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Mat A, Vu HH, Wolf E, Tessmar-Raible K. All Light, Everywhere? Photoreceptors at Nonconventional Sites. Physiology (Bethesda) 2024; 39:0. [PMID: 37905983 DOI: 10.1152/physiol.00017.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 10/29/2023] [Accepted: 10/29/2023] [Indexed: 11/02/2023] Open
Abstract
One of the biggest environmental alterations we have made to our species is the change in the exposure to light. During the day, we typically sit behind glass windows illuminated by artificial light that is >400 times dimmer and has a very different spectrum than natural daylight. On the opposite end are the nights that are now lit up by several orders of magnitude. This review aims to provide food for thought as to why this matters for humans and other animals. Evidence from behavioral neuroscience, physiology, chronobiology, and molecular biology is increasingly converging on the conclusions that the biological nonvisual functions of light and photosensory molecules are highly complex. The initial work of von Frisch on extraocular photoreceptors in fish, the identification of rhodopsins as the molecular light receptors in animal eyes and eye-like structures and cryptochromes as light sensors in nonmammalian chronobiology, still allowed for the impression that light reception would be a relatively restricted, localized sense in most animals. However, light-sensitive processes and/or sensory proteins have now been localized to many different cell types and tissues. It might be necessary to consider nonlight-responding cells as the exception, rather than the rule.
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Affiliation(s)
- Audrey Mat
- Max Perutz Labs, University of Vienna, Vienna BioCenter, Vienna, Austria
- VIPS2, Vienna BioCenter, Vienna, Austria
| | - Hong Ha Vu
- Institute of Molecular Physiology, Johannes Gutenberg-University, Mainz, Germany
| | - Eva Wolf
- Institute of Molecular Physiology, Johannes Gutenberg-University, Mainz, Germany
- Institute of Molecular Biology, Mainz, Germany
| | - Kristin Tessmar-Raible
- Max Perutz Labs, University of Vienna, Vienna BioCenter, Vienna, Austria
- Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
- Carl-von-Ossietzky University, Oldenburg, Germany
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Nguyen LC, Nguyen NM, Nguyen TN, Vu HH, Khuc TT, La HD, Nguyen NT, Nguyen KV, Nguyen OT, Luu DTM, Doan HTN. 2-year survival estimation for decompensated cirrhosis patients of prognostic scoring systems. Eur Rev Med Pharmacol Sci 2023; 27:10909-10916. [PMID: 38039020 DOI: 10.26355/eurrev_202311_34458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
OBJECTIVE Prognostic models proposed for cirrhotic patients' survival have not been satisfactorily investigated in the Vietnam population, especially in the medium-term period. PATIENTS AND METHODS In this prospective study, we enrolled a total of 904 patients admitted to Hepato-Gastroenterology Center, Bach Mai Hospital from December 2019 to November 2021 and calculated their CP, MELD, MELD-Na score, IMELD, Refit MELD, and Refit MELD-Na after 2-year follow-up to compare their survival prognosis. RESULTS The mean age of the patients was 53.8 ±10.8 years, and males constituted 91%. Compared with the surviving group, deceased patients had statistically significant lower albumin, higher INR, serum bilirubin, and creatinine levels with higher means of all prognostic scores. RefitMELD score had the highest AUC (0.768), followed by MELD (0.766), and the lowest belonged to RefitMELDNa (0.669). CONCLUSIONS In conclusion, deceased patients had significantly higher values of Child-Pugh score and all MELD-based scores than survival. RefitMELD is the most reliable scoring system to predict 2-year mortality in patients with decompensated liver cirrhosis.
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Affiliation(s)
- L C Nguyen
- Gastroenterology and Hepatology Center, Bach Mai Hospital, Giai Phong Road, Ha Noi, Vietnam.
