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Nits OS, Sementsova MV, Osipova ES, Tereshonok DV, Gladkov EA. IPPRAS Cryobank for the Conservation of Orthodox Seeds of Rare, Endangered, Medicinal, and Ornamental Plant Species-Current Research. Plants (Basel) 2024; 13:1354. [PMID: 38794425 DOI: 10.3390/plants13101354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 04/23/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024]
Abstract
Plant cryobanks play a significant role in modern science and breeding. They contribute to the recovery of lost species, the emergence of new plant varieties, and help preserve and explore the diversity of the plant world. The IPPRAS Cryobank collection is constantly supplemented with new samples, while, at the same time, the stored samples are being monitored. In order to test seed germination, seeds of Allium and Veratrum species were thawed. Rare Allium species seeds, such as A. nutans, A. schoenoprasum, and A. victorialis were stored in liquid nitrogen for 17, 19, and 30 years, respectively. Long-term cryopreservation decreased germination rates for A. nutans from 96.55 to 50.00%, for A. schoenoprasum from 72.00 to 62.75%, and for A. victorialis from 90.00 to 83.05%. Seeds of a rare medicinal species, Veratrum lobelianum, were stored in liquid nitrogen for 18 years; the seed germination rate during this storage period has been significantly decreased from 75.00 to 14.81%. V. nigrum seeds were also collected and frozen in liquid nitrogen for 3 days. Short-term cryopreservation did not result in a statistically significant change in germination rates (from 79.71 to 82.69%). The seeds of an endangered ornamental species, Cypripedium calceolus, were collected and kept frozen for 3 days. After cryopreservation, the seeds were planted on three different media, as follows: ½ MS, MS with 10% coconut milk, and BM1. On ½ MS medium, 24.98% seeds formed protocorms, while on MS medium with 10% coconut milk, this number was 10.02%, and on BM1 medium, it was 15.02%, respectively; however, after 2.5 months, all of the protocorms died. Thus, it appears that the existing protocol for seed cryopreservation of C. calceolus needs further improvement. The size, weight, and free water content (WC) of six previously cryopreserved Stipa species and three Allium species were measured. For all the Allium and Stipa species studied, we found no correlation between seed size, WC, and cryotolerance. We also found no correlation between the life form, which reflects the water requirement of the species, and cryotolerance.
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Affiliation(s)
- Olga Sergeevna Nits
- K.A. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences (IPP RAS), Botanicheskaya 35, 127276 Moscow, Russia
| | - Mariya Vladimirovna Sementsova
- K.A. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences (IPP RAS), Botanicheskaya 35, 127276 Moscow, Russia
| | - Ekaterina Sergeevna Osipova
- K.A. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences (IPP RAS), Botanicheskaya 35, 127276 Moscow, Russia
| | - Dmitry Viktorovich Tereshonok
- K.A. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences (IPP RAS), Botanicheskaya 35, 127276 Moscow, Russia
| | - Evgeny Aleksandrovich Gladkov
- K.A. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences (IPP RAS), Botanicheskaya 35, 127276 Moscow, Russia
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Yuorieva N, Sinetova M, Messineva E, Kulichenko I, Fomenkov A, Vysotskaya O, Osipova E, Baikalova A, Prudnikova O, Titova M, Nosov AV, Popova E. Plants, Cells, Algae, and Cyanobacteria In Vitro and Cryobank Collections at the Institute of Plant Physiology, Russian Academy of Sciences-A Platform for Research and Production Center. Biology (Basel) 2023; 12:838. [PMID: 37372123 DOI: 10.3390/biology12060838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/04/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023]
Abstract
Ex situ collections of algae, cyanobacteria, and plant materials (cell cultures, hairy and adventitious root cultures, shoots, etc.) maintained in vitro or in liquid nitrogen (-196 °C, LN) are valuable sources of strains with unique ecological and biotechnological traits. Such collections play a vital role in bioresource conservation, science, and industry development but are rarely covered in publications. Here, we provide an overview of five genetic collections maintained at the Institute of Plant Physiology of the Russian Academy of Sciences (IPPRAS) since the 1950-1970s using in vitro and cryopreservation approaches. These collections represent different levels of plant organization, from individual cells (cell culture collection) to organs (hairy and adventitious root cultures, shoot apices) to in vitro plants. The total collection holdings comprise more than 430 strains of algae and cyanobacteria, over 200 potato clones, 117 cell cultures, and 50 strains of hairy and adventitious root cultures of medicinal and model plant species. The IPPRAS plant cryobank preserves in LN over 1000 specimens of in vitro cultures and seeds of wild and cultivated plants belonging to 457 species and 74 families. Several algae and plant cell culture strains have been adapted for cultivation in bioreactors from laboratory (5-20-L) to pilot (75-L) to semi-industrial (150-630-L) scale for the production of biomass with high nutritive or pharmacological value. Some of the strains with proven biological activities are currently used to produce cosmetics and food supplements. Here, we provide an overview of the current collections' composition and major activities, their use in research, biotechnology, and commercial application. We also highlight the most interesting studies performed with collection strains and discuss strategies for the collections' future development and exploitation in view of current trends in biotechnology and genetic resources conservation.
