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Kawecki NS, Norris SCP, Xu Y, Wu Y, Davis AR, Fridman E, Chen KK, Crosbie RH, Garmyn AJ, Li S, Mason TG, Rowat AC. Engineering multicomponent tissue by spontaneous adhesion of myogenic and adipogenic microtissues cultured with customized scaffolds. Food Res Int 2023; 172:113080. [PMID: 37689860 DOI: 10.1016/j.foodres.2023.113080] [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: 12/06/2022] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 09/11/2023]
Abstract
The integration of intramuscular fat-or marbling-into cultured meat will be critical for meat texture, mouthfeel, flavor, and thus consumer appeal. However, culturing muscle tissue with marbling is challenging since myocytes and adipocytes have different media and scaffold requirements for optimal growth and differentiation. Here, we present an approach to engineer multicomponent tissue using myogenic and adipogenic microtissues. The key innovation in our approach is the engineering of myogenic and adipogenic microtissues using scaffolds with customized physical properties; we use these microtissues as building blocks that spontaneously adhere to produce multicomponent tissue, or marbled cultured meat. Myocytes are grown and differentiated on gelatin nanofiber scaffolds with aligned topology that mimic the aligned structure of skeletal muscle and promotes the formation of myotubes in both primary rabbit skeletal muscle and murine C2C12 cells. Pre-adipocytes are cultured and differentiated on edible gelatin microbead scaffolds, which are customized to have a physiologically-relevant stiffness, and promote lipid accumulation in both primary rabbit and murine 3T3-L1 pre-adipocytes. After harvesting and stacking the individual myogenic and adipogenic microtissues, we find that the resultant multicomponent tissues adhere into intact structures within 6-12 h in culture. The resultant multicomponent 3D tissue constructs show behavior of a solid material with a Young's modulus of ∼ 2 ± 0.4 kPa and an ultimate tensile strength of ∼ 23 ± 7 kPa without the use of additional crosslinkers. Using this approach, we generate marbled cultured meat with ∼ mm to ∼ cm thickness, which has a protein content of ∼ 4 ± 2 g/100 g that is comparable to a conventionally produced Wagyu steak with a protein content of ∼ 9 ± 4 g/100 g. We show the translatability of this layer-by-layer assembly approach for microtissues across primary rabbit cells, murine cell lines, as well as for gelatin and plant-based scaffolds, which demonstrates a strategy to generate edible marbled meats derived from different species and scaffold materials.
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Affiliation(s)
- N Stephanie Kawecki
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Sam C P Norris
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Yixuan Xu
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Yifan Wu
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Ashton R Davis
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Ester Fridman
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Kathleen K Chen
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Rachelle H Crosbie
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Neurology, David Geffen School of Medicine, University of California LA, USA; Broad Stem Cell Center, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Andrea J Garmyn
- Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI 48824, USA
| | - Song Li
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Broad Stem Cell Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Thomas G Mason
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Physics and Astronomy, University of California, Los Angeles, Los Angeles, CA 90095, USA; California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Amy C Rowat
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA 90095, USA; Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA 90095, USA; Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Broad Stem Cell Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; California NanoSystems Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA.
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Yamada T, Kamiya M, Higuchi M. Metabolomic analysis of plasma and intramuscular adipose tissue between Wagyu and Holstein cattle. J Vet Med Sci 2021; 84:186-192. [PMID: 34897188 PMCID: PMC8920725 DOI: 10.1292/jvms.21-0562] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
In this experiment, we studied the effects of breed differences in intramuscular
adipogenic capacity on the metabolomic profiles of plasma and intramuscular adipose tissue
between Wagyu (high intramuscular adipogenic capacity) and Holstein (low intramuscular
adipogenic capacity) using capillary electrophoresis time-of-flight mass spectrometry
(CE-TOFMS). We showed that the intramuscular fat content, intramuscular adipocyte size and
the expression of adipogenic transcription factors (C/EBPβ and C/EBPα) of Wagyu were
significantly higher than those of Holstein. Metabolites detected at significantly higher
levels in Wagyu plasma were related to the tricarboxylic acid cycle, lipid synthesis,
fatty acid metabolism, diabetes, and glucose homeostasis. In contrast, metabolites
detected at significantly higher levels in Holstein plasma were related to choline
metabolism, the ethanolamine pathway, glutathione homeostasis, nucleic acid metabolism,
and amino acid metabolism. Metabolites detected at significantly higher levels in Holstein
intramuscular adipose tissue were related to nucleic acid metabolism, amino acid
metabolism, amino sugar metabolism, beta oxidation, and the ethanolamine pathway. There
were no metabolites significantly higher levels in Wagyu intramuscular adipose tissue.
