Article
Cardiac & Cardiovascular Systems
Anahita Mojiri, Brandon K. Walther, Chongming Jiang, Gianfranco Matrone, Rhonda Holgate, Qiu Xu, Elisa Morales, Guangyu Wang, Jianhua Gu, Rongfu Wang, John P. Cooke
Summary: The study on a unique HGPS cell model demonstrated the impact of telomere repair on vascular cell aging, suggesting telomerase mRNA as a potential effective therapeutic approach for HGPS. Research on endothelial cells differentiated from patients with HGPS showed that hTERT treatment improved cellular function, restored endothelial function, and reduced the release of inflammatory markers.
EUROPEAN HEART JOURNAL
(2021)
Review
Genetics & Heredity
Noelle J. Batista, Sanket G. Desai, Alexis M. Perez, Alexa Finkelstein, Rachel Radigan, Manrose Singh, Aaron Landman, Brian Drittel, Daniella Abramov, Mina Ahsan, Samantha Cornwell, Dong Zhang
Summary: Hutchinson-Gilford progeria syndrome (HGPS) is a rare, autosomal-dominant, and fatal premature aging syndrome caused by a point mutation in the LMNA gene. The resulting mutant protein, progerin, behaves in a dominant-negative fashion, leading to cellular and molecular changes similar to normal aging cells. However, HGPS manifests in an accelerated manner and primarily affects connective tissues. Epigenetic changes in HGPS have been studied and may play a crucial role in the disease's pathogenesis. Recent treatments for HGPS have shown important effects at a cellular level, improving symptoms and increasing lifespan.
Article
Cardiac & Cardiovascular Systems
Leslie B. Gordon, Wendy Norris, Sarah Hamren, Robert Goodson, Jessica LeClair, Joseph Massaro, Asya Lyass, Ralph B. D'Agostino, Kelsey Tuminelli, Mark W. Kieran, Monica E. Kleinman
Summary: This study developed a plasma progerin assay to evaluate the quantity of progerin in HGPS patients and its response to treatment. The results showed that the plasma progerin levels were significantly elevated in HGPS patients and decreased after treatment, which was associated with patient survival.
Article
Biochemistry & Molecular Biology
Madaiah Puttaraju, Michaela Jackson, Stephanie Klein, Asaf Shilo, C. Frank Bennett, Leslie Gordon, Frank Rigo, Tom Misteli
Summary: Research has identified an optimized antisense oligonucleotide that can significantly extend lifespan in a mouse model of HGPS, primarily through non-RNase H-mediated mechanisms. In vivo use of optimized ASOs can markedly reduce progerin mRNA levels, but the extent of protein reduction varies between tissues.
Article
Biochemistry & Molecular Biology
Michael R. Erdos, Wayne A. Cabral, Urraca L. Tavarez, Kan Cao, Jelena Gvozdenovic-Jeremic, Narisu Narisu, Patricia M. Zerfas, Stacy Crumley, Yoseph Boku, Gunnar Hanson, Dan V. Mourich, Ryszard Kole, Michael A. Eckhaus, Leslie B. Gordon, Francis S. Collins
Summary: Using an antisense peptide-conjugated phosphorodiamidate morpholino oligomers (PPMOs) to block pathogenic splicing of mutant transcripts has shown promising results in reducing progerin levels and extending lifespan in a mouse model of Hutchinson-Gilford progeria syndrome.
Review
Biochemistry & Molecular Biology
Jon Macicior, Beatriz Marcos-Ramiro, Silvia Ortega-Gutierrez
Summary: Progeria is a rare genetic disorder caused by a point mutation in the lamin A gene, resulting in abnormal accumulation of progerin. Patients typically die prematurely at the average age of 14.5 due to significant alterations in the cardiovascular system, bones, skin, and overall growth.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Cardiac & Cardiovascular Systems
Amanda Sanchez-Lopez, Carla Espinos-Estevez, Cristina Gonzalez-Gomez, Pilar Gonzalo, Maria J. Andres-Manzano, Victor Fanjul, Raquel Riquelme-Borja, Magda R. Hamczyk, Alvaro Macias, Lara Del Campo, Emilio Camafeita, Jesus Vazquez, Anna Barkaway, Loic Rolas, Sussan Nourshargh, Beatriz Dorado, Ignacio Benedicto, Vicente Andres
Summary: The study showed that while targeting progerin in mice with mild symptoms produced more significant benefits, it is never too late to treat Hutchinson-Gilford progeria syndrome (HGPS). Restricting the suppression of progerin and restoration of lamin A to vascular smooth muscle cells and cardiomyocytes can effectively prevent vascular disease and normalize lifespan.
