1
|
Geraghty T, Obeidat AM, Ishihara S, Wood MJ, Li J, Lopes EBP, Scanzello CR, Griffin TM, Malfait AM, Miller RE. Age-Associated Changes in Knee Osteoarthritis, Pain-Related Behaviors, and Dorsal Root Ganglia Immunophenotyping of Male and Female Mice. Arthritis Rheumatol 2023; 75:1770-1780. [PMID: 37096632 PMCID: PMC10543384 DOI: 10.1002/art.42530] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 02/07/2023] [Accepted: 03/28/2023] [Indexed: 04/26/2023]
Abstract
OBJECTIVE Osteoarthritis (OA) is a leading cause of chronic pain, yet OA pain management remains poor. Age is the strongest predictor of OA development, and mechanisms driving OA pain are unclear. We undertook this study to characterize age-associated changes in knee OA, pain-related behaviors, and dorsal root ganglion (DRG) molecular phenotypes in mice of both sexes. METHODS Male or female C57BL/6 mice 6 or 20 months of age were evaluated for histopathologic knee OA, pain-related behaviors, and L3-L5 DRG immune characterization via flow cytometry. DRG gene expression in older mice and humans was also examined. RESULTS Male mice at 20 months of age had worse cartilage degeneration than 6-month-old mice. Older female mouse knees showed increased cartilage degeneration but to a lesser degree than those of male mice. Older mice of both sexes had worse mechanical allodynia, knee hyperalgesia, and grip strength compared to younger mice. For both sexes, DRGs from older mice showed decreased CD45+ cells and a significant increase in F4/80+ macrophages and CD11c+ dendritic cells. Older male mouse DRGs showed increased expression of Ccl2 and Ccl5, and older female mouse DRGs showed increased Cxcr4 and Ccl3 expression compared to 6-month-old mouse DRGs, among other differentially expressed genes. Human DRG analysis from 6 individuals >80 years of age revealed elevated CCL2 in men compared to women, whereas CCL3 was higher in DRGs from women. CONCLUSION We found that aging in male and female mice is accompanied by mild knee OA, mechanical sensitization, and changes to immune cell populations in the DRG, suggesting novel avenues for development of OA therapies.
Collapse
Affiliation(s)
- Terese Geraghty
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, Chicago, IL, USA
| | - Alia M. Obeidat
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, Chicago, IL, USA
| | - Shingo Ishihara
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, Chicago, IL, USA
| | - Matthew J. Wood
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, Chicago, IL, USA
| | - Jun Li
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, Chicago, IL, USA
| | | | - Carla R. Scanzello
- Department of Medicine, Division of Rheumatology, University of Pennsylvania, Philadelphia, PA, USA
- Translational Musculoskeletal Research Center, Corp. Michael J. Crescenz VA Medical Center, Philadelphia, PA
| | - Timothy M. Griffin
- Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
- OKC Veterans Affairs Medical Center, Oklahoma City, OK, USA
| | - Anne-Marie Malfait
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, Chicago, IL, USA
| | - Rachel E. Miller
- Department of Internal Medicine, Division of Rheumatology, Rush University Medical Center, Chicago, IL, USA
| |
Collapse
|
2
|
Karakaslar EO, Katiyar N, Hasham M, Youn A, Sharma S, Chung C, Marches R, Korstanje R, Banchereau J, Ucar D. Transcriptional activation of Jun and Fos members of the AP-1 complex is a conserved signature of immune aging that contributes to inflammaging. Aging Cell 2023; 22:e13792. [PMID: 36840360 PMCID: PMC10086525 DOI: 10.1111/acel.13792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 12/20/2022] [Accepted: 01/25/2023] [Indexed: 02/26/2023] Open
Abstract
Diverse mouse strains have different health and life spans, mimicking the diversity among humans. To capture conserved aging signatures, we studied long-lived C57BL/6J and short-lived NZO/HILtJ mouse strains by profiling transcriptomes and epigenomes of immune cells from peripheral blood and the spleen from young and old mice. Transcriptional activation of the AP-1 transcription factor complex, particularly Fos, Junb, and Jun genes, was the most significant and conserved aging signature across tissues and strains. ATAC-seq data analyses showed that the chromatin around these genes was more accessible with age and there were significantly more binding sites for these TFs with age across all studied tissues, targeting pro-inflammatory molecules including Il6. Age-related increases in binding sites of JUN and FOS factors were also conserved in human peripheral blood ATAC-seq data. Single-cell RNA-seq data from the mouse aging cell atlas Tabula Muris Senis showed that the expression of these genes increased with age in B, T, NK cells, and macrophages, with macrophages from old mice expressing these molecules more abundantly than other cells. Functional data showed that upon myeloid cell activation via poly(I:C), the levels of JUN protein and its binding activity increased more significantly in spleen cells from old compared to young mice. In addition, upon activation, old cells produced more IL6 compared to young cells. In sum, we showed that the aging-related transcriptional activation of Jun and Fos family members in AP-1 complex is conserved across immune tissues and long- and short-living mouse strains, possibly contributing to increased inflammation with age.
Collapse
Affiliation(s)
- Emin Onur Karakaslar
- The Jackson Laboratory for Genomic MedicineFarmingtonConnecticutUSA
- Leiden University Medical Center (LUMC)LeidenThe Netherlands
| | - Neerja Katiyar
- The Jackson Laboratory for Genomic MedicineFarmingtonConnecticutUSA
| | - Muneer Hasham
- The Jackson Laboratory for Mammalian GeneticsBar HarborMaineUSA
| | | | | | - Cheng‐han Chung
- The Jackson Laboratory for Genomic MedicineFarmingtonConnecticutUSA
| | - Radu Marches
- The Jackson Laboratory for Genomic MedicineFarmingtonConnecticutUSA
| | - Ron Korstanje
- The Jackson Laboratory for Mammalian GeneticsBar HarborMaineUSA
| | - Jacques Banchereau
- The Jackson Laboratory for Genomic MedicineFarmingtonConnecticutUSA
- ImmunaiNew YorkNew YorkUSA
| | - Duygu Ucar
- The Jackson Laboratory for Genomic MedicineFarmingtonConnecticutUSA
- Department of Genetics and Genome SciencesUniversity of Connecticut Health CenterFarmingtonConnecticutUSA
| |
Collapse
|
3
|
McGinley LM, Chen KS, Mason SN, Rigan DM, Kwentus JF, Hayes JM, Glass ED, Reynolds EL, Murphy GG, Feldman EL. Monoclonal antibody-mediated immunosuppression enables long-term survival of transplanted human neural stem cells in mouse brain. Clin Transl Med 2022; 12:e1046. [PMID: 36101963 PMCID: PMC9471059 DOI: 10.1002/ctm2.1046] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 08/14/2022] [Accepted: 08/23/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND As the field of stem cell therapy advances, it is important to develop reliable methods to overcome host immune responses in animal models. This ensures survival of transplanted human stem cell grafts and enables predictive efficacy testing. Immunosuppressive drugs derived from clinical protocols are frequently used but are often inconsistent and associated with toxic side effects. Here, using a molecular imaging approach, we show that immunosuppression targeting costimulatory molecules CD4 and CD40L enables robust survival of human xenografts in mouse brain, as compared to conventional tacrolimus and mycophenolate mofetil. METHODS Human neural stem cells were modified to express green fluorescent protein and firefly luciferase. Cells were implanted in the fimbria fornix of the hippocampus and viability assessed by non-invasive bioluminescent imaging. Cell survival was assessed using traditional pharmacologic immunosuppression as compared to monoclonal antibodies directed against CD4 and CD40L. This paradigm was also implemented in a transgenic Alzheimer's disease mouse model. RESULTS Graft rejection occurs within 7 days in non-immunosuppressed mice and within 14 days in mice on a traditional regimen. The addition of dual monoclonal antibody immunosuppression extends graft survival past 7 weeks (p < .001) on initial studies. We confirm dual monoclonal antibody treatment is superior to either antibody alone (p < .001). Finally, we demonstrate robust xenograft survival at multiple cell doses up to 6 months in both C57BL/6J mice and a transgenic Alzheimer's disease model (p < .001). The dual monoclonal antibody protocol demonstrated no significant adverse effects, as determined by complete blood counts and toxicity screen. CONCLUSIONS This study demonstrates an effective immunosuppression protocol for preclinical testing of stem cell therapies. A transition towards antibody-based strategies may be advantageous by enabling stem cell survival in preclinical studies that could inform future clinical trials.
