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Li J, Ding J, Wu H, Lu C, Wu J, Luo Q. Tat-CIRP Peptide Facilitates Frozen Wound Healing by Ameliorating Inflammation and Promoting Angiogenesis. J Inflamm Res 2024; 17:2205-2215. [PMID: 38623470 PMCID: PMC11017987 DOI: 10.2147/jir.s450288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 04/04/2024] [Indexed: 04/17/2024] Open
Abstract
Background Frostbite is a chemia resulting from cold-induced skin damage. The process of frostbite is often accompanied by inflammation, and the therapeutic strategies focusing on anti-inflammation are the main direction to data. Tat-CIRP is a 15 amino acid peptide containing HIV protein and cold-inducible RNA-binding protein (CIRP), which is believed to compete with endogenous CIRP for myeloid differentiation 2 (MD2) binding. This study aims to investigate the efficacy of Tat-CIRP in the treatment of frostbite. Methods A mouse model of frostbite was established, and on the first day after frostbite occurrence, Tat-CIRP peptide was administered intravenously via the tail with a dosage interval of one day for a total of three doses. Frozen mouse skin sections were subjected to histological analysis, including hematoxylin-eosin (HE) staining, Masson staining, and immunohistochemical examination. Western blotting was performed to detect the expression level of Ki-67 in mouse skin tissue. Results One day after frostbite, mice exhibited skin swelling and a solid appearance. From day 1 to 5 after frostbite, MD2 expression was significantly upregulated, while CIRP expression was downregulated. Compared to the frostbite group, mice treated with Tat-CIRP showed accelerated frostbite recovery, reduced levels of inflammatory factors and MD2. Furthermore, the expression of cell proliferation-associated protein Ki-67 and angiogenesis-related protein CD31 was upregulated. Conclusion Tat-CIRP promotes frozen wound healing via inhibiting inflammation and promoting angiogenesis in frostbitten mice.
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Affiliation(s)
- Jiayan Li
- Department of Hypoxic Biomedicine, Institute of Special Environmental Medicine and Coinnovation Center of Neuroregeneration, Nantong University, Nantong, 226019, People’s Republic of China
| | - Jie Ding
- Department of Hypoxic Biomedicine, Institute of Special Environmental Medicine and Coinnovation Center of Neuroregeneration, Nantong University, Nantong, 226019, People’s Republic of China
| | - Haoyang Wu
- Department of Hypoxic Biomedicine, Institute of Special Environmental Medicine and Coinnovation Center of Neuroregeneration, Nantong University, Nantong, 226019, People’s Republic of China
| | - Chenyan Lu
- Department of Hypoxic Biomedicine, Institute of Special Environmental Medicine and Coinnovation Center of Neuroregeneration, Nantong University, Nantong, 226019, People’s Republic of China
| | - Jian Wu
- Department of Pharmacy, Huashan Hospital, Fudan University, Shanghai, 200040, People’s Republic of China
| | - Qianqian Luo
- Department of Hypoxic Biomedicine, Institute of Special Environmental Medicine and Coinnovation Center of Neuroregeneration, Nantong University, Nantong, 226019, People’s Republic of China
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Sun M, Huang X, Ruan X, Shang X, Zhang M, Liu L, Wang P, An P, Lin Y, Yang J, Xue Y. Cpeb4-mediated Dclk2 promotes neuronal pyroptosis induced by chronic cerebral ischemia through phosphorylation of Ehf. J Cereb Blood Flow Metab 2024:271678X241240590. [PMID: 38513137 DOI: 10.1177/0271678x241240590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Chronic cerebral ischemia (CCI) is a clinical syndrome characterised by brain dysfunction due to decreased chronic cerebral perfusion. CCI initiates several inflammatory pathways, including pyroptosis. RNA-binding proteins (RBPs) play important roles in CCI. This study aimed to explore whether the interaction between RBP-Cpeb4 and Dclk2 affected Ehf phosphorylation to regulate neuronal pyroptosis. HT22 cells and mice were used to construct oxygen glucose deprivation (OGD)/CCI models. We found that Cpeb4 and Dclk2 were upregulated in OGD-treated HT22 cells and CCI-induced hippocampal CA1 tissues. Cpeb4 upregulated Dclk2 expression by increasing Dclk2 mRNA stability. Knockdown of Cpeb4 or Dclk2 inhibited neuronal pyroptosis in OGD-treated HT22 cells and CCI-induced hippocampal CA1 tissues. By binding to the promoter regions of Caspase1 and Caspase3, the transcription factor Ehf reduced their promoter activities and inhibited the transcription. Dclk2 phosphorylated Ehf and changed its nucleoplasmic distribution, resulting in the exit of p-Ehf from the nucleus and decreased Ehf levels. It promoted the expression of Caspase1 and Caspase3 and stimulated neuronal pyroptosis of HT22 cells induced by OGD. Cpeb4/Dclk2/Ehf pathway plays an important role in the regulation of cerebral ischemia-induced neuronal pyroptosis.