Article
Cell Biology
Junyeop Kim, Yerim Hwang, Sumin Kim, Yujung Chang, Yunkyung Kim, Youngeun Kwon, Jongpil Kim
Summary: Partial cellular reprogramming using Oct4, Sox2, Klf4, and c-Myc can rejuvenate cells and reduce aged-cell phenotypes. In this study, we demonstrated that activating the endogenous Oct4 gene through CRISPR/dCas9 system can ameliorate aging in a mouse model of Hutchinson-Gilford progeria syndrome. The activated Oct4 expression not only induced epigenetic remodeling and suppressed progerin accumulation, but also rescued vascular pathological features and lifespan shortening. These findings suggest that CRISPR/dCas9-mediated Oct4 activation could be a promising strategy for treating geriatric diseases.
Article
Biochemistry & Molecular Biology
Jui-Chung Chiang, Wei-Min Chen, Ciara Newman, Benjamin P. C. Chen, Hsinyu Lee
Summary: The study reveals the crucial role of LPA(3) in regulating mitochondrial homeostasis, suppressing mitochondrial stress, and improving mitochondrial function. LPA(3) is found to be a promising therapeutic target for maintaining cellular youth and preventing mitochondrial oxidative stress.
Article
Biochemistry & Molecular Biology
Mi Ri Suh, Ikhyun Lim, Jongwook Kim, Pil-Sung Yang, Jin Seung Choung, Hye Ryeong Sim, Sung Chan Ha, MinYoung Kim
Summary: This study reports therapeutic effects of cord blood cells in a patient with HGPS, showing improvements in anthropometric measures, joint ROM, amelioration of atherosclerosis, and dyslipidemia induced by anti-inflammatory and anti-atherosclerotic responses. No serious adverse events were observed throughout the study period and one year beyond.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Cell Biology
Yosra Bejaoui, Aleem Razzaq, Noha A. Yousri, Junko Oshima, Andre Megarbane, Abeer Qannan, Ramya Pottabatula, Tanvir Alam, George M. Martin, Henning F. Horn, Thomas Haaf, Steve Horvath, Nady El Hajj
Summary: In this study, the researchers conducted a genome-wide methylation analysis on blood DNA samples from patients with progeroid laminopathies. They found DNA methylation alterations at specific CpG sites and regions, and identified possible pathways/mechanisms involved in the accelerated aging process of progeroid laminopathies. They also observed significant differences in methylation patterns between different subtypes of progeroid laminopathies.
Article
Cell Biology
Wayne A. Cabral, Chris Stephan, Masahiko Terajima, Abhirami A. Thaivalappil, Owen Blanchard, Urraca L. Tavarez, Narisu Narisu, Tingfen Yan, Stephen M. Wincovitch, Yuki Taga, Mitsuo Yamauchi, Kenneth M. Kozloff, Michael R. Erdos, Francis S. Collins
Summary: Hutchinson-Gilford progeria syndrome (HGPS) is a premature aging disorder caused by a mutation in the LMNA gene, resulting in the production of the toxic progerin protein. This study used a mouse model of HGPS to investigate the mechanisms of bone loss associated with the disease. The findings revealed abnormal bone formation, reduced bone mass, and increased fragility in the HGPS mice. The study also identified abnormal differentiation of osteoblasts and upregulation of adipogenic genes as contributing factors to the bone abnormalities in HGPS.
Review
Genetics & Heredity
Md Mominur Rahman, Kazi Sayma Ferdous, Muniruddin Ahmed, Mohammad Touhidul Islam, Md Robin Khan, Asma Perveen, Ghulam Md Ashraf, Md Sahab Uddin
Summary: Lamin A/C encoded by the LMNA gene is crucial for nuclear structure maintenance, with mutations leading to laminopathies such as Hutchinson-Gilford progeria syndrome (HGPS). HGPS, caused by abnormal splicing of the LMNA gene and progerin protein production, results in premature aging and is an area of emerging research for developing effective treatments.