Collapse
Affiliation(s)
- Lisa M. McGinley
- Department of NeurologyUniversity of MichiganAnn ArborMichiganUSA
| | - Kevin S. Chen
- Department of NeurologyUniversity of MichiganAnn ArborMichiganUSA
- Department of NeurosurgeryUniversity of MichiganAnn ArborMichiganUSA
| | - Shayna N. Mason
- Department of NeurologyUniversity of MichiganAnn ArborMichiganUSA
| | - Diana M. Rigan
- Department of NeurologyUniversity of MichiganAnn ArborMichiganUSA
| | | | - John M. Hayes
- Department of NeurologyUniversity of MichiganAnn ArborMichiganUSA
| | - Emily D. Glass
- Department of Molecular and Integrative PhysiologyUniversity of MichiganAnn ArborMichiganUSA
- Michigan Neuroscience InstituteUniversity of MichiganAnn ArborMichiganUSA
| | - Evan L. Reynolds
- Department of NeurologyUniversity of MichiganAnn ArborMichiganUSA
| | - Geoffrey G. Murphy
- Department of Molecular and Integrative PhysiologyUniversity of MichiganAnn ArborMichiganUSA
- Michigan Neuroscience InstituteUniversity of MichiganAnn ArborMichiganUSA
| | - Eva L. Feldman
- Department of NeurologyUniversity of MichiganAnn ArborMichiganUSA
| |
Collapse
|
4
|
Fahy N, Palomares Cabeza V, Lolli A, Witte-Bouma J, Merino A, Ridwan Y, Wolvius EB, Hoogduijn MJ, Farrell E, Brama PAJ. Chondrogenically Primed Human Mesenchymal Stem Cells Persist and Undergo Early Stages of Endochondral Ossification in an Immunocompetent Xenogeneic Model. Front Immunol 2021; 12:715267. [PMID: 34659205 PMCID: PMC8515138 DOI: 10.3389/fimmu.2021.715267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 09/10/2021] [Indexed: 11/18/2022] Open
Abstract
Tissue engineering approaches using progenitor cells such as mesenchymal stromal cells (MSCs) represent a promising strategy to regenerate bone. Previous work has demonstrated the potential of chondrogenically primed human MSCs to recapitulate the process of endochondral ossification and form mature bone in vivo, using immunodeficient xenogeneic models. To further the translation of such MSC-based approaches, additional investigation is required to understand the impact of interactions between human MSC constructs and host immune cells upon the success of MSC-mediated bone formation. Although human MSCs are considered hypoimmunogenic, the potential of chondrogenically primed human MSCs to induce immunogenic responses in vivo, as well as the efficacy of MSC-mediated ectopic bone formation in the presence of fully competent immune system, requires further elucidation. Therefore, the aim of this study was to investigate the capacity of chondrogenically primed human MSC constructs to persist and undergo the process of endochondral ossification in an immune competent xenogeneic model. Chondrogenically differentiated human MSC pellets were subcutaneously implanted to wild-type BALB/c mice and retrieved at 2 and 12 weeks post-implantation. The percentages of CD4+ and CD8+ T cells, B cells, and classical/non-classical monocyte subsets were not altered in the peripheral blood of mice that received chondrogenic MSC constructs compared to sham-operated controls at 2 weeks post-surgery. However, MSC-implanted mice had significantly higher levels of serum total IgG compared to sham-operated mice at this timepoint. Flow cytometric analysis of retrieved MSC constructs identified the presence of T cells and macrophages at 2 and 12 weeks post-implantation, with low levels of immune cell infiltration to implanted MSC constructs detected by CD45 and CD3 immunohistochemical staining. Despite the presence of immune cells in the tissue, MSC constructs persisted in vivo and were not degraded/resorbed. Furthermore, constructs became mineralised, with longitudinal micro-computed tomography imaging revealing an increase in mineralised tissue volume from 4 weeks post-implantation until the experimental endpoint at 12 weeks. These findings indicate that chondrogenically differentiated human MSC pellets can persist and undergo early stages of endochondral ossification following subcutaneous implantation in an immunocompetent xenogeneic model. This scaffold-free model may be further extrapolated to provide mechanistic insight to osteoimmunological processes regulating bone regeneration and homeostasis.
