Nilsson Hall G, Pastore A, Van Hoven I, Ribeiro Viseu S, Verfaillie C, Geris L, Luyten FP, Papantoniou I. Robotics-Driven Manufacturing of Cartilaginous Microtissues for Skeletal Tissue Engineering Applications. Stem Cells Transl Med 2024; 13:278-292. [PMID: 38217535 PMCID: PMC10940839 DOI: 10.1093/stcltm/szad091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 11/02/2023] [Indexed: 01/15/2024] Open
Abstract
Automated technologies are attractive for enhancing the robust manufacturing of tissue-engineered products for clinical translation. In this work, we present an automation strategy using a robotics platform for media changes, and imaging of cartilaginous microtissues cultured in static microwell platforms. We use an automated image analysis pipeline to extract microtissue displacements and morphological features as noninvasive quality attributes. As a result, empty microwells were identified with a 96% accuracy, and dice coefficient of 0.84 for segmentation. Design of experiment are used for the optimization of liquid handling parameters to minimize empty microwells during long-term differentiation protocols. We found no significant effect of aspiration or dispension speeds at and beyond manual speed. Instead, repeated media changes and time in culture were the driving force or microtissue displacements. As the ovine model is the preclinical model of choice for large skeletal defects, we used ovine periosteum-derived cells to form cartilage-intermediate microtissues. Increased expression of COL2A1 confirms chondrogenic differentiation and RUNX2 shows no osteogenic specification. Histological analysis shows an increased secretion of cartilaginous extracellular matrix and glycosaminoglycans in larger microtissues. Furthermore, microtissue-based implants are capable of forming mineralized tissues and bone after 4 weeks of ectopic implantation in nude mice. We demonstrate the development of an integrated bioprocess for culturing and manipulation of cartilaginous microtissues and anticipate the progressive substitution of manual operations with automated solutions for the manufacturing of microtissue-based living implants.
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Affiliation(s)
- Isaak Decoene
- Prometheus Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium
- Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Leuven
| | - Gabriele Nasello
- Prometheus Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium
- Biomechanics Research Unit, GIGA In Silico Medicine, GIGA institute, University ofLiège, Liège, Belgium
| | | | - Gabriella Nilsson Hall
- Prometheus Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium
- Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Leuven
| | - Angela Pastore
- Prometheus Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium
- Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Leuven
| | - Inge Van Hoven
- Prometheus Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium
- Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Leuven
| | - Samuel Ribeiro Viseu
- Prometheus Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium
- Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Leuven
| | - Catherine Verfaillie
- Department of Development and Regeneration, Stem Cell Biology and Embryology, KU Leuven, Leuven, Belgium
| | - Liesbet Geris
- Prometheus Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium
- Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Leuven
- Biomechanics Research Unit, GIGA In Silico Medicine, GIGA institute, University ofLiège, Liège, Belgium
| | - Frank P Luyten
- Prometheus Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium
- Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Leuven
| | - Ioannis Papantoniou
- Prometheus Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium
- Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Leuven
- Institute for Chemical Engineering Sciences, Foundationfor Research and Technology–Hellas, Patras, Greece
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16
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Ghosh YA, Xin H, Al Maruf A, Cheng K, Wise I, Burrows C, Gupta R, Cheung VKY, Wykes J, Leinkram D, Froggatt C, Lewin W, Kruse HV, Tomaskovic-Crook E, McKenzie DR, Crook J, Clark JR. Novel Sheep Model to Assess Critical-Sized Bone Regeneration with Periosteum for In Vivo Bioreactors. Tissue Eng Part C Methods 2024. [PMID: 38368556 DOI: 10.1089/ten.tec.2023.0345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2024] Open
Abstract
Considerable research is being undertaken to develop novel biomaterials-based approaches for surgical reconstruction of bone defects. This extends to three-dimensional (3D) printed materials that provide stable, structural, and functional support in vivo. However, few preclinical models can simulate in vivo human biological conditions for clinically relevant testing. In this study we describe a novel ovine model that allows evaluation of in vivo osteogenesis via contact with bone and/or periosteum interfaced with printed polymer bioreactors loaded with biomaterial bone substitutes. The infraspinous scapular region of 14 Dorset cross sheep was exposed. Vascularized periosteum was elevated either attached to the infraspinatus muscle or separately. In both cases, the periosteum was supplied by the periosteal branch of the circumflex scapular vessels. In eight sheep, a 3D printed 4-chambered polyetheretherketone bioreactor was wrapped circumferentially in vascularized periosteum. In 6 sheep, 12 double-sided 3D printed 2-chambered polyetherketone bioreactors were secured to the underlying bone allowing direct contact with the bone on one side and periosteum on the other. Our model enabled simultaneous testing of up to 24 (12 double-sided) 10 × 10 × 5 mm bioreactors per scapula in the flat contact approach or a single 40 × 10 mm four-chambered bioreactor per scapula using the periosteal wrap. De novo bone growth was evaluated using histological and radiological analysis. Of importance, the experimental model was well tolerated by the animals and provides a versatile approach for comparing the osteogenic potential of cambium on the bone surface and elevated with periosteum. Furthermore, the periosteal flaps were sufficiently large for encasing bioreactors containing biomaterial bone substitutes for applications such as segmental mandibular reconstruction.
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Affiliation(s)
- Yohaann A Ghosh
- Department of Head & Neck Surgery, Chris O'Brien Lifehouse, Camperdown, Australia
- Sydney Medical School, The University of Sydney, Camperdown, Australia
- School of Medicine & Dentistry, Griffith University, Gold Coast, Australia
| | - Hai Xin
- Department of Head & Neck Surgery, Chris O'Brien Lifehouse, Camperdown, Australia
- Sydney Medical School, The University of Sydney, Camperdown, Australia
| | - Abdullah Al Maruf
- Department of Head & Neck Surgery, Chris O'Brien Lifehouse, Camperdown, Australia
- Sydney Medical School, The University of Sydney, Camperdown, Australia
| | - Kai Cheng
- Department of Head & Neck Surgery, Chris O'Brien Lifehouse, Camperdown, Australia
- Royal Prince Alfred Institute of Academic Surgery, Sydney Local Health District, Australia
| | - Innes Wise
- Laboratory Animal Services, The University of Sydney, Camperdown, Australia
| | - Chris Burrows
- Laboratory Animal Services, The University of Sydney, Camperdown, Australia
| | - Ruta Gupta
- Department of Tissue Pathology and Diagnostic Oncology, Royal Prince Alfred Hospital, Camperdown, Australia
| | - Veronica Ka-Yan Cheung
- Department of Tissue Pathology and Diagnostic Oncology, Royal Prince Alfred Hospital, Camperdown, Australia
| | - James Wykes
- Department of Head & Neck Surgery, Chris O'Brien Lifehouse, Camperdown, Australia
- Sydney Medical School, The University of Sydney, Camperdown, Australia
| | - David Leinkram
- Department of Head & Neck Surgery, Chris O'Brien Lifehouse, Camperdown, Australia
| | - Catriona Froggatt
- Department of Head & Neck Surgery, Chris O'Brien Lifehouse, Camperdown, Australia
| | - Will Lewin
- Arto Hardy Family Biomedical Innovation Hub, Chris O'Brien Lifehouse, Camperdown, Australia
- Faculty of Medicine and Health, School of Medical Sciences, The University of Sydney, Camperdown, Australia
- Sarcoma and Surgical Research Centre, Chris O'Brien Lifehouse, Camperdown, Australia
| | - Hedi V Kruse
- Arto Hardy Family Biomedical Innovation Hub, Chris O'Brien Lifehouse, Camperdown, Australia
- Sarcoma and Surgical Research Centre, Chris O'Brien Lifehouse, Camperdown, Australia
- Faculty of Science, School of Physics, The University of Sydney, Camperdown, Australia
| | - Eva Tomaskovic-Crook
- Arto Hardy Family Biomedical Innovation Hub, Chris O'Brien Lifehouse, Camperdown, Australia
- Faculty of Medicine and Health, School of Medical Sciences, The University of Sydney, Camperdown, Australia
- Faculty of Science, School of Physics, The University of Sydney, Camperdown, Australia
| | - David R McKenzie
- Arto Hardy Family Biomedical Innovation Hub, Chris O'Brien Lifehouse, Camperdown, Australia
- Sarcoma and Surgical Research Centre, Chris O'Brien Lifehouse, Camperdown, Australia
- Faculty of Science, School of Physics, The University of Sydney, Camperdown, Australia
| | - Jeremy Crook
- Arto Hardy Family Biomedical Innovation Hub, Chris O'Brien Lifehouse, Camperdown, Australia
- Faculty of Medicine and Health, School of Medical Sciences, The University of Sydney, Camperdown, Australia
- Sarcoma and Surgical Research Centre, Chris O'Brien Lifehouse, Camperdown, Australia
- Faculty of Science, School of Physics, The University of Sydney, Camperdown, Australia
| | - Jonathan R Clark
- Department of Head & Neck Surgery, Chris O'Brien Lifehouse, Camperdown, Australia
- Sydney Medical School, The University of Sydney, Camperdown, Australia
- Royal Prince Alfred Institute of Academic Surgery, Sydney Local Health District, Australia
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17
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Griesbach JK, Schulte FA, Schädli GN, Rubert M, Müller R. Mechanoregulation analysis of bone formation in tissue engineered constructs requires a volumetric method using time-lapsed micro-computed tomography. Acta Biomater 2024:S1742-7061(24)00127-2. [PMID: 38492908 DOI: 10.1016/j.actbio.2024.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 02/09/2024] [Accepted: 03/07/2024] [Indexed: 03/18/2024]
Abstract
Bone can adapt its microstructure to mechanical loads through mechanoregulation of the (re)modeling process. This process has been investigated in vivo using time-lapsed micro-computed tomography (micro-CT) and micro-finite element (FE) analysis using surface-based methods, which are highly influenced by surface curvature. Consequently, when trying to investigate mechanoregulation in tissue engineered bone constructs, their concave surfaces make the detection of mechanoregulation impossible when using surface-based methods. In this study, we aimed at developing and applying a volumetric method to non-invasively quantify mechanoregulation of bone formation in tissue engineered bone constructs using micro-CT images and FE analysis. We first investigated hydroxyapatite scaffolds seeded with human mesenchymal stem cells that were incubated over 8 weeks with one mechanically loaded and one control group. Higher mechanoregulation of bone formation was measured in loaded samples with an area under the curve for the receiver operating curve (AUCformation) of 0.633-0.637 compared to non-loaded controls (AUCformation: 0.592-0.604) during culture in osteogenic medium (p<0.05). Furthermore, we applied the method to an in vivo mouse study investigating the effect of loading frequencies on bone adaptation. The volumetric method detected differences in mechanoregulation of bone formation between loading conditions (p<0.05). Mechanoregulation in bone formation was more pronounced (AUCformation: 0.609-0.642) compared to the surface-based method (AUCformation: 0.565-0.569, p<0.05). Our results show that mechanoregulation of formation in bone tissue engineered constructs takes place and its extent can be quantified with a volumetric mechanoregulation method using time-lapsed micro-CT and FE analysis. STATEMENT OF SIGNIFICANCE: Many efforts have been directed towards optimizing bone scaffolds for tissue growth. However, the impact of the scaffolds mechanical environment on bone growth is still poorly understood, requiring accurate assessment of its mechanoregulation. Existing surface-based methods were unable to detect mechanoregulation in tissue engineered constructs, due to predominantly concave surfaces in scaffolds. We present a volumetric approach to enable the precise and non-invasive quantification and analysis of mechanoregulation in bone tissue engineered constructs by leveraging time-lapsed micro-CT imaging, image registration, and finite element analysis. The implications of this research extend to diverse experimental setups, encompassing culture conditions, and material optimization, and investigations into bone diseases, enabling a significant stride towards comprehensive advancements in bone tissue engineering and regenerative medicine.
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Affiliation(s)
- Julia K Griesbach
- Institute for Biomechanics, ETH Zürich, Gloriastrasse 37/39, 8006 Zürich, Switzerland
| | - Friederike A Schulte
- Institute for Biomechanics, ETH Zürich, Gloriastrasse 37/39, 8006 Zürich, Switzerland
| | - Gian Nutal Schädli
- Institute for Biomechanics, ETH Zürich, Gloriastrasse 37/39, 8006 Zürich, Switzerland
| | - Marina Rubert
- Institute for Biomechanics, ETH Zürich, Gloriastrasse 37/39, 8006 Zürich, Switzerland
| | - Ralph Müller
- Institute for Biomechanics, ETH Zürich, Gloriastrasse 37/39, 8006 Zürich, Switzerland.
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18
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Carnovali M, Zava S, Banfi G, Rizzo AM, Mariotti M. Vibration Rather than Microgravity Affects Bone Metabolism in Adult Zebrafish Scale Model. Cells 2024; 13:509. [PMID: 38534353 DOI: 10.3390/cells13060509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/08/2024] [Accepted: 03/11/2024] [Indexed: 03/28/2024] Open
Abstract
Gravity and mechanical forces cause important alterations in the human skeletal system, as demonstrated by space flights. Innovative animal models like zebrafish embryos and medaka have been introduced to study bone response in ground-based microgravity simulators. We used, for the first time, adult zebrafish in simulated microgravity, with a random positioning machine (RPM) to study bone remodeling in the scales. To evaluate the effects of microgravity on bone remodeling in adult bone tissue, we exposed adult zebrafish to microgravity for 14 days using RPM and we evaluated bone remodeling on explanted scales. Our data highlight bone resorption in scales in simulated microgravity fish but also in the fish exposed, in normal gravity, to the vibrations produced by the RPM. The osteoclast activation in both rotating and non-rotating samples suggest that prolonged vibrations exposure leads to bone resorption in the scales tissue. Stress levels in these fish were normal, as demonstrated by blood cortisol quantification. In conclusion, vibrational mechanical stress induced bone resorption in adult fish scales. Moreover, adult fish as an animal model for microgravity studies remains controversial since fish usually live in weightless conditions because of the buoyant force from water and do not constantly need to support their bodies against gravity.