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Vu HH, Behrmann H, Hanić M, Jeyasankar G, Krishnan S, Dannecker D, Hammer C, Gunkel M, Solov'yov IA, Wolf E, Behrmann E. A marine cryptochrome with an inverse photo-oligomerization mechanism. Nat Commun 2023; 14:6918. [PMID: 37903809 PMCID: PMC10616196 DOI: 10.1038/s41467-023-42708-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 10/19/2023] [Indexed: 11/01/2023] Open
Abstract
Cryptochromes (CRYs) are a structurally conserved but functionally diverse family of proteins that can confer unique sensory properties to organisms. In the marine bristle worm Platynereis dumerilii, its light receptive cryptochrome L-CRY (PdLCry) allows the animal to discriminate between sunlight and moonlight, an important requirement for synchronizing its lunar cycle-dependent mass spawning. Using cryo-electron microscopy, we show that in the dark, PdLCry adopts a dimer arrangement observed neither in plant nor insect CRYs. Intense illumination disassembles the dimer into monomers. Structural and functional data suggest a mechanistic coupling between the light-sensing flavin adenine dinucleotide chromophore, the dimer interface, and the C-terminal tail helix, with a likely involvement of the phosphate binding loop. Taken together, our work establishes PdLCry as a CRY protein with inverse photo-oligomerization with respect to plant CRYs, and provides molecular insights into how this protein might help discriminating the different light intensities associated with sunlight and moonlight.
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Affiliation(s)
- Hong Ha Vu
- Institute of Molecular Physiology (IMP), Johannes Gutenberg-University Mainz, Hanns-Dieter-Hüsch-Weg 17, 55128, Mainz, Germany
| | - Heide Behrmann
- University of Cologne, Faculty of Mathematics and Natural Sciences, Institute of Biochemistry, Zülpicher Straße 47, 50674, Cologne, Germany
| | - Maja Hanić
- Institute of Physics, Carl von Ossietzky University of Oldenburg, Carl-von-Ossietzky Straße 9-11, 26129, Oldenburg, Germany
| | - Gayathri Jeyasankar
- University of Cologne, Faculty of Mathematics and Natural Sciences, Institute of Biochemistry, Zülpicher Straße 47, 50674, Cologne, Germany
| | - Shruthi Krishnan
- Institute of Molecular Physiology (IMP), Johannes Gutenberg-University Mainz, Hanns-Dieter-Hüsch-Weg 17, 55128, Mainz, Germany
| | - Dennis Dannecker
- University of Cologne, Faculty of Mathematics and Natural Sciences, Institute of Biochemistry, Zülpicher Straße 47, 50674, Cologne, Germany
| | - Constantin Hammer
- Institute of Molecular Physiology (IMP), Johannes Gutenberg-University Mainz, Hanns-Dieter-Hüsch-Weg 17, 55128, Mainz, Germany
| | - Monika Gunkel
- University of Cologne, Faculty of Mathematics and Natural Sciences, Institute of Biochemistry, Zülpicher Straße 47, 50674, Cologne, Germany
| | - Ilia A Solov'yov
- Institute of Physics, Carl von Ossietzky University of Oldenburg, Carl-von-Ossietzky Straße 9-11, 26129, Oldenburg, Germany
- Research Center for Neurosensory Sciences, Carl von Ossietzky University of Oldenburg, Carl-von-Ossietzky Straße 9-11, 26111, Oldenburg, Germany
- Center for Nanoscale Dynamics (CENAD), Carl von Ossietzky Universität Oldenburg, Ammerländer Heerstr. 114-118, 26129, Oldenburg, Germany
| | - Eva Wolf
- Institute of Molecular Physiology (IMP), Johannes Gutenberg-University Mainz, Hanns-Dieter-Hüsch-Weg 17, 55128, Mainz, Germany.
- Institute of Molecular Biology (IMB), 55128, Mainz, Germany.
| | - Elmar Behrmann
- University of Cologne, Faculty of Mathematics and Natural Sciences, Institute of Biochemistry, Zülpicher Straße 47, 50674, Cologne, Germany.
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Park MK, Zhang L, Min KW, Cho JH, Yeh CC, Moon H, Hormaechea-Agulla D, Mun H, Ko S, Lee JW, Jathar S, Smith AS, Yao Y, Giang NT, Vu HH, Yan VC, Bridges MC, Kourtidis A, Muller F, Chang JH, Song SJ, Nakagawa S, Hirose T, Yoon JH, Song MS. NEAT1 is essential for metabolic changes that promote breast cancer growth and metastasis. Cell Metab 2021; 33:2380-2397.e9. [PMID: 34879239 PMCID: PMC8813003 DOI: 10.1016/j.cmet.2021.11.011] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 08/27/2021] [Accepted: 11/16/2021] [Indexed: 01/08/2023]
Abstract
Accelerated glycolysis is the main metabolic change observed in cancer, but the underlying molecular mechanisms and their role in cancer progression remain poorly understood. Here, we show that the deletion of the long noncoding RNA (lncRNA) Neat1 in MMTV-PyVT mice profoundly impairs tumor initiation, growth, and metastasis, specifically switching off the penultimate step of glycolysis. Mechanistically, NEAT1 directly binds and forms a scaffold bridge for the assembly of PGK1/PGAM1/ENO1 complexes and thereby promotes substrate channeling for high and efficient glycolysis. Notably, NEAT1 is upregulated in cancer patients and correlates with high levels of these complexes, and genetic and pharmacological blockade of penultimate glycolysis ablates NEAT1-dependent tumorigenesis. Finally, we demonstrate that Pinin mediates glucose-stimulated nuclear export of NEAT1, through which it exerts isoform-specific and paraspeckle-independent functions. These findings establish a direct role for NEAT1 in regulating tumor metabolism, provide new insights into the Warburg effect, and identify potential targets for therapy.