Collapse
Affiliation(s)
- Niamh Fahy
- Department of Oral and Maxillofacial Surgery, Erasmus Medical Center, Rotterdam, Netherlands.,Department of Orthopaedics and Sports Medicine, Erasmus Medical Center, Rotterdam, Netherlands
| | - Virginia Palomares Cabeza
- Department of Oral and Maxillofacial Surgery, Erasmus Medical Center, Rotterdam, Netherlands.,Transplantation Institute, Department of Internal Medicine, Erasmus Medical Center, Rotterdam, Netherlands.,School of Veterinary Medicine, University College Dublin, Dublin, Ireland
| | - Andrea Lolli
- Department of Oral and Maxillofacial Surgery, Erasmus Medical Center, Rotterdam, Netherlands
| | - Janneke Witte-Bouma
- Department of Oral and Maxillofacial Surgery, Erasmus Medical Center, Rotterdam, Netherlands
| | - Ana Merino
- Transplantation Institute, Department of Internal Medicine, Erasmus Medical Center, Rotterdam, Netherlands
| | - Yanto Ridwan
- Department of Genetics, Erasmus Medical Center, Rotterdam, Netherlands.,Department of Radiology and Nuclear Medicine, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Eppo B Wolvius
- Department of Oral and Maxillofacial Surgery, Erasmus Medical Center, Rotterdam, Netherlands
| | - Martin J Hoogduijn
- Transplantation Institute, Department of Internal Medicine, Erasmus Medical Center, Rotterdam, Netherlands
| | - Eric Farrell
- Department of Oral and Maxillofacial Surgery, Erasmus Medical Center, Rotterdam, Netherlands
| | - Pieter A J Brama
- School of Veterinary Medicine, University College Dublin, Dublin, Ireland
| |
Collapse
|
5
|
Kang MJ, Kim JE, Park JW, Choi HJ, Bae SJ, Kim KS, Jung YS, Cho JY, Hwang DY, Song HK. Comparison of responsiveness to cancer development and anti-cancer drug in three different C57BL/6N stocks. Lab Anim Res 2019; 35:17. [PMID: 32257905 PMCID: PMC7081605 DOI: 10.1186/s42826-019-0015-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 08/06/2019] [Indexed: 03/21/2023] Open
Abstract
In our efforts to understand the systemic features of tumors, the importance of animal models is increasing due to the recent growth in the development of immunotherapy and targeted therapies. This has resulted in increased attention towards tumor animal models using C57BL/6N, which are mainly used in immunological studies. In this study, the C57BL/6NKorl stock and two other commercial stocks (C57BL/6NA and C57BL/N6B) are evaluated by comparing the occurrence of tumors using the syngeneic model; furthermore, we compare the response to anti-cancer drugs in the syngeneic model by evaluating survival, growth of tumors, proliferation and molecular biology analysis. In the syngeneic model using LLC (Lewis lung carcinoma) cells, the survival of mice and growth of the tumor showed a better response in the C57BL/6NKorl stock, and was dependent on the cell concentration of the dosing tumor, as compared to the other C57BL/6N stocks. However, the Ki-67 staining showed only little difference in cell proliferation within the tumor tissue each mouse stocks. Comparing the sensitivity to anti-cancer drug by examining changes in growth, volume and weight revealed that cisplatin treatment for tumor-bearing C57BL/6NKorl was more dependent on concentration. The Ki-67 staining, however, showed no difference among the C57BL/6N stocks after cisplatin treatment. The expressions of p27 and p53 tumor suppressor proteins, caspase-3 and Bax showed dose-dependent increase after exposure to cisplatin, whereas the expression of Bcl-2 was reduced in a dose-dependent manner. Furthermore, the expressions of MMP-2 and VEGF involved in metastasis, as well as inflammatory genes IL-1β, IL-6 and IL-10, showed dose-dependent decrease in tumor tissue after cisplatin exposure. Differences observed among the C57BL/6N stocks were not significant. Taken together, our studies reveal that C57BL/6NKorl has the potential of being a useful biological resource established in Korea, as it does not differ from the two commercially available C57BL/6N stocks when considering response to tumor generation and sensitivity to anti-cancer drugs using the syngeneic tumor model.
Collapse
Affiliation(s)
- Mi Ju Kang
- 1Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, 50 Cheonghak-ri, Samnangjin-eup Miryang-si, Gyeongsangnam-do 627-706, Miryang, 50463 Korea
| | - Ji Eun Kim
- 1Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, 50 Cheonghak-ri, Samnangjin-eup Miryang-si, Gyeongsangnam-do 627-706, Miryang, 50463 Korea
| | - Ji Won Park
- 1Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, 50 Cheonghak-ri, Samnangjin-eup Miryang-si, Gyeongsangnam-do 627-706, Miryang, 50463 Korea
| | - Hyeon Jun Choi
- 1Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, 50 Cheonghak-ri, Samnangjin-eup Miryang-si, Gyeongsangnam-do 627-706, Miryang, 50463 Korea
| | - Su Ji Bae
- 1Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, 50 Cheonghak-ri, Samnangjin-eup Miryang-si, Gyeongsangnam-do 627-706, Miryang, 50463 Korea
| | - Kil Soo Kim
- 2College of Veterinary Medicine, Kyungpook National University, Daegu, Korea
| | - Young-Suk Jung
- 3College of Pharmacy, Pusan National University, Busan, Korea
| | - Joon-Yong Cho
- 4Exercise Biochemistry Laboratory, Korea National Sport University, Seoul, Korea
| | - Dae Youn Hwang
- 1Department of Biomaterials Science, College of Natural Resources & Life Science/Life and Industry Convergence Research Institute, Pusan National University, 50 Cheonghak-ri, Samnangjin-eup Miryang-si, Gyeongsangnam-do 627-706, Miryang, 50463 Korea
| | - Hyun Keun Song
- Central Research Institute, Kine siences Co., F1, Milovany, Goryeodae-ro 28, Seongbuk-gu, Seoul, Korea
| |
Collapse
|
6
|
Characterization of immune cell subtypes in three commonly used mouse strains reveals gender and strain-specific variations. J Transl Med 2019; 99:93-106. [PMID: 30353130 PMCID: PMC6524955 DOI: 10.1038/s41374-018-0137-1] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 08/22/2018] [Accepted: 09/12/2018] [Indexed: 12/21/2022] Open
Abstract
The lack of consensus on bone marrow (BM) and splenic immune cell profiles in preclinical mouse strains complicates comparative analysis across different studies. Although studies have documented relative distribution of immune cells from peripheral blood in mice, similar studies for BM and spleen from naïve mice are lacking. In an effort to establish strain- and gender-specific benchmarks for distribution of various immune cell subtypes in these organs, we performed immunophenotypic analysis of BM cells and splenocytes from both genders of three commonly used murine strains (C57BL/6NCr, 129/SvHsd, and BALB/cAnNCr). Total neutrophils and splenic macrophages were significantly higher in C57BL/6NCr, whereas total B cells were lower. Within C57BL/6NCr female mice, BM B cells were elevated with respect to the males whereas splenic mDCs and splenic neutrophils were reduced. Within BALB/cAnNCr male mice, BM CD4+ Tregs were elevated with respect to the other strains. Furthermore, in male BALB/cAnNCr mice, NK cells were elevated with respect to the other strains in both BM and spleen. Splenic CD4+ Tregs and splenic CD8+ T cells were reduced in male BALB/c mice in comparison to female mice. Bone marrow CD4+ T cells and mDCs were significantly increased in 129/SvHsd whereas splenic CD8+ T cells were reduced. In general, males exhibited higher immature myeloid cells, macrophages, and NK cells. To our knowledge, this study provides a first attempt to systematically establish organ-specific benchmarks on immune cells in studies involving these mouse strains.