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Affiliation(s)
- Marta Carnovali
- IRCCS Ospedale Galeazzi Sant'Ambrogio, Via C. Belgioioso 173, 20161 Milan, Italy
| | - Stefania Zava
- Department of Pharmacological and Biomedical Sciences "Rodolfo Paoletti", University of Milan, Via D. Trentacoste 2, 20134 Milan, Italy
| | - Giuseppe Banfi
- IRCCS Ospedale Galeazzi Sant'Ambrogio, Via C. Belgioioso 173, 20161 Milan, Italy
- School of Medicine, Vita-Salute San Raffaele University, Via Olgettina 58, 20132 Milan, Italy
| | - Angela Maria Rizzo
- Department of Pharmacological and Biomedical Sciences "Rodolfo Paoletti", University of Milan, Via D. Trentacoste 2, 20134 Milan, Italy
| | - Massimo Mariotti
- IRCCS Ospedale Galeazzi Sant'Ambrogio, Via C. Belgioioso 173, 20161 Milan, Italy
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, Via Commenda 10, 20122 Milan, Italy
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19
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Ali A, Flatt PR, Irwin N. Gut-Derived Peptide Hormone Analogues and Potential Treatment of Bone Disorders in Obesity and Diabetes Mellitus. Clin Med Insights Endocrinol Diabetes 2024; 17:11795514241238059. [PMID: 38486712 PMCID: PMC10938612 DOI: 10.1177/11795514241238059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 02/14/2024] [Indexed: 03/17/2024] Open
Abstract
Obesity and diabetes mellitus are prevalent metabolic disorders that have a detrimental impact on overall health. In this regard, there is now a clear link between these metabolic disorders and compromised bone health. Interestingly, both obesity and diabetes lead to elevated risk of bone fracture which is independent of effects on bone mineral density (BMD). In this regard, gastrointestinal (GIT)-derived peptide hormones and their related long-acting analogues, some of which are already clinically approved for diabetes and/or obesity, also seem to possess positive effects on bone remodelling and microarchitecture to reduce bone fracture risk. Specifically, the incretin peptides, glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP), as well as glucagon-like peptide-2 (GLP-2), exert key direct and/or indirect benefits on bone metabolism. This review aims to provide an initial appraisal of the relationship between obesity, diabetes and bone, with a focus on the positive impact of these GIT-derived peptide hormones for bone health in obesity/diabetes. Brief discussion of related peptides such as parathyroid hormone, leptin, calcitonin and growth hormone is also included. Taken together, drugs engineered to promote GIP, GLP-1 and GLP-2 receptor signalling may have potential to offer therapeutic promise for improving bone health in obesity and diabetes.
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Affiliation(s)
- Asif Ali
- Diabetes Research Centre, Biomedical Sciences Research Institute, Ulster University, Coleraine, Northern Ireland, UK
| | - Peter R Flatt
- Diabetes Research Centre, Biomedical Sciences Research Institute, Ulster University, Coleraine, Northern Ireland, UK
| | - Nigel Irwin
- Diabetes Research Centre, Biomedical Sciences Research Institute, Ulster University, Coleraine, Northern Ireland, UK
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20
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Yang YS, Sato T, Chaugule S, Ma H, Xie J, Gao G, Shim JH. AAV-based gene editing of type 1 collagen mutation to treat osteogenesis imperfecta. Mol Ther Nucleic Acids 2024; 35:102111. [PMID: 38261950 PMCID: PMC10797194 DOI: 10.1016/j.omtn.2023.102111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
Osteogenesis imperfecta (OI) is a genetic disorder characterized by bone fragility, low bone mass, fractures, and extraskeletal manifestations. Since OI is commonly caused by single-nucleotide mutation(s) in the COL1A1 or COL1A2 genes encoding type I collagens, we developed a genome-editing strategy to correct a Col1a2 mutation in an OIM mouse model resembling a severe dominant form of human type III OI. Using a recombinant adeno-associated virus (rAAV), we delivered CRISPR-Cas9 to bone-forming osteoblast-lineage cells in the skeleton. Homology-directed repair (HDR)-mediated gene editing efficiency in these cells was improved when CRISPR-Cas9 was coupled with a donor AAV vector containing a promoterless partial mouse Col1a2 complementary DNA sequence. This approach effectively reversed the dysregulation of osteogenic differentiation by a Col1a2 mutation in vitro. Furthermore, systemic administration of dual rAAVs in OIM mice lowered bone matrix turnover rates by reducing osteoblast and osteoclast development while improving the cellular network of mechano-sensing osteocytes embedded in the bone matrix. This strategy significantly improved bone architecture/mass/mineralization, skeletal deformities, grip strength, and spontaneous fractures. Our study is the first demonstration that HDR-mediated gene editing via AAV-mediated delivery effectively corrects a collagen mutation in OI osteoblasts and reverses skeletal phenotypes in OIM mice.
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Affiliation(s)
- Yeon-Suk Yang
- Department of Medicine, Division of Rheumatology, UMass Chan Medical School, Worcester, MA 01655, USA
| | - Tadatoshi Sato
- Department of Medicine, Division of Rheumatology, UMass Chan Medical School, Worcester, MA 01655, USA
- Horae Gene Therapy Center, UMass Chan Medical School, Worcester, MA 01655, USA
- Li Weibo Institute for Rare Diseases Research, UMass Chan Medical School, Worcester, MA 01655, USA
- Endocrine Unit, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Sachin Chaugule
- Department of Medicine, Division of Rheumatology, UMass Chan Medical School, Worcester, MA 01655, USA
| | - Hong Ma
- Horae Gene Therapy Center, UMass Chan Medical School, Worcester, MA 01655, USA
- Department of Microbiology and Physiological Systems, UMass Chan Medical School, Worcester, MA 01655, USA
- Viral Vector Core, UMass Chan Medical School, Worcester, MA 01655, USA
| | - Jun Xie
- Horae Gene Therapy Center, UMass Chan Medical School, Worcester, MA 01655, USA
- Department of Microbiology and Physiological Systems, UMass Chan Medical School, Worcester, MA 01655, USA
- Viral Vector Core, UMass Chan Medical School, Worcester, MA 01655, USA
| | - Guangping Gao
- Horae Gene Therapy Center, UMass Chan Medical School, Worcester, MA 01655, USA
- Department of Microbiology and Physiological Systems, UMass Chan Medical School, Worcester, MA 01655, USA
- Viral Vector Core, UMass Chan Medical School, Worcester, MA 01655, USA
- Li Weibo Institute for Rare Diseases Research, UMass Chan Medical School, Worcester, MA 01655, USA
| | - Jae-Hyuck Shim
- Department of Medicine, Division of Rheumatology, UMass Chan Medical School, Worcester, MA 01655, USA
- Horae Gene Therapy Center, UMass Chan Medical School, Worcester, MA 01655, USA
- Li Weibo Institute for Rare Diseases Research, UMass Chan Medical School, Worcester, MA 01655, USA
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21
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Kang H, Strong AL, Sun Y, Guo L, Juan C, Bancroft AC, Choi JH, Pagani CA, Fernandes AA, Woodard M, Lee J, Ramesh S, James AW, Hudson D, Dalby KN, Xu L, Tower RJ, Levi B. The HIF-1α/PLOD2 axis integrates extracellular matrix organization and cell metabolism leading to aberrant musculoskeletal repair. Bone Res 2024; 12:17. [PMID: 38472175 PMCID: PMC10933265 DOI: 10.1038/s41413-024-00320-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 01/04/2024] [Accepted: 02/01/2024] [Indexed: 03/14/2024] Open
Abstract
While hypoxic signaling has been shown to play a role in many cellular processes, its role in metabolism-linked extracellular matrix (ECM) organization and downstream processes of cell fate after musculoskeletal injury remains to be determined. Heterotopic ossification (HO) is a debilitating condition where abnormal bone formation occurs within extra-skeletal tissues. Hypoxia and hypoxia-inducible factor 1α (HIF-1α) activation have been shown to promote HO. However, the underlying molecular mechanisms by which the HIF-1α pathway in mesenchymal progenitor cells (MPCs) contributes to pathologic bone formation remain to be elucidated. Here, we used a proven mouse injury-induced HO model to investigate the role of HIF-1α on aberrant cell fate. Using single-cell RNA sequencing (scRNA-seq) and spatial transcriptomics analyses of the HO site, we found that collagen ECM organization is the most highly up-regulated biological process in MPCs. Zeugopod mesenchymal cell-specific deletion of Hif1α (Hoxa11-CreERT2; Hif1afl/fl) significantly mitigated HO in vivo. ScRNA-seq analysis of these Hoxa11-CreERT2; Hif1afl/fl mice identified the PLOD2/LOX pathway for collagen cross-linking as downstream of the HIF-1α regulation of HO. Importantly, our scRNA-seq data and mechanistic studies further uncovered that glucose metabolism in MPCs is most highly impacted by HIF-1α deletion. From a translational aspect, a pan-LOX inhibitor significantly decreased HO. A newly screened compound revealed that the inhibition of PLOD2 activity in MPCs significantly decreased osteogenic differentiation and glycolytic metabolism. This suggests that the HIF-1α/PLOD2/LOX axis linked to metabolism regulates HO-forming MPC fate. These results suggest that the HIF-1α/PLOD2/LOX pathway represents a promising strategy to mitigate HO formation.
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Affiliation(s)
- Heeseog Kang
- Center for Organogenesis, Regeneration and Trauma, Department of Surgery, University of Texas Southwestern, Dallas, TX, 75390, USA
| | - Amy L Strong
- Section of Plastic Surgery, Department of Surgery, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Yuxiao Sun
- Center for Organogenesis, Regeneration and Trauma, Department of Surgery, University of Texas Southwestern, Dallas, TX, 75390, USA
| | - Lei Guo
- Quantitative Biomedical Research Center, Peter O'Donnell Jr. School of Public Health, University of Texas Southwestern, Dallas, TX, 75390, USA
| | - Conan Juan
- Center for Organogenesis, Regeneration and Trauma, Department of Surgery, University of Texas Southwestern, Dallas, TX, 75390, USA
| | - Alec C Bancroft
- Center for Organogenesis, Regeneration and Trauma, Department of Surgery, University of Texas Southwestern, Dallas, TX, 75390, USA
| | - Ji Hae Choi
- Center for Organogenesis, Regeneration and Trauma, Department of Surgery, University of Texas Southwestern, Dallas, TX, 75390, USA
| | - Chase A Pagani
- Center for Organogenesis, Regeneration and Trauma, Department of Surgery, University of Texas Southwestern, Dallas, TX, 75390, USA
| | - Aysel A Fernandes
- Department of Orthopedics and Sports Medicine, University of Washington, Seattle, WA, 98195, USA
| | - Michael Woodard
- Center for Organogenesis, Regeneration and Trauma, Department of Surgery, University of Texas Southwestern, Dallas, TX, 75390, USA
| | - Juhoon Lee
- Division of Chemical Biology and Medicinal Chemistry, College of Pharmacy, University of Texas at Austin, Austin, TX, 78712, USA
| | - Sowmya Ramesh
- Department of Pathology, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Aaron W James
- Department of Pathology, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - David Hudson
- Department of Orthopedics and Sports Medicine, University of Washington, Seattle, WA, 98195, USA
| | - Kevin N Dalby
- Division of Chemical Biology and Medicinal Chemistry, College of Pharmacy, University of Texas at Austin, Austin, TX, 78712, USA
| | - Lin Xu
- Quantitative Biomedical Research Center, Peter O'Donnell Jr. School of Public Health, University of Texas Southwestern, Dallas, TX, 75390, USA
| | - Robert J Tower
- Center for Organogenesis, Regeneration and Trauma, Department of Surgery, University of Texas Southwestern, Dallas, TX, 75390, USA
| | - Benjamin Levi
- Center for Organogenesis, Regeneration and Trauma, Department of Surgery, University of Texas Southwestern, Dallas, TX, 75390, USA.
