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Arioka M, Miura K, Han R, Igawa K, Takahashi-Yanaga F, Sasaguri T. Mammalian target of differentiation-inducing factor-1 is mitochondrial malate dehydrogenase for activation of AMP-activated protein kinase and induction of mitochondrial fission. Life Sci 2024; 351:122807. [PMID: 38852800 DOI: 10.1016/j.lfs.2024.122807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/23/2024] [Accepted: 06/04/2024] [Indexed: 06/11/2024]
Abstract
AIMS Differentiation-inducing factor-1 (DIF-1) is a polyketide produced by Dictyostelium discoideum that inhibits growth and migration, while promoting the differentiation of Dictyostelium stalk cells through unknown mechanisms. DIF-1 localizes in stalk mitochondria. In addition to its effect on Dictyostelium, DIF-1 also inhibits growth and migration, and induces mitochondrial fission followed by mitophagy in mammalian cells, at least in part by activating AMP-activated protein kinase (AMPK). In a previous study, we found that DIF-1 binds to mitochondrial malate dehydrogenase (MDH2) and inhibits its activity in HeLa cells. In the present study, we investigated whether MDH2 serves as a pharmacological target of DIF-1 in mammalian cells. MAIN METHODS To examine the enzymatic activity of MDH, mitochondrial morphology, and molecular mechanisms of DIF-1 action, we conducted an MDH reverse reaction assay, immunofluorescence staining, western blotting, and RNA interference using mammalian cells such as human umbilical vein endothelial cells, human cervical cancer cells, mouse endothelial cells, and mouse breast cancer cells. KEY FINDINGS DIF-1 inhibited mitochondrial but not cytoplasmic MDH activity. Similar to DIF-1, LW6, an authentic MDH2 inhibitor, induced phosphorylation of AMPK, resulting in the phosphorylation of acetyl-CoA carboxylase (ACC) and the dephosphorylation of p70 S6 kinase with approximately the same potency. DIF-1 and LW6 induced mitochondrial fission. Furthermore, MDH2 knockdown using siRNA reproduced the DIF-1 action on the AMPK signaling and mitochondrial morphology. Conversely, an AMPK inhibitor prevented DIF-1-induced mitochondrial fission. SIGNIFICANCE We propose that MDH2 is a mammalian target of DIF-1 for the activation of AMPK and induction of mitochondrial fission.
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Affiliation(s)
- Masaki Arioka
- Department of Pharmacology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan; Department of Clinical Pharmacology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan.
| | - Koichi Miura
- Department of Clinical Pharmacology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Ruzhe Han
- Department of Clinical Pharmacology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazunobu Igawa
- Department of Chemistry, Faculty of Advanced Science and Technology, Kumamoto University, Kumamoto, Japan.
| | - Fumi Takahashi-Yanaga
- Department of Pharmacology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan.
| | - Toshiyuki Sasaguri
- Department of Pharmacology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan; Department of Clinical Pharmacology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan.
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2
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Yoshida N, Kikuchi H, Hirai M, Balikagala B, Anywar DA, Taka H, Kaga N, Miura Y, Fukuda N, Odongo-Aginya EI, Kubohara Y, Mita T. A longer-chain acylated derivative of Dictyostelium differentiation-inducing factor-1 enhances the antimalarial activity against Plasmodium parasites. Biochem Pharmacol 2024; 225:116243. [PMID: 38697310 DOI: 10.1016/j.bcp.2024.116243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 04/25/2024] [Accepted: 04/25/2024] [Indexed: 05/04/2024]
Abstract
The spread of malarial parasites resistant to first-line treatments such as artemisinin combination therapies is a global health concern. Differentiation-inducing factor 1 (DIF-1) is a chlorinated alkylphenone (1-(3,5-dichloro-2,6-dihydroxy-4-methoxyphenyl) hexan-1-one) originally found in the cellular slime mould Dictyostelium discoideum. We previously showed that some derivatives of DIF-1, particularly DIF-1(+2) (1-(3,5-dichloro-2,6-dihydroxy-4-methoxyphenyl) octan-1-one), exert potent antimalarial activities. In this study, we synthesised DIF-1(+3) (1-(3,5-dichloro-2,6-dihydroxy-4-methoxyphenyl) nonan-1-one). We then evaluated the effects of DIF-1(+3) in vitro on Plasmodium falciparum and in vivo over 7 days (50-100 mg/kg/day) in a mouse model of Plasmodium berghei. DIF-1(+3) exhibited a half-maximal inhibitory concentration of approximately 20-30 % of DIF-1(+2) in three laboratory strains with a selectivity index > 263, including in strains resistant to chloroquine and artemisinin. Parasite growth and multiplication were almost completely suppressed by treatment with 100 mg/kg DIF-1(+3). The survival time of infected mice was significantly increased (P = 0.006) with no apparent adverse effects. In summary, addition of an acyl group to DIF-1(+2) to prepare DIF-1(+3) substantially enhanced antimalarial activity, even in drug-resistant malaria, indicating the potential of applying DIF-1(+3) for malaria treatment.