Collapse
|
7
|
Pu F, Guo Y, Li M, Zhu H, Wang S, Shen X, He M, Huang C, He F. Yogurt supplemented with probiotics can protect the healthy elderly from respiratory infections: A randomized controlled open-label trial. Clin Interv Aging 2017; 12:1223-1231. [PMID: 28848330 PMCID: PMC5557113 DOI: 10.2147/cia.s141518] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
PURPOSE To evaluate whether yogurt supplemented with a probiotic strain could protect middle-aged and elderly people from acute upper respiratory tract infections (URTI) using a randomized, blank-controlled, parallel-group design. PATIENTS AND METHODS Two hundred and five volunteers aged ≥45 years were randomly divided into two groups. The subjects in the intervention group were orally administered 300 mL/d of yogurt supplemented with a probiotic strain, Lactobacillus paracasei N1115 (N1115), 3.6×107 CFU/mL for 12 weeks, while those in the control group retained their normal diet without any probiotic supplementation. The primary outcome was the incidence of URTI, and changes in serum protein, immunoglobulins, and the profiles of the T-lymphocyte subsets (total T-cells [CD3+], T-helper cells [CD4+], and T-cytotoxic-suppressor cells [CD8+]) during the intervention were the secondary outcomes. RESULTS Compared to the control group, the number of persons diagnosed with an acute URTI and the number of URTI events significantly decreased in the intervention group (P=0.038, P=0.030, respectively). The risk of URTI in the intervention group was evaluated as 55% of that in the control group (relative risk =0.55, 95% CI: 0.307-0.969). The change in the percentage of CD3+ cells in the intervention group was significantly higher than in the control group (P=0.038). However, no significant differences were observed in the total protein, albumin, globulin, and prealbumin levels in both groups (P>0.05). CONCLUSION The study suggested that yogurt with selected probiotic strains such as N1115 may reduce the risk of acute upper tract infections in the elderly. The enhancement of the T-cell-mediated natural immune defense might be one of the important underlying mechanisms for probiotics to express their anti-infective effects.
Collapse
Affiliation(s)
- Fangfang Pu
- Department of Nutrition, Food Safety and Toxicology, West China School of Public Health, Sichuan University, Chengdu, Sichuan, People’s Republic of China
| | - Yue Guo
- Department of Nutrition, Food Safety and Toxicology, West China School of Public Health, Sichuan University, Chengdu, Sichuan, People’s Republic of China
- Microbiology laboratory, Chengdu Center for Disease Control & Prevention, Chengdu, Sichuan, People’s Republic of China
| | - Ming Li
- Department of Nutrition, Food Safety and Toxicology, West China School of Public Health, Sichuan University, Chengdu, Sichuan, People’s Republic of China
| | - Hong Zhu
- R&D center, Shijiazhuang Junlebao Dairy Co. Ltd., Shijiazhuang, Hebei, People’s Republic of China
| | - Shijie Wang
- R&D center, Shijiazhuang Junlebao Dairy Co. Ltd., Shijiazhuang, Hebei, People’s Republic of China
| | - Xi Shen
- Department of Nutrition, Food Safety and Toxicology, West China School of Public Health, Sichuan University, Chengdu, Sichuan, People’s Republic of China
| | - Miao He
- Department of Nutrition, Food Safety and Toxicology, West China School of Public Health, Sichuan University, Chengdu, Sichuan, People’s Republic of China
| | - Chengyu Huang
- Department of Nutrition, Food Safety and Toxicology, West China School of Public Health, Sichuan University, Chengdu, Sichuan, People’s Republic of China
| | - Fang He
- Department of Nutrition, Food Safety and Toxicology, West China School of Public Health, Sichuan University, Chengdu, Sichuan, People’s Republic of China
| |
Collapse
|
8
|
Xie K, Neff F, Markert A, Rozman J, Aguilar-Pimentel JA, Amarie OV, Becker L, Brommage R, Garrett L, Henzel KS, Hölter SM, Janik D, Lehmann I, Moreth K, Pearson BL, Racz I, Rathkolb B, Ryan DP, Schröder S, Treise I, Bekeredjian R, Busch DH, Graw J, Ehninger G, Klingenspor M, Klopstock T, Ollert M, Sandholzer M, Schmidt-Weber C, Weiergräber M, Wolf E, Wurst W, Zimmer A, Gailus-Durner V, Fuchs H, Hrabě de Angelis M, Ehninger D. Every-other-day feeding extends lifespan but fails to delay many symptoms of aging in mice. Nat Commun 2017; 8:155. [PMID: 28761067 PMCID: PMC5537224 DOI: 10.1038/s41467-017-00178-3] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 06/08/2017] [Indexed: 01/28/2023] Open
Abstract
Dietary restriction regimes extend lifespan in various animal models. Here we show that longevity in male C57BL/6J mice subjected to every-other-day feeding is associated with a delayed onset of neoplastic disease that naturally limits lifespan in these animals. We compare more than 200 phenotypes in over 20 tissues in aged animals fed with a lifelong every-other-day feeding or ad libitum access to food diet to determine whether molecular, cellular, physiological and histopathological aging features develop more slowly in every-other-day feeding mice than in controls. We also analyze the effects of every-other-day feeding on young mice on shorter-term every-other-day feeding or ad libitum to account for possible aging-independent restriction effects. Our large-scale analysis reveals overall only limited evidence for a retardation of the aging rate in every-other-day feeding mice. The data indicate that every-other-day feeding-induced longevity is sufficiently explained by delays in life-limiting neoplastic disorders and is not associated with a more general slowing of the aging process in mice. Dietary restriction can extend the life of various model organisms. Here, Xie et al. show that intermittent periods of fasting achieved through every-other-day feeding protect mice against neoplastic disease but do not broadly delay organismal aging in animals.