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22
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Chargo NJ, Kang HJ, Das S, Jin Y, Rockwell C, Cho JY, McCabe LR, Parameswaran N. Korean red ginseng extract prevents bone loss in an oral model of glucocorticoid induced osteoporosis in mice. Front Pharmacol 2024; 15:1268134. [PMID: 38533264 PMCID: PMC10963623 DOI: 10.3389/fphar.2024.1268134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 02/20/2024] [Indexed: 03/28/2024] Open
Abstract
The gut microbiota and barrier function play important roles in bone health. We previously demonstrated that chronic glucocorticoid (GC)-induced bone loss in mice is associated with significant shifts in gut microbiota composition and impaired gut barrier function. Korean Red Ginseng (KRG, Panax Ginseng Meyer, Araliaceae) extract has been shown to prevent glucocorticoid-induced osteoporosis (GIO) in a subcutaneous pellet model in mice, but its effect on gut microbiota and barrier function in this context is not known. The overall goal of this study was to test the effect of KRG extract in a clinically relevant, oral model of GIO and further investigate its role in modulating the gut-bone axis. Growing male mice (CD-1, 8 weeks) were treated with 75 μg/mL corticosterone (∼9 mg/kg/day) or 0.4% ethanol vehicle in the drinking water for 4 weeks. During this 4-week period, mice were treated daily with 500 mg/kg/day KRG extract dissolved in sterile water or an equal amount of sterile water via oral gastric gavage. After 4 weeks of treatment, we assessed bone volume, microbiota composition, gut barrier integrity, and immune cells in the bone marrow (BM) and mesenteric lymph nodes (MLNs). 4 weeks of oral GC treatment caused significant distal femur trabecular bone loss, and this was associated with changes in gut microbiota composition, impaired gut barrier function and altered immune cell composition. Importantly, KRG extract prevented distal femur trabecular bone loss and caused significant alterations in gut microbiota composition but had only modest effects on gut barrier function and immune cell populations. Taken together, these results demonstrate that KRG extract significantly modulates the gut microbiota-bone axis and prevents glucocorticoid-induced bone loss in mice.
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Affiliation(s)
- Nicholas J. Chargo
- Department of Physiology, Michigan State University, East Lansing, MI, United States
- College of Osteopathic Medicine, Michigan State University, East Lansing, MI, United States
| | - Ho Jun Kang
- Department of Physiology, Michigan State University, East Lansing, MI, United States
| | - Subhashari Das
- Department of Physiology, Michigan State University, East Lansing, MI, United States
| | - Yining Jin
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, United States
| | - Cheryl Rockwell
- Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, United States
| | - Jae Youl Cho
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, Republic of Korea
| | - Laura R. McCabe
- Department of Physiology, Michigan State University, East Lansing, MI, United States
- College of Osteopathic Medicine, Michigan State University, East Lansing, MI, United States
| | - Narayanan Parameswaran
- Department of Physiology, Michigan State University, East Lansing, MI, United States
- College of Human Medicine, Michigan State University, East Lansing, MI, United States
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23
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Hlad LM, Rizkalla JN, So E, Herzenberg JE. Treatment of External Fixator Pin Tract Deep Infections With an Antibiotic "Sparkler". Foot Ankle Spec 2024:19386400241235389. [PMID: 38450616 DOI: 10.1177/19386400241235389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Pin tract infections are virtually universal complications with the use of external fixation. While most are superficial and respond to oral antibiotics and local care, septic loosening may occur at the bone-pin interface, which may lead to instability of the fixator, catastrophic failure, fracture, and long-term osteomyelitis. Classification systems and prevention protocols have been developed to address this ubiquitous complication. Treatment of severe pin tract infections often requires debridement, parenteral antibiotics, and removal of the offending pin or the entire external fixator. In cases of osteomyelitic pin tracks, a sizable cavity is often present. We describe a simple technique for treatment of deep bone pin tract infection through the use of debridement, irrigation, and an antibiotic "sparkler," which is a specially prepared percutaneous implant of antibiotic laden bone cement.Levels of Evidence: Level 5.
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Affiliation(s)
- Lee M Hlad
- Ankle & Foot Associates LLC, Waycross, Georgia
| | | | - Eric So
- Capital Foot and Ankle, Lincoln, Nebraska
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24
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Nurkkala-Karlsson M, Lagerquist MK, Gupta P, Ohlsson C, Mellström D, Engdahl C. Essential role of local antibody distribution in mediating bone-resorbing effects. Sci Rep 2024; 14:5684. [PMID: 38454100 PMCID: PMC10920837 DOI: 10.1038/s41598-024-56192-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 03/04/2024] [Indexed: 03/09/2024] Open
Abstract
The link between antibodies and bone mass is debated. Activated IgG, which interacts directly with Fc gamma receptors, stimulates osteoclastogenesis in vitro, and local injection in immune-activated mice leads to bone loss. Multiple myeloma patients with high serum IgG levels have induced osteoclast activation and display bone loss. In addition, bone loss has been linked to serum autoantibodies in autoimmune diseases, including anti-citrullinated protein antibodies (ACPA) in individuals with rheumatoid arthritis (RA). Whether serum IgG or autoantibodies regulate bone mass under healthy conditions is poorly studied. In elderly men, neither serum levels of polyclonal IgG nor autoantibody were associated with areal bone mineral density in the MrOS Sweden study. Repetitive systemic injections of high-dose polyclonal IgG complexes in mice did not exert any discernible impact on bone mineral density. However, repetitive local intra-articular injection of the same IgG complexes led to a localized reduction of trabecular bone density. These results indicate antibodies may only impact bone density when close to the bone, such as within the synovial joint.
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Affiliation(s)
- Merja Nurkkala-Karlsson
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- SciLifeLab, University of Gothenburg, Box 413, 405 30, Gothenburg, Sweden
| | - Marie K Lagerquist
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Priti Gupta
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- SciLifeLab, University of Gothenburg, Box 413, 405 30, Gothenburg, Sweden
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Claes Ohlsson
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Dan Mellström
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Cecilia Engdahl
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
- SciLifeLab, University of Gothenburg, Box 413, 405 30, Gothenburg, Sweden.
- Sahlgrenska Osteoporosis Centre, Centre for Bone and Arthritis Research, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
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25
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Liu Y, Zhou M, Wang R, Liang Y, Zhuang G, Chen X, Luo S, Cai Y, Song C, Liu L, Ma L, Yao W, Liu Y, Cui L. Alleviation of Glucocorticoid-Induced Osteoporosis in Rats by Ethanolic Reynoutria multiflora (Thunb.) Moldenke Extract. J Med Food 2024. [PMID: 38442325 DOI: 10.1089/jmf.2023.k.0105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024] Open
Abstract
Secondary osteoporosis is frequently due to the use of high-dose glucocorticoids (GCs). The existing strategy for managing glucocorticoid-induced osteoporosis (GIOP) is considered insufficient and remains in a state of ongoing evolution. Therefore, it is crucial to develop more precise and effective agents for the treatment of GIOP. The constituents of Reynoutria multiflora (Thunb.) Moldenke, specifically Polygonum multiflorum (PM) Thunb, have previously shown promise in mitigating osteopenia. This study aimed to investigate the therapeutic effects of an ethanolic PM extract (PMR30) against GIOP in male rats. Prednisone (6 mg/kg/day, GC) was continuously administered to rats to induce GIOP, and they were subjected to treatment with or without ethanolic PMR30 for a duration of 120 days. Serum was collected for biochemical marker analysis. Bone histomorphometric, histological, and TUNEL analyses were performed on tibia samples. The protein expressions of LC3, Agt5, and Beclin 1 in the femur underwent examination through western blotting. Prolonged and excessive GC treatment significantly impeded bone formation, concomitant with reduced bone mass and body weight. It also suppressed OCN and OPG/RANKL in serum, and decreased Beclin 1 and LC3 in bone. Simultaneously, there was an elevation in bone resorption markers and apoptosis. Treatments with both high dose and low dose of PMR30 alleviated GIOP, stimulated bone formation, and upregulated OCN and OPG/RANKL, while suppressing TRACP-5b, CTX-I, and apoptosis. The impact of PMR30 possibly involves the enhancement of autophagy proteins (LC3, Agt5, and Beclin 1) and the inhibition of apoptosis within the bone. PMR30 holds promise as a prospective therapeutic agent for preventing and treating GIOP.
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Affiliation(s)
- Yuyu Liu
- Guangdong Key Laboratory for Research and Development of Natural Drug, Department of Pharmacology, Guangdong Medical University, Zhanjiang, China
| | - Manru Zhou
- Guangdong Key Laboratory for Research and Development of Natural Drug, Department of Pharmacology, Guangdong Medical University, Zhanjiang, China
- Guangdong Vocational Institute of Public Administration, Guangzhou, China
| | - Rui Wang
- Chemistry and Pharmacy Experimental Teaching Center, Guangdong Medical University, Zhanjiang, China
| | - Yuyu Liang
- Guangdong Key Laboratory for Research and Development of Natural Drug, Department of Pharmacology, Guangdong Medical University, Zhanjiang, China
| | - Guangjie Zhuang
- The First School of Clinical Medical, Guangdong Medical University, Zhanjiang, China
| | - Xuelin Chen
- Guangdong Key Laboratory for Research and Development of Natural Drug, Department of Pharmacology, Guangdong Medical University, Zhanjiang, China
| | - Shiying Luo
- Guangdong Key Laboratory for Research and Development of Natural Drug, Department of Pharmacology, Guangdong Medical University, Zhanjiang, China
| | - Yuliang Cai
- Department of Respiratory Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Chuge Song
- Department of Respiratory Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Lingna Liu
- Guangdong Key Laboratory for Research and Development of Natural Drug, Department of Pharmacology, Guangdong Medical University, Zhanjiang, China
| | - Luoyang Ma
- Guangdong Key Laboratory for Research and Development of Natural Drug, Department of Pharmacology, Guangdong Medical University, Zhanjiang, China
| | - Weimin Yao
- Department of Respiratory Medicine, The Second Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Yanzhi Liu
- Guangdong Key Laboratory for Research and Development of Natural Drug, Department of Pharmacology, Guangdong Medical University, Zhanjiang, China
- Zhanjiang Central Hospital, Guangdong Medical University, Zhanjiang, China
| | - Liao Cui
- Guangdong Key Laboratory for Research and Development of Natural Drug, Department of Pharmacology, Guangdong Medical University, Zhanjiang, China
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26
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Stolarov P, de Vries J, Stapleton S, Morris L, Martyniak K, Kean TJ. Suitability of Gelatin Methacrylate and Hydroxyapatite Hydrogels for 3D-Bioprinted Bone Tissue. Materials (Basel) 2024; 17:1218. [PMID: 38473692 DOI: 10.3390/ma17051218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 02/13/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024]
Abstract
BACKGROUND Complex bone defects are challenging to treat. Autografting is the gold standard for regenerating bone defects; however, its limitations include donor-site morbidity and increased surgical complexity. Advancements in 3D bioprinting (3DBP) offer a promising alternative for viable bone grafts. In this experiment, gels composed of varying levels of gelatin methacrylate (GelMA) and hydroxyapatite (HA) and gelatin concentrations are explored. The objective was to increase the hydroxyapatite content and find the upper limit before the printability was compromised and determine its effect on the mechanical properties and cell viability. METHODS Design of Experiments (DoE) was used to design 13 hydrogel bioinks of various GelMA/HA concentrations. These bioinks were assessed in terms of their pipettability and equilibrium modulus. An optimal bioink was designed using the DoE data to produce the greatest stiffness while still being pipettable. Three bioinks, one with the DoE-designed maximal stiffness, one with the experimentally defined maximal stiffness, and a literature-based control, were then printed using a 3D bioprinter and assessed for print fidelity. The resulting hydrogels were combined with human bone-marrow-derived mesenchymal stromal cells (hMSCs) and evaluated for cell viability. RESULTS The DoE ANOVA analysis indicated that the augmented three-level factorial design model used was a good fit (p < 0.0001). Using the model, DoE correctly predicted that a composite hydrogel consisting of 12.3% GelMA, 15.7% HA, and 2% gelatin would produce the maximum equilibrium modulus while still being pipettable. The hydrogel with the most optimal print fidelity was 10% GelMA, 2% HA, and 5% gelatin. There were no significant differences in the cell viability within the hydrogels from day 2 to day 7 (p > 0.05). There was, however, a significantly lower cell viability in the gel composed of 12.3% GelMA, 15.7% HA, and 2% gelatin compared to the other gels with a lower HA concentration (p < 0.05), showing that a higher HA content or print pressure may be cytotoxic within hydrogels. CONCLUSIONS Extrusion-based 3DBP offers significant advantages for bone-tissue implants due to its high customizability. This study demonstrates that it is possible to create printable bone-like grafts from GelMA and HA with an increased HA content, favorable mechanical properties (145 kPa), and a greater than 80% cell viability.
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Affiliation(s)
- Paul Stolarov
- Biionix Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Jonathan de Vries
- Biionix Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Sean Stapleton
- Biionix Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Lauren Morris
- Biionix Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Kari Martyniak
- Biionix Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Thomas J Kean
- Biionix Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
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27
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Wang Y, Wang C, Xia M, Tian Z, Zhou J, Berger JM, Zhang XHF, Xiao H. Engineering small-molecule and protein drugs for targeting bone tumors. Mol Ther 2024:S1525-0016(24)00142-4. [PMID: 38449313 DOI: 10.1016/j.ymthe.2024.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/06/2024] [Accepted: 03/04/2024] [Indexed: 03/08/2024] Open
Abstract
Bone cancer is common and severe. Both primary (e.g., osteosarcoma, Ewing sarcoma) and secondary (e.g., metastatic) bone cancers lead to significant health problems and death. Currently, treatments such as chemotherapy, hormone therapy, and radiation therapy are used to treat bone cancer, but they often only shrink or slow tumor growth and do not eliminate cancer completely. The bone microenvironment contributes unique signals that influence cancer growth, immunogenicity, and metastasis. Traditional cancer therapies have limited effectiveness due to off-target effects and poor distribution on bones. As a result, therapies with improved specificity and efficacy for treating bone tumors are highly needed. One of the most promising strategies involves the targeted delivery of pharmaceutical agents to the site of bone cancer by introduction of bone-targeting moieties, such as bisphosphonates or oligopeptides. These moieties have high affinities to the bone hydroxyapatite matrix, a structure found exclusively in skeletal tissue, and can enhance the targeting ability and efficacy of anticancer drugs when combating bone tumors. This review focuses on the engineering of small molecules and proteins with bone-targeting moieties for the treatment of bone tumors.