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Affiliation(s)
- Miao Sun
- Department of Neurobiology, School of life Sciences, China Medical University, Shenyang, China
- Key Laboratory of Neuro-Oncology in Liaoning Province, Shenyang, China
| | - Xin Huang
- Department of Radiology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xuelei Ruan
- Department of Neurobiology, School of life Sciences, China Medical University, Shenyang, China
- Key Laboratory of Neuro-Oncology in Liaoning Province, Shenyang, China
| | - Xiuli Shang
- Department of Neurology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Mengyang Zhang
- Department of Neurobiology, School of life Sciences, China Medical University, Shenyang, China
- Key Laboratory of Neuro-Oncology in Liaoning Province, Shenyang, China
| | - Libo Liu
- Department of Neurobiology, School of life Sciences, China Medical University, Shenyang, China
- Key Laboratory of Neuro-Oncology in Liaoning Province, Shenyang, China
| | - Ping Wang
- Department of Neurobiology, School of life Sciences, China Medical University, Shenyang, China
- Key Laboratory of Neuro-Oncology in Liaoning Province, Shenyang, China
| | - Ping An
- Department of Neurobiology, School of life Sciences, China Medical University, Shenyang, China
- Key Laboratory of Neuro-Oncology in Liaoning Province, Shenyang, China
| | - Yang Lin
- Department of Neurobiology, School of life Sciences, China Medical University, Shenyang, China
- Key Laboratory of Neuro-Oncology in Liaoning Province, Shenyang, China
| | - Jin Yang
- Key Laboratory of Neuro-Oncology in Liaoning Province, Shenyang, China
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yixue Xue
- Department of Neurobiology, School of life Sciences, China Medical University, Shenyang, China
- Key Laboratory of Neuro-Oncology in Liaoning Province, Shenyang, China
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Azubuike-Osu SO, Kuhs A, Götz P, Faro A, Preissner KT, Arnholdt C, Deindl E. Treatment with Cobra Venom Factor Decreases Ischemic Tissue Damage in Mice. Biomedicines 2024; 12:309. [PMID: 38397911 PMCID: PMC10886846 DOI: 10.3390/biomedicines12020309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 01/23/2024] [Accepted: 01/27/2024] [Indexed: 02/25/2024] Open
Abstract
Tissue ischemia, caused by the blockage of blood vessels, can result in substantial damage and impaired tissue performance. Information regarding the functional contribution of the complement system in the context of ischemia and angiogenesis is lacking. To investigate the influence of complement activation and depletion upon femoral artery ligation (FAL), Cobra venom factor (CVF) (that functionally resembles C3b, the activated form of complement component C3) was applied in mice in comparison to control mice. Seven days after induction of muscle ischemia through FAL, gastrocnemius muscles of mice were excised and subjected to (immuno-)histological analyses. H&E and apoptotic cell staining (TUNEL) staining revealed a significant reduction in ischemic tissue damage in CVF-treated mice compared to controls. The control mice, however, exhibited a significantly higher capillary-to-muscle fiber ratio and a higher number of proliferating endothelial cells (CD31+/CD45-/BrdU+). The total number of leukocytes (CD45+) substantially decreased in CVF-treated mice versus control mice. Moreover, the CVF-treated group displayed a shift towards the M2-like anti-inflammatory and regenerative macrophage phenotype (CD68+/MRC1+). In conclusion, our findings suggest that treatment with CVF leads to reduced ischemic tissue damage along with decreased leukocyte recruitment but increased numbers of M2-like polarized macrophages, thereby enhancing tissue regeneration, repair, and healing.