Collapse
Affiliation(s)
- Kan Xie
- DZNE, German Center for Neurodegenerative Diseases, Ludwig-Erhard-Allee 2, 53175, Bonn, Germany
| | - Frauke Neff
- Institute of Pathology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Astrid Markert
- DZNE, German Center for Neurodegenerative Diseases, Ludwig-Erhard-Allee 2, 53175, Bonn, Germany
| | - Jan Rozman
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Member of German Center for Diabetes Research (DZD), Ingolstädter Landstraße 1, 85764, München-Neuherberg, Germany
| | - Juan Antonio Aguilar-Pimentel
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Division of Environmental Dermatology and Allergy, Technische Universität München/Helmholtz Zentrum München, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Oana Veronica Amarie
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Lore Becker
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Robert Brommage
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Lillian Garrett
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Kristin S Henzel
- DZNE, German Center for Neurodegenerative Diseases, Ludwig-Erhard-Allee 2, 53175, Bonn, Germany
| | - Sabine M Hölter
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Dirk Janik
- Institute of Pathology, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Isabelle Lehmann
- DZNE, German Center for Neurodegenerative Diseases, Ludwig-Erhard-Allee 2, 53175, Bonn, Germany
| | - Kristin Moreth
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Brandon L Pearson
- DZNE, German Center for Neurodegenerative Diseases, Ludwig-Erhard-Allee 2, 53175, Bonn, Germany
| | - Ildiko Racz
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Institute of Molecular Psychiatry, Medical Faculty, University of Bonn, Sigmund-Freud-Straße 25, 53105, Bonn, Germany
| | - Birgit Rathkolb
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Member of German Center for Diabetes Research (DZD), Ingolstädter Landstraße 1, 85764, München-Neuherberg, Germany.,Chair of Molecular Animal Breeding and Biotechnology, Gene Center, Ludwig-Maximilians-Universität München, Feodor Lynen-Straße 25, 81377, Munich, Germany
| | - Devon P Ryan
- DZNE, German Center for Neurodegenerative Diseases, Ludwig-Erhard-Allee 2, 53175, Bonn, Germany
| | - Susanne Schröder
- DZNE, German Center for Neurodegenerative Diseases, Ludwig-Erhard-Allee 2, 53175, Bonn, Germany
| | - Irina Treise
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Institute for Medical Microbiology, Immunology, and Hygiene, Trogerstraße 30, Technische Universität München, 81675, Munich, Germany
| | - Raffi Bekeredjian
- Department of Medicine III, Division of Cardiology, University of Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany
| | - Dirk H Busch
- Institute for Medical Microbiology, Immunology, and Hygiene, Trogerstraße 30, Technische Universität München, 81675, Munich, Germany
| | - Jochen Graw
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Gerhard Ehninger
- Department of Internal Medicine I, University Hospital Carl Gustav Carus, Technical University Dresden, Fetscherstraße 74, 01307, Dresden, Germany
| | - Martin Klingenspor
- Molecular Nutritional Medicine, Else Kröner-Fresenius Center, Technische Universität München, Gregor-Mendel-Straße 2, 85350, Freising-Weihenstephan, Germany
| | - Thomas Klopstock
- Friedrich-Baur-Institut, Department of Neurology, Ludwig-Maximilians-Universität München, Ziemssenstraße 1a, 80336, Munich, Germany.,German Center for Vertigo and Balance Disorders, University Hospital Munich, Campus Grosshadern, Marchioninistraße 15, 81377, Munich, Germany.,DZNE, German Center for Neurodegenerative Diseases, Schillerstraße 44, 80336, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), 80336, Munich, Germany
| | - Markus Ollert
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg.,Department of Dermatology and Allergy Center, Odense Research Center for Anaphylaxis, University of Southern Denmark, Odense, Denmark
| | - Michael Sandholzer
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Comprehensive Pneumology Center, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Carsten Schmidt-Weber
- Center of Allergy & Environment (ZAUM), Technische Universität München and Helmholtz Zentrum München, Biedersteiner Str. 29, 80802, Munich, Germany.,Member of the German Center for Lung Research (DZL), Aulweg 130, 35392, Gießen, Germany
| | - Marco Weiergräber
- Research Group Experimental Neuropsychopharmacology, Federal Institute for Drugs and Medical Devices, Kurt-Georg-Kiesinger-Allee 3, 53175, Bonn, Germany
| | - Eckhard Wolf
- Chair of Molecular Animal Breeding and Biotechnology, Gene Center, Ludwig-Maximilians-Universität München, Feodor Lynen-Straße 25, 81377, Munich, Germany
| | - Wolfgang Wurst
- Institute of Developmental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,DZNE, German Center for Neurodegenerative Diseases, Schillerstraße 44, 80336, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), 80336, Munich, Germany.,Chair of Developmental Genetics, Technische Universität München, c/o Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Andreas Zimmer
- Institute of Molecular Psychiatry, Medical Faculty, University of Bonn, Sigmund-Freud-Straße 25, 53105, Bonn, Germany
| | - Valerie Gailus-Durner
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Helmut Fuchs
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany
| | - Martin Hrabě de Angelis
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.,Member of German Center for Diabetes Research (DZD), Ingolstädter Landstraße 1, 85764, München-Neuherberg, Germany.,Chair of Experimental Genetics, Center of Life and Food Sciences Weihenstephan, Technische Universität München, 85350, Freising-Weihenstephan, Germany
| | - Dan Ehninger
- DZNE, German Center for Neurodegenerative Diseases, Ludwig-Erhard-Allee 2, 53175, Bonn, Germany.
| |
Collapse
|
9
|
Comparative study of the immunological characteristics of three different C57BL/6N mouse substrains. Lab Anim Res 2017; 33:124-131. [PMID: 28747978 PMCID: PMC5527138 DOI: 10.5625/lar.2017.33.2.124] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 06/09/2017] [Accepted: 06/09/2017] [Indexed: 11/21/2022] Open
Abstract
Inbred mice, a systematically developed homogeneous animal, have been developed to maintain experimental reproducibility and to minimize experimental variables in animal-based studies. In particular, C57BL/6 mice are frequently used in experiments into immunology and antitumor activity experiments. This study was compared the immunological characteristics of C57BL/6NKorl, a Korean developed experimental animal resource, with those of two other C57BL/6N substrains. Mouse body, thymus, and spleen weights in C57BL/6NKorl were not significantly different from those of the other two C57BL/6N substrains. Among the three substrains, there was no difference in the distribution of T and B cells, which are lymphocytes involved in adaptive immunity, and no difference in NK cells related to innate immunity. Results for macrophages and granulocytes, which have roles in innate immunity, were similar in all three substrains. In order to investigate the expressions of major histocompatibility complex (MHC) molecules and allogenic antigens, splenocytes were separated from obtained spleen and analyzed by using flow cytometry. MHC class I and II molecules, which are important during self/non-self-discrimination, were similar in the three substrains. In addition, expression of alloantigen involved in allografts showed similar results in the three substrain. Thus, the results of this study provide strong evidence that C57BL/6NKorl is immunologically similar to two other C57BL/6N substrains.
Collapse
|
10
|
Use of C57BL/6N mice on the variety of immunological researches. Lab Anim Res 2017; 33:119-123. [PMID: 28747977 PMCID: PMC5527137 DOI: 10.5625/lar.2017.33.2.119] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 06/09/2017] [Accepted: 06/09/2017] [Indexed: 12/11/2022] Open
Abstract
Inbred mice are an essential animal strain for research as they can improve the reproducibility and reliability of study results. The establishment of new inbred lines is continuing, and new inbred lines are being used in many research fields. C57BL/6 is a mouse laboratory animal that has been developed and used as an inbred strain since early stage of mouse strain development, and, in the 1950s, C57BL/6 was separated into substrains by the Jackson Laboratory (C57BL/6J) and the National Institutes of Health (C57BL/6N). C57BL/6 mice have been used in immunology and antitumor activity studies since the early strain development stage. After the mouse genome was fully described, C57BL/6 mice use in many areas of research has expanded. In particular, immunological characteristics such as those related to cell-mediated immunity and NK cell activity are relatively higher in C57BL/6 mice than in other mice. The C57BL/6NKorl is a stock of C57BL/6N established as part of a localization of experimental animal strategy of the Korean Food and Drug Administration. Based on analysis of single nucleotide polymorphisms (SNPs), C57BL/6NKorl is considered a genetically distinct inbred stock from other C57BL/6N. Various research efforts have been made to describe the characteristics and increase knowledge of the characteristics of C57BL/6Nkorl. The results obtained through these efforts are expected to increase the utilization of C57BL/6Nkorl as a domestic laboratory animal resource and to enhance the reliability of mouse based studies.