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Affiliation(s)
- Yixian Wang
- Department of Chemistry, Rice University, 6100 Main Street, Houston, TX 77005, USA
| | - Chenhang Wang
- Department of Chemistry, Rice University, 6100 Main Street, Houston, TX 77005, USA
| | - Meng Xia
- Department of Chemistry, Rice University, 6100 Main Street, Houston, TX 77005, USA
| | - Zeru Tian
- Department of Chemistry, Rice University, 6100 Main Street, Houston, TX 77005, USA
| | - Joseph Zhou
- Department of Chemistry, Rice University, 6100 Main Street, Houston, TX 77005, USA
| | - Julian Meyer Berger
- Osteologic Therapeutics, Inc., 228 Park Ave S PMB 35546, New York, NY 10003, USA
| | - Xiang H-F Zhang
- Department of Molecular and Cellular Biology, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX 77030, USA
| | - Han Xiao
- Department of Chemistry, Rice University, 6100 Main Street, Houston, TX 77005, USA; SynthX Center, Rice University, 6100 Main Street, Houston, TX 77005, USA; Department of Biosciences, Rice University, 6100 Main Street, Houston, TX 77005, USA; Department of Bioengineering, Rice University, 6100 Main Street, Houston, TX 77005, USA.
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28
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Gao F, Hu Q, Chen W, Li J, Qi C, Yan Y, Qian C, Wan M, Ficke J, Zheng J, Cao X. Brain regulates weight bearing bone through PGE2 skeletal interoception: implication of ankle osteoarthritis and pain. Bone Res 2024; 12:16. [PMID: 38443372 PMCID: PMC10914853 DOI: 10.1038/s41413-024-00316-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 03/07/2024] Open
Abstract
Bone is a mechanosensitive tissue and undergoes constant remodeling to adapt to the mechanical loading environment. However, it is unclear whether the signals of bone cells in response to mechanical stress are processed and interpreted in the brain. In this study, we found that the hypothalamus of the brain regulates bone remodeling and structure by perceiving bone prostaglandin E2 (PGE2) concentration in response to mechanical loading. Bone PGE2 levels are in proportion to their weight bearing. When weight bearing changes in the tail-suspension mice, the PGE2 concentrations in bones change in line with their weight bearing changes. Deletion of cyclooxygenase-2 (COX2) in the osteoblast lineage cells or knockout of receptor 4 (EP4) in sensory nerve blunts bone formation in response to mechanical loading. Moreover, knockout of TrkA in sensory nerve also significantly reduces mechanical load-induced bone formation. Moreover, mechanical loading induces cAMP-response element binding protein (CREB) phosphorylation in the hypothalamic arcuate nucleus (ARC) to inhibit sympathetic tyrosine hydroxylase (TH) expression in the paraventricular nucleus (PVN) for osteogenesis. Finally, we show that elevated PGE2 is associated with ankle osteoarthritis (AOA) and pain. Together, our data demonstrate that in response to mechanical loading, skeletal interoception occurs in the form of hypothalamic processing of PGE2-driven peripheral signaling to maintain physiologic bone homeostasis, while chronically elevated PGE2 can be sensed as pain during AOA and implication of potential treatment.
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Affiliation(s)
- Feng Gao
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
| | - Qimiao Hu
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
| | - Wenwei Chen
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
| | - Jilong Li
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
| | - Cheng Qi
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
| | - Yiwen Yan
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
| | - Cheng Qian
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
| | - Mei Wan
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
| | - James Ficke
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
| | - Junying Zheng
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
| | - Xu Cao
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA.
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA.
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Seal A, Hughes M, Wei F, Pugazhendhi AS, Ngo C, Ruiz J, Schwartzman JD, Coathup MJ. Sphingolipid-Induced Bone Regulation and Its Emerging Role in Dysfunction Due to Disease and Infection. Int J Mol Sci 2024; 25:3024. [PMID: 38474268 DOI: 10.3390/ijms25053024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/02/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024] Open
Abstract
The human skeleton is a metabolically active system that is constantly regenerating via the tightly regulated and highly coordinated processes of bone resorption and formation. Emerging evidence reveals fascinating new insights into the role of sphingolipids, including sphingomyelin, sphingosine, ceramide, and sphingosine-1-phosphate, in bone homeostasis. Sphingolipids are a major class of highly bioactive lipids able to activate distinct protein targets including, lipases, phosphatases, and kinases, thereby conferring distinct cellular functions beyond energy metabolism. Lipids are known to contribute to the progression of chronic inflammation, and notably, an increase in bone marrow adiposity parallel to elevated bone loss is observed in most pathological bone conditions, including aging, rheumatoid arthritis, osteoarthritis, and osteomyelitis. Of the numerous classes of lipids that form, sphingolipids are considered among the most deleterious. This review highlights the important primary role of sphingolipids in bone homeostasis and how dysregulation of these bioactive metabolites appears central to many chronic bone-related diseases. Further, their contribution to the invasion, virulence, and colonization of both viral and bacterial host cell infections is also discussed. Many unmet clinical needs remain, and data to date suggest the future use of sphingolipid-targeted therapy to regulate bone dysfunction due to a variety of diseases or infection are highly promising. However, deciphering the biochemical and molecular mechanisms of this diverse and extremely complex sphingolipidome, both in terms of bone health and disease, is considered the next frontier in the field.
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Affiliation(s)
- Anouska Seal
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
| | - Megan Hughes
- School of Biosciences, Cardiff University, Cardiff CF10 3AT, UK
| | - Fei Wei
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Abinaya S Pugazhendhi
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Christopher Ngo
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Jonathan Ruiz
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | | | - Melanie J Coathup
- Biionix Cluster, University of Central Florida, Orlando, FL 32827, USA
- College of Medicine, University of Central Florida, Orlando, FL 32827, USA
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Hawke TJ, Zaucke F. Exploring frontiers in musculoskeletal biology and bioengineering. Am J Physiol Cell Physiol 2024; 326:C659-C660. [PMID: 38252506 DOI: 10.1152/ajpcell.00037.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 01/16/2024] [Indexed: 01/24/2024]
Affiliation(s)
- Thomas J Hawke
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Frank Zaucke
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Department of Orthopedics (Friedrichsheim), University Hospital Frankfurt, Goethe University, Frankfurt am Main, Germany
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31
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Robin M, Djediat C, Bardouil A, Baccile N, Chareyron C, Zizak I, Fratzl P, Selmane M, Haye B, Genois I, Krafft J, Costentin G, Azaïs T, Artzner F, Giraud‐Guille M, Zaslansky P, Nassif N. Acidic Osteoid Templates the Plywood Structure of Bone Tissue. Adv Sci (Weinh) 2024; 11:e2304454. [PMID: 38115757 PMCID: PMC10916609 DOI: 10.1002/advs.202304454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 11/18/2023] [Indexed: 12/21/2023]
Abstract
Bone is created by osteoblasts that secrete osteoid after which an ordered texture emerges, followed by mineralization. Plywood geometries are a hallmark of many trabecular and cortical bones, yet the origin of this texturing in vivo has never been shown. Nevertheless, extensive in vitro work revealed how plywood textures of fibrils can emerge from acidic molecular cholesteric collagen mesophases. This study demonstrates in sheep, which is the preferred model for skeletal orthopaedic research, that the deeper non-fibrillar osteoid is organized in a liquid-crystal cholesteric geometry. This basophilic domain, rich in acidic glycosaminoglycans, exhibits low pH which presumably fosters mesoscale collagen molecule ordering in vivo. The results suggest that the collagen fibril motif of twisted plywood matures slowly through self-assembly thermodynamically driven processes as proposed by the Bouligand theory of biological analogues of liquid crystals. Understanding the steps of collagen patterning in osteoid-maturation processes may shed new light on bone pathologies that emerge from collagen physico-chemical maturation imbalances.
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Affiliation(s)
- Marc Robin
- CNRS, Sorbonne Université, Collège de FranceLaboratoire Chimie de la Matière Condensée de Paris (LCMCP)ParisF‐75005France
| | - Chakib Djediat
- Muséum National d'Histoire NaturelleUMR CNRS 7245, Bâtiment 39, CP 39, 57 rue CuvierParis75231France
| | - Arnaud Bardouil
- Université de Rennes, CNRSInstitut de Physique de Rennes (IPR)RennesF‐35000France
| | - Niki Baccile
- CNRS, Sorbonne Université, Collège de FranceLaboratoire Chimie de la Matière Condensée de Paris (LCMCP)ParisF‐75005France
| | - Camille Chareyron
- CNRS, Sorbonne Université, Collège de FranceLaboratoire Chimie de la Matière Condensée de Paris (LCMCP)ParisF‐75005France
| | - Ivo Zizak
- Helmholtz‐Zentrum Berlin für Materialien und Energie – Speicherring BESSY IIAlbert‐Einstein Str. 15D‐12349BerlinGermany
| | - Peter Fratzl
- Department of BiomaterialsMax Planck Institute of Colloids and Interfacesam Mühlenberg 114476PotsdamGermany
| | - Mohamed Selmane
- Institut des Matériaux de Paris CentreSorbonne UniversitéParisF‐75005France
| | - Bernard Haye
- CNRS, Sorbonne Université, Collège de FranceLaboratoire Chimie de la Matière Condensée de Paris (LCMCP)ParisF‐75005France
| | - Isabelle Genois
- CNRS, Sorbonne Université, Collège de FranceLaboratoire Chimie de la Matière Condensée de Paris (LCMCP)ParisF‐75005France
| | - Jean‐Marc Krafft
- Sorbonne Université, CNRSLaboratoire Réactivité de Surface (LRS)ParisF‐75005France
| | - Guylène Costentin
- Sorbonne Université, CNRSLaboratoire Réactivité de Surface (LRS)ParisF‐75005France
| | - Thierry Azaïs
- CNRS, Sorbonne Université, Collège de FranceLaboratoire Chimie de la Matière Condensée de Paris (LCMCP)ParisF‐75005France
| | - Franck Artzner
- Université de Rennes, CNRSInstitut de Physique de Rennes (IPR)RennesF‐35000France
| | - Marie‐Madeleine Giraud‐Guille
- CNRS, Sorbonne Université, Collège de FranceLaboratoire Chimie de la Matière Condensée de Paris (LCMCP)ParisF‐75005France
| | - Paul Zaslansky
- Department for OperativePreventive and Pediatric DentistryCharité – Universitätsmedizin BerlinAßmannshauser Str. 4–614197BerlinGermany
| | - Nadine Nassif
- CNRS, Sorbonne Université, Collège de FranceLaboratoire Chimie de la Matière Condensée de Paris (LCMCP)ParisF‐75005France
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Costa da Silva RG, Sun TC, Mishra AP, Boyde A, Doube M, Riggs CM. Intracortical remodelling increases in highly loaded bone after exercise cessation. J Anat 2024; 244:424-437. [PMID: 37953410 PMCID: PMC10862154 DOI: 10.1111/joa.13969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 10/18/2023] [Accepted: 10/18/2023] [Indexed: 11/14/2023] Open
Abstract
Resorption within cortices of long bones removes excess mass and damaged tissue and increases during periods of reduced mechanical loading. Returning to high-intensity exercise may place bones at risk of failure due to increased porosity caused by bone resorption. We used point-projection X-ray microscopy images of bone slices from highly loaded (metacarpal, tibia) and minimally loaded (rib) bones from 12 racehorses, 6 that died during a period of high-intensity exercise and 6 that had a period of intense exercise followed by at least 35 days of rest prior to death, and measured intracortical canal cross-sectional area (Ca.Ar) and number (N.Ca) to infer remodelling activity across sites and exercise groups. Large canals that are the consequence of bone resorption (Ca.Ar >0.04 mm2 ) were 1.4× to 18.7× greater in number and area in the third metacarpal bone from rested than exercised animals (p = 0.005-0.008), but were similar in number and area in ribs from rested and exercised animals (p = 0.575-0.688). An intermediate relationship was present in the tibia, and when large canals and smaller canals that result from partial bony infilling (Ca.Ar >0.002 mm2 ) were considered together. The mechanostat may override targeted remodelling during periods of high mechanical load by enhancing bone formation, reducing resorption and suppressing turnover. Both systems may work synergistically in rest periods to remove excess and damaged tissue.