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Affiliation(s)
- Mi Kyung Park
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Li Zhang
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Kyung-Won Min
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC 29425, USA; Department of Biology, College of Natural Sciences, Gangneung-Wonju National University, Gangneung-si, Gangwon-do 25457, Republic of Korea
| | - Jung-Hyun Cho
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Chih-Chen Yeh
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Hyesu Moon
- Soonchunhyang Institute of Medi-bio Science, Soonchunhyang University, Cheonan-si, Chungcheongnam-do 31151, Republic of Korea
| | - Daniel Hormaechea-Agulla
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Hyejin Mun
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Seungbeom Ko
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Ji Won Lee
- Department of Biology, College of Natural Sciences, Gangneung-Wonju National University, Gangneung-si, Gangwon-do 25457, Republic of Korea
| | - Sonali Jathar
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC 29425, USA; Laboratory of lncRNA Biology, National Center for Cell Science, Pune, Maharashtra 411007, India
| | - Aubrey S Smith
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Yixin Yao
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Nguyen Thu Giang
- Department of Biology Education, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Hong Ha Vu
- Department of Biology Education, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Victoria C Yan
- Department of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Mary C Bridges
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Antonis Kourtidis
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Florian Muller
- Department of Cancer Systems Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Jeong Ho Chang
- Department of Biology Education, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Su Jung Song
- Soonchunhyang Institute of Medi-bio Science, Soonchunhyang University, Cheonan-si, Chungcheongnam-do 31151, Republic of Korea
| | - Shinichi Nakagawa
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido 060-0812, Japan
| | - Tetsuro Hirose
- Graduate School of Frontier Biosciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Je-Hyun Yoon
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC 29425, USA.
| | - Min Sup Song
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
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Nguyen YTT, Nguyen TB, Nguyen TP, Nguyen TH, Vu HH, Nguyen TV, Pham TH, Do TT, Duong HT, Nguyen LH, Partridge JM, Kile JC, Iuliano A, Nguyen HT. Healthcare seeking behavior for respiratory illness in a northern province of Vietnam. Antimicrob Resist Infect Control 2015. [PMCID: PMC4474730 DOI: 10.1186/2047-2994-4-s1-p16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Nguyen YTT, Nguyen TB, Nguyen TP, Nguyen TH, Vu HH, Le MTQ, Tran DN, Do TT, Partridge JM, Kile JC, Nguyen TV, Nguyen HT. Influenza-related severe acute respiratory infection in the north of Vietnam: healthcare burden and economic impact. Antimicrob Resist Infect Control 2015. [PMCID: PMC4474855 DOI: 10.1186/2047-2994-4-s1-p14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Vu HH. Cultural barriers between obstetrician-gynecologists and Vietnamese/Chinese immigrant women. Tex Med 1996; 92:47-52. [PMID: 8923773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
In the latter part of the 20th century, Asian immigration has exploded. The two main groups, Chinese and Vietnamese, share many cultural views. Confucianism, Taoism, and spiritualism play an important role in the Chinese and Vietnamese psyches and influence deeply their beliefs of health, disease, birth, and death. Before the introduction of Western medicine, both countries relied heavily on the Taoist model of health and disease. That is, disease is disharmony in the body and herbal medicines are used to restore that balance. Since the introduction of Western medicine, the two countries have adopted a crisis-oriented system of care in which, except for vaccinations, preventive medicine is virtually ignored. The Confucian beliefs of privacy and female modesty have made the field of obstetrics and gynecology particularly susceptible to noncommunication and misunderstandings, while traditional beliefs in Taoist medicine may delay or interfere with Western health care.
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