Collapse
|
11
|
Comparison of humoral and cell-mediated immunity in three different C57BL/6N mouse substrains. Lab Anim Res 2017; 33:132-139. [PMID: 28747979 PMCID: PMC5527139 DOI: 10.5625/lar.2017.33.2.132] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 06/09/2017] [Accepted: 06/09/2017] [Indexed: 11/28/2022] Open
Abstract
Adaptive immunity is a type of immune response mediated by T and B cells, and is important response for immune response amplification and memory. In this study, the adaptive immunologic properties of C57BL/6NKorl substrain were compared with those of two other C57BL/6N substrains. There were no significant differences between the C57BL/6NKorl and the two other C57BL/6N substrains in the histological structures of the thymus and spleen, which are immunologic organs containing T cell and B cells. In addition, flow cytometric analysis did not reveal any significant differences in the distribution of T and B cell populations of the three substrains. To evaluate cell-mediated immunity of T cells in the three different substrains, we treated isolated T cells from spleen with Con A. The T cells of C57BL/6NKorl showed Con A-dependent proliferation of T cells at lower cell number than those in T cells from the other two C57BL/6N substrains. B cell-mediated humoral immune responses were not significant different among the three substrains. Thus, the results of this study provide evidence that C57BL/6NKorl mice are similar to those two other C57BL/6N substrains in humoral immunity, but C57BL/6NKorl has stronger response in cell mediated immunity.
Collapse
|
12
|
Simons RL, Lei MK, Beach SRH, Barr AB, Cutrona CE, Gibbons FX, Philibert RA. An index of the ratio of inflammatory to antiviral cell types mediates the effects of social adversity and age on chronic illness. Soc Sci Med 2017; 185:158-165. [PMID: 28356188 DOI: 10.1016/j.socscimed.2017.03.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 02/16/2017] [Accepted: 03/03/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND It is assumed that both social stress and chronological age increase the risk of chronic illness, in part, through their effect on systemic inflammation. Unfortunately, observational studies usually employ single-marker measures of inflammation (e.g., Interleukin-6, C-reactive protein) that preclude strong tests for mediational effects. OBJECTIVE The present study investigated the extent to which the effects of socioeconomic disadvantage and age on onset of chronic illness is mediated by dominance of the innate (inflammatory) over the acquired (antiviral) components of the immune system. METHODS We assessed inflammation using the ratio of inflammatory to antiviral cell types (ITACT Ratio). This approach provided a stronger test of evolutionary arguments regarding the effect of social stress on chronic inflammation than is the case with cytokine measures, and afforded an opportunity to replicate findings obtained utilizing mRNA. We used structural equation modeling and longitudinal data from a sample of 100 middle-age African American women to perform our analyses. RESULTS Dominance of inflammatory over antiviral cell activity was associated with each of the eight illnesses included in our chronic illness measure. Both socioeconomic disadvantage and age were also associated with inflammatory dominance. Pursuant to the central focus of the study, the effects of socioeconomic adversity and age on increased illness were mediated by our measure of inflammatory dominance. The indirect effect of these variables through inflammatory cell profile was significant, with neither socioeconomic disadvantage nor age showing a significant association with illness once the impact of inflammatory cell profile was taken into account. CONCLUSIONS First, the analysis provides preliminary validation of a new measure of inflammation that is calculated based on the ratio of inflammatory to antiviral white blood cells. Second, our results support the hypothesis that socioeconomic disadvantage and chronological age increase risk for chronic illness in part through their effect on inflammatory processes.
Collapse
Affiliation(s)
- Ronald L Simons
- Department of Sociology, University of Georgia, 324 Baldwin Hall, Athens, GA 30606, United States.
| | - Man-Kit Lei
- Center for Family Research, University of Georgia, 1095 College Station Road, Athens, GA 30605, United States
| | - Steven R H Beach
- Department of Psychology, University of Georgia, 157 IBR Psychology Building, Athens, GA 30602, United States
| | - Ashley B Barr
- Department of Sociology, SUNY Buffalo, 430 Park Hall, Buffalo, NY 14260, United States
| | - Carolyn E Cutrona
- Department of Psychology, Iowa State University, W112 Lagomarcino Hall, Ames, IA 50011, United States
| | - Frederick X Gibbons
- Department of Psychological Sciences, University of Connecticut, 406 Babbidge Road, Storrs, CT 06269, United States
| | - Robert A Philibert
- Department of Psychiatry, University of Iowa, 2-126B Medical Education Building, Iowa City, IA 52242, United States
| |
Collapse
|
13
|
Tye GJ, Ioannou K, Amofah E, Quartey-Papafio R, Westrop SJ, Krishnamurthy P, Noble A, Harrison PM, Gaensler KML, Barber LD, Farzaneh F. The combined molecular adjuvant CASAC enhances the CD8+ T cell response to a tumor-associated self-antigen in aged, immunosenescent mice. IMMUNITY & AGEING 2015; 12:6. [PMID: 26157468 PMCID: PMC4495856 DOI: 10.1186/s12979-015-0033-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 06/08/2015] [Indexed: 02/03/2023]
Abstract
Background Ineffective induction of T cell mediated immunity in older individuals remains a persistent challenge for vaccine development. Thus, there is a need for more efficient and sophisticated adjuvants that will complement novel vaccine strategies for the elderly. To this end, we have investigated a previously optimized, combined molecular adjuvant, CASAC (Combined Adjuvant for Synergistic Activation of Cellular immunity), incorporating two complementary Toll-like receptor agonists, CpG and polyI:C, a class-II epitope, and interferon (IFN)-γ in aged mice. Findings In aged mice with typical features of immunosenescence, antigen specific CD8+ T cell responses were stimulated after serial vaccinations with CASAC or Complete/Incomplete Freund’s Adjuvant (CFA/IFA) and a class I epitope, deriving either from ovalbumin (SIINFEKL, SIL) or the melanoma-associated self-antigen, tyrosinase-related protein-2 (SVYDFFVWL, SVL). Pentamer analysis revealed that aged, CASAC/SIL-vaccinated animals had substantially higher frequencies of H-2Kb/SIL-specific CD8+ T cells compared to the CFA/IFA-vaccinated groups. Similarly, higher frequencies of H-2Kb/SVL-pentamer+ and IFN-γ+ CD8+ T cells were detected in the aged, CASAC + SVL-vaccinated mice than in their CFA/IFA-vaccinated counterparts. In both antigen settings, CASAC promoted significantly better functional CD8+ T cell activity. Conclusion These studies demonstrate that functional CD8+ T cells, specific for both foreign and tumour-associated self-antigens, can be effectively induced in aged immunosenescent mice using the novel multi-factorial adjuvant CASAC.