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Affiliation(s)
| | - Tsim Christopher Sun
- Sydney School of Veterinary ScienceUniversity of SydneyCamperdownNew South WalesAustralia
| | - Ambika Prasad Mishra
- Department of Infectious Diseases and Public HealthCity University of Hong KongKowloonHong Kong
| | - Alan Boyde
- Barts and The London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | - Michael Doube
- Department of Infectious Diseases and Public HealthCity University of Hong KongKowloonHong Kong
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Dewey MJ, Timmer KB, Blystone A, Lu C, Harley BAC. Evaluating osteogenic effects associated with the incorporation of ascorbic acid in mineralized collagen scaffolds. J Biomed Mater Res A 2024; 112:336-347. [PMID: 37861296 PMCID: PMC10841497 DOI: 10.1002/jbm.a.37628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 10/05/2023] [Accepted: 10/09/2023] [Indexed: 10/21/2023]
Abstract
Current treatments for craniomaxillofacial (CMF) defects motivate the design of instructive biomaterials that can promote osteogenic healing of complex bone defects. We report methods to promote in vitro osteogenesis of human mesenchymal stem cells (hMSCs) within a model mineralized collagen scaffold via the incorporation of ascorbic acid (vitamin C), a key factor in collagen biosynthesis and bone mineralization. An addition of 5 w/v% ascorbic acid into the base mineralized collagen scaffold significantly changes key morphology characteristics including porosity, macrostructure, and microstructure. This modification promotes hMSC metabolic activity, ALP activity, and hMSC-mediated deposition of calcium and phosphorous. Additionally, the incorporation of ascorbic acid influences osteogenic gene expression (BMP-2, RUNX2, COL1A2) and delays the expression of genes associated with osteoclast activity and bone resorption (OPN, CTSK), though it reduces the secretion of OPG. Together, these findings highlight ascorbic acid as a relevant component for mineralized collagen scaffold design to promote osteogenic differentiation and new bone formation for improved CMF outcomes.
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Affiliation(s)
- Marley J Dewey
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Kyle B Timmer
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Ashley Blystone
- School of Chemical Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Crislyn Lu
- School of Chemical Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - Brendan A C Harley
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Cancer Center at Illinois, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
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Xu Z, Locke CS, Morris R, Jamison D, Kozloff KM, Wang X. Development of a semi-anthropomorphic photoacoustic calcaneus phantom based on nano computed tomography and stereolithography 3D printing. J Orthop Res 2024; 42:647-660. [PMID: 37804209 PMCID: PMC10932887 DOI: 10.1002/jor.25702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 06/28/2023] [Accepted: 10/05/2023] [Indexed: 10/09/2023]
Abstract
Osteoporosis is a major public health threat with significant physical, psychosocial, and financial consequences. The calcaneus bone has been used as a measurement site for risk prediction of osteoporosis by noninvasive quantitative ultrasound (QUS). By adding optical contrast to QUS, our previous studies indicate that a combination of photoacoustic (PA) and QUS, that is, PAQUS, provides a novel opportunity to assess the health of human calcaneus. Calibration of the PAQUS system is crucial to realize quantitative and repeatable measurements of the calcaneus. Therefore, a phantom which simulates the optical, ultrasound, and architectural properties of the human calcaneus, for PAQUS system calibration, is required. Additionally, a controllable phantom offers researchers a versatile framework for developing versatile structures, allowing more controlled assessment of how varying bone structures cause defined alterations in PA and QUS signals. In this work, we present the first semi-anthropomorphic calcaneus phantom for PAQUS. The phantom was developed based on nano computed-tomography (nano-CT) and stereolithography 3D printing, aiming to maximize accuracy in the approximation of both trabecular and cortical bone microstructures. Compared with the original digital input calcaneus model from a human cadaveric donor, the printed model achieved accuracies of 71.15% in total structure and 87.21% in bone volume fraction. Inorganic materials including synthetic blood, mineral oil, intralipid, and agar gel were used to model the substitutes of bone marrow and soft tissue, filling and covering the calcaneus phantom. The ultrasound and optical properties of this phantom were measured, and the results were consistent with those measured by a commercialized device and from previous in vivo studies. In addition, a short-term stability test was conducted for this phantom, demonstrating that the optical and ultrasound properties of the phantom were stable without significant variation over 1 month. This semi-anthropomorphic calcaneus phantom shows structural, ultrasound, and optical properties similar to those from a human calcaneus in vivo and, thereby, can serve as an effective source for equipment calibration and the comprehensive study of human patients.
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Affiliation(s)
- Zhanpeng Xu
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Conor S. Locke
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, Michigan 48109, USA
| | | | - DeAndre Jamison
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Kenneth M. Kozloff
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - Xueding Wang
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA
- Department of Radiology, University of Michigan, Ann Arbor, Michigan 48109, USA
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Kaneguchi A, Yamaoka K, Ozawa J. The Effects of Corticosteroid Administration and Treadmill Exercise on Marrow Adipose Tissue and Trabecular Bone after Anterior Cruciate Ligament Reconstruction in Rats. Acta Histochem Cytochem 2024; 57:47-55. [PMID: 38463208 PMCID: PMC10918434 DOI: 10.1267/ahc.23-00068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 01/22/2024] [Indexed: 03/12/2024] Open
Abstract
We aimed to investigate the effects of short-term corticosteroid administration after anterior cruciate ligament (ACL) reconstruction on marrow adipose tissue (MAT) and trabecular bone mass, as well as to examine whether treadmill exercise can mitigate MAT increase and trabecular bone deterioration caused by corticosteroid. ACL-reconstructed rats were divided into groups: no intervention, daily treadmill exercise (60 min/day), administration of the steroidal drug dexamethasone (250 μg/kg on days 0-5, 7, and 9 post-operatively), or dexamethasone administration combined with treadmill exercise. Untreated rats were served as controls. At day 10 or 30 post-operatively, histological assessments were performed in the proximal tibial epiphysis. MAT accumulation and trabecular bone loss were observed after ACL reconstruction. Dexamethasone promoted MAT accumulation at day 10 post-operatively but did not affect the trabecular bone loss. The MAT accumulation caused by dexamethasone reversed within 21 days after discontinuation. Treadmill exercise did not influence the changes in the MAT and trabecular bone areas. Short-term corticosteroid administration after ACL reconstruction promoted MAT accumulation while not affecting trabecular bone area. The MAT accumulation resulting from corticosteroid administration was reversible after discontinuation. Treadmill exercise could not mitigate the accumulation of MAT caused by corticosteroid administration and did not affect trabecular bone area.
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Affiliation(s)
- Akinori Kaneguchi
- Department of Rehabilitation, Faculty of Rehabilitation, Hiroshima International University, Kurose-Gakuendai 555–36, Higashi-Hiroshima, Hiroshima, Japan
| | - Kaoru Yamaoka
- Department of Rehabilitation, Faculty of Rehabilitation, Hiroshima International University, Kurose-Gakuendai 555–36, Higashi-Hiroshima, Hiroshima, Japan
| | - Junya Ozawa
- Department of Rehabilitation, Faculty of Rehabilitation, Hiroshima International University, Kurose-Gakuendai 555–36, Higashi-Hiroshima, Hiroshima, Japan
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36
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Mueller SW, Molina KC, Blass B, Gibson C, Kohler AD, Krsak M, Wiktor AJ. Bone and Skin / Subcutaneous Tissue Concentrations of Cefiderocol During Treatment of Extensively Drug Resistant Pseudomonas aeruginosa. J Burn Care Res 2024:irae026. [PMID: 38422368 DOI: 10.1093/jbcr/irae026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Indexed: 03/02/2024]
Abstract
Pyoderma gangrenosum is a rare dermatologic disorder that disrupts the skin barrier, requiring immunosuppressive therapy. We successfully used cefiderocol for the treatment of an extensively drug-resistant Pseudomonas aeruginosa bacteremia, and presumed osteomyelitis in a patient with severe pyoderma gangrenosum and associated immunosuppressive therapy while being medically optimized for skin grafting. We obtained bone and skin / subcutaneous tissue while the patient was on cefiderocol under an institutional review board approved biologic waste recovery protocol. Cefiderocol concentrations in bone and skin / subcutaneous tissue were 13.9 and 35.9 mcg/g, respectively. The patient recovered from bacteremia and underwent autografting without further complications. Cefiderocol at approved dosing of 2 grams IV (3-hour infusion) every 8 hours resulted in bone and skin / subcutaneous tissue concentrations adequate to treat extensively drug resistant Gram-negative bacteria that remain susceptible to cefiderocol.
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Affiliation(s)
- Scott W Mueller
- Department of Pharmacy, University of Colorado Hospital. Aurora, CO, USA
| | - Kyle C Molina
- Department of Emergency Medicine, University of Colorado Anschutz School of Medicine. Aurora, CO, USA
| | - Brittany Blass
- Department of Surgery. Division of GI, Trauma, and Endocrine Surgery (GITES). University of Colorado Hospital. Aurora, CO, USA
| | - Cameron Gibson
- Department of Surgery. Division of GI, Trauma, and Endocrine Surgery (GITES). University of Colorado Hospital. Aurora, CO, USA
| | - Amber D Kohler
- Department of Surgery. Division of GI, Trauma, and Endocrine Surgery (GITES). University of Colorado Hospital. Aurora, CO, USA
| | - Martin Krsak
- Division of Infectious Diseases, Department of Medicine, University of Colorado School of Medicine. Aurora, CO, USA
| | - Arek J Wiktor
- Department of Surgery. Division of GI, Trauma, and Endocrine Surgery (GITES). University of Colorado Hospital. Aurora, CO, USA
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Li Y, Cai Z, Ma W, Bai L, Luo E, Lin Y. A DNA tetrahedron-based ferroptosis-suppressing nanoparticle: superior delivery of curcumin and alleviation of diabetic osteoporosis. Bone Res 2024; 12:14. [PMID: 38424439 PMCID: PMC10904802 DOI: 10.1038/s41413-024-00319-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/02/2024] [Accepted: 01/19/2024] [Indexed: 03/02/2024] Open
Abstract
Diabetic osteoporosis (DOP) is a significant complication that poses continuous threat to the bone health of patients with diabetes; however, currently, there are no effective treatment strategies. In patients with diabetes, the increased levels of ferroptosis affect the osteogenic commitment and differentiation of bone mesenchymal stem cells (BMSCs), leading to significant skeletal changes. To address this issue, we aimed to target ferroptosis and propose a novel therapeutic approach for the treatment of DOP. We synthesized ferroptosis-suppressing nanoparticles, which could deliver curcumin, a natural compound, to the bone marrow using tetrahedral framework nucleic acid (tFNA). This delivery system demonstrated excellent curcumin bioavailability and stability, as well as synergistic properties with tFNA. Both in vitro and in vivo experiments revealed that nanoparticles could enhance mitochondrial function by activating the nuclear factor E2-related factor 2 (NRF2)/glutathione peroxidase 4 (GPX4) pathway, inhibiting ferroptosis, promoting the osteogenic differentiation of BMSCs in the diabetic microenvironment, reducing trabecular loss, and increasing bone formation. These findings suggest that curcumin-containing DNA tetrahedron-based ferroptosis-suppressing nanoparticles have a promising potential for the treatment of DOP and other ferroptosis-related diseases.
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Affiliation(s)
- Yong Li
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, PR China
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, Sichuan, 646000, PR China
| | - Zhengwen Cai
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, PR China
| | - Wenjuan Ma
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, PR China
| | - Long Bai
- Department of Oral and Maxillofacial Surgery, Affiliated Stomatological Hospital, Southwest Medical University, Luzhou, Sichuan, 646000, PR China
| | - En Luo
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, PR China.
| | - Yunfeng Lin
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, PR China.
- Sichuan Provincial Engineering Research Center of Oral Biomaterials, Chengdu, Sichuan, 610041, China.
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Zheng W, Lu X, Chen G, Shen Y, Huang X, Peng J, Wang J, Yin Y, Song W, Xie M, Yu S, Chen L. The osteoclastic activity in apical distal region of molar mesial roots affects orthodontic tooth movement and root resorption in rats. Int J Oral Sci 2024; 16:19. [PMID: 38418457 PMCID: PMC10901898 DOI: 10.1038/s41368-024-00284-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 01/21/2024] [Indexed: 03/01/2024] Open
Abstract
The utilization of optimal orthodontic force is crucial to prevent undesirable side effects and ensure efficient tooth movement during orthodontic treatment. However, the sensitivity of existing detection techniques is not sufficient, and the criteria for evaluating optimal force have not been yet established. Here, by employing 3D finite element analysis methodology, we found that the apical distal region (A-D region) of mesial roots is particularly sensitive to orthodontic force in rats. Tartrate-resistant acidic phosphatase (TRAP)-positive osteoclasts began accumulating in the A-D region under the force of 40 grams (g), leading to alveolar bone resorption and tooth movement. When the force reached 80 g, TRAP-positive osteoclasts started appearing on the root surface in the A-D region. Additionally, micro-computed tomography revealed a significant root resorption at 80 g. Notably, the A-D region was identified as a major contributor to whole root resorption. It was determined that 40 g is the minimum effective force for tooth movement with minimal side effects according to the analysis of tooth movement, inclination, and hyalinization. These findings suggest that the A-D region with its changes on the root surface is an important consideration and sensitive indicator when evaluating orthodontic forces for a rat model. Collectively, our investigations into this region would aid in offering valuable implications for preventing and minimizing root resorption during patients' orthodontic treatment.
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Affiliation(s)
- Wenhao Zheng
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Xiaofeng Lu
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Guangjin Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Yufeng Shen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
- Department of Stomatology, The First Affiliated Hospital, School of Medicine, Shihezi University, Shihezi, China
| | - Xiaofei Huang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Jinfeng Peng
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Jiajia Wang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Ying Yin
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Wencheng Song
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Mengru Xie
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Shaoling Yu
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China.
| | - Lili Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China.