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Affiliation(s)
- Natalya Yuorieva
- K.A. Timiryazev Institute of Plant Physiology of Russian Academy of Sciences, Botanicheskaya 35, 127276 Moscow, Russia
| | - Maria Sinetova
- K.A. Timiryazev Institute of Plant Physiology of Russian Academy of Sciences, Botanicheskaya 35, 127276 Moscow, Russia
| | - Ekaterina Messineva
- K.A. Timiryazev Institute of Plant Physiology of Russian Academy of Sciences, Botanicheskaya 35, 127276 Moscow, Russia
| | - Irina Kulichenko
- K.A. Timiryazev Institute of Plant Physiology of Russian Academy of Sciences, Botanicheskaya 35, 127276 Moscow, Russia
| | - Artem Fomenkov
- K.A. Timiryazev Institute of Plant Physiology of Russian Academy of Sciences, Botanicheskaya 35, 127276 Moscow, Russia
| | - Olga Vysotskaya
- K.A. Timiryazev Institute of Plant Physiology of Russian Academy of Sciences, Botanicheskaya 35, 127276 Moscow, Russia
| | - Ekaterina Osipova
- K.A. Timiryazev Institute of Plant Physiology of Russian Academy of Sciences, Botanicheskaya 35, 127276 Moscow, Russia
| | - Angela Baikalova
- K.A. Timiryazev Institute of Plant Physiology of Russian Academy of Sciences, Botanicheskaya 35, 127276 Moscow, Russia
| | - Olga Prudnikova
- K.A. Timiryazev Institute of Plant Physiology of Russian Academy of Sciences, Botanicheskaya 35, 127276 Moscow, Russia
| | - Maria Titova
- K.A. Timiryazev Institute of Plant Physiology of Russian Academy of Sciences, Botanicheskaya 35, 127276 Moscow, Russia
| | - Alexander V Nosov
- K.A. Timiryazev Institute of Plant Physiology of Russian Academy of Sciences, Botanicheskaya 35, 127276 Moscow, Russia
| | - Elena Popova
- K.A. Timiryazev Institute of Plant Physiology of Russian Academy of Sciences, Botanicheskaya 35, 127276 Moscow, Russia
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Barbosa BB, Evangelista ITA, Soares ARB, Leão DL, Pereira RJG, Domingues SFS. Kinetic vitrification: concepts and perspectives in animal sperm cryopreservation. Anim Reprod 2023; 20:e20220096. [PMID: 37228692 PMCID: PMC10205064 DOI: 10.1590/1984-3143-ar2022-0096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 04/04/2023] [Indexed: 05/27/2023] Open
Abstract
Sperm cryopreservation is an important tool for genetic diversity management programs and the conservation of endangered breeds and species. The most widely used method of sperm conservation is slow freezing, however, during the process, sperm cells suffer from cryoinjury, which reduces their viability and fertility rates. One of the alternatives to slow freezing is vitrification, that consist on rapid freezing, in which viable cells undergo glass-like solidification. This technology requires large concentrations of permeable cryoprotectants (P- CPA's) which increase the viscosity of the medium to prevent intracellular ice formation during cooling and warming, obtaining successful results in vitrification of oocytes and embryos. Unfortunately, this technology failed when applied to vitrification of sperm due to its higher sensitivity to increasing concentrations of P-CPAs. Alternatively, a technique termed 'kinetic sperm vitrification' has been used and consists in a technique of permeant cryoprotectant-free cryopreservation by direct plunging of a sperm suspension into liquid nitrogen. Some of the advantages of kinetic vitrification are the speed of execution and no rate-controlled equipment required. This technique has been used successfully and with better results for motility in human (50-70% motility recovery), dog (42%), fish (82%) and donkey (21.7%). However, more studies are required to improve sperm viability after devitrification, especially when it comes to motility recovery. The objective of this review is to present the principles of kinetic vitrification, the main findings in the literature, and the perspectives for the utilization of this technique as a cryopreservation method.