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Affiliation(s)
- Naoko Yoshida
- Department of Tropical Medicine and Parasitology, Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Haruhisa Kikuchi
- Division of Natural Medicines, Faculty of Pharmacy, Keio University, Tokyo 105-8512, Japan
| | - Makoto Hirai
- Department of Tropical Medicine and Parasitology, Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Betty Balikagala
- Department of Tropical Medicine and Parasitology, Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Denis A Anywar
- Faculty of Medicine, Gulu University, P.O. Box 166, Gulu, Uganda
| | - Hikari Taka
- Laboratory of Proteomics and Biomolecular Science, Biomedical Research Core Facilities, Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Naoko Kaga
- Laboratory of Proteomics and Biomolecular Science, Biomedical Research Core Facilities, Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Yoshiki Miura
- Laboratory of Proteomics and Biomolecular Science, Biomedical Research Core Facilities, Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Naoyuki Fukuda
- Department of Tropical Medicine and Parasitology, Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | | | - Yuzuru Kubohara
- Laboratory of Health and Life Science, Graduate School of Health and Sports Science, Juntendo University, Inzai, Chiba 270-1695, Japan.
| | - Toshihiro Mita
- Department of Tropical Medicine and Parasitology, Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan.
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Kubohara Y, Fukunaga Y, Shigenaga A, Kikuchi H. Dictyostelium Differentiation-Inducing Factor 1 Promotes Glucose Uptake via Direct Inhibition of Mitochondrial Malate Dehydrogenase in Mouse 3T3-L1 Cells. Int J Mol Sci 2024; 25:1889. [PMID: 38339168 PMCID: PMC10855897 DOI: 10.3390/ijms25031889] [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: 12/14/2023] [Revised: 01/25/2024] [Accepted: 02/02/2024] [Indexed: 02/12/2024] Open
Abstract
Differentiation-inducing factor 1 (DIF-1), found in Dictyostelium discoideum, has antiproliferative and glucose-uptake-promoting activities in mammalian cells. DIF-1 is a potential lead for the development of antitumor and/or antiobesity/antidiabetes drugs, but the mechanisms underlying its actions have not been fully elucidated. In this study, we searched for target molecules of DIF-1 that mediate the actions of DIF-1 in mammalian cells by identifying DIF-1-binding proteins in human cervical cancer HeLa cells and mouse 3T3-L1 fibroblast cells using affinity chromatography and liquid chromatography-tandem mass spectrometry and found mitochondrial malate dehydrogenase (MDH2) to be a DIF-1-binding protein in both cell lines. Since DIF-1 has been shown to directly inhibit MDH2 activity, we compared the effects of DIF-1 and the MDH2 inhibitor LW6 on the growth of HeLa and 3T3-L1 cells and on glucose uptake in confluent 3T3-L1 cells in vitro. In both HeLa and 3T3-L1 cells, DIF-1 at 10-40 μM dose-dependently suppressed growth, whereas LW6 at 20 μM, but not at 2-10 μM, significantly suppressed growth in these cells. In confluent 3T3-L1 cells, DIF-1 at 10-40 μM significantly promoted glucose uptake, with the strongest effect at 20 μM DIF-1, whereas LW6 at 2-20 μM significantly promoted glucose uptake, with the strongest effect at 10 μM LW6. Western blot analyses showed that LW6 (10 μM) and DIF-1 (20 μM) phosphorylated and, thus, activated AMP kinase in 3T3-L1 cells. Our results suggest that MDH2 inhibition can suppress cell growth and promote glucose uptake in the cells, but appears to promote glucose uptake more strongly than it suppresses cell growth. Thus, DIF-1 may promote glucose uptake, at least in part, via direct inhibition of MDH2 and a subsequent activation of AMP kinase in 3T3-L1 cells.