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Lee D, Kim E, Woo H, Jeon CY, Yoon J, Choi J. Fast field echo resembling CT using restricted echo-spacing (FRACTURE) MR sequence can provide craniocervical region images comparable to a CT in dogs. Front Bioeng Biotechnol 2024; 12:1297675. [PMID: 38476967 PMCID: PMC10927716 DOI: 10.3389/fbioe.2024.1297675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 02/09/2024] [Indexed: 03/14/2024] Open
Abstract
Magnetic resonance imaging (MRI) is essential for evaluating cerebellar compression in patients with craniocervical junction abnormalities (CJA). However, it is limited in depicting cortical bone because of its short T2 relaxation times, low proton density, and organized structure. Fast field echo resembling a computed tomography (CT) scan using restricted echo-spacing (FRACTURE) MRI, is a new technique that offers CT-like bone contrast without radiation. This study aimed to assess the feasibility of using FRACTURE MRI for craniocervical junction (CCJ) assessment compared with CT and conventional MRI, potentially reducing the need for multiple scans and radiation exposure, and simplifying procedures in veterinary medicine. CT and MRI of the CCJ were obtained from five healthy beagles. MRI was performed using three-dimensional (3D) T1-weighted, T2-weighted, proton density-weighted (PDW), single echo-FRACTURE (sFRACTURE), and multiple echo-FRACTURE (mFRACTURE) sequences. For qualitative assessment, cortical delineation, trabecular bone visibility, joint space visibility, vertebral canal definition, overall quality, and artifacts were evaluated for each sequence. The geometrical accuracy, signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR) were quantified. Both sFRACTURE and CT images provided significantly higher scores for cortical delineation and trabecular bone visibility than conventional MRI. Joint space visibility and vertebral canal definition were similar to those observed on CT images, regardless of the MR sequence. In the quantitative assessment, the distances measured on T2-weighted images differed significantly from those measured on CT. There were no significant differences between the distances taken using T1-weighted, PD-weighted, sFRACTURE, mFRACTURE and those taken using CT. T1-weighted and sFRACTURE had a higher SNR for trabecular bone than CT. The CNR between the cortical bone and muscle was high on CT and FRACTURE images. However, the CNR between the cortical and trabecular bones was low in mFRACTURE. Similar to CT, FRACTURE sequences showed higher cortical delineation and trabecular bone visibility than T2-weighted, T1-weighted, and PDW CCJ sequences. In particular, sFRACTURE provided a high signal-to-noise ratio (SNR) of the trabecular bone and a high CNR between the cortical bone and muscle and between the cortical and trabecular bones. FRACTURE sequences can complement conventional MR sequences for bone assessment of the CCJ in dogs.
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Affiliation(s)
- Dongjae Lee
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Eunjee Kim
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Hyeonjae Woo
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Chang-Yeop Jeon
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Republic of Korea
| | - Junghee Yoon
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Jihye Choi
- Department of Veterinary Medical Imaging, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
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40
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Schurman CA, Kaya S, Dole N, Luna NMM, Castillo N, Potter R, Rose JP, Bons J, King CD, Burton JB, Schilling B, Melov S, Tang S, Schaible E, Alliston T. Aging impairs the osteocytic regulation of collagen integrity and bone quality. Bone Res 2024; 12:13. [PMID: 38409111 PMCID: PMC10897167 DOI: 10.1038/s41413-023-00303-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 10/31/2023] [Accepted: 11/13/2023] [Indexed: 02/28/2024] Open
Abstract
Poor bone quality is a major factor in skeletal fragility in elderly individuals. The molecular mechanisms that establish and maintain bone quality, independent of bone mass, are unknown but are thought to be primarily determined by osteocytes. We hypothesize that the age-related decline in bone quality results from the suppression of osteocyte perilacunar/canalicular remodeling (PLR), which maintains bone material properties. We examined bones from young and aged mice with osteocyte-intrinsic repression of TGFβ signaling (TβRIIocy-/-) that suppresses PLR. The control aged bone displayed decreased TGFβ signaling and PLR, but aging did not worsen the existing PLR suppression in male TβRIIocy-/- bone. This relationship impacted the behavior of collagen material at the nanoscale and tissue scale in macromechanical tests. The effects of age on bone mass, density, and mineral material behavior were independent of osteocytic TGFβ. We determined that the decline in bone quality with age arises from the loss of osteocyte function and the loss of TGFβ-dependent maintenance of collagen integrity.
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Affiliation(s)
- Charles A Schurman
- Department of Orthopaedic Surgery, University of California, San Francisco, CA, 94143, USA
- UC Berkeley/UCSF Graduate Program in Bioengineering, San Francisco, CA, 94143, USA
- Buck Institute for Research on Aging, Novato, CA, 94945, USA
| | - Serra Kaya
- Department of Orthopaedic Surgery, University of California, San Francisco, CA, 94143, USA
| | - Neha Dole
- Department of Orthopaedic Surgery, University of California, San Francisco, CA, 94143, USA
| | - Nadja M Maldonado Luna
- Department of Orthopaedic Surgery, University of California, San Francisco, CA, 94143, USA
- UC Berkeley/UCSF Graduate Program in Bioengineering, San Francisco, CA, 94143, USA
| | - Natalia Castillo
- Department of Orthopaedic Surgery, University of California, San Francisco, CA, 94143, USA
| | - Ryan Potter
- Washington University in St Louis, Department of Orthopedics, St. Louis, MO, 63130, USA
| | - Jacob P Rose
- Buck Institute for Research on Aging, Novato, CA, 94945, USA
| | - Joanna Bons
- Buck Institute for Research on Aging, Novato, CA, 94945, USA
| | | | - Jordan B Burton
- Buck Institute for Research on Aging, Novato, CA, 94945, USA
| | | | - Simon Melov
- Buck Institute for Research on Aging, Novato, CA, 94945, USA
| | - Simon Tang
- Washington University in St Louis, Department of Orthopedics, St. Louis, MO, 63130, USA
| | - Eric Schaible
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Tamara Alliston
- Department of Orthopaedic Surgery, University of California, San Francisco, CA, 94143, USA.
- UC Berkeley/UCSF Graduate Program in Bioengineering, San Francisco, CA, 94143, USA.
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Theodosaki AM, Tzemi M, Galanis N, Bakopoulou A, Kotsiomiti E, Aggelidou E, Kritis A. Bone Regeneration with Mesenchymal Stem Cells in Scaffolds: Systematic Review of Human Clinical Trials. Stem Cell Rev Rep 2024:10.1007/s12015-024-10696-5. [PMID: 38407793 DOI: 10.1007/s12015-024-10696-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2024] [Indexed: 02/27/2024]
Abstract
The aim of the study is to determine the effectiveness of stem cells in scaffolds in the treatment of bone deficits, in regard of bone regeneration, safety, rehabilitation and quality of life in humans. The systematic review was conducted in accordance with PRISMA 2020. A systematic search was conducted in three search engines and two registries lastly in 29-9-2022.for studies of the last 15 years. The risk of bias was assessed with RoB-2, ROBINS- I and NIH Quality of Before-After (Pre-Post) Studies with no Control group. The certainty of the results was assessed with the GRADE assessment tool. Due to heterogeneity, the results were reported in tables, graphs and narratively. The study protocol was published in PROSPERO with registration number CRD42022359049. Of the 10,091 studies retrieved, 14 were meeting the inclusion criteria, and were qualitatively analyzed. 138 patients were treated with mesenchymal stem cells in scaffolds, showing bone healing in all cases, and even with better results than the standard care. The adverse events were mild in most cases and in accordance with the surgery received. When assessed, there was a rehabilitation of the deficit and a gain in quality of life was detected. Although the heterogeneity between the studies and the small number of patients, the administration of mesenchymal stem cells in scaffolds seems safe and effective in the regeneration of bone defects. These results pave the way for the conduction of more clinical trials, with greater number of participants, with more standardized procedures.
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Affiliation(s)
- Astero Maria Theodosaki
- Research Methodology in Medicine and Health Sciences, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece.
- Regenerative Medicine Center, Basic and Translational Research Unit (BTRU) of Special Unit for Biomedical Research and Education (BRESU), Faculty of Health Sciences, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, 54636, Greece.
- Postgraduate program of Research Methodology in Medicine and Health Sciences, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece.
- , Thessaloniki, Greece.
| | - Maria Tzemi
- Research Methodology in Medicine and Health Sciences, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
- Postgraduate program of Research Methodology in Medicine and Health Sciences, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Nikiforos Galanis
- School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
- 1st Orthopaedic Department, George Papanikolaou Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Athina Bakopoulou
- Department of Prosthodontics, Faculty of Dentistry, Aristotle University of Thessaloniki, University Campus, Dentistry Building, 54124, Thessaloniki, Greece
- Regenerative Medicine Center, Basic and Translational Research Unit (BTRU) of Special Unit for Biomedical Research and Education (BRESU), Faculty of Health Sciences, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, 54636, Greece
| | - Eleni Kotsiomiti
- Department of Prosthodontics, Faculty of Dentistry, Aristotle University of Thessaloniki, University Campus, Dentistry Building, 54124, Thessaloniki, Greece
| | - Eleni Aggelidou
- Department of Physiology and Pharmacology, Faculty of Medicine, Aristotle University of Thessaloniki, University Campus, 54006, Thessaloniki, Greece
- Regenerative Medicine Center, Basic and Translational Research Unit (BTRU) of Special Unit for Biomedical Research and Education (BRESU), Faculty of Health Sciences, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, 54636, Greece
| | - Aristeidis Kritis
- Department of Physiology and Pharmacology, Faculty of Medicine, Aristotle University of Thessaloniki, University Campus, 54006, Thessaloniki, Greece
- Regenerative Medicine Center, Basic and Translational Research Unit (BTRU) of Special Unit for Biomedical Research and Education (BRESU), Faculty of Health Sciences, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, 54636, Greece
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42
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Piontkowski ZT, Hayes DC, McDonald A, Pattison K, Butler KS, Timlin JA. Label-Free, Noninvasive Bone Cell Classification by Hyperspectral Confocal Raman Microscopy. Chem Biomed Imaging 2024; 2:147-155. [PMID: 38425368 PMCID: PMC10900511 DOI: 10.1021/cbmi.3c00106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/06/2023] [Accepted: 12/30/2023] [Indexed: 03/02/2024]
Abstract
Characterizing and identifying cells in multicellular in vitro models remain a substantial challenge. Here, we utilize hyperspectral confocal Raman microscopy and principal component analysis coupled with linear discriminant analysis to form a label-free, noninvasive approach for classifying bone cells and osteosarcoma cells. Through the development of a library of hyperspectral Raman images of the K7M2-wt osteosarcoma cell lines, 7F2 osteoblast cell lines, RAW 264.7 macrophage cell line, and osteoclasts induced from RAW 264.7 macrophages, we built a linear discriminant model capable of correctly identifying each of these cell types. The model was cross-validated using a k-fold cross validation scheme. The results show a minimum of 72% accuracy in predicting cell type. We also utilize the model to reconstruct the spectra of K7M2 and 7F2 to determine whether osteosarcoma cancer cells and normal osteoblasts have any prominent differences that can be captured by Raman. We find that the main differences between these two cell types are the prominence of the β-sheet protein secondary structure in K7M2 versus the α-helix protein secondary structure in 7F2. Additionally, differences in the CH2 deformation Raman feature highlight that the membrane lipid structure is different between these cells, which may affect the overall signaling and functional contrasts. Overall, we show that hyperspectral confocal Raman microscopy can serve as an effective tool for label-free, nondestructive cellular classification and that the spectral reconstructions can be used to gain deeper insight into the differences that drive different functional outcomes of different cells.
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Affiliation(s)
- Zachary T. Piontkowski
- Sandia
National Laboratories, Department of Applied
Optics and Plasma Sciences, 1515 Eubank Blvd. SE, Albuquerque, New Mexico 87123, United States
| | - Dulce C. Hayes
- Sandia
National Laboratories, Department of Molecular
and Microbiology, 1515
Eubank Blvd. SE, Albuquerque, New Mexico 87123, United States
| | - Anthony McDonald
- Sandia
National Laboratories, Department of Applied
Optics and Plasma Sciences, 1515 Eubank Blvd. SE, Albuquerque, New Mexico 87123, United States
| | - Kalista Pattison
- Sandia
National Laboratories, Department of Molecular
and Microbiology, 1515
Eubank Blvd. SE, Albuquerque, New Mexico 87123, United States
| | - Kimberly S. Butler
- Sandia
National Laboratories, Department of Molecular
and Microbiology, 1515
Eubank Blvd. SE, Albuquerque, New Mexico 87123, United States
| | - Jerilyn A. Timlin
- Sandia
National Laboratories, Department of Molecular
and Microbiology, 1515
Eubank Blvd. SE, Albuquerque, New Mexico 87123, United States
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Ding K, Gong Y, Li X, Zhu Y, Yao L. [Role of NLRP3 inflammasomes in musculoskeletal disorders]. Sheng Wu Gong Cheng Xue Bao 2024; 40:337-349. [PMID: 38369825 DOI: 10.13345/j.cjb.230378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Inflammasomes are innate immune sensors and receptors that play key pathological roles in the development and progression of numerous diseases. Recent studies have shown that NLRP3 inflammasomes are critical in the pathology of diseases with a high impact on public health, such as musculoskeletal disorders. Musculoskeletal disorders, mainly caused or aggravated by work and the surrounding environment, are locomotor system disorders such as muscles, joints, bones, as well as diseases associated with neurological and circulatory system injuries. Activation of NLRP3 inflammasomes can induce inflammation and pyroptosis, leading to further bodily harm. Therefore, investigating the mechanism and function of NLRP3 inflammasomes, holds great significance and importance for the prevention and treatment of musculoskeletal disorders. This review provides a summary of the activation pathway and mechanism of NLRP3 inflammasomes, and analyzes the role in musculoskeletal disorders such as sarcopenia, osteoporosis and arthritis, with the aim to facilitate the treatment of musculoskeletal disorders.