CURRENT GENE THERAPY
(2021)
Article
Cell Biology
Merel Stiekema, Frederik Houben, Fons Verheyen, Marcel Borgers, Julia Menzel, Martin Meschkat, Marc A. M. J. van Zandvoort, Frans C. S. Ramaekers, Jos L. Broers
Summary: Invaginations of the nuclear membrane occur in different shapes, sizes, and compositions. The nucleoplasmic reticulum (NR) is composed of tubular invaginations consisting of either both the inner and outer nuclear membrane or only the inner nuclear membrane. The formation and structure of the NR are determined by proteins associated with the nuclear membrane. The study of nuclear invaginations and the NR is important for understanding various diseases.
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
(2022)
Article
Cell Biology
Haihuan Lin, Juliane Mensch, Maria Haschke, Kathrin Jager, Brigitte Kottgen, Jens Dernedde, Evelyn Orso, Michael Walter
Summary: Establishing five immortalized HGP fibroblast cell lines using retroviral infection with the catalytic subunit of hTERT demonstrated enhanced proliferative lifespan and reduced senescence signs, with growth increase and phenotype improvement independent of telomere elongation. The initial telomeric stabilization after hTERT infection and relatively low amounts of hTERT mRNA were sufficient for phenotype improvement, suggesting implications for therapeutic strategies in HGP and other premature aging syndromes.
Article
Biochemistry & Molecular Biology
Asako Goto, Mark Charman, Neale D. Ridgway
JOURNAL OF BIOLOGICAL CHEMISTRY
(2016)
Article
Cell Biology
Mark Charman, Asako Goto, Neale D. Ridgway
Article
Cell Biology
Kexin Zhao, Neale D. Ridgway
Article
Biochemistry & Molecular Biology
Parthajit Mukherjee, Hasam Madarati, Neale D. Ridgway, Jeffrey Atkinson
BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
(2018)
Article
Biochemistry & Molecular Biology
Kexin Zhao, Aarnoud van der Spoel, Claudia Castiglioni, Sarah Gale, Hideji Fujiwara, Daniel S. Ory, Neale D. Ridgway
BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR BASIS OF DISEASE
(2018)
Review
Biochemistry & Molecular Biology
Antonietta Pietrangelo, Neale D. Ridgway
CELLULAR AND MOLECULAR LIFE SCIENCES
(2018)
Review
Biochemistry & Molecular Biology
Neale D. Ridgway, Kexin Zhao
CURRENT OPINION IN LIPIDOLOGY
(2018)
Article
Cell Biology
Jin Huang, Carl J. Mousley, Louis Dacquay, Nairita Maitra, Guillaume Drin, Chong He, Neale D. Ridgway, Ashutosh Tripathi, Michael Kennedy, Brian K. Kennedy, Wenshe Liu, Kristin Baetz, Michael Polymenis, Vytas A. Bankaitis
DEVELOPMENTAL CELL
(2018)
Editorial Material
Biochemistry & Molecular Biology
Neale D. Ridgway
JOURNAL OF BIOLOGICAL CHEMISTRY
(2018)
Article
Cell Biology
Antonietta Pietrangelo, Neale D. Ridgway
JOURNAL OF CELL SCIENCE
(2018)
Article
Biochemistry & Molecular Biology
Jonghwa Lee, Neale D. Ridgway
JOURNAL OF LIPID RESEARCH
(2018)
Article
Cell Biology
Asako Goto, Mark Charman, Neale D. Ridgway
Article
Multidisciplinary Sciences
Antonietta Pietrangelo, Neale D. Ridgway
Review
Biochemistry & Molecular Biology
Wasitha P. D. Wass Thilakarathna, H. P. Vasantha Rupasinghe, Neale D. Ridgway
Summary: HCC is primarily caused by chronic infections such as hepatitis B and C viruses, alcoholic liver disease, and non-alcoholic fatty liver disease. Genetic background and single nucleotide polymorphisms also play a role in HCC development. Probiotics can mitigate HCC risk by modulating gut microbiota, reducing inflammation, and exhibiting antiviral and anticancer effects.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Biochemistry & Molecular Biology
Gabriel G. Dorighello, Leandro H. P. Assis, Thiago Rentz, Joseane Morari, Monique F. M. Santana, Marisa Passarelli, Neale D. Ridgway, Anibal E. Vercesi, Helena C. F. Oliveira
Summary: The expression of CETP in macrophages modulates mitochondrial structure and function, promotes an intracellular antioxidant state and oxidative metabolism, and reduces the expression of inflammatory genes and cholesterol accumulation.