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Affiliation(s)
- Bianca Barreto Barbosa
- Laboratório de Biotecnologia e Medicina de Animais da Amazônia, Universidade Federal do Pará, Castanhal, PA, Brasil.
- Programa de Pós-graduação em Saúde e Produção Animal na Amazônia, Universidade Federal Rural da Amazônia, Belém, PA, Brasil.
| | - Inara Tayná Alves Evangelista
- Laboratório de Biotecnologia e Medicina de Animais da Amazônia, Universidade Federal do Pará, Castanhal, PA, Brasil.
| | - Airton Renan Bastos Soares
- Laboratório de Biotecnologia e Medicina de Animais da Amazônia, Universidade Federal do Pará, Castanhal, PA, Brasil.
| | - Danuza Leite Leão
- Laboratório de Biotecnologia e Medicina de Animais da Amazônia, Universidade Federal do Pará, Castanhal, PA, Brasil.
- Instituto de Desenvolvimento Sustentável Mamirauá, Tefé, AM, Brasil.
| | - Ricardo José Garcia Pereira
- Departamento de Reprodução Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, SP, Brasil.
| | - Sheyla Farhayldes Souza Domingues
- Laboratório de Biotecnologia e Medicina de Animais da Amazônia, Universidade Federal do Pará, Castanhal, PA, Brasil.
- Programa de Pós-graduação em Saúde e Produção Animal na Amazônia, Universidade Federal Rural da Amazônia, Belém, PA, Brasil.
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Vollmer R, Villagaray R, Castro M, Cárdenas J, Pineda S, Espirilla J, Anglin N, Ellis D, Rennó Azevedo VC. The world's largest potato cryobank at the International Potato Center (CIP) - Status quo, protocol improvement through large-scale experiments and long-term viability monitoring. Front Plant Sci 2022; 13:1059817. [PMID: 36523628 PMCID: PMC9746984 DOI: 10.3389/fpls.2022.1059817] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 11/14/2022] [Indexed: 06/17/2023]
Abstract
Long-term conservation of Plant Genetic Resources (PGR) is a key priority for guaranteeing food security and sustainability of agricultural systems for current and future generations. The need for the secure conservation of genetic resources collections ex situ is critical, due to rapid and extreme climatic changes which are threatening and reducing biodiversity in their natural environments. The International Potato Center (CIP) conserves one of the most complete and diverse genetic resources collections of potato, with more than 7500 accessions composed of 4900 cultivated potato and 2600 potato wild relative accessions. The clonal conservation of cultivated potato, principally landraces, through in vitro or field collections is indispensable to maintain fixed allelic states, yet it is costly and labor-intensive. Cryopreservation, the conservation of biological samples in liquid nitrogen (-196°C), is considered the most reliable and cost-efficient long-term ex-situ conservation method for clonal crops. Over the last decade, CIP has built one of the largest potato cryobanks worldwide, cyopreserving more than 4000 cultivated potato accessions which represents 84% of the total cultivated potato collection currently conserved at CIP. In approximately, four years the entire potato collection will be cryopreserved. The development of an applied, robust cryopreservation protocol for potato, serves as a model for other clonally maintained crop collections. The CIP cryobank designs experiments with a high number of genetically diverse genotypes (70-100 accessions, seven cultivated species), to obtain reliable results that can be extrapolated over the collection as genotypes can often respond variably to the same applied conditions. Unlike most published reports on cryopreservation of plants, these large-scale experiments on potato are unique as they examine the acclimatization process of in vitro plants prior to, as well as during cryopreservation on up to ten times the number of genotypes conventionally reported in the published literature. As a result, an operational cryopreservation protocol for potato has advanced that works well across diverse potato accessions, not only with reduced processing time and costs, but also with an increased average full-plant recovery rate from 58% to 73% (+LN) for routine cryopreservation. The present article describes the composition of CIP's cryobank, the cryopreservation protocol, methodology for the dynamic improvement of the operational protocol, as well as data collected on regeneration from long term cryopreserved potatoes.
