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Okahata M, Sawada N, Nakao K, Ohta A, Kuhara A. Screening for cold tolerance genes in C. elegans, whose expressions are affected by anticancer drugs camptothecin and leptomycin B. Sci Rep 2024; 14:5401. [PMID: 38443452 PMCID: PMC10914781 DOI: 10.1038/s41598-024-55794-z] [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: 09/27/2023] [Accepted: 02/27/2024] [Indexed: 03/07/2024] Open
Abstract
Temperature is a vital environmental factor affecting organisms' survival as they determine the mechanisms to tolerate rapid temperature changes. We demonstrate an experimental system for screening chemicals that affect cold tolerance in Caenorhabditis elegans. The anticancer drugs leptomycin B and camptothecin were among the 4000 chemicals that were screened as those affecting cold tolerance. Genes whose expression was affected by leptomycin B or camptothecin under cold stimuli were investigated by transcriptome analysis. Abnormal cold tolerance was detected in several mutants possessing genes that were rendered defective and whose expression altered after exposure to either leptomycin B or camptothecin. The genetic epistasis analysis revealed that leptomycin B or camptothecin may increase cold tolerance by affecting a pathway upstream of the insulin receptor DAF-2 that regulates cold tolerance in the intestine. Our experimental system combining drug and cold tolerance could be used for a comprehensive screening of genes that control cold tolerance at a low cost and in a short time period.
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Affiliation(s)
- Misaki Okahata
- Graduate School of Frontier Biosciences, Osaka University Suita, Osaka, Japan
- Graduate School of Natural Science, Konan University, Kobe, Hyogo, Japan
- Faculty of Science and Engineering, Konan University, Kobe, Hyogo, Japan
- Institute for Integrative Neurobiology, Konan University, Kobe, Hyogo, Japan
| | - Natsumi Sawada
- Graduate School of Natural Science, Konan University, Kobe, Hyogo, Japan
| | - Kenji Nakao
- Biomolecular Research Laboratories, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Japan
| | - Akane Ohta
- Graduate School of Natural Science, Konan University, Kobe, Hyogo, Japan.
- Faculty of Science and Engineering, Konan University, Kobe, Hyogo, Japan.
- Institute for Integrative Neurobiology, Konan University, Kobe, Hyogo, Japan.
| | - Atsushi Kuhara
- Graduate School of Natural Science, Konan University, Kobe, Hyogo, Japan.
- Faculty of Science and Engineering, Konan University, Kobe, Hyogo, Japan.
- Institute for Integrative Neurobiology, Konan University, Kobe, Hyogo, Japan.
- PRIME, AMED, Japan Agency for Medical Research and Development, Tokyo, Japan.
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Ohnishi K, Sokabe T, Miura T, Tominaga M, Ohta A, Kuhara A. G protein-coupled receptor-based thermosensation determines temperature acclimatization of Caenorhabditis elegans. Nat Commun 2024; 15:1660. [PMID: 38396085 PMCID: PMC10891075 DOI: 10.1038/s41467-024-46042-z] [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: 03/30/2023] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
Animals must sense and acclimatize to environmental temperatures for survival, yet their thermosensing mechanisms other than transient receptor potential (TRP) channels remain poorly understood. We identify a trimeric G protein-coupled receptor (GPCR), SRH-40, which confers thermosensitivity in sensory neurons regulating temperature acclimatization in Caenorhabditis elegans. Systematic knockdown of 1000 GPCRs by RNAi reveals GPCRs involved in temperature acclimatization, among which srh-40 is highly expressed in the ADL sensory neuron, a temperature-responsive chemosensory neuron, where TRP channels act as accessorial thermoreceptors. In vivo Ca2+ imaging demonstrates that an srh-40 mutation reduced the temperature sensitivity of ADL, resulting in supranormal temperature acclimatization. Ectopically expressing SRH-40 in a non-warmth-sensing gustatory neuron confers temperature responses. Moreover, temperature-dependent SRH-40 activation is reconstituted in Drosophila S2R+ cells. Overall, SRH-40 may be involved in thermosensory signaling underlying temperature acclimatization. We propose a dual thermosensing machinery through a GPCR and TRP channels in a single sensory neuron.
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Affiliation(s)
- Kohei Ohnishi
- Graduate school of Natural Science, Konan University, Kobe, Hyogo, 658-8501, Japan
- Faculty of Science and Engineering, Konan University, Kobe, Hyogo, 658-8501, Japan
- Institute for Integrative Neurobiology, Konan University, Kobe, Hyogo, 658-8501, Japan
- Physiology and Biophysics, Graduate School of Biomedical and Health Sciences (Medical), Hiroshima University, Hiroshima, 734-8553, Japan
| | - Takaaki Sokabe
- Division of Cell Signaling, National Institute for Physiological Sciences, Okazaki, Aichi, 444-8787, Japan.
- Thermal Biology Group, Exploratory Research Center on Life and Living Systems, National Institutes of Natural Sciences, Okazaki, Aichi, 444-8787, Japan.
- Department of Physiological Sciences, SOKENDAI, Okazaki, Aichi, 444-8787, Japan.