Article
Biochemistry & Molecular Biology
Chenchen Bian, Xiangtong Yuan, Caihong Zeng, Jian Sun, Gen Kaneko, Hong Ji
Summary: This study investigated the mechanism of docosahexaenoic acid (DHA)-induced apoptosis mediated by mitophagy, using grass carp as an animal model. The results showed that inhibition of mitophagy alleviated apoptosis and eliminated the inhibition of lipid accumulation induced by DHA. Mechanistically, DHA induced mitophagy by activating the PPAR gamma-LC3-BNIP3 pathway. Inhibition of PPAR gamma decreased autophagy-related gene expression and prevented BNIP3/NIX-mediated mitophagy-induced apoptosis, thereby alleviating the inhibition of lipid accumulation.
BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR AND CELL BIOLOGY OF LIPIDS
(2024)
Article
Biochemistry & Molecular Biology
Venkatesan Ramya, Karuppiah Prakash Shyam, Arulanandu Angelmary, Balamuthu Kadalmani
Summary: This study reveals that Lauric acid (LA) exerts an epigenetic regulation and metabolic reprogramming on SH-SY5Y neuroblastoma cells through modulation of lncRNA HOTAIR, remodeling of chromatin H3K4 tri-methylation and regulation of glucose uptake by controlling NF-kappa B activation.
BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR AND CELL BIOLOGY OF LIPIDS
(2024)
Article
Biochemistry & Molecular Biology
Sreelekshmi Sreekumar, Karyath Palliyath Gangaraj, Manikantan Syamala Kiran
Summary: This study investigates the intricate interplay between angiogenic regulation and the browning of white adipocytes. The findings reveal that concurrent activation of angiogenesis is necessary for inducing browning of white adipocytes. The study also highlights the role of Vascular endothelial growth factor (VEGF) in promoting angiogenesis and triggering the browning process through the activation of Estrogen receptor alpha (ER alpha) signaling pathway.
BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR AND CELL BIOLOGY OF LIPIDS
(2024)
Article
Biochemistry & Molecular Biology
Zanxia Cao, Liling Zhao, Mingcui Chen, Zhihong Shi, Lei Liu
Summary: This study investigated the translocation process of cholesterol/calcitriol in bacterial membranes and their effects on membrane structure. Calcitriol facilitated water transport across the membrane, while cholesterol had the opposite effect. These findings contribute to a better understanding of the relationship between cholesterol/calcitriol concentrations, lipid bilayer structure, and water permeation.
BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR AND CELL BIOLOGY OF LIPIDS
(2024)
Article
Biochemistry & Molecular Biology
Xiaozhen Guo, Jiawen Wang, Hualing Xu, Yangyang Wang, Yutang Cao, Yingquan Wen, Jiaqi Li, Yameng Liu, Kanglong Wang, Jue Wang, Xianchun Zhong, Chuying Sun, Yongxin Zhang, Jingyi Xu, Cuina Li, Pengxiang Mu, Lingyan Xu, Cen Xie
Summary: This study aims to investigate the role of the gut microbiota-bile acid axis in regulating the diurnal rhythms of metabolic homeostasis and assess the impact of obesity on them. The results show that high fat diet feeding and Leptin gene deficiency disrupt the rhythmic patterns of insulin sensitivity and serum total cholesterol levels. The study provides compelling evidence for the association between diurnal rhythm of insulin sensitivity and gut microbiota-bile acid axis, and elucidates the deleterious effects of obesity on gut microbiome-bile acid metabolism.
BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR AND CELL BIOLOGY OF LIPIDS
(2024)
Article
Biochemistry & Molecular Biology
Giuseppe Pepe, Maria Cotugno, Federico Marracino, Luca Capocci, Ludovica Pizzati, Maurizio Forte, Rosita Stanzione, Pamela Scarselli, Alba Di Pardo, Sebastiano Sciarretta, Massimo Volpe, Speranza Rubattu, Vittorio Maglione
Summary: The study found that enzymes involved in sphingolipid metabolism show abnormal expression in the cardiac tissue of hypertensive rat models, which may be related to the susceptibility to cardiac damage.
BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR AND CELL BIOLOGY OF LIPIDS
(2024)