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Affiliation(s)
| | | | - Mario Castro
- Genebank, International Potato Center (CIP), Lima, Peru
| | - José Cárdenas
- Genebank, International Potato Center (CIP), Lima, Peru
| | - Sandra Pineda
- Genebank, International Potato Center (CIP), Lima, Peru
| | | | - Noelle Anglin
- Genebank, International Potato Center (CIP), Lima, Peru
- Small Grains and Potato Germplasm Research unit, US Department of Agriculture (USDA), Aberdeen, ID, United States
| | - Dave Ellis
- Genebank, International Potato Center (CIP), Lima, Peru
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Silyukova YL, Stanishevskaya OI, Dementieva NV. The current state of the problem of in vitro gene pool preservation in poultry. Vavilovskii Zhurnal Genet Selektsii 2020; 24:176-184. [PMID: 33659797 PMCID: PMC7716548 DOI: 10.18699/vj20.611] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
This review presents the current progress in and approaches to in vitro conservation of reproductive
cells of animals, including birds, such as cryopreservation and freeze-drying, as well as epigenetic conditions for
restoring
viable spermatozoa and female gametes after conservation. Cryopreservation is an effective way to preserve
reproductive cells of various species of animals and birds. In vitro gene pool conservation is aimed primarily
to the restoration of extinct breeds and populations and to the support of genetic diversity in populations prone
to genetic drift. It is the combination of ex situ in vivo and ex situ in vitro methods that can form the basic principles
of the strategy of animal genetic diversity preservation. Also, use of cryopreserved semen allows faster breeding
in industrial poultry farming. Despite numerous advances in semen cryobiology, new methods that can more efficiently
restore semen fertility after cryopreservation are being sought. The mechanisms underlying the effect of
cryopreservation on the semen parameters of cocks are insufficiently understood. The review reflects the results
of recent research in the field of cryopreservation of female and male germ cells, embryonic cells, the search for
new ways in the field of genetic diversity in vitro (the development of new cryoprotective media and new conservation
technologies: freeze-drying). Molecular aspects of cryopreservation and the mechanisms of cryopreservation
influence on the epigenetic state of cells are highlighted. Data on the results of studies in the field of male
reproductive cell lyophilization are presented. The freeze-drying of reproductive cells, as a technology for cheaper
access to the genetic material of wild and domestic animals, compared to cryopreservation, attracts the attention
of scientists in Japan, Israel, Egypt, Spain, and France. There is growing interest in the use of lyophilized semen
in genetic engineering technologies. Methods of freeze-drying are developed taking into account the species of
birds. Organizational and legal ways of solving the problems of in vitro conservation of genetic resources of farm
animals, including birds, are proposed.
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Affiliation(s)
- Y L Silyukova
- Russian Research Institute of Farm Animal Genetics and Breeding - Branch of the L.K. Ernst Federal Science Center for Animal Husbandry, Pushkin, St. Petersburg, Russia
| | - O I Stanishevskaya
- Russian Research Institute of Farm Animal Genetics and Breeding - Branch of the L.K. Ernst Federal Science Center for Animal Husbandry, Pushkin, St. Petersburg, Russia
| | - N V Dementieva
- Russian Research Institute of Farm Animal Genetics and Breeding - Branch of the L.K. Ernst Federal Science Center for Animal Husbandry, Pushkin, St. Petersburg, Russia
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Kovina MV, Karnaukhov AV, Krasheninnikov ME, Kovin AL, Gazheev ST, Sergievich LA, Karnaukhova EV, Bogdanenko EV, Balyasin MV, Khodarovich YM, Dyuzheva TG, Lyundup AV. Extension of Maximal Lifespan and High Bone Marrow Chimerism After Nonmyeloablative Syngeneic Transplantation of Bone Marrow From Young to Old Mice. Front Genet 2019; 10:310. [PMID: 31031800 PMCID: PMC6473025 DOI: 10.3389/fgene.2019.00310] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 03/21/2019] [Indexed: 02/01/2023] Open
Abstract
The goal of this work was to determine the effect of nonablative syngeneic transplantation of young bone marrow (BM) to laboratory animals (mice) of advanced age upon maximum duration of their lifespan. To do this, transplantation of 100 million nucleated cells from BM of young syngeneic donors to an old nonablated animal was performed at the time when half of the population had already died. As a result, the maximum lifespan (MLS) increased by 28 ± 5%, and the survival time from the beginning of the experiment increased 2.8 ± 0.3-fold. The chimerism of the BM 6 months after the transplantation was 28%.