Collapse
Affiliation(s)
- Gee Jun Tye
- Department of Haematological Medicine, King's College London, Rayne Institute, London, UK.,Institute for Research in Molecular Medicine, Universiti Sains Malaysia, George town, Malaysia
| | - Kyriaki Ioannou
- Department of Haematological Medicine, King's College London, Rayne Institute, London, UK
| | - Eunice Amofah
- Department of Haematological Medicine, King's College London, Rayne Institute, London, UK
| | - Ruby Quartey-Papafio
- Department of Haematological Medicine, King's College London, Rayne Institute, London, UK
| | - Samantha J Westrop
- Department of Haematological Medicine, King's College London, Rayne Institute, London, UK
| | - Pramila Krishnamurthy
- Department of Haematological Medicine, King's College London, Rayne Institute, London, UK
| | - Alistair Noble
- Medical Research Council and Asthma UK Centre in Allergic Mechanisms of Asthma, King's College London, Guy's Hospital, London, UK
| | - Phillip M Harrison
- Division of Transplant and Mucosal Cell Biology, King's College London, London, UK
| | - Karin M L Gaensler
- Department of Medicine, University of California, San Francisco School of Medicine, San Francisco, USA
| | - Linda D Barber
- Department of Haematological Medicine, King's College London, Rayne Institute, London, UK
| | - Farzin Farzaneh
- Department of Haematological Medicine, King's College London, Rayne Institute, London, UK
| |
Collapse
|
14
|
Yamato M, Ishimatsu A, Yamanaka Y, Mine T, Yamada K. Tempol intake improves inflammatory status in aged mice. J Clin Biochem Nutr 2014; 55:11-4. [PMID: 25120275 PMCID: PMC4078072 DOI: 10.3164/jcbn.14-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Accepted: 01/20/2014] [Indexed: 12/20/2022] Open
Abstract
Oxidative stress is associated with both healthy aging and age-related disease states. In connection with oxidative stress, immunity is also a major component as a result of the chronic, low-grade inflammation associated with the development of tissue aging. Here we show that long-term treatment with the antioxidant tempol extends life-span in mice. Tempol-treated mice exhibited a reduction in mortality at 20 months. Tempol drinking did not have any effect on body weight, amount of visceral adipose tissue, or plasma biochemical parameters in aged mice. Body temperature of aged control mice (which drank only water) was significantly lower than young mice, but this reduction of body temperature was partially restored in aged mice which drank tempol. Plasma thiobarbituric acid-reactive substances and C-reactive protein were significantly increased in the control aged mice compared with young mice, but levels of both were normalized by tempol drinking. One of the endogenous antioxidants, ascorbic acid, was significantly increased in the plasma of mice which consumed tempol. The proportion of CD4 lymphocytes in the blood of aged tempol-treated mice was partially increased in comparison to aged control mice. These results suggest that the reduction of mortality by tempol is due to amelioration of chronic inflammation and improved function of the immune system through antioxidant effects.
Collapse
Affiliation(s)
- Mayumi Yamato
- Innovation Center for Medical Redox Navigation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Ayumi Ishimatsu
- Department of Bio-functional Science, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Yuuki Yamanaka
- Department of Bio-functional Science, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Takara Mine
- Department of Bio-functional Science, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Kenichi Yamada
- Department of Bio-functional Science, Faculty of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan ; JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| |
Collapse
|
15
|
Sellers RS, Clifford CB, Treuting PM, Brayton C. Immunological variation between inbred laboratory mouse strains: points to consider in phenotyping genetically immunomodified mice. Vet Pathol 2011; 49:32-43. [PMID: 22135019 DOI: 10.1177/0300985811429314] [Citation(s) in RCA: 198] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Inbred laboratory mouse strains are highly divergent in their immune response patterns as a result of genetic mutations and polymorphisms. The generation of genetically engineered mice (GEM) has, in the past, used embryonic stem (ES) cells for gene targeting from various 129 substrains followed by backcrossing into more fecund mouse strains. Although common inbred mice are considered "immune competent," many have variations in their immune system-some of which have been described-that may affect the phenotype. Recognition of these immune variations among commonly used inbred mouse strains is essential for the accurate interpretation of expected phenotypes or those that may arise unexpectedly. In GEM developed to study specific components of the immune system, accurate evaluation of immune responses must take into consideration not only the gene of interest but also how the background strain and microbial milieu contribute to the manifestation of findings in these mice. This article discusses points to consider regarding immunological differences between the common inbred laboratory mouse strains, particularly in their use as background strains in GEM.
Collapse
Affiliation(s)
- R S Sellers
- Albert Einstein College of Medicine, 1301 Morris Park Ave, Room 158, Bronx, NY 10461, USA.
| | | | | | | |
Collapse
|
16
|
Einecke G, Mengel M, Hidalgo L, Allanach K, Famulski KS, Halloran PF. The early course of kidney allograft rejection: defining the time when rejection begins. Am J Transplant 2009; 9:483-93. [PMID: 19260832 DOI: 10.1111/j.1600-6143.2008.02546.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We studied the early events in mouse kidney allografts and isografts to define when allorecognition begins and when alloimmune tissue injury begins. Allografts but not isografts showed T-cell infiltration in perivascular areas from day 1, but tubulitis and arteritis did not develop until day 7. Flow cytometry confirmed the early allospecific CD3(+)CD8(+) T-cell infiltrate. At day 1, both allografts and isografts showed extensive transcriptome changes, reflecting the response to surgery, but only allografts showed expression of interferon-gamma (IFN-gamma)-inducible transcripts and T-cell-associated transcripts. Although the number of CD68(+) myeloid cell numbers did not increase in day 1 isografts or allografts, mRNA expression for myeloid markers was increased in isografts and allografts, suggesting activation of resident cells of the macrophage-dendritic cell series (MMDCs) in response to injury, followed by increased CD68(+) cell numbers from day 2. By day 3, an interstitial T-cell and MMDC infiltrate was established in allografts, corresponding with the emergence of allospecific tissue injury, as reflected by decreased parenchymal transcripts. Thus, in renal allografts, allorecognition by T cells occurs in perivascular sites by day 1, but alloimmune parenchymal damage begins at day 3, coinciding with the emergence of the interstitial T-cell-MMDC infiltrate.