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Affiliation(s)
- Yuzuru Kubohara
- Laboratory of Health and Life Science, Graduate School of Health and Sports Science, Juntendo University, Inzai 270-1695, Japan
| | - Yuko Fukunaga
- Department of Animal Risk Management, Faculty of Risk and Crisis Management, Chiba Institute of Science, Choshi 288-0025, Japan;
| | - Ayako Shigenaga
- Institute of Health and Sports Science & Medicine, Juntendo University, Inzai 270-1695, Japan;
| | - Haruhisa Kikuchi
- Division of Natural Medicines, Faculty of Pharmacy, Keio University, Tokyo 105-8512, Japan;
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Kubohara Y, Fukunaga Y, Kikuchi H, Kuwayama H. Pharmacological Evidence That Dictyostelium Differentiation-Inducing Factor 1 Promotes Glucose Uptake Partly via an Increase in Intracellular cAMP Content in Mouse 3T3-L1 Cells. Molecules 2023; 28:7926. [PMID: 38067655 PMCID: PMC10708055 DOI: 10.3390/molecules28237926] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/22/2023] [Accepted: 12/02/2023] [Indexed: 12/18/2023] Open
Abstract
Differentiation-inducing factor 1 (DIF-1) isolated from the cellular slime mold Dictyostelium discoideum can inhibit mammalian calmodulin-dependent cAMP/cGMP phosphodiesterase (PDE1) in vitro. DIF-1 also promotes glucose uptake, at least in part, via a mitochondria- and AMPK-dependent pathway in mouse 3T3-L1 fibroblast cells, but the mechanism underlying this effect has not been fully elucidated. In this study, we investigated the effects of DIF-1 on intracellular cAMP and cGMP levels, as well as the effects that DIF-1 and several compounds that increase cAMP and cGMP levels have on glucose uptake in confluent 3T3-L1 cells. DIF-1 at 20 μM (a concentration that promotes glucose uptake) increased the level of intracellular cAMP by about 20% but did not affect the level of intracellular cGMP. Neither the PDE1 inhibitor 8-methoxymethyl-3-isobutyl-1-methylxanthine at 10-200 μM nor the broad-range PDE inhibitor 3-isobutyl-1-methylxanthine at 40-400 μM had any marked effects on glucose uptake. The membrane-permeable cAMP analog 8-bromo-cAMP at 200-1000 μM significantly promoted glucose uptake (by 20-25%), whereas the membrane-permeable cGMP analog 8-bromo-cGMP at 3-100 μM did not affect glucose uptake. The adenylate cyclase activator forskolin at 1-10 μM promoted glucose uptake by 20-30%. Thus, DIF-1 may promote glucose uptake by 3T3-L1 cells, at least in part, via an increase in intracellular cAMP level.
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Affiliation(s)
- Yuzuru Kubohara
- Laboratory of Health and Life Science, Graduate School of Health and Sports Science, Juntendo University, Inzai 270-1695, Japan
| | - Yuko Fukunaga
- Department of Animal Risk Management, Faculty of Risk and Crisis Management, Chiba Institute of Science, Choshi 288-0025, Japan;
| | - Haruhisa Kikuchi
- Division of Natural Medicines, Faculty of Pharmacy, Keio University, Tokyo 105-8512, Japan;
| | - Hidekazu Kuwayama
- Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba 305-8572, Japan;
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5
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Mita T, Hirai M, Maki Y, Nahar S, Yoshida N, Oshima Y, Kikuchi H, Kubohara Y. Derivatives of Dictyostelium differentiation-inducing factors suppress the growth of Plasmodium parasites in vitro and in vivo. Biochem Pharmacol 2021; 194:114834. [PMID: 34774530 DOI: 10.1016/j.bcp.2021.114834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 11/04/2021] [Accepted: 11/08/2021] [Indexed: 10/19/2022]
Abstract
Malaria, which is caused by protozoa of the genus Plasmodium, remains a major endemic public health problem worldwide. Since artemisinin combination therapies are used as a first-line treatment in all endemic regions, the emergence of parasites resistant to these regimens has become a serious problem. Differentiation-inducing factor 1 (DIF-1) is a chlorinated alkylphenone originally found in the cellular slime mold Dictyostelium discoideum. DIF-1 and its derivatives exhibit a range of biological activities. In the present study, we investigated the effects of 41 DIF derivatives on the growth of Plasmodium falciparum in vitro using four laboratory strains and 12 field isolates. Micromolar concentrations of several DIF derivatives strongly suppressed the growth of the four laboratory strains, including strains that exhibited resistance to chloroquine and artemisinin, as well as strains that were susceptible to these drugs. In addition, DIF-1(+2), the most potent derivative, strongly suppressed the growth of 12 field isolates. We also examined the effects of DIF-1(+2) on the activity of the rodent malarial parasite Plasmodium berghei in mice. Intraperitoneal administration of DIF-1(+2) over 4 days (50 or 70 mg/kg/day) significantly suppressed the growth of the parasite in the blood with no apparent adverse effects, and a dose of 70 mg/kg/day significantly prolonged animal survival. These results suggest that DIF derivatives, such as DIF-1(+2), could serve as new lead compounds for the development of antimalarial agents.