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Affiliation(s)
- Marina V Kovina
- Institute for Regenerative Medicine, Sechenov University, Moscow, Russia
| | - Alexey V Karnaukhov
- Institute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | | | - Artem L Kovin
- Institute for Regenerative Medicine, Sechenov University, Moscow, Russia
| | - Sarul T Gazheev
- Institute for Regenerative Medicine, Sechenov University, Moscow, Russia
| | - Larisa A Sergievich
- Institute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | - Elena V Karnaukhova
- Institute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | - Elena V Bogdanenko
- Institute of General Pathology and Pathophysiology, Russian Academy of Sciences, Moscow, Russia
| | - Maxim V Balyasin
- Institute for Regenerative Medicine, Sechenov University, Moscow, Russia
| | - Yury M Khodarovich
- Department of Molecular Immunology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | | | - Alexey V Lyundup
- Institute for Regenerative Medicine, Sechenov University, Moscow, Russia
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Kovina MV, Krasheninnikov ME, Dyuzheva TG, Danilevsky MI, Klabukov ID, Balyasin MV, Chivilgina OK, Lyundup AV. Human endometrial stem cells: High-yield isolation and characterization. Cytotherapy 2018; 20:361-374. [PMID: 29397307 DOI: 10.1016/j.jcyt.2017.12.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 12/11/2017] [Accepted: 12/24/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND Menstrual blood is only recently and still poorly studied, but it is an abundant and noninvasive source of highly proliferative mesenchymal stromal cells (MSCs). However, no appropriate isolation method has been reported due to its high viscosity and high content of clots and desquamated epithelium. METHODS We studied three different isolation approaches and their combinations: ammonium-containing lysing buffer, distilled water and gradient-density centrifugation. We tested the proliferative capacity, morphology, surface markers and pluripotency of the resulting cells. RESULTS Our isolation method yields up to four million nucleated cells per milliliter of initial blood, of which about 0.2-0.3% are colony-forming cells expressing standard mesenchymal markers CD90, CD105 and CD73, but not expressing CD45, CD34, CD117, CD133 or HLA-G. The cells have high proliferative potential (doubling in 26 h) and the ability to differentiate into adipocytes and osteocytes. Early endometrial MSCs (eMSCs) express epithelial marker cytokeratin 7 (CK7). CK7 is easily induced in later passages in a prohepatic environment. We show for the first time that a satisfactory and stable yield of eMSCs is observed throughout the whole menstrual period (5 consecutive days) of a healthy woman. DISCUSSION The new cost/yield adequate method allows isolation from menstrual blood a relatively homogenous pool of highly proliferative MSCs, which seem to be the best candidates for internal organ therapy due to their proepithelial background (early expression of CK7 and its easy induction in later passages) and for mass cryobanking due to their high yield and availability.