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Affiliation(s)
- Kaizhi Ding
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China
| | - Yanchun Gong
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China
| | - Xiaonuo Li
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China
| | - Yuanjie Zhu
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China
| | - Lihua Yao
- School of Life Science, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China
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Capobianco CA, Hankenson KD, Knights AJ. Temporal dynamics of immune-stromal cell interactions in fracture healing. Front Immunol 2024; 15:1352819. [PMID: 38455063 PMCID: PMC10917940 DOI: 10.3389/fimmu.2024.1352819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 02/06/2024] [Indexed: 03/09/2024] Open
Abstract
Bone fracture repair is a complex, multi-step process that involves communication between immune and stromal cells to coordinate the repair and regeneration of damaged tissue. In the US, 10% of all bone fractures do not heal properly without intervention, resulting in non-union. Complications from non-union fractures are physically and financially debilitating. We now appreciate the important role that immune cells play in tissue repair, and the necessity of the inflammatory response in initiating healing after skeletal trauma. The temporal dynamics of immune and stromal cell populations have been well characterized across the stages of fracture healing. Recent studies have begun to untangle the intricate mechanisms driving the immune response during normal or atypical, delayed healing. Various in vivo models of fracture healing, including genetic knockouts, as well as in vitro models of the fracture callus, have been implemented to enable experimental manipulation of the heterogeneous cellular environment. The goals of this review are to (1): summarize our current understanding of immune cell involvement in fracture healing (2); describe state-of-the art approaches to study inflammatory cells in fracture healing, including computational and in vitro models; and (3) identify gaps in our knowledge concerning immune-stromal crosstalk during bone healing.
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Affiliation(s)
- Christina A. Capobianco
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, United States
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, United States
| | - Kurt D. Hankenson
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, United States
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, United States
| | - Alexander J. Knights
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, United States
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45
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Lu W, Yan J, Wang C, Qin W, Han X, Qin Z, Wei Y, Xu H, Gao J, Gao C, Ye T, Tay FR, Niu L, Jiao K. Interorgan communication in neurogenic heterotopic ossification: the role of brain-derived extracellular vesicles. Bone Res 2024; 12:11. [PMID: 38383487 PMCID: PMC10881583 DOI: 10.1038/s41413-023-00310-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 11/06/2023] [Accepted: 12/11/2023] [Indexed: 02/23/2024] Open
Abstract
Brain-derived extracellular vesicles participate in interorgan communication after traumatic brain injury by transporting pathogens to initiate secondary injury. Inflammasome-related proteins encapsulated in brain-derived extracellular vesicles can cross the blood‒brain barrier to reach distal tissues. These proteins initiate inflammatory dysfunction, such as neurogenic heterotopic ossification. This recurrent condition is highly debilitating to patients because of its relatively unknown pathogenesis and the lack of effective prophylactic intervention strategies. Accordingly, a rat model of neurogenic heterotopic ossification induced by combined traumatic brain injury and achillotenotomy was developed to address these two issues. Histological examination of the injured tendon revealed the coexistence of ectopic calcification and fibroblast pyroptosis. The relationships among brain-derived extracellular vesicles, fibroblast pyroptosis and ectopic calcification were further investigated in vitro and in vivo. Intravenous injection of the pyroptosis inhibitor Ac-YVAD-cmk reversed the development of neurogenic heterotopic ossification in vivo. The present work highlights the role of brain-derived extracellular vesicles in the pathogenesis of neurogenic heterotopic ossification and offers a potential strategy for preventing neurogenic heterotopic ossification after traumatic brain injury. Brain-derived extracellular vesicles (BEVs) are released after traumatic brain injury. These BEVs contain pathogens and participate in interorgan communication to initiate secondary injury in distal tissues. After achillotenotomy, the phagocytosis of BEVs by fibroblasts induces pyroptosis, which is a highly inflammatory form of lytic programmed cell death, in the injured tendon. Fibroblast pyroptosis leads to an increase in calcium and phosphorus concentrations and creates a microenvironment that promotes osteogenesis. Intravenous injection of the pyroptosis inhibitor Ac-YVAD-cmk suppressed fibroblast pyroptosis and effectively prevented the onset of heterotopic ossification after neuronal injury. The use of a pyroptosis inhibitor represents a potential strategy for the treatment of neurogenic heterotopic ossification.
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Affiliation(s)
- Weicheng Lu
- Department of Stomatology, Tangdu Hospital & State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Jianfei Yan
- Department of Stomatology, Tangdu Hospital & State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Chenyu Wang
- State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Wenpin Qin
- Department of Stomatology, Tangdu Hospital & State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Xiaoxiao Han
- Department of Stomatology, Tangdu Hospital & State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Zixuan Qin
- Department of Stomatology, Tangdu Hospital & State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Yu Wei
- Department of Stomatology, Tangdu Hospital & State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Haoqing Xu
- Department of Stomatology, Tangdu Hospital & State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Jialu Gao
- Department of Stomatology, Tangdu Hospital & State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Changhe Gao
- Department of Stomatology, Tangdu Hospital & State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Tao Ye
- State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Franklin R Tay
- The Dental College of Georgia, Augusta University, Augusta, GA, USA
| | - Lina Niu
- State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Kai Jiao
- Department of Stomatology, Tangdu Hospital & State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration & School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China.
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Subramaniam S, Akay M, Anastasio MA, Bailey V, Boas D, Bonato P, Chilkoti A, Cochran JR, Colvin V, Desai TA, Duncan JS, Epstein FH, Fraley S, Giachelli C, Grande-Allen KJ, Green J, Guo XE, Hilton IB, Humphrey JD, Johnson CR, Karniadakis G, King MR, Kirsch RF, Kumar S, Laurencin CT, Li S, Lieber RL, Lovell N, Mali P, Margulies SS, Meaney DF, Ogle B, Palsson B, A. Peppas N, Perreault EJ, Rabbitt R, Setton LA, Shea LD, Shroff SG, Shung K, Tolias AS, van der Meulen MC, Varghese S, Vunjak-Novakovic G, White JA, Winslow R, Zhang J, Zhang K, Zukoski C, Miller MI. Grand Challenges at the Interface of Engineering and Medicine. IEEE Open J Eng Med Biol 2024; 5:1-13. [PMID: 38415197 PMCID: PMC10896418 DOI: 10.1109/ojemb.2024.3351717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 08/30/2023] [Accepted: 09/03/2023] [Indexed: 02/29/2024] Open
Abstract
Over the past two decades Biomedical Engineering has emerged as a major discipline that bridges societal needs of human health care with the development of novel technologies. Every medical institution is now equipped at varying degrees of sophistication with the ability to monitor human health in both non-invasive and invasive modes. The multiple scales at which human physiology can be interrogated provide a profound perspective on health and disease. We are at the nexus of creating "avatars" (herein defined as an extension of "digital twins") of human patho/physiology to serve as paradigms for interrogation and potential intervention. Motivated by the emergence of these new capabilities, the IEEE Engineering in Medicine and Biology Society, the Departments of Biomedical Engineering at Johns Hopkins University and Bioengineering at University of California at San Diego sponsored an interdisciplinary workshop to define the grand challenges that face biomedical engineering and the mechanisms to address these challenges. The Workshop identified five grand challenges with cross-cutting themes and provided a roadmap for new technologies, identified new training needs, and defined the types of interdisciplinary teams needed for addressing these challenges. The themes presented in this paper include: 1) accumedicine through creation of avatars of cells, tissues, organs and whole human; 2) development of smart and responsive devices for human function augmentation; 3) exocortical technologies to understand brain function and treat neuropathologies; 4) the development of approaches to harness the human immune system for health and wellness; and 5) new strategies to engineer genomes and cells.
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Affiliation(s)
- Shankar Subramaniam
- Joan and Irwin Jacobs Endowed Chair in Bioengineering and Systems Biology, Distinguished Professor of Bioengineering, Computer Science & Engineering, Cellular & Molecular Medicine, and NanoengineeringUniversity of California San DiegoLa JollaCA92093-0412USA
| | - Metin Akay
- Department of Physical Medicine and Rehabilitation, Harvard Medical SchoolSpaulding Rehabilitation HospitalCharlestownMA02129USA
- Founding Chair of the Biomedical Engineering Department and John S. Dunn Professor of Biomedical EngineeringUniversity of HoustonHoustonTX77204-5060USA
- Donald Biggar Willett Professor in Engineering and Head of the Department of BioengineeringUrbanaIL61801USA
- Senior PartnerArtis VenturesSan FranciscoCA94111USA
| | - Mark A. Anastasio
- Department of Physical Medicine and Rehabilitation, Harvard Medical SchoolSpaulding Rehabilitation HospitalCharlestownMA02129USA
| | - Vasudev Bailey
- Department of Physical Medicine and Rehabilitation, Harvard Medical SchoolSpaulding Rehabilitation HospitalCharlestownMA02129USA
| | - David Boas
- Professor of Biomedical Engineering and Director of Neurophotonics CenterBoston University College of EngineeringBostonMA02215USA
| | - Paolo Bonato
- Department of Physical Medicine and Rehabilitation, Harvard Medical SchoolSpaulding Rehabilitation HospitalCharlestownMA02129USA
| | - Ashutosh Chilkoti
- Alan L. Kaganov Professor of Biomedical Engineering and Chair of the Department of Biomedical EngineeringDuke UniversityDurhamNC27708USA
| | - Jennifer R. Cochran
- Senior Associate Vice Provost for Research and Addie and Al Macovski Professor of Bioengineering, Shriram CenterStanford University Schools of Medicine and EngineeringStanfordCA94305USA
| | - Vicki Colvin
- Vernon K Krieble Professor of Chemistry and Professor of EngineeringBrown UniversityProvidenceRI02912USA
| | - Tejal A. Desai
- Sorensen Family Dean of Engineering and Professor of EngineeringBrown UniversityProvidenceRI02912USA
| | - James S. Duncan
- Ebenezer K. Hunt Professor and Chair of Biomedical Engineering, Professor of Radiology & Biomedical ImagingYale UniversityNew HavenCT06520USA
| | - Frederick H. Epstein
- Mac Wade Professor of Biomedical Engineering and Professor of Radiology and Medical Imaging, Associate Dean for ResearchSchool of Engineering and Applied ScienceCharlottesvilleVA22904USA
| | - Stephanie Fraley
- Associate Professor of BioengineeringUniversity of California San DiegoLa JollaCA92093-0412USA
| | - Cecilia Giachelli
- Steven R. and Connie R. Rogel Endowed Professor for Cardiovascular Innovation in BioengineeringAssociate Vice Provost for ResearchSeattleWA98195USA
| | - K. Jane Grande-Allen
- Isabel C. Cameron Professor of Bioengineering, Department of BioengineeringRice UniversityHoustonTX77005USA
| | - Jordan Green
- Biomedical Engineering and Vice Chair for Research and TranslationDepartment of Biomedical EngineeringBaltimoreMD21218USA
| | - X. Edward Guo
- Professor of Biomedical Engineering and Department ChairNew YorkNY10027USA
| | - Isaac B. Hilton
- Assistant Professor of Bioengineering and BioSciencesRice UniversityHoustonTX77005USA
- Department of BioengineeringBioscience Research CollaborativeHoustonTX77030USA
| | - Jay D. Humphrey
- John C. Malone Professor of Biomedical EngineeringYale UniversityNew HavenCT06511USA
| | - Chris R Johnson
- Distinguished Professor of Computer Science, Research Professor of BioengineeringUniversity of UtahSalt Lake CityUT84112-9205USA
| | - George Karniadakis
- The Charles Pitts Robinson and John Palmer Barstow Professor of Applied Mathematics and EngineeringBrown UniversityProvidenceRI02912USA
| | - Michael R. King
- J. Lawrence Wilson Professor of Engineering, Chair, Department of Biomedical Engineering, Professor of Biomedical Engineering, Professor of Radiology and Radiological Sciences5824 Stevenson CenterNashvilleTN351631-1631USA
| | - Robert F. Kirsch
- Allen H. and Constance T. Ford Professor and Chair of Biomedical EngineeringCase Western Reserve UniversityClevelandOH44106USA
- Department of Biomedical EngineeringClevelandOH4410USA
| | - Sanjay Kumar
- California Institute for Quantitative BiosciencesUC BerkeleyBerkeleyCA94720USA
| | - Cato T. Laurencin
- University Professor and Albert and Wilda Van Dusen Distinguished Endowed Professor of Orthopaedic Surgery, CEO, The Cato T. Laurencin Institute for Regenerative EngineeringUconnFarmingtonCT06030-3711USA
| | - Song Li
- Department of BioengineeringUCLA Samueli School of EngineeringLos AngelesCA90095USA
| | - Richard L. Lieber
- Chief Scientific Officer and Senior Vice President, Shirley Ryan Ability Lab, Professor of Physiology and Biomedical EngineeringNorthwestern UniversityEvanstonIL60208USAUSA
| | - Nigel Lovell
- Graduate School of Biomedical EngineeringUniversity of New South WalesSydneyNSW2052Australia
| | - Prashant Mali
- Professor of BioengineeringUniversity of California San DiegoLa JollaCA92093-0412USA
| | - Susan S. Margulies
- Wallace H. Coulter Chair and Professor of Biomedical EngineeringGeorgia Institute of Technology and Emory UniversityAtlantaGA30332USA
| | - David F. Meaney
- Professor and Senior Associate DeanPenn EngineeringPhiladelphiaPA19104-6391USA
| | - Brenda Ogle
- Department of Biomedical Engineering, Professor, Department of Pediatrics, Director, Stem Cell InstituteUniversity of Minnesota-Twin CitiesMinneapolisMN55455USA
| | - Bernhard Palsson
- Y.C. Fung Endowed Professor in Bioengineering, Professor of PediatricsUniversity of California San DiegoLa JollaCA92093-0412USA
| | - Nicholas A. Peppas
- Cockrell Family Regents Chair in Engineering, Director, Institute of Biomaterials, Drug Delivery and Regenerative Medicine, Professor, McKetta Department of Chemical Engineering, Department of Biomedical Engineering, Department of Pediatrics, Department of Surgery and Perioperative Care, Dell Medical School, and Division of Molecular Pharmaceutics and Drug Delivery, College of PharmacyThe University of Texas at AustinAustinTX78712-1801USA
| | - Eric J. Perreault
- Vice President for Research, Professor of Biomedical Engineering, Professor of Physical Medicine and RehabilitationNorthwestern UniversityEvanstonIL60208USA
| | - Rick Rabbitt
- Professor of Biomedical Engineering, Neuroscience ProgramSal Lake CityUT84112USA
| | - Lori A. Setton
- Department Chair, Lucy & Stanley Lopata Distinguished Professor of Biomedical EngineeringWashington University in St. Louis, McKelvey School of EngineeringSt. LouisMO63130USA
| | - Lonnie D. Shea
- Biomedical EngineeringUniversity of MichiganAnn ArborMI48109USA
| | - Sanjeev G. Shroff
- Distinguished Professor of and Gerald E. McGinnis Chair in Bioengineering, Professor of Medicine, Swanson School of EngineeringUniversity of PittsburghPittsburghPA15261USA
| | - Kirk Shung
- Professor Emeritus of Biomedical Engineering, Alfred E. Mann Department of Biomedical EngineeringUniversity of Southern CaliforniaLos AngelesCA90089USA
| | | | | | - Shyni Varghese
- Professor of Biomedical Engineering, Mechanical Engineering & Materials Science and OrthopaedicsDuke UniversityDurhamNC27710USA
| | - Gordana Vunjak-Novakovic
- University and Mikati Foundation Professor of Biomedical Engineering and Medical SciencesColumbia UniversityNew YorkNY10027USA
| | - John A. White
- Professor and Chair Department of Biomedical EngineeringBoston UniversityBostonMA02215USA
| | - Raimond Winslow
- Director of Life Science and Medical Research; Professor of BioengineeringNortheastern UniversityPortlandME04101USA
| | - Jianyi Zhang
- Department of Biomedical Engineering, T. Michael and Gillian Goodrich Endowed Chair of Engineering Leadership, Professor of Medicine, of Engineering, School of Medicine, School of EngineeringUAB | The University of Alabama at BirminghamU.K.