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Affiliation(s)
- Toshihiro Mita
- Department of Tropical Medicine and Parasitology, Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan.
| | - Makoto Hirai
- Department of Tropical Medicine and Parasitology, Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Yoshiko Maki
- Department of Tropical Medicine and Parasitology, Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Saifun Nahar
- Department of Tropical Medicine and Parasitology, Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Naoko Yoshida
- Department of Tropical Medicine and Parasitology, Faculty of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan
| | - Yoshiteru Oshima
- Head Office for Open Innovation Strategy, Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Haruhisa Kikuchi
- Laboratory of Natural Product Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan
| | - Yuzuru Kubohara
- Laboratory of Health and Life Science, Graduate School of Health and Sports Science, Juntendo University, Inzai, Chiba 270-1695, Japan
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6
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Kubohara Y, Homma Y, Shibata H, Oshima Y, Kikuchi H. Dictyostelium Differentiation-Inducing Factor-1 Promotes Glucose Uptake, at Least in Part, via an AMPK-Dependent Pathway in Mouse 3T3-L1 Cells. Int J Mol Sci 2021; 22:2293. [PMID: 33669058 PMCID: PMC7956221 DOI: 10.3390/ijms22052293] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 02/18/2021] [Accepted: 02/23/2021] [Indexed: 11/16/2022] Open
Abstract
Differentiation-inducing factor-1 (DIF-1) is a chlorinated alkylphenone (a polyketide) found in the cellular slime mold Dictyostelium discoideum. DIF-1 and its derivative, DIF-1(3M) promote glucose consumption in vitro in mammalian cells and in vivo in diabetic rats; they are expected to be the leading antiobesity and antidiabetes compounds. In this study, we investigated the mechanisms underlying the actions of DIF-1 and DIF-1(3M). In isolated mouse liver mitochondria, these compounds at 2-20 μM promoted oxygen consumption in a dose-dependent manner, suggesting that they act as mitochondrial uncouplers, whereas CP-DIF-1 (another derivative of DIF-1) at 10-20 μM had no effect. In confluent mouse 3T3-L1 fibroblasts, DIF-1 and DIF-1(3M) but not CP-DIF-1 induced phosphorylation (and therefore activation) of AMP kinase (AMPK) and promoted glucose consumption and metabolism. The DIF-induced glucose consumption was reduced by compound C (an AMPK inhibitor) or AMPK knock down. These data suggest that DIF-1 and DIF-1(3M) promote glucose uptake, at least in part, via an AMPK-dependent pathway in 3T3-L1 cells, whereas cellular metabolome analysis revealed that DIF-1 and DIF-1(3M) may act differently at least in part.
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Affiliation(s)
- Yuzuru Kubohara
- Laboratory of Health and Life Science, Graduate School of Health and Sports Science, Juntendo University, Inzai, Chiba 270-1695, Japan
| | - Yoshimi Homma
- Department of Biomolecular Science, Institute of Biomedical Sciences, School of Medicine, Fukushima Medical University, Fukushima 960-1295, Japan;
| | - Hiroshi Shibata
- Laboratory of Epigenetics and Metabolism, Institute for Molecular and Cellular Regulation, Gunma University, Gunma 371-8512, Japan;
| | - Yoshiteru Oshima
- Laboratory of Natural Product Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan; (Y.O.); (H.K.)
| | - Haruhisa Kikuchi
- Laboratory of Natural Product Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan; (Y.O.); (H.K.)