Collapse
Affiliation(s)
- G Einecke
- Department of Medicine, Division of Nephrology and Transplantation Immunology, University of Alberta, Edmonton, Alberta, Canada
| | | | | | | | | | | |
Collapse
|
17
|
Pinchuk LM, Filipov NM. Differential effects of age on circulating and splenic leukocyte populations in C57BL/6 and BALB/c male mice. IMMUNITY & AGEING 2008; 5:1. [PMID: 18267021 PMCID: PMC2268915 DOI: 10.1186/1742-4933-5-1] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2007] [Accepted: 02/11/2008] [Indexed: 02/05/2023]
Abstract
BACKGROUND Despite several reports on age-related phenotypic changes of the immune system's cells, studies that use a multipoint age comparison between the specific and innate immune cell populations of prototypical Th1- and Th2-type polarized mouse strains are still lacking. RESULTS Using a multipoint age comparison approach, cells from the two major immune system compartments, peripheral blood and spleen, and flow cytometry analysis, we found several principal differences in T cell and professional antigen presenting cell (APC) populations originating from a prototypical T helper (Th) 1 mouse strain, C57BL/6, and a prototypical Th2 strain, BALB/c. For example, regardless of age, there were strain differences in both peripheral blood mononuclear cells (PBMC) and spleens in the proportion of CD4+ (higher in the BALB/c strain), CD8+ T cells and CD11b+/CD11c+ APC (greater in C57BL/6 mice). Other differences were present only in PBMC (MHC class II + and CD19+ were greater in C57BL/6 mice) or differences were evident in the spleens but not in circulation (CD3+ T cells were greater in C57BL/6 mice). There were populations of cells that increased with age in PBMC and spleens of both strains (MHC class II+), decreased in the periphery and spleens of both strains (CD11b+) or did not change in the PBMC and spleens of both strains (CD8+). We also found strain and age differences in the distribution of naïve and memory/activated splenic T cells, e.g., BALB/c mice had more memory/activated and less naive CD8+ and CD4+ T cells and the C57BL/6 mice. CONCLUSION Our data provide important information on the principal differences, within the context of age, in T cell and professional APC populations between the prototypical Th1 mouse strain C57BL/6 and the prototypical Th2 strain BALB/c. Although the age-related changes that occur may be rather subtle, they may be very relevant in conditions of disease and stress. Importantly, our data indicate that age and strain should be considered in concert in the selection of appropriate mouse models for immunological research.
Collapse
Affiliation(s)
- Lesya M Pinchuk
- Department of Basic Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, MS, USA.
| | | |
Collapse
|
18
|
Bourgeois C, Kassiotis G, Stockinger B. A major role for memory CD4 T cells in the control of lymphopenia-induced proliferation of naive CD4 T cells. THE JOURNAL OF IMMUNOLOGY 2005; 174:5316-23. [PMID: 15843528 DOI: 10.4049/jimmunol.174.9.5316] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
In a state of lymphopenia, naive and memory CD4 T cells compete with each other for expansion at the expense of naive T cells. This competition prevents the proliferation as well as the phenotypic and functional conversion of naive T cells to "memory-like" T cells and may consequently prevent immune pathology frequently associated with lymphopenia-induced proliferation of naive cells. However, in T cell replete mice, memory T cells do not compete with naive T cells, indicating independent homeostatic control of naive and memory CD4 T cells in conditions that do not involve profound lymphopenia. Moreover, within the memory compartment, subsequent generation of new memory T cells precludes the survival of memory-like T cells. Thus, memory T cells have a major role in the control of lymphopenia-induced proliferation of naive cells because they inhibit both the generation of memory-like T cells and their persistence within the memory compartment.
Collapse
Affiliation(s)
- Christine Bourgeois
- Division of Molecular Immunology, National Institute for Medical Research, London, United Kingdom
| | | | | |
Collapse
|
19
|
Gravekamp C, Sypniewska R, Gauntt S, Tarango M, Price P, Reddick R. Behavior of metastatic and nonmetastatic breast tumors in old mice. Exp Biol Med (Maywood) 2004; 229:665-75. [PMID: 15229361 DOI: 10.1177/153537020422900711] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Breast cancer incidence and mortality increase with age. A better understanding of the biological behavior of metastatic and nonmetastatic breast tumors in older subjects may help to develop improved breast cancer therapies. In this study, we used syngeneic metastatic (4TO7cg) and nonmetastatic (64pT) mouse breast tumor models at three age levels to evaluate various characteristics that are considered to be important for effective anti-breast cancer immunotherapy. These included tumor size and growth, metastases, vascularization, gene expression levels of the tumor-associated antigen (TAA) Mage-b (homologous to human MAGE-B) in primary breast tumors and metastases, and the presence of CD4(+) and CD8(+) T cells in the inguinal lymph nodes at the site of the tumor. The primary breast tumors and metastases were generated by injection of mouse mammary tumor cell lines 4TO7cg or 64pT into a mammary fat pad of normal 3-, 9-, or 21/24-month old BALB/c mice. In the nonmetastatic breast tumor model, significantly smaller tumors were observed in old compared with young mice. This was associated with a significant increase in the percentage of CD8(+) T cells in inguinal lymph nodes and significantly higher Mage-b expression levels in the primary tumors at old age. In the metastatic (4TO7cg) breast tumor model, a less pronounced, not statistically significant, smaller tumor size was found in the old mice, without a difference in the percentage of CD8(+) T cells or Mage-b expression levels. However, in this mouse model almost all metastases showed high levels of Mage-b expression (2- to 3-fold higher than the primary tumors in the same animals) regardless of age. These results indicate that the metastatic and nonmetastatic breast tumor models could be useful model systems to analyze how breast cancer vaccines for humans can be tailored to old age.
Collapse
Affiliation(s)
- Claudia Gravekamp
- University of Texas Health Science Center at San Antonio, Department of Cellular and Structural Biology, 14960 Omicron Drive, San Antonio, TX 78245, USA.
| | | | | | | | | | | |
Collapse
|
20
|
Abstract
Studies to uncover genes regulating stem cells usually adopt one of two distinct lines of investigation: forward genetics and reverse genetics approaches. The forward genetics approach proceeds from measurable phenotypic differences to genetic polymorphism and, as the name implies, the path of investigation is reversed using reverse genetics. The number of newly discovered loci responsible for stem cell-specific phenotypes and functioning is increasing at a rapid rate owing to the success of both approaches. These loci regulate stem cells by intrinsic (cell autonomous) and/or extrinsic mechanisms and dictate stem-cell fate decisions. During the aging process, stem cells undergo both quantitative and qualitative changes, which are hypothesized to affect both the rate of aging and the longevity of an organism.
Collapse
Affiliation(s)
- Ying Liang
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, Kentucky 40536-0093, USA
| | | |
Collapse
|