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Affiliation(s)
- Marina V Kovina
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia.
| | - Michael E Krasheninnikov
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
| | - Tatiana G Dyuzheva
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
| | - Michael I Danilevsky
- Sechenov First Moscow State Medical University, Department of Biological Chemistry, Moscow, Russia
| | - Ilya D Klabukov
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
| | - Maxim V Balyasin
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
| | - Olga K Chivilgina
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
| | - Alexey V Lyundup
- Sechenov First Moscow State Medical University, Institute for Regenerative Medicine, Moscow, Russia
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Lotz L, Maktabi A, Hoffmann I, Findeklee S, Beckmann MW, Dittrich R. Ovarian tissue cryopreservation and retransplantation--what do patients think about it? Reprod Biomed Online 2016; 32:394-400. [PMID: 26825247 DOI: 10.1016/j.rbmo.2015.12.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Revised: 12/19/2015] [Accepted: 12/22/2015] [Indexed: 11/28/2022]
Abstract
Cryopreservation of ovarian tissue has been successfully applied clinically, with over 60 live births to date. The aim of the present study was to perform a survey of patients who have had ovarian tissue cryopreserved in the Department of Obstetrics and Gynecology, Erlangen University Hospital, in order to obtain information about: why patients opt for fertility preservation; their current fertility; pregnancy attempts and outcomes; and their intended plans for the cryopreserved ovarian tissue. In total, 147 women took part in the survey (average age 25.0 ± 7.0 years; response rate 48%; mean follow-up period 6 years). Sixty-six reported regular menstrual cycles; 48 were amenorrhoeic. Sixty-two women had tried to conceive; 33 reported pregnancies. Twenty-five had delivered healthy children after conceiving naturally; eight had conceived with assisted reproduction. Five patients had had their ovarian tissue retransplanted. Although many patients continued to have ovarian function, none of them regretted choosing cryopreservation of ovarian tissue. Cryopreservation of ovarian tissue is an effective option and is very important for women diagnosed with cancer. Analyses of the clinical outcomes in these patients are essential in order to identify those patients capable of benefiting most from the procedure and in order to improve the technique.
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Affiliation(s)
- Laura Lotz
- Department of Obstetrics and Gynecology, Erlangen University Hospital, Friedrich Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | - Amina Maktabi
- Department of Obstetrics and Gynecology, Erlangen University Hospital, Friedrich Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | - Inge Hoffmann
- Department of Obstetrics and Gynecology, Erlangen University Hospital, Friedrich Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | - Sebastian Findeklee
- Department of Obstetrics and Gynecology, Erlangen University Hospital, Friedrich Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | - Matthias W Beckmann
- Department of Obstetrics and Gynecology, Erlangen University Hospital, Friedrich Alexander University of Erlangen-Nuremberg, Erlangen, Germany
| | - Ralf Dittrich
- Department of Obstetrics and Gynecology, Erlangen University Hospital, Friedrich Alexander University of Erlangen-Nuremberg, Erlangen, Germany.
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Candek K, Gregorič M, Kostanjšek R, Frick H, Kropf C, Kuntner M. Targeting a portion of central European spider diversity for permanent preservation. Biodivers Data J 2013:e980. [PMID: 24723774 PMCID: PMC3964710 DOI: 10.3897/bdj.1.e980] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Accepted: 08/29/2013] [Indexed: 11/24/2022] Open
Abstract
Given the limited success of past and current conservation efforts, an alternative approach is to preserve tissues and genomes of targeted organisms in cryobanks to make them accessible for future generations. Our pilot preservation project aimed to obtain, expertly identify, and permanently preserve a quarter of the known spider species diversity shared between Slovenia and Switzerland, estimated at 275 species. We here report on the faunistic part of this project, which resulted in 324 species (227 in Slovenia, 143 in Switzerland) for which identification was reasonably established. This material is now preserved in cryobanks, is being processed for DNA barcoding, and is available for genomic studies.
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Affiliation(s)
- Klemen Candek
- Institute of Biology, Scientific Research Centre, Slovenian Academy of Sciences and Arts, Ljubljana, Slovenia
| | - Matjaž Gregorič
- Institute of Biology, Scientific Research Centre, Slovenian Academy of Sciences and Arts, Ljubljana, Slovenia
| | - Rok Kostanjšek
- Department of Biology, Biotechnical faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Holger Frick
- National Collection of Natural History, Office of Environment, Vaduz, Liechtenstein
| | - Christian Kropf
- Department of Invertebrates, Natural History Museum, Bern, Switzerland
| | - Matjaž Kuntner
- Institute of Biology, Scientific Research Centre, Slovenian Academy of Sciences and Arts, Ljubljana, Slovenia ; National Museum of Natural History, Smithsonian Institution, Washington, DC, United States of America
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