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7
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Zhang Y, Jing H, Meng B, Qian X, Ying W. L-cysteine functionalized straticulate C 3N 4 for the selective enrichment of glycopeptides. J Chromatogr A 2019; 1610:460545. [PMID: 31551124 DOI: 10.1016/j.chroma.2019.460545] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 09/11/2019] [Accepted: 09/14/2019] [Indexed: 02/05/2023]
Abstract
The facile enrichment of glycopeptides or glycoproteins poses great challenges for glycoproteomic research. In this study, a novel hydrophilic material, named zwitterionic hydrophilic L-cysteine derivatized straticulate-C3N4 composites (LCAC), were synthesized and evaluated for the enrichment of N-glycopeptides. LCAC exhibited good biocompatibility, excellent hydrophilicity and selectivity, by virtue of the large surface of C3N4 and the zwitterionic property offered by cysteine. LCAC demonstrated excellent performance for N-glycopeptide enrichment with the sensitivity of 0.033 fmol/µL, selectivity of 1:100, and high recovery rate (∼85%). The performance of LCAC was demonstrated by the identification of 35 N-glycopeptides from IgG, as well as capturing 1809 human urine N-glycopeptides corresponding to 876 N-glycoproteins. Comparing the LCAC with our developed phenylboronic acid functionalized material showed a certain complementary due to the different binding mechanism. The simple production and enhanced hydrophilic properties make the material a promising choice for glycoproteomics researches.
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Affiliation(s)
- Yong Zhang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, 102206, China; Key Lab of Transplant Engineering and Immunology, MOH, West China-Washington Mitochondria and Metabolism Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hongyu Jing
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, 102206, China
| | - Bo Meng
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, 102206, China
| | - Xiaohong Qian
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, 102206, China
| | - Wantao Ying
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, 102206, China.
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Antimicrobial Activities of Dictyostelium Differentiation-Inducing Factors and Their Derivatives. Biomolecules 2019; 9:biom9050163. [PMID: 31035614 PMCID: PMC6571789 DOI: 10.3390/biom9050163] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 04/25/2019] [Accepted: 04/25/2019] [Indexed: 01/22/2023] Open
Abstract
At the end of its life cycle, the cellular slime mold Dictyostelium discoideum forms a fruiting body consisting of spores and a multicellular stalk. Originally, the chlorinated alkylphenone differentiation-inducing factors (DIFs) -1 and -3 were isolated as stalk cell inducers in D. discoideum. Later, DIFs and their derivatives were shown to possess several biologic activities including antitumor and anti-Trypanosoma properties. In this study, we examined the antibacterial activities of approximately 30 DIF derivatives by using several bacterial species. Several of the DIF derivatives strongly suppressed the growth of the Gram-positive bacteria Staphylococcus aureus, Bacillus subtilis, and Enterococcus faecalis and Enterococcus faecium, at minimum inhibitory concentrations (MICs) in the sub-micromolar to low-micromolar range. In contrast, none of the DIF derivatives evaluated had any noteworthy effect on the growth of the Gram-negative bacterium Escherichia coli (MIC, >100 µM). Most importantly, several of the DIF derivatives strongly inhibited the growth of methicillin-resistant S. aureus and vancomycin-resistant E. faecalis and E. faecium. Transmission electron microscopy revealed that treatment with DIF derivatives led to the formation of distinct multilayered structures consisting of cell wall or plasma membrane in S. aureus. The present results suggest that DIF derivatives are good lead compounds for developing novel antimicrobials.
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Kubohara Y, Kikuchi H. Dictyostelium: An Important Source of Structural and Functional Diversity in Drug Discovery. Cells 2018; 8:E6. [PMID: 30583484 PMCID: PMC6356392 DOI: 10.3390/cells8010006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 12/19/2018] [Accepted: 12/19/2018] [Indexed: 12/12/2022] Open
Abstract
The cellular slime mold Dictyostelium discoideum is an excellent model organism for the study of cell and developmental biology because of its simple life cycle and ease of use. Recent findings suggest that Dictyostelium and possibly other genera of cellular slime molds, are potential sources of novel lead compounds for pharmacological and medical research. In this review, we present supporting evidence that cellular slime molds are an untapped source of lead compounds by examining the discovery and functions of polyketide differentiation-inducing factor-1, a compound that was originally isolated as an inducer of stalk-cell differentiation in D. discoideum and, together with its derivatives, is now a promising lead compound for drug discovery in several areas. We also review other novel compounds, including secondary metabolites, that have been isolated from cellular slime molds.