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Affiliation(s)
- Sharon O. Azubuike-Osu
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany or (S.O.A.-O.); (A.K.); (P.G.); (A.F.); (C.A.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
- Department of Physiology, Faculty of Basic Medical Sciences, College of Medicine, Alex Ekwueme Federal University Ndufu Alike, Abakaliki 482131, Ebonyi, Nigeria
| | - Amelie Kuhs
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany or (S.O.A.-O.); (A.K.); (P.G.); (A.F.); (C.A.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Philipp Götz
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany or (S.O.A.-O.); (A.K.); (P.G.); (A.F.); (C.A.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Anna Faro
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany or (S.O.A.-O.); (A.K.); (P.G.); (A.F.); (C.A.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Klaus T. Preissner
- Department of Cardiology, Kerckhoff-Heart Research Institute, Faculty of Medicine, Justus Liebig University, 35392 Giessen, Germany;
| | - Christoph Arnholdt
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany or (S.O.A.-O.); (A.K.); (P.G.); (A.F.); (C.A.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Elisabeth Deindl
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany or (S.O.A.-O.); (A.K.); (P.G.); (A.F.); (C.A.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
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Bazid H, Shoeib M, Elsayed A, Mostafa M, Shoeib M, El Gayed EMA, Abdallah R. Expression of cold-inducible RNA binding protein in psoriasis. J Immunoassay Immunochem 2022; 43:384-402. [DOI: 10.1080/15321819.2022.2039183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Heba Bazid
- Dermatology and Andrology Department, Faculty of Medicine, Menoufia University
| | - Mohamed Shoeib
- Clinical Pathology Department, National Research Center, Cairo, Egypt
| | - Asmaa Elsayed
- Dermatology and Andrology Department, National Research Center, Cairo, Egypt
| | - Mohammed Mostafa
- Medical Biochemistry Depaetment, Faculty of Medicine, Menoufia University
| | - May Shoeib
- Pathology Department, Faculty of Medicine, Menoufia University
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Arteriogenesis and Therapeutic Angiogenesis-An Update. Int J Mol Sci 2021; 22:ijms222413244. [PMID: 34948041 PMCID: PMC8709312 DOI: 10.3390/ijms222413244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 12/06/2021] [Indexed: 11/17/2022] Open
Abstract
Vascular occlusive diseases such myocardial infarction, peripheral artery disease of the lower extremities, or stroke still represent a substantial health burden worldwide [...].