These results indicate candidate biomarkers of breed differences in intramuscular
adipogenic capacity between Wagyu and Holstein.
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Affiliation(s)
- Tomoya Yamada
- Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization
| | - Mituru Kamiya
- Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization
| | - Mikito Higuchi
- Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization
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Antonelo D, Beline M, Silva SL, Gómez JFM, Ferreira C, Zhang X, Pavan B, Koulicoff L, Rosa A, Goulart R, Gerrard DE, Suman SP, Schilling W, Balieiro JC. Variations in intramuscular fat content and profile in Angus x Nellore steers under different feeding strategies contribute to color and tenderness development in longissimus thoracis. MEAT AND MUSCLE BIOLOGY 2021. [DOI: 10.22175/mmb.13043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Muscle from cattle reared under different finishing regime (grain vs. forage) and growth rate may have divergent metabolic signatures that are reflective of their inherent differences in biochemical processes that may impact its subsequent transformation into high quality beef. Differences in muscle lipid profiles were characterized in Angus x Nellore crossbred steers, using multiple reaction monitoring (MRM)-profiling, to identify potential metabolic signatures correlated to beef color and tenderness in the longissimus thoracis muscle of cattle fed in either a feedlot- or pasture-based system programmed to achieve either a high or low growth rate. A total of 440 MRMs were significant, which were related mainly to triglycerides and phosphatidylcholine lipids. Distinct clusters between feeding strategies for the lipid dataset were revealed, which affected glycerolipid metabolism (P = 0.004), phospholipid metabolism (P = 0.009), sphingolipid metabolism (P = 0.050) and mitochondrial beta-oxidation of long chain saturated fatty acids (P = 0.073) pathways. Lipid content and profile differed to feeding strategies, which were related to L*, a*, and tenderness. These findings provide a comprehensive and in-depth understanding of lipidomic profiling of beef cattle finished under different feeding strategies and provides a basis for the relationship between lipid content and profiles and beef quality development.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Wes Schilling
- Mississippi State University Department of Food Science, Nutrition and Health Promotion
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Feeding strategies impact animal growth and beef color and tenderness. Meat Sci 2021; 183:108599. [PMID: 34365253 DOI: 10.1016/j.meatsci.2021.108599] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 06/01/2021] [Accepted: 06/04/2021] [Indexed: 11/22/2022]
Abstract
The impact of growth rate (GR) and finishing regime (FR) on growth and meat quality traits of Angus x Nellore crossbred steers, harvested at a constant body weight (530 ± 20 kg) or time on feed (140 days), was evaluated. Treatments were: 1) feedlot, high GR; 2) feedlot, low GR; 3) pasture, high GR and 4) pasture, low GR. Live body composition, carcass and meat quality traits were evaluated. High GR had greater impact on muscle and fat deposition in feedlot-finished, but not in pasture-finished animals. Feedlot animals had higher Longissimus muscle area, backfat thickness, meat luminosity and tenderness when compared to pasture groups. Moreover, pasture- and feedlot-finished animals with similar GR did not differ in the chromatic attributes of non-aged meat, regardless of endpoint. Thus, GR appeared to be the main factor driving beef chromatic parameters, while FR had a major impact on achromatic attributes and tenderness of meat.
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