- AMED-PRIME, Japan Agency for Medical Research and Development, Tokyo, 100-0004, Japan.
| | - Toru Miura
- Faculty of Science and Engineering, Konan University, Kobe, Hyogo, 658-8501, Japan
- Institute for Integrative Neurobiology, Konan University, Kobe, Hyogo, 658-8501, Japan
| | - Makoto Tominaga
- Division of Cell Signaling, National Institute for Physiological Sciences, Okazaki, Aichi, 444-8787, Japan
- Thermal Biology Group, Exploratory Research Center on Life and Living Systems, National Institutes of Natural Sciences, Okazaki, Aichi, 444-8787, Japan
- Department of Physiological Sciences, SOKENDAI, Okazaki, Aichi, 444-8787, Japan
| | - Akane Ohta
- Graduate school of Natural Science, Konan University, Kobe, Hyogo, 658-8501, Japan.
- Faculty of Science and Engineering, Konan University, Kobe, Hyogo, 658-8501, Japan.
- Institute for Integrative Neurobiology, Konan University, Kobe, Hyogo, 658-8501, Japan.
| | - Atsushi Kuhara
- Graduate school of Natural Science, Konan University, Kobe, Hyogo, 658-8501, Japan.
- Faculty of Science and Engineering, Konan University, Kobe, Hyogo, 658-8501, Japan.
- Institute for Integrative Neurobiology, Konan University, Kobe, Hyogo, 658-8501, Japan.
- AMED-PRIME, Japan Agency for Medical Research and Development, Tokyo, 100-0004, Japan.
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Moreira P, Papatheodorou P, Deng S, Gopal S, Handley A, Powell DR, Pocock R. Nuclear factor Y is a pervasive regulator of neuronal gene expression. Cell Rep 2023; 42:113582. [PMID: 38096055 DOI: 10.1016/j.celrep.2023.113582] [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: 02/12/2023] [Revised: 10/12/2023] [Accepted: 11/28/2023] [Indexed: 12/30/2023] Open
Abstract
Nervous system function relies on the establishment of complex gene expression programs that provide neuron-type-specific and core pan-neuronal features. These complementary regulatory paradigms are controlled by terminal selector and parallel-acting transcription factors (TFs), respectively. Here, we identify the nuclear factor Y (NF-Y) TF as a pervasive direct and indirect regulator of both neuron-type-specific and pan-neuronal gene expression. Mapping global NF-Y targets reveals direct binding to the cis-regulatory regions of pan-neuronal genes and terminal selector TFs. We show that NFYA-1 controls pan-neuronal gene expression directly through binding to CCAAT boxes in target gene promoters and indirectly by regulating the expression of terminal selector TFs. Further, we find that NFYA-1 regulation of neuronal gene expression is important for neuronal activity and motor function. Thus, our research sheds light on how global neuronal gene expression programs are buffered through direct and indirect regulatory mechanisms.
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Affiliation(s)
- Pedro Moreira
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute and Department of Anatomy and Developmental Biology, Monash University, Melbourne, VIC 3800, Australia
| | - Paul Papatheodorou
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute and Department of Anatomy and Developmental Biology, Monash University, Melbourne, VIC 3800, Australia
| | - Shuer Deng
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute and Department of Anatomy and Developmental Biology, Monash University, Melbourne, VIC 3800, Australia
| | - Sandeep Gopal
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute and Department of Anatomy and Developmental Biology, Monash University, Melbourne, VIC 3800, Australia
| | - Ava Handley
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute and Department of Anatomy and Developmental Biology, Monash University, Melbourne, VIC 3800, Australia
| | - David R Powell
- Bioinformatics Platform, Monash University, Melbourne, VIC 3800, Australia
| | - Roger Pocock
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute and Department of Anatomy and Developmental Biology, Monash University, Melbourne, VIC 3800, Australia.
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Ohta A, Yamashiro S, Kuhara A. Temperature acclimation: Temperature shift induces system conversion to cold tolerance in C. elegans. Neurosci Res 2023:S0168-0102(23)00075-5. [PMID: 37086751 DOI: 10.1016/j.neures.2023.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/15/2023] [Accepted: 04/18/2023] [Indexed: 04/24/2023]
Abstract
Acclimation to temperature is one of the survival strategies used by organisms to adapt to changing environmental temperatures. Caenorhabditis elegans' cold tolerance is altered by previous cultivation temperature, and similarly, past low-temperature induces a longer lifespan. Temperature is thought to cause a large shift in homeostasis, lipid metabolism, and reproduction in the organism because it is a direct physiological factor during chemical events. This paper will share and discuss what we know so far about the neural and molecular mechanisms that control cold tolerance and lifespan by altering lipid metabolism and physiological characteristics. We hope that this will contribute to a better understanding of how organisms respond to temperature changes.
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Affiliation(s)
- Akane Ohta
- Graduate School of Natural Science, Konan University, Kobe 658-8501, JAPAN; Faculty of Science and Engineering, Konan University, Kobe 658-8501, JAPAN; Institute for Integrative Neurobiology, Konan University, Kobe 658-8501, JAPAN; AMED-PRIME, Japan Agency for Medical Research and Development, Tokyo 100-0004, JAPAN.
| | - Serina Yamashiro
- Graduate School of Natural Science, Konan University, Kobe 658-8501, JAPAN; Institute for Integrative Neurobiology, Konan University, Kobe 658-8501, JAPAN
| | - Atsushi Kuhara
- Graduate School of Natural Science, Konan University, Kobe 658-8501, JAPAN; Faculty of Science and Engineering, Konan University, Kobe 658-8501, JAPAN; Institute for Integrative Neurobiology, Konan University, Kobe 658-8501, JAPAN; AMED-PRIME, Japan Agency for Medical Research and Development, Tokyo 100-0004, JAPAN.
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