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Cold-Inducible RNA-Binding Protein but Not Its Antisense lncRNA Is a Direct Negative Regulator of Angiogenesis In Vitro and In Vivo via Regulation of the 14q32 angiomiRs-microRNA-329-3p and microRNA-495-3p. Int J Mol Sci 2021; 22:ijms222312678. [PMID: 34884485 PMCID: PMC8657689 DOI: 10.3390/ijms222312678] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 11/04/2021] [Accepted: 11/20/2021] [Indexed: 12/14/2022] Open
Abstract
Inhibition of the 14q32 microRNAs, miR-329-3p and miR-495-3p, improves post-ischemic neovascularization. Cold-inducible RNA-binding protein (CIRBP) facilitates maturation of these microRNAs. We hypothesized that CIRBP deficiency improves post-ischemic angiogenesis via downregulation of 14q32 microRNA expression. We investigated these regulatory mechanisms both in vitro and in vivo. We induced hindlimb ischemia in Cirp−/− and C57Bl/6-J mice, monitored blood flow recovery with laser Doppler perfusion imaging, and assessed neovascularization via immunohistochemistry. Post-ischemic angiogenesis was enhanced in Cirp−/− mice by 34.3% with no effects on arteriogenesis. In vivo at day 7, miR-329-3p and miR-495-3p expression were downregulated in Cirp−/− mice by 40.6% and 36.2%. In HUVECs, CIRBP expression was upregulated under hypothermia, while miR-329-3p and miR-495-3p expression remained unaffected. siRNA-mediated CIRBP knockdown led to the downregulation of CIRBP-splice-variant-1 (CIRBP-SV1), CIRBP antisense long noncoding RNA (lncRNA-CIRBP-AS1), and miR-495-3p with no effects on the expression of CIRBP-SV2-4 or miR-329-3p. siRNA-mediated CIRBP knockdown improved HUVEC migration and tube formation. SiRNA-mediated lncRNA-CIRBP-AS1 knockdown had similar long-term effects. After short incubation times, however, only CIRBP knockdown affected angiogenesis, indicating that the effects of lncRNA-CIRBP-AS1 knockdown were secondary to CIRBP-SV1 downregulation. CIRBP is a negative regulator of angiogenesis in vitro and in vivo and acts, at least in part, through the regulation of miR-329-3p and miR-495-3p.
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Kübler M, Götz P, Braumandl A, Beck S, Ishikawa-Ankerhold H, Deindl E. Impact of C57BL/6J and SV-129 Mouse Strain Differences on Ischemia-Induced Postnatal Angiogenesis and the Associated Leukocyte Infiltration in a Murine Hindlimb Model of Ischemia. Int J Mol Sci 2021; 22:ijms222111795. [PMID: 34769229 PMCID: PMC8584150 DOI: 10.3390/ijms222111795] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/23/2021] [Accepted: 10/27/2021] [Indexed: 12/11/2022] Open
Abstract
Strain-related differences in arteriogenesis in inbred mouse strains have already been studied excessively. However, these analyses missed evaluating the mouse strain-related differences in ischemia-induced angiogenic capacities. With the present study, we wanted to shed light on the different angiogenic potentials and the associated leukocyte infiltration of C57BL/6J and SV-129 mice to facilitate the comparison of angiogenesis-related analyses between these strains. For the induction of angiogenesis, we ligated the femoral artery in 8-12-week-old male C57BL/6J and SV-129 mice and performed (immuno-) histological analyses on the ischemic gastrocnemius muscles collected 24 h or 7 days after ligation. As evidenced by hematoxylin and eosin staining, C57BL/6J mice showed reduced tissue damage but displayed an increased capillary-to-muscle fiber ratio and an elevated number of proliferating capillaries (CD31+/BrdU+ cells) compared to SV-129 mice, thus showing improved angiogenesis. Regarding the associated leukocyte infiltration, we found increased numbers of neutrophils (MPO+ cells), NETs (MPO+/CitH3+/DAPI+), and macrophages (CD68+ cells) in SV-129 mice, whereas macrophage polarization (MRC1- vs. MRC1+) and total leukocyte infiltration (CD45+ cells) did not differ between the mouse strains. In summary, we show increased ischemia-induced angiogenic capacities in C57BL/6J mice compared to SV-129 mice, with the latter showing aggravated tissue damage, inflammation, and impaired angiogenesis.
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Affiliation(s)
- Matthias Kübler
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (M.K.); (P.G.); (A.B.); (S.B.); (H.I.-A.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Philipp Götz
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (M.K.); (P.G.); (A.B.); (S.B.); (H.I.-A.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Anna Braumandl
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (M.K.); (P.G.); (A.B.); (S.B.); (H.I.-A.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Sebastian Beck
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (M.K.); (P.G.); (A.B.); (S.B.); (H.I.-A.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Hellen Ishikawa-Ankerhold
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (M.K.); (P.G.); (A.B.); (S.B.); (H.I.-A.)
- Department of Internal Medicine I, Faculty of Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany
| | - Elisabeth Deindl
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (M.K.); (P.G.); (A.B.); (S.B.); (H.I.-A.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
- Correspondence: ; Tel.: +49-(0)-89-2180-76504
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