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Affiliation(s)
- Yuzuru Kubohara
- Laboratory of Health and Life Science, Graduate School of Health and Sports Science, Juntendo University, Inzai, Chiba 270-1695, Japan.
| | - Haruhisa Kikuchi
- Laboratory of Natural Product Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
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10
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Stolz A, Jooß K, Höcker O, Römer J, Schlecht J, Neusüß C. Recent advances in capillary electrophoresis-mass spectrometry: Instrumentation, methodology and applications. Electrophoresis 2018; 40:79-112. [PMID: 30260009 DOI: 10.1002/elps.201800331] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/06/2018] [Accepted: 09/07/2018] [Indexed: 12/14/2022]
Abstract
Capillary electrophoresis (CE) offers fast and high-resolution separation of charged analytes from small injection volumes. Coupled to mass spectrometry (MS), it represents a powerful analytical technique providing (exact) mass information and enables molecular characterization based on fragmentation. Although hyphenation of CE and MS is not straightforward, much emphasis has been placed on enabling efficient ionization and user-friendly coupling. Though several interfaces are now commercially available, research on more efficient and robust interfacing with nano-electrospray ionization (ESI), matrix-assisted laser desorption/ionization (MALDI) and inductively coupled plasma mass spectrometry (ICP) continues with considerable results. At the same time, CE-MS has been used in many fields, predominantly for the analysis of proteins, peptides and metabolites. This review belongs to a series of regularly published articles, summarizing 248 articles covering the time between June 2016 and May 2018. Latest developments on hyphenation of CE with MS as well as instrumental developments such as two-dimensional separation systems with MS detection are mentioned. Furthermore, applications of various CE-modes including capillary zone electrophoresis (CZE), nonaqueous capillary electrophoresis (NACE), capillary gel electrophoresis (CGE) and capillary isoelectric focusing (CIEF) coupled to MS in biological, pharmaceutical and environmental research are summarized.
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Affiliation(s)
| | - Kevin Jooß
- Faculty of Chemistry, Aalen University, Aalen, Germany.,Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München, Neuherberg, Germany
| | - Oliver Höcker
- Faculty of Chemistry, Aalen University, Aalen, Germany.,Instrumental Analytical Chemistry, University of Duisburg-Essen, Essen, Germany
| | - Jennifer Römer
- Faculty of Chemistry, Aalen University, Aalen, Germany.,Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, Regensburg, Germany
| | - Johannes Schlecht
- Faculty of Chemistry, Aalen University, Aalen, Germany.,Department of Pharmaceutical/Medicinal Chemistry, Friedrich Schiller University, Jena, Germany
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Takahashi K, Kikuchi H, Nguyen VH, Oshima Y, Ishigaki H, Nakajima-Shimada J, Kubohara Y. Biological Activities of Novel Derivatives of Differentiation-Inducing Factor 3 from Dictyostelium discoideum. Biol Pharm Bull 2018; 40:1941-1947. [PMID: 29093342 DOI: 10.1248/bpb.b17-00484] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Differentiation-inducing factor-3 (DIF-3; 1-(3-chloro-2,6-dihydroxy-4-methoxyphenyl)hexan-1-one), which is found in the cellular slime mold Dictyostelium discoideum, is a potential candidate compound for the development of new medicines; DIF-3 and its derivatives possess several beneficial biological activities, including anti-tumor, anti-Trypanosoma cruzi, and immunoregulatory effects. To assess the relationship between the biological activities of DIF-3 and its chemical structure, particularly in regard to its alkoxy group and the length of the alkyl chains at the acyl group, we synthesized two derivatives of DIF-3, 1-(3-chloro-2,6-dihydroxy-4-methoxyphenyl)octan-1-one (DIF-3(+3)) and 1-(3-chloro-2,6-dihydroxy-4-butoxyphenyl)-hexan-1-one (Hex-DIF-3), and investigated their biological activities in vitro. At micro-molar levels, DIF-3(+3) and Hex-DIF-3 exhibited strong anti-proliferative effects in tumor cell cultures, but their anti-T. cruzi activities at 1 µM in vitro were not as strong as those of other known DIF derivatives. In addition, Hex-DIF-3 at 5 µM significantly suppressed mitogen-induced interleukin-2 production in vitro in Jurkat T cells. These results suggest that DIF-3(+3) and Hex-DIF-3 are promising leads for the development of anti-cancer and immunosuppressive agents.