| | - Kun Zhang
- Chair/Professor of BioengineeringUniversity of California San DiegoLa JollaCA92093-0412USA
| | - Charles Zukoski
- Shelly and Ofer Nemirovsky Provost's Chair and Professor of Chemical Engineering and Materials Science and Biomedical Engineering, Alfred E. Mann Department of Biomedical EngineeringUniversity of Southern CaliforniaLos AngelesCA90089USA
| | - Michael I. Miller
- Bessie Darling Massey Professor and Director, Department of Biomedical Engineering, Co-Director, Kavli Neuroscience Discovery InstituteJohns Hopkins University School of Medicine and Whiting School of EngineeringBaltimoreMD21218USA
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Wang S, Shao C, Zhao X, Guo Y, Song H, Shen L, Zhou Z, Li Z. Application of Three-Dimension Printing Nano-Carbonated-Hydroxylapatite to the Repair of Defects in Rabbit Bone. Int J Nanomedicine 2024; 19:1667-1681. [PMID: 38406604 PMCID: PMC10894707 DOI: 10.2147/ijn.s439775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 02/13/2024] [Indexed: 02/27/2024] Open
Abstract
Introduction Hydroxylapatite (HAp) is a biodegradable bone graft material with high biocompatibility. However, the clinical application of HAp has been limited due to the poor absorption rate in vivo. Methods In this study, carbonated hydroxylapatite (CHAp) with a chemical composition similar to natural bone was synthesized. HAp and CHAp scaffolds were fabricated by 3D printing. Each material was designed by two types of scaffold model with a maximum width of 8 mm and a thickness of 2 mm, ie, structure I (round shape) and structure II (grid shape). Then, the HAp scaffolds were loaded with lutein. These scaffolds were implanted into the 8 mm bone defect on the top of the rabbit skull within 3 hours in the morning. The curative effects of the scaffolds were assessed two months after implantation. Results The 3D printed scaffolds did not cause severe inflammation or rejection after implantation. It showed that the porous structures allow bone cells to enter into the scaffolds. Furthermore, CHAp scaffolds were more biocompatible than HAp scaffolds, and showed a higher level of degradation and new bone formation after implantation. Structure II scaffolds with a smaller mineral content degraded faster than structure I, while structure I had better osteoconductive properties than structure II. Besides, the addition of lutein significantly enhanced the rate of new bone formation. Discussion The uniqueness of this study lies in the synthesis of 3D printed CHAp scaffolds and the implantation of CHAp in rabbit bone defects. The incorporation of suitable carbonate and lutein into HAp can enhance the osteoinductivity of the graft, and CHAp has a faster degradation rate in vivo, all of which provide a new reference for the research and application of apatite-based composites.
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Affiliation(s)
- Shujie Wang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, People’s Republic of China
- College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang Agriculture and Forestry University, Hangzhou, Zhejiang, 311300, People’s Republic of China
| | - Chunyan Shao
- College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang Agriculture and Forestry University, Hangzhou, Zhejiang, 311300, People’s Republic of China
| | - Xingkai Zhao
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, People’s Republic of China
| | - Yizhe Guo
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, People’s Republic of China
| | - Houhui Song
- College of Animal Science and Technology & College of Veterinary Medicine, Zhejiang Agriculture and Forestry University, Hangzhou, Zhejiang, 311300, People’s Republic of China
| | - Lida Shen
- College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu, 210016, People’s Republic of China
| | - Zhenlei Zhou
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, People’s Republic of China
| | - Zhen Li
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, People’s Republic of China
- State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, Nanjing, Jiangsu, 210008, People’s Republic of China
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Liu Y, Zhang X, Wang W, Liu T, Ren J, Chen S, Lu T, Tie Y, Yuan X, Mo F, Yang J, Wei Y, Wei X. Author Correction: Ammonia promotes the proliferation of bone marrow-derived mesenchymal stem cells by regulating the Akt/mTOR/S6k pathway. Bone Res 2024; 12:9. [PMID: 38378665 PMCID: PMC10879115 DOI: 10.1038/s41413-024-00314-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024] Open
Affiliation(s)
- Yu Liu
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, PR China
| | - Xiangxian Zhang
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, PR China
| | - Wei Wang
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, PR China
| | - Ting Liu
- Department of Clinical Laboratory, The West China Second University Hospital of Sichuan University (WCSUH-SCU), Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, PR China
| | - Jun Ren
- Department of Prenatal Diagnosis Center, The West China Second University Hospital of Sichuan University (WCSUH-SCU), Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, PR China
| | - Siyuan Chen
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, PR China
| | - Tianqi Lu
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, PR China
| | - Yan Tie
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, PR China
| | - Xia Yuan
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, PR China
| | - Fei Mo
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, PR China
| | - Jingyun Yang
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, PR China
| | - Yuquan Wei
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, PR China
| | - Xiawei Wei
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 17, Block 3, Southern Renmin Road, Chengdu, Sichuan, 610041, PR China.
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Ren D, Wei K, Ifegwu I. A 50-Year-Old Man Presenting with Multiple Bone Lesions and a Diagnosis of Phosphaturic Mesenchymal Tumor of the Femur. Am J Case Rep 2024; 25:e942810. [PMID: 38361352 PMCID: PMC10877641 DOI: 10.12659/ajcr.942810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 01/08/2024] [Accepted: 12/21/2023] [Indexed: 02/17/2024]
Abstract
BACKGROUND Phosphaturic mesenchymal tumor (PMT) is an extremely rare mesenchymal neoplasm that is commonly seen in bone and soft tissue. It is associated with a paraneoplastic syndrome, oncogenic osteomalacia, due to tumor-induced urinary phosphate wasting. It is demonstrated to be predominantly mediated by fibroblast growth factor 23 (FGF23)/fibroblast growth factor receptor 1 (FGFR1) axis. Clinically, PMT usually presents as a solitary lesion in the bone. The diagnosis of PMT is challenging due to its non-specific clinical manifestation, radiologic findings, and morphological features. CASE REPORT We report the case of a 50-year-old man presenting with multiple lytic bone lesions and associated pathologic fracture of the right femur, clinically suspicious for multiple myeloma or other metastatic malignant process. Resection from the right femur showed a hypercellular lesion composed of oval-to-spindled cells infiltrating the native trabecular bone with admixed multinucleated giant cells. Immunohistochemical (IHC) staining and in situ hybridization (ISH) demonstrated the tumor cells were positive for SATB2, ERG, FGFR1, and FGF23 ISH. DNA and RNA next-generation sequencing showed marked increases in mRNA levels of FGF23 and FGFR1. The constellation of clinicoradiologic, histomorphologic, IHC, and molecular findings supported a diagnosis of primary benign PMT. CONCLUSIONS This case report discusses a patient with PMT presenting with multifocal lesions due to tumor-induced osteomalacia at initial presentation. We hope that this report will increase the awareness of clinician and pathologists of PMT as a differential diagnosis in patients presenting with multifocal lytic bone lesions. In turn, this will prevent misdiagnosis and overtreatment of a typically benign process.
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Affiliation(s)
- Dong Ren
- Department of Pathology, University of California Irvine Medical Center, Orange, CA, USA
- Department of Laboratory Medicine, University of California Irvine Medical Center, Orange, CA, USA
| | - Katherine Wei
- Department of Radiology, University of California Irvine Medical Center, Orange, CA, USA
| | - Ibe Ifegwu
- Department of Pathology, University of California Irvine Medical Center, Orange, CA, USA
- Department of Laboratory Medicine, University of California Irvine Medical Center, Orange, CA, USA
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Zou J, Chen H, Fan X, Qiu Z, Zhang J, Sun J. Garcinol prevents oxidative stress-induced bone loss and dysfunction of BMSCs through NRF2-antioxidant signaling. Cell Death Discov 2024; 10:82. [PMID: 38365768 PMCID: PMC10873372 DOI: 10.1038/s41420-024-01855-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 02/01/2024] [Accepted: 02/07/2024] [Indexed: 02/18/2024] Open
Abstract
There are multiple published data showing that excessive oxidative stress contributes to bone loss and even bone tissue damage, and it is also correlated with the pathophysiology of bone degenerative diseases, including osteoporosis (OP). Garcinol, a polyisoprenylated benzophenone derivative, has been recently established as an anti-oxidant agent. However, it remains elusive whether Garcinol protects bone marrow mesenchymal stem cells (BMSCs) and bone tissue from oxidative stress-induced damage. Here, we explored the potential effects of Garcinol supplementation in ameliorating oxidative stimulation-induced dysfunction of BMSCs and bone loss in osteoporotic mice. In this study, we verified that Garcinol exerted potent protective functions in the hydrogen peroxide (H2O2)-induced excessive oxidative stress and dysfunction of BMSCs. Besides, Garcinol was also identified to improve the reduced bone mass and abnormal lineage commitment of BMSCs in the condition of OP by suppressing the oxidative stimulation. Subsequent analysis revealed that nuclear factor erythroid 2-related factor 2 (NRF2) might be a key regulator in the sheltering effects of Garcinol on the H2O2-regulated oxidative stress, and the protective functions of Garcinol was mediated by NRF2-antioxidant signaling. Collectively, Garcinol prevented oxidative stress-related BMSC damage and bone loss through the NRF2-antioxidant signaling, which suggested the promising therapeutic values of Garcinol in the treatment of oxidative stress-related bone loss. Therefore, Garcinol might contribute to treating OP.
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Affiliation(s)
- Jilong Zou
- Department of Orthopaedics, the First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hongjun Chen
- Department of Orthopaedics, the First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xinming Fan
- Department of Orthopaedics, the First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhenrui Qiu
- Department of Orthopaedics, the First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jiale Zhang
- Department of Orthopaedics, the First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jiabing Sun
- Department of Orthopaedics, the First Affiliated Hospital of Harbin Medical University, Harbin, China.
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