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Affiliation(s)
- Katsunori Takahashi
- Department of Medical Technology, Faculty of Health Science, Gunma Paz College
| | - Haruhisa Kikuchi
- Laboratory of Natural Product Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University
| | - Van Hai Nguyen
- Laboratory of Natural Product Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University
| | - Yoshiteru Oshima
- Laboratory of Natural Product Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University
| | - Hirotaka Ishigaki
- Department of Medical Technology, Faculty of Health Science, Gunma Paz College
| | - Junko Nakajima-Shimada
- Department of Molecular and Cellular Parasitology, Graduate School of Health Sciences, Gunma University
| | - Yuzuru Kubohara
- Laboratory of Health and Life Science, Graduate School of Heath and Sports Science, Juntendo University
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de Carvalho AK, da Silva S, Serafini E, de Souza DR, Farias HR, de Bem Silveira G, Silveira PCL, de Souza CT, Portela LV, Muller AP. Prior Exercise Training Prevent Hyperglycemia in STZ Mice by Increasing Hepatic Glycogen and Mitochondrial Function on Skeletal Muscle. J Cell Biochem 2016; 118:678-685. [DOI: 10.1002/jcb.25658] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 07/21/2016] [Indexed: 02/06/2023]
Affiliation(s)
- Afonso Kopczynski de Carvalho
- Departamento de Bioquímica; ICBS; UFRGS; Programa de Pós Graduação em Ciências Biológicas-Bioquímica; Rua Ramiro Barcelos, 2600 anexo Porto Alegre Rio Grande do Sul CEP 90035-003 Brazil
| | - Sabrina da Silva
- Unidade de Ciências da Saúde; Laboratório de Bioquímica e Fisiologia do Exercício Universidade do Extremo Sul Catarinense-UNESC; Av. Universitária, 1105-Bairro Universitário Criciúma Santa Catarina CEP 88806-000 Brazil
| | - Edenir Serafini
- Unidade de Ciências da Saúde; Laboratório de Bioquímica e Fisiologia do Exercício Universidade do Extremo Sul Catarinense-UNESC; Av. Universitária, 1105-Bairro Universitário Criciúma Santa Catarina CEP 88806-000 Brazil
| | - Daniela Roxo de Souza
- Unidade de Ciências da Saúde; Laboratório de Bioquímica e Fisiologia do Exercício Universidade do Extremo Sul Catarinense-UNESC; Av. Universitária, 1105-Bairro Universitário Criciúma Santa Catarina CEP 88806-000 Brazil
| | - Hemelin Resende Farias
- Unidade de Ciências da Saúde; Laboratório de Bioquímica e Fisiologia do Exercício Universidade do Extremo Sul Catarinense-UNESC; Av. Universitária, 1105-Bairro Universitário Criciúma Santa Catarina CEP 88806-000 Brazil
| | - Gustavo de Bem Silveira
- Unidade de Ciências da Saúde; Laboratório de Bioquímica e Fisiologia do Exercício Universidade do Extremo Sul Catarinense-UNESC; Av. Universitária, 1105-Bairro Universitário Criciúma Santa Catarina CEP 88806-000 Brazil
| | - Paulo Cesar Lock Silveira
- Unidade de Ciências da Saúde; Laboratório de Bioquímica e Fisiologia do Exercício Universidade do Extremo Sul Catarinense-UNESC; Av. Universitária, 1105-Bairro Universitário Criciúma Santa Catarina CEP 88806-000 Brazil
| | - Claudio Teodoro de Souza
- Unidade de Ciências da Saúde; Laboratório de Bioquímica e Fisiologia do Exercício Universidade do Extremo Sul Catarinense-UNESC; Av. Universitária, 1105-Bairro Universitário Criciúma Santa Catarina CEP 88806-000 Brazil
| | - Luis Valmor Portela
- Departamento de Bioquímica; ICBS; UFRGS; Programa de Pós Graduação em Ciências Biológicas-Bioquímica; Rua Ramiro Barcelos, 2600 anexo Porto Alegre Rio Grande do Sul CEP 90035-003 Brazil
| | - Alexandre Pastoris Muller
- Unidade de Ciências da Saúde; Laboratório de Bioquímica e Fisiologia do Exercício Universidade do Extremo Sul Catarinense-UNESC; Av. Universitária, 1105-Bairro Universitário Criciúma Santa Catarina CEP 88806-000 Brazil
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